CN2481039Y - Electricity converter capable of raising utilization coefficient of wind generated energy - Google Patents
Electricity converter capable of raising utilization coefficient of wind generated energy Download PDFInfo
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- CN2481039Y CN2481039Y CN 01225687 CN01225687U CN2481039Y CN 2481039 Y CN2481039 Y CN 2481039Y CN 01225687 CN01225687 CN 01225687 CN 01225687 U CN01225687 U CN 01225687U CN 2481039 Y CN2481039 Y CN 2481039Y
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Abstract
An electricity converter capable of raising utilization coefficient of wind generated energy is provided. The device orderly consists of a PFC three-phase rectifier and filter circuit, a storage battery, a SPWM controlling three-phase inverter bridge and three groups of LC filters. As the PFC three-phase rectifier and filter circuit consisting of a reactor, a positive-negative rectifying filter, a pulse width modulation driving circuit, an input power factor correction pulse width modulation control circuit and a positive-negative rectifier output voltage detecting circuit is used, the device can promote the electrical energy produced by low speed wind energy and unstable wind energy during wind power generation process into stable and utilizable electrical energy. Due to the device, wind power generating equipment can be provided without speed regulating system and raising speed transmission device, and wind rotor blades can be made into fixed pitch.
Description
The utility model relates to the used for wind-energy power generation electrical domain, and particularly wind power generation send transformation device.
The problem of wind energy utilization be how to solve more reasonably that wind energy concentration is low, randomness, intermittence ... problems such as .., and how to adopt accumulation of energy mode deallocation to close make the user obtain stablizing high-quality electric energy.Existing wind power generation send transformation device normally to utilize storage battery to store certain electric energy, uses storage battery power supply when calm.In order to maximally utilise wind energy, prior art must be provided with governing system, overgear in wind power generation plant.Like this constitute following defective: 1. mechanism's complexity height, manufacturing expense height, reliability decrease; 2. energy does not utilize to greatest extent, and low speed and high speed Wind Power Utilization get bad, and capacity usage ratio is low.3. the quality of power supply that outputs to the user is bad, the poor stability of its voltage and frequency.
The purpose of this utility model provides a kind ofly makes that wind power generation plant mechanical structure is simple, low cost of manufacture, reliable, wind energy utilization is high, the stable wind power generation of power supply send transformation device.
To achieve these goals, the technical solution of the utility model is: a kind of transformation device that send that improves the wind power generation capacity usage ratio, this device is controlled three phase inverter bridge by PFC type three phase rectifier filter circuit, storage battery, SPWM, and three groups of LC filters and common port PE form; The input 1 of PFC type three phase rectifier filter circuit, end 2, end 3 connect three outputs of three-phase permanent magnet electricity generator respectively, its common port PE connects the neutral point of three-phase permanent magnet electricity generator, and two outputs 8 of PFC type three phase rectifier filter circuit, end 9 meet series connection storage battery B respectively
11, B
12Two ends, its another output 7 meets storage battery B
11, B
12Middle interface after connect PE end again; Positive-negative power termination end 8, the end 9 of SPWM control three phase inverter bridge, its three-phase output end connects end 10, end 11, the end 12 of three groups of LC filters, the earth point of three groups of LC filters meets PE, and its three outputs 13, end 14, end 15 connect U, V, the W end of threephase load, and the PE utmost point connects the neutral point of load.
PFC type three phase rectifier filter circuit is by reactor L
11, L
12, L
13, diode D
1, D
2, D
3, D
4, D
5, D
6, capacitor C
11, C
12, C
13, C
21, C
22, C
31, C
32, resistance R
31, R
32, R
33, R
11, R
12, R
21, R
22, rectifier bridge Z
1, Z
2, Z
3, switching tube Q
1, Q
2, Q
3, detect control drive unit DY
1, DY
2, DY
3, testing circuit DY
4Form; Z
1, Z
2, Z
3Each ac input end be connected across respectively the end 4, the end 5, the end 6 and common port PE on, its each rectification output end meets Q respectively
1, Q
2, Q
3Source electrode and drain electrode, Q
1, Q
2, Q
3The control utmost point and source electrode 27,28,29,30,31,32 meet control unit DY respectively
1, DY
2, DY
3Output.DY
1, DY
2, DY
3Input current signal end 16,19,22 meet current transformer S respectively
11, S
12, S
13, its input voltage signal end 18,21,24 meets R respectively
31, R
32, R
33, R
31, R
32, R
33The other end connect end 1, end 2, end 3 and C respectively
11, C
12, C
13, C
11, C
12, C
13Another termination PE end; DY
4Two the input termination end 25,26, ground wire meets PE, its three output meets DY respectively
1, DY
2, DY
3End 17,20,23; D
1And D
2, D
3And D
4, D
5And D
6Be connected across on end 8, the end 9 after being connected into three-phase commutation bridge, its AC input terminal meets end 4, end 5, end 6, C respectively
21And C
22, C
31And C
32Be connected across after the series connection respectively on end 8, the end 9, become end 7 and PE to join after its interface joins; R
11, R
12, R
22, R
21Be connected across after the series connection on end 8, the end 9, interface meets PE in the middle of it, and two tie points 25,26 meet DY in addition
4L
11, L
12, L
13Be connected on end 1,4 respectively, end 2,5 is between the end 3,6.
SPWM control three phase inverter bridge is by switch transistor T
11, T
12, T
21, T
22, T
31, T
32, continued flow tube D
11, D
12, D
21, D
22, D
31, D
32, driving stage Q
11, Q
12, Q
21, Q
22, Q
31, Q
32, three-phase SPWM generator DY
5, voltage negative feedback unit DY
3, over-current detection unit DY
8Form; T
11And T
12, T
21And T
22, T
31And T
32, D
11And D
12, D
21And D
22, D
31And D
32Be connected across on end 8, the end 9 T respectively after the series connection
11And T
12, D
11And D
12The series connection mid point connect the back and become end 10 to meet reactor L
41, T
21And T
22, D
21And D
22The series connection mid point connect the back and become end 11 to meet reactor L
42, T
31And T
32, D
31And D
32The series connection mid point connect the back and become end 12 to meet reactor L
43, Q
11, Q
12, Q
21, Q
22, Q
31, Q
32Two ends separately be connected on T respectively
11, T
12, T
21, T
22, T
31, T
32The control utmost point and DY
5Output on, DY
5Each input control termination DY
6, DY
7, DY
8Output, DY
7Three inputs connect respectively the end 10,11,12, DY
8Three inputs meet current transformer S respectively
51, S
52, S
53
Three groups of LC filters are by reactor L
41, L
42, L
43With capacitor C
41, C
42, C
43Form; L
41And C
41, L
42And C
42, L
43And C
43Series connection respectively, its reactor end connects end 10,11,12 respectively, and capacitor termination PE, the mid point after the series connection become three outputs of this device respectively.
Because the utility model has adopted PFC type three phase rectifier filter circuit, make low velocity wind energy and be interrupted unstable wind energy and be fully used, because realization of the present utility model, wind energy receiving device needn't be made the variable pitch structure, traditional governing system will no longer need, thereby make wind energy conversion system simple in structure, cheap, operating cost is low, it is more reliable and more stable to power.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is typical wind one electric energy conversion device schematic diagram.
Fig. 2 send the transformation device circuit block diagram for the three-phase wind power generation.
Fig. 3 send transformation device major loop and controlling party block diagram in detail for the three-phase wind power generation.
Fig. 2, a kind of three-phase wind power generation shown in Figure 3 send transformation device, and this device is controlled three phase inverter bridge by PFC type three phase rectifier filter circuit, storage battery, SPWM, and three groups of LC filters and common port PE form; The input 1 of PFC type three phase rectifier filter circuit, end 2, end 3 connect three outputs of three-phase permanent magnet electricity generator respectively, its common port PE connects the neutral point of three-phase permanent magnet electricity generator, and two outputs 8 of PFC type three phase rectifier filter circuit, end 9 meet series connection storage battery B respectively
11, B
12Two ends, its another output 7 meets storage battery B
11, B
12Middle interface after connect PE end again; Positive-negative power termination end 8, the end 9 of SPWM control three phase inverter bridge, its three-phase output end connects end 10, end 11, the end 12 of three groups of LC filters, the earth point of three groups of LC filters meets PE, and its three outputs 13, end 14, end 15 connect U, V, the W end of threephase load, and the PE utmost point connects the neutral point of load.
PFC type three phase rectifier filter circuit is by reactor L
11, L
12, L
13, diode D
1, D
2, D
3, D
4, D
5, D
6, capacitor C
11, C
12, C
13, C
21, C
22, C
31, C
32, resistance R
31, R
32, R
33, R
11, R
12, R
21, R
22, rectifier bridge Z
1, Z
2, Z
3, switching tube Q
1, Q
2, Q
3, detect control drive unit DY
1, DY
2, DY
3, testing circuit DY
4Form; Z
1, Z
2, Z
3Each ac input end be connected across respectively the end 4, the end 5, the end 6 and common port PE on, its each rectification output end meets Q respectively
1, Q
2, Q
3Source electrode and drain electrode, Q
1, Q
2, Q
3The control utmost point and source electrode 27,28,29,30,31,32 meet control unit DY respectively
1, DY
2, DY
3Output.DY
1, DY
2, DY
3Input current signal end 16,19,22 meet current transformer S respectively
11, S
12, S
13, its input voltage signal end 18,21,24 meets R respectively
31, R
32, R
33, R
31, R
32, R
33The other end connect end 1, end 2, end 3 and C respectively
11, C
12, C
13, C
11, C
12, C
13Another termination PE end; DY
4Two the input termination end 25,26, ground wire meets PE, its three output meets DY respectively
1, DY
2, DY
3End 17,20,23; D
1And D
2, D
3And D
4, D
5And D
6Be connected across on end 8, the end 9 after being connected into three-phase commutation bridge, its AC input terminal meets end 4, end 5, end 6, C respectively
22And C
22, C
31And C
32Be connected across after the series connection respectively on end 8, the end 9, become end 7 and PE to join after its interface joins; R
11, R
12, R
22, R
21Be connected across after the series connection on end 8, the end 9, interface meets PE in the middle of it, and two tie points 25,26 meet DY in addition
4L
11, L
12, L
13Be connected on end 1,4 respectively, end 2,5 is between the end 3,6.
SPWM control three phase inverter bridge is by switch transistor T
11, T
12, T
21, T
22, T
31, T
32, continued flow tube D
11, D
12, D
21, D
22, D
31, D
32, driving stage Q
11, Q
12, Q
21, Q
22, Q
31, Q
32, three-phase SPWM generator DY
5, voltage negative feedback unit DY
7, over-current detection unit DY
8Form; T
11And T
12, T
21And T
22, T
31And T
32, D
11And D
12, D
21And D
22, D
31And D
32Be connected across on end 8, the end 9 T respectively after the series connection
11And T
12, D
11And D
12The series connection mid point connect the back and become end 10 to meet reactor L
41, T
21And T
22, D
21And D
22The series connection mid point connect the back and become end 11 to meet reactor L
42, T
31And T
32, D
31And D
32The series connection mid point connect the back and become end 12 to meet reactor L
43, Q
11, Q
12, Q
21, Q
22, Q
31, Q
32Two ends separately be connected on T respectively
11, T
12, T
21, T
22, T
31, T
32The control utmost point and DY
5Output on, DY
5Each input control termination DY
6, DY
7, DY
8Output, DY
7Three inputs connect respectively the end 10,11,12, DY
8Three inputs meet current transformer S respectively
51, S
52, S
53
Three groups of LC filters are by reactor L
41, L
42, L
43With capacitor C
41, C
42, C
43Form; L
41And C
41, L
42And C
42, L
43And C
43Series connection respectively, its reactor end connects end 10,11,12 respectively, and capacitor termination PE, the mid point after the series connection become three outputs of this device respectively.
Wind energy conversion system FL drives three-phase permanent magnet electricity generator FD, and the three phase winding output ACs electricity AC200-400V of FD sends into PFC type current rectifying and wave filtering circuit.The PFC type circuit that uses is connected into the three-phase form, and every all have reactor (L mutually
11, L
12, L
13) and positive negative value rectifier filter (D
1, D
2, D
3, D
4, D
5, D
6And C
21, C
31, C
22, C
32), pulse-width modulation drive circuit (Z
1, Z
2, Z
3, Q
1, Q
2, Q
3) input power factor correction control circuit for pulse-width modulation (DY
1, DY
2, DY3
1The unit), by sample resistance R
11, R
12, R
21, R
22The positive negative value rectifier output voltage testing circuit DY of signal is provided
4Deng form.Provide optimum power factor by these PFC type current rectifying and wave filtering circuits that constitute to generator FD, FD sends voltage when wide region changes, can both be made into its voltage+390V and-390V.
Capacitor C
21, C
31And C
22, C
32Be used for constituting the energy storage and the filter circuit of the three phase inverter bridge of the alternating current path of PFC type circuit and back, two groups of high voltage storage battery B that voltage equates
11And B
12Storage ± 390V direct current, it stores with the direct current form after the voltage lifting and feedback stability of pfc circuit passed through in wind-driven generator instability energy source.
SPWM control three phase inverter bridge is by switch transistor T
11, T
12, T
21, T
22, T
31, T
32, continued flow tube D
11, D
12, D
21, D
22, D
31, D
32, driving stage Q
11, Q
12, Q
21, Q
22, Q
31, Q
32Form, its signal is from three-phase SPWM generator DY
5, the SPWM generator is a three-phase sine-wave pulse-width modulator, the signal that it produces makes T
11-T
32Switch on request, thereby the pulse of sine law modulation is pressed in output, owing to be subjected to voltage feedback unit DY
7With current feedback cells D Y
8Control, the three phase sine voltage amplitude of output is stablized, the inverter power element is protected during output overloading.
In order to eliminate the interference that brings because of pulse modulation, at output L
41, C
41, L
42, C
42, L
43, C
43The filter that constitutes purifies output voltage, makes the user obtain high-quality sinusoidal voltage.
S
11, S
12, S
13And S
51, S
52, S
53Be respectively input and output end current instrument transformer, respectively to pfc circuit (DY
1, DY
2, DY
3) and over-current detection unit (DY
8) current signal is provided.
Diverter switch J
31, J
32Be used for the switching that the wind power generation plant power supply is transformed into mains supply, and the parallel running of these two electric systems is switched.Energy storage storage battery B in wind power generation plant is used as specially when electrical network provides the use occasion of electric energy, and this installs
11, B
12Can save, with the total cost of economy system.
For the voltage-phase that strictly makes the wind power generation three-phase electricity with the electrical network unanimity, to guarantee the parallel running of two systems, introduced phase-locked synchronous control unit DY
6
Each part and the unit of above circuit all are existing current techiques, and these circuit make the unstable energy of wind power generation stably to utilize through combination of the present utility model, have improved the wind power generation energy utilization ratio.
Be converted to the device of electric energy for other unstable energy,, can use circuit theory of the present utility model equally, unsettled electric energy is changed into the AC energy of amplitude and frequency stabilization as morning and evening tides generating, wave-power device.
Claims (5)
1. transformation device that send that improves the wind power generation capacity usage ratio, it is characterized in that: this device is controlled three phase inverter bridge by PFC type three phase rectifier filter circuit, storage battery, SPWM, and three groups of LC filters and common port PE form; The input (1) of PFC type three phase rectifier filter circuit, end (2), end (3) connect three outputs of three-phase permanent magnet electricity generator respectively, its common port PE connects the neutral point of three-phase permanent magnet electricity generator, and two outputs (8) of PFC type three phase rectifier filter circuit, end (9) meet series connection storage battery B respectively
11, B
12Two ends, its another output (7) meets storage battery B
11, B
12Middle interface after connect PE end again; Positive-negative power termination end (8), the end (9) of SPWM control three phase inverter bridge, its three-phase output end connects end (10), end (11), the end (12) of three groups of LC filters, the earth point of three groups of LC filters meets PE, its three outputs (13), end (14), end (15) connect U, V, the W end of threephase load, and the PE utmost point connects the neutral point of load.
2. raising wind power generation capacity usage ratio according to claim 1 send transformation device, it is characterized in that: described PFC type three phase rectifier filter circuit is by reactor L
11, L
12, L
13, diode D
1, D
2, D
3, D
4, D
5, D
6, capacitor C
11, C
12, C
13, C
21, C
22, C
31, C
32, resistance R
31, R
32, R
33, R
11, R
12, R
21, R
22, rectifier bridge Z
1, Z
2, Z
3, switching tube Q
1, Q
2, Q
3, detect control drive unit DY
1, DY
2, DY
3, testing circuit DY
4Form; Z
1, Z
2, Z
3Each ac input end be connected across respectively on end (4), end (5), end (6) and the common port PE, its each rectification output end meets Q respectively
1, Q
2, Q
3Source electrode and drain electrode, Q
1, Q
2, Q
3The control utmost point and source electrode 27,28,29,30,31,32 meet control unit DY respectively
1, DY
2, DY
3Output.DY
1, DY
2, DY
3Input current signal end (16), (19), (22) meet current transformer S respectively
11, S
12, S
13, its input voltage signal end (18), (21), (24) meet R respectively
31, R
32, R
33, R
31, R
32, R
33The other end connect respectively end (1), the end (2), the end (3) and C
11, C
12, C
13, C
11, C
12, C
13Another termination PE end; DY
4Two input termination end (25), (26), ground wire meets PE, its three output meets DY respectively
1, DY
2, DY
3End (17), (20), (23); D
1And D
2, D
3And D
4, D
5And D
6Be connected across on end (8), the end (9) after being connected into three-phase commutation bridge, its AC input terminal meets end (4), end (5), end (6), C respectively
21And C
22, C
31And C
32Be connected across after the series connection respectively on end (8), the end (9), Cheng Duan (7) joined with PE after its interface joined; R
11, R
12, R
22, R
21Be connected across after the series connection on end (8), the end (9), interface meets PE in the middle of it, and two tie points (25), (26) meet DY in addition
4L
11, L
12, L
13Be connected on end (1), (4) respectively, end (2), (5) are between end (3), (6).
3. raising wind power generation capacity usage ratio according to claim 1 send transformation device, it is characterized in that: described SPWM control three phase inverter bridge is by switch transistor T
11, T
12, T
21, T
22, T
31, T
32, continued flow tube D
11, D
12, D
21, D
22, D
31, D
32, driving stage Q
11, Q
12, Q
21, Q
22, Q
31, Q
32, three-phase SPWM generator DY
5, voltage negative feedback unit DY
7, over-current detection unit DY
8Form; T
11And T
12, T
21And T
22, T
31And T
32, D
11And D
12, D
21And D
22, D
31And D
32Be connected across on end (8), the end (9) T respectively after the series connection
11And T
12, D
11And D
12The series connection mid point connect back Cheng Duan (10) and meet reactor L
41, T
21And T
22, D
21And D
22The series connection mid point connect back Cheng Duan (11) and meet reactor L
42, T
31And T
32, D
31And D
32The series connection mid point connect back Cheng Duan (12) and meet reactor L
43, Q
11, Q
12, Q
21, Q
22, Q
31, Q
32Two ends separately be connected on T respectively
11, T
12, T
21, T
22, T
31, T
32The control utmost point and DY
5Output on, DY
5Each input control termination DY
6, DY
7, DY
8Output, DY
7Three inputs meet end (10), (11), (12), DY respectively
8Three inputs meet current transformer S respectively
51, S
52, S
53
4. raising wind power generation capacity usage ratio according to claim 1 send transformation device, it is characterized in that: described three groups of LC filters are by reactor L
41, L
42, L
43With capacitor C
41, C
42, C
43Form; L
41And C
41, L
42And C
42, L
43And C
43Series connection respectively, its reactor end connects end (10), (11), (12) respectively, and capacitor termination PE, the mid point after the series connection become three outputs of this device respectively.
5. raising wind power generation capacity usage ratio according to claim 1 send transformation device, it is characterized in that: described storage battery B
11, B
12Be two groups of high voltage storage batterys, and voltage equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225687 CN2481039Y (en) | 2001-05-25 | 2001-05-25 | Electricity converter capable of raising utilization coefficient of wind generated energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01225687 CN2481039Y (en) | 2001-05-25 | 2001-05-25 | Electricity converter capable of raising utilization coefficient of wind generated energy |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00244904 Division CN2461194Y (en) | 2000-11-06 | 2000-11-06 | Power transmitting and transforming device for raising wind power generation energy ultilization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2481039Y true CN2481039Y (en) | 2002-03-06 |
Family
ID=33641618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01225687 Expired - Fee Related CN2481039Y (en) | 2001-05-25 | 2001-05-25 | Electricity converter capable of raising utilization coefficient of wind generated energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2481039Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100346570C (en) * | 2006-01-13 | 2007-10-31 | 马超峰 | Loading voltage distribution controlling system of intermittent small wind-driven generator |
| CN101057390B (en) * | 2004-11-04 | 2010-05-05 | Utc电力有限责任公司 | System and method for generating and utilizing electric power |
| CN101207289B (en) * | 2006-12-14 | 2012-06-13 | 株式会社日立制作所 | Wind power generation system |
| CN104401335A (en) * | 2014-12-02 | 2015-03-11 | 南车资阳机车有限公司 | Main driving system of hybrid power locomotive |
-
2001
- 2001-05-25 CN CN 01225687 patent/CN2481039Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101057390B (en) * | 2004-11-04 | 2010-05-05 | Utc电力有限责任公司 | System and method for generating and utilizing electric power |
| CN100346570C (en) * | 2006-01-13 | 2007-10-31 | 马超峰 | Loading voltage distribution controlling system of intermittent small wind-driven generator |
| CN101207289B (en) * | 2006-12-14 | 2012-06-13 | 株式会社日立制作所 | Wind power generation system |
| CN104401335A (en) * | 2014-12-02 | 2015-03-11 | 南车资阳机车有限公司 | Main driving system of hybrid power locomotive |
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