CN105099215A - Aircraft ground miniaturization power supply suitable for multiple power supply modes - Google Patents
Aircraft ground miniaturization power supply suitable for multiple power supply modes Download PDFInfo
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Abstract
The invention provides an aircraft ground miniaturization power supply suitable for multiple power supply modes. The aircraft ground miniaturization power supply comprises a three-phase intermediate-frequency static variable power supply circuit, a DC static conversion power supply circuit, a power network voltage sampling circuit, a voltage interval judgment circuit, a serial and parallel connection control circuit and a primary-side winding serial and parallel connection switching circuit. The aircraft ground miniaturization power supply capable of separately providing an AC power supply or a DC power supply and also capable of simultaneously providing the AC power supply and the DC power supply completely covers active-service aircrafts, serves several purposes, saves investment and is convenient to use. Commercial AC power supplies of various countries around the world or AC generators can be adopted to provide power, and self power supply of the active-service aircrafts at home and abroad can be met; and a battery pack can also be adopted to provide power, and field or military applications are convenient. A circuit topological structure is simple, the whole body of equipment is miniaturized, vehicle type housing with rollers is designed, on-board engine-driven transferring is convenient, and the aircraft ground miniaturization power supply has great application value in military.
Description
Technical field
The present invention relates to aero-ground power field, specifically a kind of aircraft floor compact power supply adapting to multiple supply power mode.
Background technology
In aircraft industry, various ground handling equipment will provide electric power and compressed air for aircraft.Aircraft can be powered by using aircraft generator, but, due to can consume fuel with aircraft generator generating, and the more important thing is the safety considering ground staff, thus general aircraft ground whenever startup all forbids aircraft generator.
Like this, aircraft needs outside to provide power supply in ground energising, maintenance or when starting, and the equipment such as radar, guided missile also needs to provide ground power supply guarantee, and its power supply used is referred to as aero-ground power (groundpowerunit), is called for short GPU.
But not all aircraft is all designed to the power supply source with identical characteristics.Such as, some aircraft utilization AC power, and have some to use DC power supply, also have some to use AC power and DC power supply simultaneously.Thus, Ground static power source is generally divided into AC static power supply and DC static power supply.
At present, most aircarrier aircraft all requires that ground provides the AC power exchanging 400Hz, 115V/200V, and the effect of AC static power supply is AC power civil power (50Hz, 380V) being transformed to 400Hz, 115V/200V; Some small-sized aircrafts such as commercial machine, fighter plane, bomber also require that ground provides the DC power supply of 28V, and the effect of DC static power supply is DC power supply civil power (50Hz, 380V) being transformed to 28V.The fighter plane of some model of China requires that ground provides 400Hz AC power and 28V DC power supply simultaneously.
In addition, even if when two airplanes uses have the GPU of identical characteristics, two airplanes also can have characteristic different from each other.Therefore, have no option at present, can only design, manufacture a kind of ground power supply meeting every airplane supply standard that may run into.
The power supply source of GPU is divided into two classes usually: a class is obtained by diesel-oil electric generator wagon generating, and a class is powered by the electrical source of power being arranged on airplane parking area.Along with in modern war, infrared acquisition, guided weapon performance constantly improve, and the battlefield living environment of military equipment is increasingly severe.What the ground targets such as missile attack fighting machine were mainly used is infrared guidance technology, so there is the infrared stealth performance of the supply vehicle of endogenous pyrogen to become extremely important.With backup battery as power supply source, replacement diesel-oil electric generator wagon, endogenous pyrogen can be removed, battlefield survival rate can be improved.Backup battery group and quiet change GPU are carried out airborne motor-driven transition, and fighter plane, in the local landing on non-airport, militarily also has high using value.
Summary of the invention
The present invention proposes a kind of aircraft floor compact power supply adapting to multiple supply power mode, to solve the problem that different machine in prior art needs to be equipped with different power-supply devices.
Technical scheme of the present invention is achieved in that
Adapt to an aircraft floor compact power supply for multiple supply power mode, comprise three-phase mid-frequency quiet variable power source circuit, direct-current static variable power source circuit, line voltage sample circuit, voltage range decision circuitry, connection in series-parallel control circuit and former limit winding serial and parallel switching circuit;
The quiet variable power source circuit of described three-phase mid-frequency comprises: rectifier bridge DB1, for the three-phase alternating current of access is converted to direct current; The Three-Phase Inverter be made up of three H bridge inverters; A transformer is connect after each H bridge inverter; Described rectifier bridge DB1 is connected to and exchanges input switch K1 after inductance L 1;
Described direct-current static variable power source circuit comprises: rectifier bridge DB2, for the three-phase alternating current of access is converted to direct current; A H bridge inverter; A transformer is connect after H bridge inverter; Described rectifier bridge DB2 connects and exchanges input switch K1 after inductance L 2;
The former limit of each transformer comprises two windings, and two windings of each transformer are connected with described H bridge inverter after the winding serial and parallel switching circuit of former limit;
Described line voltage sample circuit, voltage range decision circuitry are connected successively with connection in series-parallel control circuit, the collection of line voltage sample circuit access three-phase alternating current information and flow to voltage range decision circuitry, voltage range decision circuitry judges this information according to the value preset, and judged result is flowed to connection in series-parallel control circuit, connection in series-parallel control circuit controls according to this judged result the connection in series-parallel switching that former limit winding serial and parallel switching circuit realizes two windings in former limit of transformer;
The DC bus of the quiet variable power source circuit of described three-phase mid-frequency and direct-current static variable power source circuit is connected with direct current input switch K2 after inductance L 5.
Further, described former limit winding serial and parallel switching circuit realizes connection in series-parallel switching by the mode that contactor commutation circuit connects.
Further, when the information of voltage that described line voltage sample circuit collects is 200V, 208V, 220V, 230V or 240V, described former limit winding serial and parallel switching circuit switches to and makes two winding parallels;
When the information of voltage that described line voltage sample circuit collects is 380V, 400V, 410V, 440V or 460V, described former limit winding serial and parallel switching circuit switches to and makes two windings in series.
Further, anti-reverse diode is provided with between the DC bus of described direct current input switch K2 and three-phase mid-frequency quiet variable power source circuit and direct-current static variable power source circuit.
Further, the outer casing of power supply with roller is also comprised.
Beneficial effect of the present invention is:
1, provide one both can provide separately AC power or DC power supply, the alternating current-direct current Ground static power source of AC power and DC power supply can be provided again simultaneously, cover service aircraft, a tractor serves several purposes comprehensively, reduce investment outlay, easy to use.
2, multiple supply power mode: can adopt the commercial ac power source of countries in the world or adopt alternating current generator to power, can meet service aircraft oneself power supply at home and abroad; Can adopt again battery-powered, facilitate field or Military Application.
3, miniaturized: circuit topological structure is simple, Whole Equipment is miniaturized, is designed to the vehicle shell with roller, facilitates airborne motor-driven transition, militarily have high using value.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the present invention's application scenarios schematic diagram;
Fig. 2 is main circuit diagram of the present invention;
Fig. 3 is the circuit diagram of the present invention one former limit winding serial and parallel switching circuit;
Fig. 4 is Unipolar SPWM frequency multiplier type control waveform figure;
Fig. 5 is finite both ZVZCS control waveform figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1, a kind of aircraft floor compact power supply adapting to multiple supply power mode in the present embodiment, comprises three-phase mid-frequency quiet variable power source circuit, direct-current static variable power source circuit, line voltage sample circuit, voltage range decision circuitry, connection in series-parallel control circuit and former limit winding serial and parallel switching circuit;
The quiet variable power source circuit of described three-phase mid-frequency comprises: rectifier bridge DB1, for the three-phase alternating current of access is converted to direct current; The Three-Phase Inverter be made up of three H bridge inverters; A transformer is connect after each H bridge inverter; Described rectifier bridge DB1 is connected to and exchanges input switch K1 after inductance L 1;
Described direct-current static variable power source circuit comprises: rectifier bridge DB2, for the three-phase alternating current of access is converted to direct current; A H bridge inverter; A transformer is connect after H bridge inverter; Described rectifier bridge DB2 connects and exchanges input switch K1 after inductance L 2;
The former limit of each transformer comprises two windings, and two windings of each transformer are connected with described H bridge inverter after the winding serial and parallel switching circuit of former limit;
Described line voltage sample circuit, voltage range decision circuitry are connected successively with connection in series-parallel control circuit, the collection of line voltage sample circuit access three-phase alternating current information and flow to voltage range decision circuitry, voltage range decision circuitry judges this information according to the value preset, and judged result is flowed to connection in series-parallel control circuit, connection in series-parallel control circuit controls according to this judged result the connection in series-parallel switching that former limit winding serial and parallel switching circuit realizes two windings in former limit of transformer;
The DC bus of the quiet variable power source circuit of described three-phase mid-frequency and direct-current static variable power source circuit is connected with direct current input switch K2 after inductance L 5.
In the present embodiment, described former limit winding serial and parallel switching circuit realizes connection in series-parallel by the mode that contactor commutation circuit connects and switches.
In the present embodiment, when the information of voltage that described line voltage sample circuit collects is 200V, 208V, 220V, 230V or 240V, described former limit winding serial and parallel switching circuit switches to and makes two winding parallels;
When the information of voltage that described line voltage sample circuit collects is 380V, 400V, 410V, 440V or 460V, described former limit winding serial and parallel switching circuit switches to and makes two windings in series.
In the present embodiment, between the DC bus of described direct current input switch K2 and three-phase mid-frequency quiet variable power source circuit and direct-current static variable power source circuit, be provided with anti-reverse diode.
In the present embodiment, also comprise the outer casing of power supply with roller.
The mentality of designing of the present embodiment is as follows:
One, in order to both AC power or DC power supply can be provided separately, AC power and DC power supply can be provided again simultaneously, comprehensive covering service aircraft, the technical scheme adopted is: together with circuit integrated with the 28V direct-current static variable power source of complete set for 115/200V, 400HZ three-phase mid-frequency quiet variable power source circuit of complete set, and be located in the shell with roller, composition Ground power of alterating and direct current car (i.e. the aircraft floor compact power supply of the multiple supply power mode of adaptation of the present invention), can draw, removable.See the #1 dolly in Fig. 1.Two cover power supplys independently control separately, can independently use.
Two, in order to realize multiple supply power mode
Want to adapt to the alternating current of wider voltage range and frequency range and the DC power supply of battery backup, needing suitable circuit topological structure and come, is one of key technology of the present invention.
The first supply power mode, GPU can refute the three-phase alternating current electrical network connecing airport, current countries in the world, all can use all over the world.As can be seen here, to accept AC-input voltage frequency 50HZ, 60HZ or 400HZ.
The second supply power mode, to connect alternating current generator, and the voltage that general generator exports and frequency all meet standard or the 400HZ diesel oil three-phase mid-frequency generating locomotive of commercial ac power source, need not design especially this.
The third supply power mode, connects battery backup, provides power supply mainly under grid power blackout, field situation to aircraft startup or energising inspection.Backup battery group and quiet modification GPU are carried out field studies, militarily has high using value.
For the first supply power mode:
GPU can mains supply be generally the country on this aircraft airport commercial mains supply used.Voltage, the frequency table of comparisons of Global Airports three-phase alternating-current supply are as follows:
According to upper table, the line voltage of global three-phase alternating-current supply can be divided into two groups, the good low pressure group of safety and the high high pressure group of efficiency of transmission.
Low pressure group: 200V, 208V, 220V, 230V and 240V.Such as Japan: 50HZ, 200V/115Vrms.Military 400HZ/ three-phase 200V also includes low pressure group in simultaneously.
High pressure group: 380V, 400V, 410V, 440V and 460V.Such as Europe: 50HZ, 400V/230Vrms, the U.S.: 60HZ, 460V/230Vrms, China: 50HZ, 380V/220Vrms.
By the voltage value of top, can find out, although voltage range is very wide, the twice of to be high pressure group voltage the be low pressure group voltage of the rule between them.Still adopt following structure: the former limit of transformer is divided into two identical windings, for low pressure group voltage, by two former limit winding parallels; For high pressure group voltage, by two former limit windings in series, input and output voltage is mated.
The former limit winding serial and parallel switching circuit that the present embodiment adopts is referring to Fig. 3, operation principle is as follows: when accepting different AC-input voltage, line voltage sample circuit is provided with at input, line voltage is measured by actual samples, voltage range decision circuitry, according to magnitude of voltage, judges the voltage class ranges at it, and connection in series-parallel control circuit adjusts the contactor KM of former limit winding serial and parallel switching circuit, complete the self adaptation of main circuit to line voltage, make the setting of corresponding pattern.That is: the high input voltage pattern of former limit windings in series work, the high input voltage pattern of former limit winding parallel work.
And for AC-input voltage frequency 50HZ, 60HZ or 400HZ, selected Three-Phase Inverter is all applicable.
The advantage of this circuit topology is: circuit structure is simple, reliable operation.Automatically complete pattern setting, without the need to manual operation, avoid man-made failure operation.Under two kinds of mode of operations, rectifier bridge uses uncontrollable rectifier entirely, and line voltage utilance is the highest.
For the third supply power mode, battery backup.The voltage of battery backup, the type of battery backup are one of key technologies of power supply.DC bus after the battery backup input direct screening three phase rectifier of the present embodiment.Therefore the voltage of battery pack is designed to consistent with the commutating voltage of low pressure input pattern, direct current input mode can be made to implement and to become simple and economical.The commutating voltage of low pressure group between 200VDC-360VDC, therefore gets its median 280VDC, selects the maitenance-free colloid accumulator 22 of 12V to save, or selects the lithium battery group of 280VDC.Battery pack input string has heavy-duty diode, has anti-reverse defencive function, improves safety in utilization.
Battery pack is furnished with BMS (battery management system), charges, discharges, the management such as single battery voltage detection to battery pack.And battery pack and BMS are formed standby battery vehicle, and can draw, removable.See the #2 dolly in Fig. 1.
Three, miniaturized
Depend on which kind of main circuit topology the quiet variable power source circuit of three-phase mid-frequency and direct-current static variable power source circuit select.Main circuit is as Fig. 2.
First: the technical scheme of the quiet variable power source circuit of three-phase mid-frequency
Chinese patent application, publication number CN103427667A disclose " a kind of High-performance static power transformation intermediate frequency power supply ", the quiet variable power source of three-phase mid-frequency of this technology selects the mode of AC-DC-AC to complete power conversion, [0008] bar in literary composition: the bridge road of each group IGBT inverter bridge exports and is electrically connected with one group of contravariant transformer primary side respectively by after inductance L, often organizes contravariant transformer secondary end and connects an electric capacity.This kind of scheme has individual problem: the crosstalk sense of former limit and output electric capacity composition LC filter, and such implementation method makes the electric current and voltage harmonic wave on the former limit of medium frequency inverter transformer very large, and intermediate frequency transformer temperature rise is comparatively large, and noise is larger.
The 115/200V of the present embodiment, the main circuit of the quiet variable power source circuit of 400HZ three-phase mid-frequency also selects the mode of AC-DC-AC to complete power conversion, use SPWM voltage regulating mode, adopt the Three-Phase Inverter of three independent H-bridge inverter compositions, be applicable to 100% unbalanced load.
Three H bridge inverters all adopt identical SPWM control program, each H bridge all adopts Unipolar SPWM multiple-frequency modulation mode (see Fig. 4), namely hand over to cut with two frequencies, amplitude is identical, phase place is contrary triangular wave and 400HZ baseline sinusoidal wave and produce a SPWM control signal, be added in the upper brachium pontis of each H bridge respectively, make two brachium pontis output voltages be three rank SPWM impulse waveforms, and pulse frequency is the twice of triangular wave frequency.The ripple frequency of H bridge inverter output SPWM ripple is 2 times of triangular wave frequency, and the waveform harmonics content exported is reduced greatly.High carrier frequency ratio, reduces the volume of 400HZ output filter greatly.First through LC filtering again through intermediate frequency transformer isolation and amplifier.Do like this, under intermediate frequency transformer is only operated in the low-down 400HZ of harmonic content, operating noise reduces greatly.
In addition, contravariant transformer adopts Fe-based amorphous design of material, and iron core utilization is high, and iron loss is little, and volume is little.
400HZ three phase sine reference signal adopts crystal oscillator to determine direct digital synthesizers (DDS) formula sinusoidal waveform producing method frequently, and sinewave output is pure stable.Inversion Waveform Control adopts output voltage instantaneous value Waveform Control, and reaction speed is steady soon, and waveform distortion is little.
Second: the technical scheme of direct-current static variable power source circuit
Chinese patent, notification number CN202931196U disclose one " Ground DC static power supply ", and this patent is that the output of quiet for 115/200V, 400HZ three-phase mid-frequency variable power source is connect an intermediate frequency step-down isolation transformer, and rectification exports 28V direct current.Rectification is uncontrollable rectifier.Its shortcoming is that intermediate frequency transformer volume is large, heavy.Uncontrollable rectifier can not make end output carry out automatic voltage regulation in addition, cannot ensure that the high accuracy of terminal voltage exports.
American documentation literature WO2011071664A2 discloses one " GROUNDPOWERUNITFORAIRCRAFT ", and adopt high-frequency convertor technology, converter additionally uses zero voltage switching technology, makes 28V aircraft energizer have very high technical performance.
The major loop of the direct-current static variable power source circuit of the present embodiment adopts the control method (see Fig. 5) of limited double poled control scheme, coordinate the full-bridge soft-switching topology realizing the FR ZVZCS of lead and lag brachium pontis containing resonant circuit, the key of Sofe Switch is that the curtage waveform that will adopt the logic control of finite both that resonant circuit is formed meets IGBT and is operated in zero current or zero-voltage state.Use ZVZCS soft switch transducer, be more suitable for the aircraft energizer requiring reliability high, because it has the following advantages:
1, due to the on off state of zero-voltage zero-current, the switching loss of device is almost nil, and high frequency transformer adopts nano amorphous magnetic core, and high frequency iron loss is minimum in high-power applications, thus makes operating efficiency higher.
2, because low heat emission requires and IGBT runs without buffer, so the size of DC-DC converter and weight reduce further, thus high power density is obtained.
3, because power device has minimum switch stress, so the reliability of DC power supply is improved during Sofe Switch.
4, due to the resonance potential pulse of lower dv/dt, electromagnetic interference (EMI) reduces greatly.
5, because operating frequency is greater than 20KHZ, so noise is very little.
And its major defect is the increase of resonant circuit cost and the increase of circuit complexity, but for requiring the aircraft energizer of high reliability, these costs can accept.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. adapt to an aircraft floor compact power supply for multiple supply power mode, it is characterized in that: comprise three-phase mid-frequency quiet variable power source circuit, direct-current static variable power source circuit, line voltage sample circuit, voltage range decision circuitry, connection in series-parallel control circuit and former limit winding serial and parallel switching circuit;
The quiet variable power source circuit of described three-phase mid-frequency comprises: rectifier bridge DB1, for the three-phase alternating current of access is converted to direct current; The Three-Phase Inverter be made up of three H bridge inverters; A transformer is connect after each H bridge inverter; Described rectifier bridge DB1 is connected to and exchanges input switch K1 after inductance L 1;
Described direct-current static variable power source circuit comprises: rectifier bridge DB2, for the three-phase alternating current of access is converted to direct current; A H bridge inverter; A transformer is connect after H bridge inverter; Described rectifier bridge DB2 connects and exchanges input switch K1 after inductance L 2;
The former limit of each transformer comprises two windings, and two windings of each transformer are connected with described H bridge inverter after the winding serial and parallel switching circuit of former limit;
Described line voltage sample circuit, voltage range decision circuitry are connected successively with connection in series-parallel control circuit, the collection of line voltage sample circuit access three-phase alternating current information and flow to voltage range decision circuitry, voltage range decision circuitry judges this information according to the value preset, and judged result is flowed to connection in series-parallel control circuit, connection in series-parallel control circuit controls according to this judged result the connection in series-parallel switching that former limit winding serial and parallel switching circuit realizes two windings in former limit of transformer;
The DC bus of the quiet variable power source circuit of described three-phase mid-frequency and direct-current static variable power source circuit is connected with direct current input switch K2 after inductance L 5.
2. a kind of aircraft floor compact power supply adapting to multiple supply power mode as claimed in claim 1, is characterized in that: described former limit winding serial and parallel switching circuit realizes connection in series-parallel by the mode that contactor commutation circuit connects and switches.
3. a kind of aircraft floor compact power supply adapting to multiple supply power mode as claimed in claim 1, it is characterized in that: when the information of voltage that described line voltage sample circuit collects is 200V, 208V, 220V, 230V or 240V, described former limit winding serial and parallel switching circuit switches to and makes two winding parallels;
When the information of voltage that described line voltage sample circuit collects is 380V, 400V, 410V, 440V or 460V, described former limit winding serial and parallel switching circuit switches to and makes two windings in series.
4. a kind of aircraft floor compact power supply adapting to multiple supply power mode as claimed in claim 1, is characterized in that: be provided with anti-reverse diode between the DC bus of described direct current input switch K2 and three-phase mid-frequency quiet variable power source circuit and direct-current static variable power source circuit.
5. a kind of aircraft floor compact power supply adapting to multiple supply power mode as claimed in claim 1, is characterized in that: also comprise the outer casing of power supply with roller.
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| CN107786105A (en) * | 2016-08-30 | 2018-03-09 | 中国飞行试验研究院 | A kind of Transformer Rectifier system based on harmonics restraint |
| CN108306516A (en) * | 2018-03-21 | 2018-07-20 | 山东艾诺仪器有限公司 | A kind of airplane ground static variable power source of automatic deploying and retracting cable |
| CN109689504A (en) * | 2016-10-04 | 2019-04-26 | 莱茵金属陆地系统有限公司 | For starting and overhauling the ground start device of aircraft jet formula engine |
| CN113544932A (en) * | 2017-10-07 | 2021-10-22 | 伊利诺斯工具制品有限公司 | Battery-powered ground power supply unit with improved structure, operability, durability and maintainability |
| EE01581U1 (en) * | 2021-10-22 | 2022-09-15 | OÜ ElectroAir | Converter-rectifier of aerodrome ground power unit |
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| CN108306516A (en) * | 2018-03-21 | 2018-07-20 | 山东艾诺仪器有限公司 | A kind of airplane ground static variable power source of automatic deploying and retracting cable |
| EE01581U1 (en) * | 2021-10-22 | 2022-09-15 | OÜ ElectroAir | Converter-rectifier of aerodrome ground power unit |
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