CN103475031A - Control system of small wind solar storage hybrid generating group based on wireless sensor network - Google Patents
Control system of small wind solar storage hybrid generating group based on wireless sensor network Download PDFInfo
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- CN103475031A CN103475031A CN2013104660063A CN201310466006A CN103475031A CN 103475031 A CN103475031 A CN 103475031A CN 2013104660063 A CN2013104660063 A CN 2013104660063A CN 201310466006 A CN201310466006 A CN 201310466006A CN 103475031 A CN103475031 A CN 103475031A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A control system of a small wind solar storage hybrid generating group based on a wireless sensor network is characterized in that disturbed measurement and control RTUs are utilized to monitor the running state of the wind solar storage hybrid generating group in real time and to achieve wireless networking, and wind solar storage sub system monitoring points are formed into a network; network center nodes of the disturbed measurement and control RTUs are communicated with a monitoring center in a GPRS mode, and then a distributed monitoring system based on the disturbed measurement and control RTUs and GPRS teletransmission communication is constructed, and the system is integrated by the multiple disturbed measurement and control RTUs. According to the control system, electric energy jointly generated by a wind power system and a photovoltaic battery assembly is stored to a storage battery pack, a controller monitors and controls the working state of a winder generator, the working state of the photovoltaic battery assembly and the working sate of the storage battery pack in real time according to the strength of light and wind and the change of loads, and therefore the system can safely and reliably work.
Description
Technical field
The scene that the present invention is based on wireless sensor network holds complemental power-generation group's self-control system, belongs to the comprehensive application system of technology of Internet of things, electrical technology, control technology.
Background technology
Clearly propose to want Efforts To Develop " the regenerative resource low-coat scale melts to send out and utilizes " in National Program for Medium-to Long-term Scientific and Technological Development.In order to solve the contradiction between electric power system and distributed power source, integrate the advantage of distributed power generation, giving full play to distributed power source is the economic benefit that tortoise power system and user bring, micro-electric power network technique earns widespread respect.Micro-grid system be a kind of by the load and micro power jointly form. system, it can provide electric energy and heat simultaneously; The power supply of micro-grid system inside mainly is responsible for the conversion of energy by power electronic device, and essential control is provided; Micro-grid system shows as single controlled cell with respect to the large electrical network in outside, and can meet the user to requirements such as the quality of power supply and power supply safeties simultaneously.Be expected to improve power supply reliability and economic benefit by the complementary microgrid scheme of wind/light/energy storage.
The wind turbine generator power output changes along with wind speed and fluctuates, power output that can not the Accurate Prediction wind generator system.Complementary micro-grid system appropriate design and coupling can address this problem, and in system, many employing scene hold complementary power generation system now, less employing stand-by power supply etc., and adaptability is bad.Complemental power-generation group micro-grid system generally is applied in the remote districts that large electrical network does not cover simultaneously, and running time is longer, distributes wide, and traditional monitoring technique can not be fully applicable.Should adopt the Unattended remote monitoring technique; station equipment and Microcomputer Protection are carried out to unified monitoring, management and control; so wireless sensor network monitoring can be in real time, effectively information exchange, information sharing, Optimum Operation, make stable the continuing of system safety move reliably.
Typical central control system can not solve the control problem that scene holds the complemental power-generation group, particularly work as in the situations such as electrical network or distributed power source break down and cause microgrid voltage, when frequencies etc. occur that larger fluctuation surpasses allowed band, overall situation real time information energy flow optimization computation is slower, and can face the faults such as interruption of communication control net, therefore adopt the real-time autonomous distributed power source of ZigBee technology of wireless sensing network to control, can be according to overall static information and local information, to voltage, frequencies etc. surpass the allowable fluctuation range situation and carry out instant adjusting, form reliable distributed monitoring system.
Summary of the invention
The purpose of this invention is to provide a kind of scene based on wireless sensor network and hold complemental power-generation group's control system, utilize the ZigBee technology of wireless sensing network to monitor in real time the operation conditions that scene holds the complemental power-generation group, realize wireless networking, each scene is held to the subsystem monitoring point and form network, communicate by letter with Surveillance center in the GPRS mode by ZigBee network center node, thereby build the distributed monitoring system that a remote transmission based on ZigBee and GPRS is communicated by letter.
For achieving the above object, the invention provides a kind of control system of holding the complemental power-generation group based on the small-sized scene of wireless sensor network, it is characterized in that: utilize distribution observing and controlling RTU unit to monitor in real time the operation conditions that scene holds the complemental power-generation group, utilize distribution observing and controlling RTU unit to realize wireless networking, each scene is held to the subsystem monitoring point and form network, by distribution observing and controlling RTU unit networks Centroid, in the GPRS mode, with Surveillance center, communicate by letter, thereby build the distributed monitoring system that a remote transmission based on distribution observing and controlling RTU unit and GPRS is communicated by letter, system is integrated by a plurality of distribution observing and controlling RTU unit of generating group, the observing and controlling RTU unit that wherein distributes comprises:
Data collector module: gather the data that scene holds each generator unit in the complemental power-generation group, according to different semaphore requests, by the sensor unit parts of preposition response, obtain the electric signal of generator unit transducer;
Zigbee wireless communication module: the electric signal of data collector module is converted into to the Zigbee wireless signal;
Zigbee wireless communication relay module: Zigbee radio communication mold blocks of data is processed, solved the problem of signal attenuation, send into data concentrator module;
Data concentrator module: the Zigbee wireless communication data that scene is held to complemental power-generation group's multiplex is focused on, and according to the data channel numbering, carries out;
GPRS communication module: receive the data of data concentrator module, carry out the modulation of GPRS signal of communication, send to other distribution observing and controlling RTU unit, receive the data of other unit simultaneously;
Distributed intelligence control unit: according to the local information transmitted and voltage, the frequency signal of transmission, according to the rule of setting, carry out instant adjusting.
The power storage that wind power system of the present invention and photovoltaic cell component will send jointly is in batteries, controller carries out real-time inspection and control according to the power of illumination, the size of wind-force and the variation of load to the operating state of wind-driven generator, photovoltaic cell component, batteries, guarantees system safety and work reliably.
The accompanying drawing explanation
Fig. 1 is structured flowchart of the present invention;
Fig. 2 is distribution observing and controlling RTU cellular construction block diagram.
Embodiment
As Fig. 1, shown in 2, the invention provides a kind of scene based on wireless sensor network and hold complemental power-generation group's control system, utilize distribution observing and controlling RTU unit to monitor in real time the operation conditions that scene holds the complemental power-generation group, build a distributed monitoring system that the remote transmission based on distribution observing and controlling RTU unit and GPRS is communicated by letter, wherein: the distributed intelligence control unit, data collector module, the Zigbee wireless communication module, Zigbee repeater routing module and data concentrator module, the GPRS communication module has formed the distribution observing and controlling RTU unit that is arranged in each subsystem in the generating group.The GPRS communication connection that dotted line is a plurality of distribution observing and controlling RTU unit.
(1) data collector module: gather the data that scene holds each generator unit in the complemental power-generation group, according to different semaphore requests, by the sensor unit parts of preposition response, obtain the electric signal of generator unit transducer;
(2) Zigbee wireless communication module: the electric signal of data collector module is converted into to the Zigbee wireless signal;
(3) Zigbee repeater routing module: the radio communication mold blocks of data is processed, solved the problem of signal attenuation, send into data concentrator module;
(4) data concentrator module: the Zigbee wireless communication data that scene is held to complemental power-generation group's multiplex is focused on, and according to the data channel numbering, carries out;
(5) GPRS communication module: receive the data of data concentrator module, carry out the modulation of GPRS signal of communication, send to other distribution observing and controlling RTU unit, receive the data of other unit simultaneously;
(6) distributed intelligence control unit: according to the local information transmitted and voltage, the frequency signal of transmission, according to the rule of setting, carry out instant adjusting.
During work, the power storage that wind power system and photovoltaic cell component will send jointly is in batteries, controller carries out real-time inspection and control according to the power of illumination, the size of wind-force and the variation of load to the operating state of wind-driven generator, photovoltaic cell component, batteries, guarantees system safety and work reliably.The self-control system that scene based on wireless sensor network holds the complemental power-generation group gathers the data of each generator unit and sends in data collector module, the electric signal of data collector module is converted into to the Zigbee wireless signal, send in the Zigbee wireless communication module, the radio communication mold blocks of data is processed, solve the problem of signal attenuation, send in data concentrator module, the Zigbee wireless communication data is focused on, according to the data channel numbering, carry out, send in the GPRS communication module, receive the data of data concentrator module, carry out the modulation of GPRS signal of communication, send to other distribution observing and controlling RTU unit, the data that simultaneously receive other unit are sent into the distributed intelligence control unit, according to the local information transmitted and the voltage of transmission, the signals such as frequency, according to the rule of setting, carry out instant adjusting.The distributed intelligence control unit is according to the power of illumination, the size of wind-force and the variation of load, constantly the operating state of storage battery is switched and regulated by the distributed intelligence control unit, make its alternate run under the various working such as charging, electric discharge or floating charge, realize the automatic equalization charging, thereby guarantee the stability of wind-force, the work of photovoltaic complementary power generation system; Prevent overcharge of a battery and overdischarge.By loading inverter, direct current is transformed to alternating current and supplies with the AC load use; Perhaps, when load voltage is consistent with battery tension, directly from controller output end, draw for DC load.
Claims (1)
1. a control system of holding the complemental power-generation group based on the small-sized scene of wireless sensor network, it is characterized in that: utilize distribution observing and controlling RTU unit to monitor in real time the operation conditions that scene holds the complemental power-generation group, utilize distribution observing and controlling RTU unit to realize wireless networking, each scene is held to the subsystem monitoring point and form network, by distribution observing and controlling RTU unit networks Centroid, in the GPRS mode, with Surveillance center, communicate by letter, thereby build the distributed monitoring system that a remote transmission based on distribution observing and controlling RTU unit and GPRS is communicated by letter, system is integrated by a plurality of distribution observing and controlling RTU unit of generating group, the observing and controlling RTU unit that wherein distributes comprises:
Data collector module: gather the data that scene holds each generator unit in the complemental power-generation group, according to different semaphore requests, by the sensor unit parts of preposition response, obtain the electric signal of generator unit transducer;
Zigbee wireless communication module: the electric signal of data collector module is converted into to the Zigbee wireless signal;
Zigbee wireless communication relay module: Zigbee radio communication mold blocks of data is processed, solved the problem of signal attenuation, send into data concentrator module;
Data concentrator module: the Zigbee wireless communication data that scene is held to complemental power-generation group's multiplex is focused on, and according to the data channel numbering, carries out;
GPRS communication module: receive the data of data concentrator module, carry out the modulation of GPRS signal of communication, send to other distribution observing and controlling RTU unit, receive the data of other unit simultaneously;
Distributed intelligence control unit: according to the local information transmitted and voltage, the frequency signal of transmission, according to the rule of setting, carry out instant adjusting.
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| CN2013104660063A CN103475031A (en) | 2013-10-09 | 2013-10-09 | Control system of small wind solar storage hybrid generating group based on wireless sensor network |
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| CN2013104660063A CN103475031A (en) | 2013-10-09 | 2013-10-09 | Control system of small wind solar storage hybrid generating group based on wireless sensor network |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904684A (en) * | 2014-03-28 | 2014-07-02 | 国网节能服务有限公司 | Micro-grid control system and a new energy recycling system |
| CN104092303A (en) * | 2014-07-03 | 2014-10-08 | 内蒙古大学 | Energy management and coordination control system and method for wind and solar energy distributed power generation independent micro grid |
| CN104283494A (en) * | 2014-09-22 | 2015-01-14 | 国家电网公司 | Small wind-light-stored energy supplementary power generation cluster autonomous control system based on wireless sensor network |
| CN108770078A (en) * | 2018-04-27 | 2018-11-06 | 上海太阳能科技有限公司 | Photovoltaic plant multi-stage data monitors and composite information Transmission system |
| CN111404800A (en) * | 2020-03-25 | 2020-07-10 | 江苏中信博新能源科技股份有限公司 | Hybrid networking communication system and method |
| CN115498771A (en) * | 2022-10-13 | 2022-12-20 | 国网山东省电力公司聊城供电公司 | Observable, measurable and controllable system of distributed photovoltaic system |
-
2013
- 2013-10-09 CN CN2013104660063A patent/CN103475031A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904684A (en) * | 2014-03-28 | 2014-07-02 | 国网节能服务有限公司 | Micro-grid control system and a new energy recycling system |
| CN104092303A (en) * | 2014-07-03 | 2014-10-08 | 内蒙古大学 | Energy management and coordination control system and method for wind and solar energy distributed power generation independent micro grid |
| CN104092303B (en) * | 2014-07-03 | 2016-09-14 | 内蒙古大学 | Scene distributed power generation independent micro-grid energy management coordinated control system and method |
| CN104283494A (en) * | 2014-09-22 | 2015-01-14 | 国家电网公司 | Small wind-light-stored energy supplementary power generation cluster autonomous control system based on wireless sensor network |
| CN108770078A (en) * | 2018-04-27 | 2018-11-06 | 上海太阳能科技有限公司 | Photovoltaic plant multi-stage data monitors and composite information Transmission system |
| CN111404800A (en) * | 2020-03-25 | 2020-07-10 | 江苏中信博新能源科技股份有限公司 | Hybrid networking communication system and method |
| CN115498771A (en) * | 2022-10-13 | 2022-12-20 | 国网山东省电力公司聊城供电公司 | Observable, measurable and controllable system of distributed photovoltaic system |
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Application publication date: 20131225 |