CN206920526U - Multi-terminal direct current test system - Google Patents
Multi-terminal direct current test system Download PDFInfo
- Publication number
- CN206920526U CN206920526U CN201720411498.XU CN201720411498U CN206920526U CN 206920526 U CN206920526 U CN 206920526U CN 201720411498 U CN201720411498 U CN 201720411498U CN 206920526 U CN206920526 U CN 206920526U
- Authority
- CN
- China
- Prior art keywords
- receiving end
- current conversion
- vsc
- sending end
- sending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 44
- 238000006243 chemical reaction Methods 0.000 claims description 128
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000001052 transient effect Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides a multi-end direct current test system relates to the high voltage direct current transmission field, can test the characteristic of multi-end direct current transmission unit. The multi-terminal direct current test system comprises a multi-terminal direct current transmission unit and an adjusting unit; the multi-terminal direct current transmission unit comprises a sending-end equivalent power source, a sending-end VSC type converter station, i receiving-end VSC type converter stations and i receiving-end equivalent power sources; the input end of the sending end VSC type converter station is connected with a sending end equivalent power supply, the output end of the sending end VSC type converter station is connected with the input end of the 1 st receiving end VSC type converter station, the input end of the ith receiving end VSC type converter station is connected with the output end of the (i-1) th receiving end VSC type converter station, and the output ends of the i receiving end VSC type converter stations are further connected with the i receiving end equivalent power supplies one by one; the regulating unit is connected with the transmitting end VSC type converter station and/or at least one receiving end VSC type converter station. The multi-terminal direct current test system is used for testing the characteristics of the multi-terminal direct current transmission unit.
Description
Technical field
It the utility model is related to high-voltage dc transmission electrical domain, more particularly to a kind of multiterminal element test system.
Background technology
D.C. high voltage transmission has obtained more and more extensive answer as a kind of electrical energy transportation mode in modern power systems
With.Interconnected between large regional grid by direct current transportation, be advantageously implemented the asynchronous operation between large regional grid with isolating, can
Overcome stable problem caused by the excessive AC electric power systems long range interconnection of capacity, and then improve the dynamic product of large regional grid
Matter and the stability for improving large regional grid.Traditional direct current transportation is mostly double ended system, is only capable of realizing point-to-point direct current
Power transmits, when using direct current interconnection between multiple AC systems, it is necessary to which a plurality of DC power transmission line, investment will be significantly greatly increased in this
Cost and operating cost.In this case, multi-terminal direct current transmission system is arisen at the historic moment.
For at present, because multi-terminal direct current transmission system is a kind of newer direct current transportation mode, then to multiterminal element
The characteristic of transmission system carries out deep analysis and research is necessary.
Utility model content
The utility model provides a kind of multiterminal element test system, and the characteristic of multi-terminal HVDC transmission unit can be surveyed
Examination.
To reach above-mentioned purpose, the utility model adopts the following technical scheme that：
The utility model provides a kind of multiterminal element test system, and the multiterminal element test system includes multiterminal element
The adjustment unit of power transmission unit and the operational factor for adjusting the multi-terminal HVDC transmission unit；The multi-terminal HVDC transmission
Unit includes sending end equivalent power supply, sending end VSC types current conversion station, i receiving end VSC types current conversion station and i receiving end equivalent power supply；Its
In, the input of the sending end VSC type current conversion stations is connected with the sending end equivalent power supply, the sending end VSC type current conversion stations it is defeated
Go out end with the input of the 1st receiving end VSC type current conversion station to be connected, the input of i-th receiving end VSC type current conversion station and the i-th -1
The output end of receiving end VSC type current conversion stations is connected, the output end of i receiving end VSC type current conversion station also with i receiving end equivalent power supply one by one
It is corresponding to be connected, i >=2；The adjustment unit and the sending end VSC types current conversion station and/or at least one receiving end VSC types current conversion station phase
Even.
In multiterminal element test system provided by the utility model, multi-terminal HVDC transmission unit is specifically included for real
Sending end equivalent power supply, sending end VSC types current conversion station, i receiving end VSC types current conversion station and the i receiving end equivalent power supply of existing direct current transportation,
Adjustment unit is connected with sending end VSC types current conversion station and/or at least one receiving end VSC type current conversion stations, and this makes it possible to utilize regulation
Unit is by adjusting the operational factor of multi-terminal HVDC transmission unit, so as to test multi-terminal HVDC transmission unit in different operational factors
Under characteristic, and then realize deep analysis and research are carried out to multi-terminal HVDC transmission unit.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
The structural representation one for the multiterminal element test system that Fig. 1 is provided by the utility model embodiment；
The structural representation two for the multiterminal element test system that Fig. 2 is provided by the utility model embodiment；
The structural representation three for the multiterminal element test system that Fig. 3 is provided by the utility model embodiment；
The structural representation four for the multiterminal element test system that Fig. 4 is provided by the utility model embodiment；
The structural representation five for the multiterminal element test system that Fig. 5 is provided by the utility model embodiment；
The structural representation six for the multiterminal element test system that Fig. 6 is provided by the utility model embodiment；
The structural representation seven for the multiterminal element test system that Fig. 7 is provided by the utility model embodiment.
Description of reference numerals：
1- sending end equivalent power supplies；2- sending end VSC type current conversion stations；
3- receiving end VSC type current conversion stations；4- receiving end equivalent power supplies；
51- sending ends determine direct current voltage regulator；52- receiving ends determine dc power adjuster；
53- receiving ends determine direct current voltage regulator；54- sending ends determine dc power adjuster；
61- sending end control model adjusters；62 receiving end control model adjusters；
71- sending end power governors；72- receiving end power governors；
8- impedance regulators；9- sending end direct current protecting devices；
10- receiving end direct current protecting devices.
Embodiment
To enable above-mentioned purpose of the present utility model, feature and advantage more obvious understandable, below in conjunction with this practicality
Accompanying drawing in new embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described.Obviously, institute
The embodiment of description is only the utility model part of the embodiment, rather than whole embodiments.Based in the utility model
Embodiment, all other implementation that those of ordinary skill in the art are obtained on the premise of creative work is not made
Example, belong to the scope of the utility model protection.
A kind of multiterminal element test system is present embodiments provided, the multiterminal element test system includes multi-terminal HVDC transmission
The adjustment unit of unit and the operational factor for adjusting multi-terminal HVDC transmission unit.As shown in figure 1, multi-terminal HVDC transmission list
Member specifically includes sending end equivalent power supply 1, sending end VSC types current conversion station 2, i receiving end VSC types current conversion station 3 and i receiving end equivalent power supply
4。
Wherein, the input of sending end VSC types current conversion station 2 is connected with sending end equivalent power supply 1, sending end VSC types current conversion station 2 it is defeated
Go out end with the input of the 1st receiving end VSC types current conversion station 3 to be connected, the input and i-th -1 of i-th of receiving end VSC types current conversion station 3
The output end of individual receiving end VSC types current conversion station 3 is connected, the output end of i receiving end VSC types current conversion station 3 also with i receiving end equivalent power supply
4 correspond connected, i >=2.Adjustment unit and sending end VSC types current conversion station 2 and/or at least one phase of receiving end VSC types current conversion station 3
Even.
In the multiterminal element test system that the present embodiment is provided, multi-terminal HVDC transmission unit is specifically included for realizing
Sending end equivalent power supply 1, sending end VSC types current conversion station 2, i receiving end VSC types current conversion station 3 and the i receiving end equivalent power supply of direct current transportation
4, adjustment unit is connected with sending end VSC types current conversion station 2 and/or at least one receiving end VSC types current conversion station 3, and this makes it possible to utilize
Adjustment unit is by adjusting the operational factor of multi-terminal HVDC transmission unit, so as to test multi-terminal HVDC transmission unit in different operations
Characteristic under parameter, and then realize and deep analysis and research are carried out to multi-terminal HVDC transmission unit.
Referring again to Fig. 1, adjustment unit specifically may include that sending end determines direct current voltage regulator 51 and i receiving end determines direct current
Power governor 52.
Wherein, sending end is determined direct current voltage regulator 51 and is connected with sending end VSC types current conversion station 2, and sending end determines DC voltage regulation
Device 51 is used for the DC voltage for adjusting sending end VSC types current conversion station 2.I receiving end determine dc power adjuster 52 respectively with i receiving end
VSC types current conversion station 3, which corresponds, to be connected, and receiving end determines dc power adjuster 52 and is used to adjust corresponding receiving end VSC types current conversion station 3
Dc power.
When adjustment unit includes sending end direct current voltage regulator 51 and i receiving end determines dc power adjuster 52, pass through
The DC voltage of sending end VSC types current conversion station 2 is adjusted, can test multi-terminal HVDC transmission unit has in sending end VSC types current conversion station 2
Steady-state response characteristic and transient response characteristic under different DC voltages.
As shown in Fig. 2 adjustment unit specifically may include that receiving end determines direct current voltage regulator 53, sending end determines dc power regulation
Device 54 and i-1 receiving end determine dc power adjuster 52.
Wherein, receiving end is determined direct current voltage regulator 53 and is connected with n-th of receiving end VSC types current conversion station 3, and receiving end determines DC voltage
Adjuster 53 is used for the DC voltage for adjusting n-th of receiving end VSC types current conversion station 3, n=1~i.Sending end determines dc power adjuster
54 are connected with sending end VSC types current conversion station 2, and sending end determines the direct current that dc power adjuster 54 is used to adjust sending end VSC types current conversion station 2
Power.I-1 receiving end determines dc power adjuster 52 with removing n-th of receiving end VSC type current conversion station in i receiving end VSC type current conversion station
Outer other receiving end VSC types current conversion stations 3, which correspond, to be connected, and it is coupled for adjusting that receiving end determines dc power adjuster 52
The dc power of receiving end VSC types current conversion station 3.
When adjustment unit determines direct current voltage regulator 53 including receiving end, sending end determines dc power adjuster 54 and i-1 by
When dc power adjuster 52 is determined at end, by adjusting the DC voltage of n-th of receiving end VSC types current conversion station 3, it is straight multiterminal can be tested
Flow steady-state response characteristic and transient response characteristic of the power transmission unit in the case where receiving end VSC types current conversion station 3 has different DC voltages.
As shown in figure 3, specifically, adjustment unit may include sending end control model adjuster 61 and/or at least one receiving end
Control model adjuster 62.
Wherein, when adjustment unit includes sending end control model adjuster 61, sending end control model adjuster 61 and sending end
VSC types current conversion station 2 is connected, and sending end control model adjuster 61 is used for the control model for adjusting sending end VSC types current conversion station 2.Work as tune
Section unit is when including at least one receiving end control model adjuster 62, at least one receiving end control model adjuster 62 respectively with extremely
A few receiving end VSC types current conversion station 3, which corresponds, to be connected, and receiving end control model adjuster 62 is used to adjust coupled receiving end
The control model of VSC types current conversion station 3.
When adjustment unit includes control sending end control model adjuster 61, by the control for adjusting sending end VSC types current conversion station 2
Molding formula, steady-state response of the multi-terminal HVDC transmission unit in the case where sending end VSC types current conversion station 2 has different control models can be tested
Characteristic and transient response characteristic.When adjustment unit includes at least one receiving end control model adjuster 62, by adjusting receiving end
The control model of VSC types current conversion station 3, can test multi-terminal HVDC transmission unit has different controls in receiving end VSC types current conversion station 3
Steady-state response characteristic and transient response characteristic under pattern.
As shown in figure 4, adjustment unit may include sending end power governor 71 and receiving end power governor 72, or, such as Fig. 5
Shown, adjustment unit may include two receiving end power governors 72.
When adjustment unit includes sending end power governor 71 and receiving end power governor 72, sending end power governor 71 with
Sending end VSC types current conversion station 2 is connected, and sending end power governor 71 is used for the transmission power value for adjusting sending end VSC types current conversion station 2.By
End power governor 72 is connected with the 1st receiving end VSC types current conversion station 3, and receiving end power governor 72 is used to adjust the 1st receiving end
The transmission power value of VSC types current conversion station 3.
When adjustment unit includes two receiving end power governors 72, first receiving end power governor 72 and the i-th -1
Receiving end VSC types current conversion station 3 is connected, and first receiving end power governor 72 is used for the i-th -1 receiving end VSC types current conversion station 3 of adjustment
Transmission power value.Second receiving end power governor 72 is connected with i-th of receiving end VSC types current conversion station 3, and second receiving end power is adjusted
Save the transmission power value that device 72 is used to adjust i-th of receiving end VSC types current conversion station 3；Wherein, i >=2.
When adjustment unit includes sending end power governor 71 and receiving end power governor 72, by adjusting sending end VSC types
The transmission power value of current conversion station 2 and the 1st receiving end VSC types current conversion station 3, can test multi-terminal HVDC transmission unit in different work(
Steady-state characteristic under rate transportation horizontal.Likewise, when adjustment unit includes two receiving end power governors 72, pass through adjustment the
The transmission power value of i-1 receiving end VSC types current conversion station 3 and i-th of receiving end VSC types current conversion station 3, it is defeated can also to test multiterminal element
Steady-state characteristic of the electric unit under different power transportation horizontals.
In the multiterminal element test system that the present embodiment is provided, sending end equivalent power supply 1 and sending end VSC types current conversion station 2
Between be connected by alternating current circuit, pass through DC line between sending end VSC types current conversion station 2 and the 1st receiving end VSC types current conversion station 3
Be connected, be connected between i-th of receiving end VSC types current conversion station 3 and the i-th -1 receiving end VSC types current conversion station 3 by DC line, respectively by
It is connected between end VSC types current conversion station 3 and corresponding receiving end equivalent power supply 4 by alternating current circuit.
As shown in fig. 6, adjustment unit may also include at least one impedance regulator 8, impedance regulator 8 and the equivalent electricity of sending end
Alternating current circuit between source 1 and sending end VSC types current conversion station 2 is connected, and/or, impedance regulator 8 and receiving end VSC types current conversion station 3 with
Alternating current circuit between corresponding receiving end equivalent power supply 4 is connected, and impedance regulator 8 is used to adjust coupled alternating current circuit
Impedance value.
When adjustment unit includes impedance regulator 8, by adjusting the impedance value of alternating current circuit, multiterminal element can be tested
Transient response characteristic of the power transmission unit under different exchange degree of strength.
As shown in fig. 7, the multiterminal element test system that the present embodiment is provided also includes sending end direct current protecting device 9 and i
Individual receiving end direct current protecting device 10.
Sending end direct current protecting device 9 is connected with sending end VSC types current conversion station 2, and sending end direct current protecting device 9 is used for sending end
VSC types current conversion station 2 carries out latch-up protection.I receiving end direct current protecting device 10 respectively with a pair of i receiving end VSC types current conversion station 3 one
It should be connected, receiving end direct current protecting device 10 is used to carry out latch-up protection to corresponding receiving end VSC types current conversion station 3.
, can be with when multiterminal element test system includes sending end direct current protecting device 9 and i receiving end direct current protecting device 10
Whether test sending end direct current protecting device 9 performs correct latch-up protection operation, and test to sending end VSC types current conversion station 2
Whether receiving end direct current protecting device 10 performs correct latch-up protection operation to receiving end VSC types current conversion station 3.
It should be noted that above-mentioned sending end equivalent power supply 1, sending end VSC types current conversion station 2, receiving end VSC types current conversion station 3, receiving end
Equivalent power supply 4, sending end determine direct current voltage regulator 51, receiving end determines dc power adjuster 52, receiving end determines direct current voltage regulator
53rd, sending end determines dc power adjuster 54, sending end control model adjuster 61, receiving end control model adjuster 62, sending end power
Adjuster 71, receiving end power governor 72, impedance regulator 8, sending end direct current protecting device 9 and the institute of receiving end direct current protecting device 10
The function of realization is existing sending end equivalent power supply 1, sending end VSC types current conversion station 2, receiving end VSC types current conversion station 3, receiving end equivalence
Power supply 4, sending end determine direct current voltage regulator 51, receiving end determines dc power adjuster 52, receiving end determines direct current voltage regulator 53, send
Determine dc power adjuster 54, sending end control model adjuster 61, receiving end control model adjuster 62, sending end power governor in end
71st, achieved by receiving end power governor 72, impedance regulator 8, sending end direct current protecting device 9 and receiving end direct current protecting device 10
Function, it is of the present utility model to the improvement is that the annexation improved between above-mentioned each structure, and connected using which kind of mode
Connect, and those skilled in the art can expect according to existing knowledge.
Specific embodiment of the present utility model is the foregoing is only, but the scope of protection of the utility model is not limited to
This, any one skilled in the art is in the technical scope that the utility model discloses, the change that can readily occur in
Or replace, it should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with the power
The protection domain that profit requires is defined.
Claims (8)
1. a kind of multiterminal element test system, it is characterised in that the multiterminal element test system includes multi-terminal HVDC transmission list
The adjustment unit of member and the operational factor for adjusting the multi-terminal HVDC transmission unit；
The multi-terminal HVDC transmission unit include sending end equivalent power supply, sending end VSC types current conversion station, i receiving end VSC types current conversion station and
I receiving end equivalent power supply；Wherein, the input of the sending end VSC type current conversion stations is connected with the sending end equivalent power supply, described to send
The output end of end VSC type current conversion stations is connected with the input of the 1st receiving end VSC type current conversion station, i-th of receiving end VSC type current conversion station
Input be connected with the output end of the i-th -1 receiving end VSC type current conversion station, the output end of i receiving end VSC type current conversion station also with i
Individual receiving end equivalent power supply, which corresponds, to be connected, i >=2；
The adjustment unit is connected with the sending end VSC types current conversion station and/or at least one receiving end VSC type current conversion stations.
2. multiterminal element test system according to claim 1, it is characterised in that it is surely straight that the adjustment unit includes sending end
Current-voltage regulator and i receiving end determine dc power adjuster；
Wherein, the sending end is determined direct current voltage regulator and is connected with the sending end VSC type current conversion stations, and the sending end determines DC voltage
Adjuster is used for the DC voltage for adjusting the sending end VSC type current conversion stations；
The i receiving ends are determined dc power adjuster and are connected respectively with the i receiving end VSC types current conversion stations one-to-one corresponding, described
Receiving end determines the dc power that dc power adjuster is used to adjust corresponding receiving end VSC type current conversion stations.
3. multiterminal element test system according to claim 1, it is characterised in that it is surely straight that the adjustment unit includes receiving end
Current-voltage regulator, sending end determine dc power adjuster and i-1 receiving end determines dc power adjuster；
Wherein, the receiving end is determined direct current voltage regulator and is connected with n-th of receiving end VSC type current conversion station, and the receiving end determines direct current
Adjuster is pressed to be used for the DC voltage for adjusting n-th of receiving end VSC type current conversion station, n=1~i；
The sending end is determined dc power adjuster and is connected with the sending end VSC type current conversion stations, and the sending end determines dc power regulation
Device is used for the dc power for adjusting the sending end VSC type current conversion stations；
The i-1 receiving ends determine dc power adjuster respectively with removing n-th of receiving end VSC in the i receiving end VSC type current conversion stations
Other receiving end VSC types current conversion stations outside type current conversion station, which correspond, to be connected, and the receiving end determines dc power adjuster and is used to adjust
The dc power of corresponding receiving end VSC type current conversion stations.
4. multiterminal element test system according to claim 1, it is characterised in that the adjustment unit controls including sending end
Mode regulators and/or at least one receiving end control model adjuster；
Wherein, the sending end control model adjuster is connected with the sending end VSC type current conversion stations, the sending end control model regulation
Device is used for the control model for adjusting the sending end VSC type current conversion stations；
At least one receiving end control model adjuster corresponds phase with least one receiving end VSC types current conversion station respectively
Even, the receiving end control model adjuster is used for the control model for adjusting corresponding receiving end VSC type current conversion stations.
5. multiterminal element test system according to claim 1, it is characterised in that
The adjustment unit includes sending end power governor and receiving end power governor；Wherein, the sending end power governor with
The sending end VSC type current conversion stations are connected, and the sending end power governor is used for the conveying work(for adjusting the sending end VSC type current conversion stations
Rate value；The receiving end power governor is connected with the 1st receiving end VSC type current conversion station, and the receiving end power governor is used to adjust
The transmission power value of 1st receiving end VSC type current conversion station；
Or, the adjustment unit includes two receiving end power governors；Wherein, the 1st receiving end power governor and described i-th -1
Individual receiving end VSC type current conversion stations are connected, and the 1st receiving end power governor is used to adjust the i-th -1 receiving end VSC type changes of current
The transmission power value stood；2nd receiving end power governor is connected with i-th of receiving end VSC type current conversion stations, described 2nd by
Power governor is held to be used for the transmission power value for adjusting i-th of receiving end VSC type current conversion station.
6. multiterminal element test system according to claim 1, it is characterised in that the sending end equivalent power supply is sent with described
It is connected between the VSC type current conversion stations of end by alternating current circuit, the sending end VSC types current conversion station and the 1st receiving end VSC type changes of current
It is connected between standing by DC line, is led between i-th of receiving end VSC types current conversion station and the i-th -1 receiving end VSC type current conversion station
Cross DC line to be connected, be connected between each receiving end VSC types current conversion station and corresponding receiving end equivalent power supply by alternating current circuit.
7. multiterminal element test system according to claim 6, it is characterised in that the adjustment unit includes at least one
AC line between impedance regulator, the impedance regulator and the sending end equivalent power supply and the sending end VSC type current conversion stations
Road is connected, and/or, the friendship between the impedance regulator and the receiving end VSC types current conversion station and corresponding receiving end equivalent power supply
Flow Line is connected, and the impedance regulator is used for the impedance value for adjusting coupled alternating current circuit.
8. multiterminal element test system according to claim 1, it is characterised in that the multiterminal element test system is also wrapped
Include sending end direct current protecting device and i receiving end direct current protecting device；
The sending end direct current protecting device is connected with the sending end VSC type current conversion stations, the sending end direct current protecting device be used for pair
The sending end VSC types current conversion station carries out latch-up protection；
The i receiving end direct current protecting devices correspond with the i receiving end VSC types current conversion stations respectively to be connected, the receiving end
Direct current protecting device is used to carry out latch-up protection to corresponding receiving end VSC types current conversion station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720411498.XU CN206920526U (en) | 2017-04-18 | 2017-04-18 | Multi-terminal direct current test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720411498.XU CN206920526U (en) | 2017-04-18 | 2017-04-18 | Multi-terminal direct current test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920526U true CN206920526U (en) | 2018-01-23 |
Family
ID=61305843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720411498.XU Active CN206920526U (en) | 2017-04-18 | 2017-04-18 | Multi-terminal direct current test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051471A (en) * | 2020-09-14 | 2020-12-08 | 南方电网科学研究院有限责任公司 | Method, system and equipment for testing direct-current external characteristics of hybrid multi-terminal power transmission system |
-
2017
- 2017-04-18 CN CN201720411498.XU patent/CN206920526U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051471A (en) * | 2020-09-14 | 2020-12-08 | 南方电网科学研究院有限责任公司 | Method, system and equipment for testing direct-current external characteristics of hybrid multi-terminal power transmission system |
| CN112051471B (en) * | 2020-09-14 | 2021-11-26 | 南方电网科学研究院有限责任公司 | Method, system and equipment for testing direct-current external characteristics of hybrid multi-terminal power transmission system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Coordinated control of distributed energy storage system with tap changer transformers for voltage rise mitigation under high photovoltaic penetration | |
| CN106849164B (en) | A kind of isolated island micro-capacitance sensor unifies SOC balance control method | |
| US10421370B2 (en) | Coordinated control method for a distribution network with DER and EV and control system thereof | |
| KR20160081067A (en) | Low Voltage DC Distribution System and Distribution Method thereof | |
| JP6549190B2 (en) | Power compensation device and control method thereof | |
| CN105119316A (en) | VSC-MTDC (Voltage source converter-multi-terminal high voltage direct current) voltage control method for offshore wind farm integration | |
| CN104333036B (en) | Multi-source coordination control system | |
| CN103825278A (en) | Power quality control | |
| US11146068B2 (en) | Method and apparatus for minimizing circulating currents in microgrids | |
| CN104362650A (en) | Electric power system reactive power optimization method considering cost factor | |
| US10097001B2 (en) | Power control system for energy storage devices, and control device and control method thereof | |
| KR20160001883A (en) | Microgrid system, control apparatus for the system and control method for the system | |
| CN105262077A (en) | Control method for optimizing power flow of direct-current power distribution network | |
| JP6693595B1 (en) | Grid interconnection device | |
| CN105207194A (en) | Determination method for installation position of DC power flow controller in multi-terminal flexible DC power grid | |
| CN206920526U (en) | Multi-terminal direct current test system | |
| CN107769189B (en) | DC micro-grid structure | |
| Jianfang et al. | Multi-level control of grid-tied DC microgrids | |
| CN107666157B (en) | AC/DC series-parallel power grid | |
| Neal | The use of AMI meters and solar PV inverters in an advanced Volt/VAr control system on a distribution circuit | |
| CN209055600U (en) | Charging pile energy-saving aging device and charging system | |
| CN107193312B (en) | A kind of list battery core simulator | |
| CN206922436U (en) | Multi-terminal direct current test system | |
| CN105977955B (en) | A kind of direct-current grid DC voltage fluctuation is synchronous to eliminate system and method | |
| CN107807334B (en) | Test method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210609 Address after: 510700 3rd, 4th and 5th floors of building J1 and 3rd floor of building J3, No.11 Kexiang Road, Science City, Luogang District, Guangzhou City, Guangdong Province Patentee after: China South Power Grid International Co.,Ltd. Address before: 510080 West Tower 13-20 Floor, Shui Jungang 6 and 8 Dongfeng East Road, Yuexiu District, Guangzhou City, Guangdong Province Patentee before: China South Power Grid International Co.,Ltd. Patentee before: POWER GRID TECHNOLOGY RESEARCH CENTER. CHINA SOUTHERN POWER GRID |
|
| TR01 | Transfer of patent right |