CN202617009U - Big power three-phase triple direct current chopper device - Google Patents
Big power three-phase triple direct current chopper device Download PDFInfo
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- CN202617009U CN202617009U CN 201220234211 CN201220234211U CN202617009U CN 202617009 U CN202617009 U CN 202617009U CN 201220234211 CN201220234211 CN 201220234211 CN 201220234211 U CN201220234211 U CN 201220234211U CN 202617009 U CN202617009 U CN 202617009U
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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Abstract
The utility model relates to the wind power generation converting technology, and especially relates to a big power three-phase triple direct current chopper device. The device solves the problems of high cost, complex control, and high maintenance cost existing in a conventional wind power generation converting device. The big power three-phase triple direct current chopper device includes a motor side converting device, an electric network side converting device, and a chopper control device. The motor side converting device includes a three-phase uncontrolled rectifier circuit and a triple boost chopper circuit. The electric network side converting device includes a three-phase PWM inversion circuit. The positive output terminal of the three-phase uncontrolled rectifier circuit is connected with the positive input terminal of the triple boost chopper circuit. Based on the new structure, the big power three-phase triple direct current chopper device effectively solves the problems of high cost, complex control, and high maintenance cost existing in the conventional wind power generation converting device, is suitable for the wind power generation conversion, and is especially suitable for the low wind speed direct-driven wind power generation conversion.
Description
Technical field
The utility model relates to wind power generation unsteady flow technology, specifically is the triple DC chopped-wave devices of a kind of high-power three-phase.
Background technology
Wind power generation is as a kind of regenerative resource novel, cleaning, and at home and abroad development is swift and violent in recent years.In order to realize wind-electricity integration, need between wind turbine generator and electrical network, be connected wind power generation unsteady flow device.Existing wind power generation unsteady flow device generally includes motor side convertor assembly that is made up of the three-phase PWM rectification circuit and the grid side convertor assembly that is made up of the three-phase PWM inverter circuit.Wherein, The three-phase PWM rectification circuit is used for the magnitude of wind turbine generator output, the ac voltage rectifier of frequency change are become direct voltage; It is the alternating voltage of amplitude stability, frequency stabilization that the three-phase PWM inverter circuit is used for the direct voltage inversion, and is connected power output with electrical network.As shown in Figure 1, said three-phase PWM rectification circuit comprises first rectifier bridge that is made up of the 17-the 20 IGBTM17-M20, second rectifier bridge that is made up of the 21-the 24 IGBTM21-M24 and the 3rd rectifier bridge that is made up of the 25-the 28 IGBTM25-M28.Second inverter bridge that said three-phase PWM inverter circuit comprises first inverter bridge that is made up of the 4th-Di seven IGBTM4-M7, be made up of the 8th-Di 11 IGBTM8-M11, the 3rd inverter bridge that constitutes by 12-Di, 15 IGBTM12-M15.During work, the three-phase input end of three-phase PWM rectification circuit connects wind turbine generator, and the three-phase output end of three-phase PWM inverter circuit connects electrical network.Through the electric current of each IGBT in the PWM control three-phase PWM rectification circuit, reach the purpose of indirect control direct voltage.Through the electric current of each IGBT in the PWM control three-phase PWM inverter circuit, reach the purpose of indirect control alternating voltage.But because three-phase PWM rectification circuit and three-phase PWM inverter circuit all need adopt high-power PWM control mode, cause that existing wind power generation unsteady flow device exists that equipment cost is higher, control complicacy, maintenance cost problem of higher.Be necessary to invent a kind of brand-new wind power generation unsteady flow device, to solve the problems referred to above that existing wind power generation unsteady flow device exists for this reason.
Summary of the invention
Existing wind power generation unsteady flow appliance arrangement cost is higher in order to solve, control is complicated for the utility model, the maintenance cost problem of higher, provides a kind of high-power three-phase triple DC chopped-wave devices.
The utility model is to adopt following technical scheme to realize: the triple DC chopped-wave devices of high-power three-phase comprise motor side convertor assembly, grid side convertor assembly and copped wave control device; Said motor side convertor assembly comprises three-phase not control rectifying circuit and triple boost chopper; Said grid side convertor assembly comprises the three-phase PWM inverter circuit; The three-phase not positive output end of control rectifying circuit is connected with the positive input terminal of triple boost choppers; The three-phase not negative output terminal of control rectifying circuit is connected with the negative input end of triple boost choppers; The positive output end of triple boost choppers is connected with the positive input terminal of three-phase PWM inverter circuit; The negative output terminal of triple boost choppers is connected with the negative input end of three-phase PWM inverter circuit; The control end of the control end of triple boost choppers, three-phase PWM inverter circuit all is connected with the output of copped wave control device.
During work, the three-phase not three-phase input end of control rectifying circuit connects wind turbine generator, and the three-phase output end of three-phase PWM inverter circuit connects electrical network.Three-phase not control rectifying circuit is used for the ac voltage rectifier of wind turbine generator output is become direct voltage.Regulate the copped wave peak pulse duration of triple boost choppers through the copped wave control device, realize the stable of direct voltage.Particularly, when wind speed was low, the output voltage of wind turbine generator was lower, and this moment is through increasing the copped wave peak pulse duration of triple boost choppers, with dc voltage stability in the assigned voltage value.When wind speed was higher, the output voltage of wind turbine generator was higher, this moment through reducing the copped wave peak pulse duration of triple boost choppers, with dc voltage stability in the assigned voltage value.Through copped wave control device control three-phase PWM inverter circuit, it is the alternating voltage of amplitude stability, frequency stabilization that galvanic current is pressed inversion, and is connected power output with electrical network.Based on said process; Compare with existing wind power generation unsteady flow device, the triple DC chopped-wave devices of the described high-power three-phase of the utility model adopt three-phase not control rectifying circuit and triple boost chopper substitute original three-phase PWM rectification circuit as the motor side convertor assembly, significantly reduced the IGBT quantity in the motor side convertor assembly; Equipment cost and maintenance cost have not only been reduced thus; Improved reliability, and simplified control, made control become simpler.
The utility model is based on brand-new structure, efficiently solves that existing wind power generation unsteady flow appliance arrangement cost is higher, control is complicated, the maintenance cost problem of higher, is applicable to the wind power generation unsteady flow, is particularly useful for low wind speed district direct-driving type wind power generation unsteady flow.
Description of drawings
Fig. 1 is the structural representation of existing wind power generation unsteady flow device.
Fig. 2 is the motor side convertor assembly of the utility model and the structural representation of grid side convertor assembly.
Fig. 3 is the structural representation of the copped wave control device of the utility model.
Fig. 4 is the waveform sketch map of three-phase copped wave pwm control signal of the first copped wave control chip output of the utility model.
Embodiment
The triple DC chopped-wave devices of high-power three-phase comprise motor side convertor assembly, grid side convertor assembly and copped wave control device; Said motor side convertor assembly comprises three-phase not control rectifying circuit and triple boost chopper; Said grid side convertor assembly comprises the three-phase PWM inverter circuit; The three-phase not positive output end of control rectifying circuit is connected with the positive input terminal of triple boost choppers; The three-phase not negative output terminal of control rectifying circuit is connected with the negative input end of triple boost choppers; The positive output end of triple boost choppers is connected with the positive input terminal of three-phase PWM inverter circuit; The negative output terminal of triple boost choppers is connected with the negative input end of three-phase PWM inverter circuit; The control end of the control end of triple boost choppers, three-phase PWM inverter circuit all is connected with the output of copped wave control device;
Said three-phase not control rectifying circuit comprise first rectifier bridge that constitutes by first-Di, four diode D1-D4, second rectifier bridge that constitutes by the 5th-Di eight diode D5-D8 and the 3rd rectifier bridge that constitutes by the 9th-Di 12 diode D9-D12; The positive output end of the positive output end of the positive output end of first rectifier bridge, second rectifier bridge, the 3rd rectifier bridge also connects the not positive output end of control rectifying circuit of formation three-phase; The negative output terminal of the negative output terminal of the negative output terminal of first rectifier bridge, second rectifier bridge, the 3rd rectifier bridge also connects the not negative output terminal of control rectifying circuit of formation three-phase;
Said triple boost chopper comprises first-Di, three IGBTM1-M3, first-Di, three inductance L 1-L3,13-Di, 15 diode D13-D15; The end of first-Di, three inductance L 1-L3 also connects the positive input terminal that constitutes triple boost choppers; The collector electrode of the other end of first inductance L 1, an IGBTM1 all is connected with the positive pole of the 13 diode D13; The collector electrode of the other end of second inductance L 2, the 2nd IGBTM2 all is connected with the positive pole of the 14 diode D14; The collector electrode of the other end of the 3rd inductance L 3, the 3rd IGBTM3 all is connected with the positive pole of the 15 diode D15; The negative pole of 13-Di, 15 diode D13-D15 also connects the positive output end that constitutes triple boost choppers; The emitter of first-Di, three IGBTM1-M3 also connects the negative input end that constitutes triple boost choppers; The emitter of first-Di, three IGBTM1-M3 also connects the negative output terminal that constitutes triple boost choppers; The common control end that constitutes triple boost choppers of the grid of first-Di, three IGBTM1-M3;
Second inverter bridge that said three-phase PWM inverter circuit comprises first inverter bridge that is made up of the 4th-Di seven IGBTM4-M7, be made up of the 8th-Di 11 IGBTM8-M11, the 3rd inverter bridge that constitutes by 12-Di, 15 IGBTM12-M15; The positive input terminal of the positive input terminal of the positive input terminal of first inverter bridge, second inverter bridge, the 3rd inverter bridge also connects the positive input terminal that constitutes the three-phase PWM inverter circuit; The negative input end of the negative input end of the negative input end of first inverter bridge, second inverter bridge, the 3rd inverter bridge also connects the negative input end that constitutes the three-phase PWM inverter circuit; The grid of the 4th-Di 15 IGBTM4-M15 constitutes the control end of three-phase PWM inverter circuit jointly;
Said copped wave control device comprises the first copped wave control chip N1, the second copped wave control chip N2, dual port RAM chip N3 and CPLD chip N4; The address bus of the first copped wave control chip N1 is connected with the right-hand member address bus of dual port RAM chip N3; The data/address bus of the first copped wave control chip N1 is connected with the right-hand member data/address bus of dual port RAM chip N3; The address bus of the second copped wave control chip N2 is connected with the left end address bus of dual port RAM chip N3; The data/address bus of the second copped wave control chip N2 is connected with the left end data/address bus of dual port RAM chip N3; The control bus of the first copped wave control chip N1 is connected with the right-hand member control bus of CPLD chip N4; The control bus of the second copped wave control chip N2 is connected with the left end control bus of CPLD chip N4; The output of the first copped wave control chip N1 constitutes the output of copped wave control device; During work, the first copped wave control chip is used for logic control and network interface, and the second copped wave control chip is used for the complex mathematical computing; Pass through dual port RAM chip swap data between the first copped wave control chip and the second copped wave control chip; The CPLD chip is used to realize timing management and the chip selection logic between the first copped wave control chip, the second copped wave control chip, the dual port RAM chip; As shown in Figure 4, the first copped wave control chip is exported the three-phase copped wave pwm control signal of 120 ° of alternate mutual deviations, realizes the control to triple boost choppers and three-phase PWM inverter circuit;
Also comprise the 16 diode D16, the 16 IGBTM16, resistance R, the 4th-Di five capacitor C 4-C5; The negative pole of the 16 diode D16 is connected with the positive output end of triple boost choppers; The emitter of the 16 IGBT M16 is connected with the negative output terminal of triple boost choppers; The positive pole of the 16 diode D16 is connected with the collector electrode of the 16 IGBTM16; Resistance R is connected between the positive and negative electrode of the 16 diode D16; The 5th capacitor C 5 is connected between the positive and negative input of triple boost choppers; The 4th capacitor C 4 is connected between the positive and negative output of triple boost choppers;
During practical implementation, as shown in Figure 2, the three-phase not three-phase input end of control rectifying circuit connects wind turbine generator G, and the three-phase output end of three-phase PWM inverter circuit connects electrical network T through first-Di, three capacitor C 1-C3.As shown in Figure 3, the first copped wave control chip adopts the powerful TMS320LF2407A type control chip of peripheral function.The second copped wave control chip adopts the TMS320VC33 type control chip that can carry out floating-point operation.The dual port RAM chip adopts IDT70V24S25PF type dual port RAM chip.The CPLD chip adopts EPM7064AETC100-10CPLD type CPLD chip.
Claims (6)
1. the triple DC chopped-wave devices of high-power three-phase is characterized in that: comprise motor side convertor assembly, grid side convertor assembly and copped wave control device; Said motor side convertor assembly comprises three-phase not control rectifying circuit and triple boost chopper; Said grid side convertor assembly comprises the three-phase PWM inverter circuit; The three-phase not positive output end of control rectifying circuit is connected with the positive input terminal of triple boost choppers; The three-phase not negative output terminal of control rectifying circuit is connected with the negative input end of triple boost choppers; The positive output end of triple boost choppers is connected with the positive input terminal of three-phase PWM inverter circuit; The negative output terminal of triple boost choppers is connected with the negative input end of three-phase PWM inverter circuit; The control end of the control end of triple boost choppers, three-phase PWM inverter circuit all is connected with the output of copped wave control device.
2. the triple DC chopped-wave devices of high-power three-phase according to claim 1 is characterized in that: said three-phase not control rectifying circuit comprises by first rectifier bridge of first-Di, four diodes (D1-D4) formation, by second rectifier bridge of the 5th-Di eight diodes (D5-D8) formation and the 3rd rectifier bridge that is made up of the 9th-Di 12 diodes (D9-D12); The positive output end of the positive output end of the positive output end of first rectifier bridge, second rectifier bridge, the 3rd rectifier bridge also connects the not positive output end of control rectifying circuit of formation three-phase; The negative output terminal of the negative output terminal of the negative output terminal of first rectifier bridge, second rectifier bridge, the 3rd rectifier bridge also connects the not negative output terminal of control rectifying circuit of formation three-phase.
3. the triple DC chopped-wave devices of high-power three-phase according to claim 1 is characterized in that: said triple boost choppers comprise first-Di, three IGBT (M1-M3), first-Di, three inductance (L1-L3), 13-Di, 15 diodes (D13-D15); One end of first-Di, three inductance (L1-L3) also connects the positive input terminal that constitutes triple boost choppers; The collector electrode of the other end of first inductance (L1), an IGBT (M1) all is connected with the positive pole of the 13 diode (D13); The collector electrode of the other end of second inductance (L2), the 2nd IGBT (M2) all is connected with the positive pole of the 14 diode (D14); The collector electrode of the other end of the 3rd inductance (L3), the 3rd IGBT (M3) all is connected with the positive pole of the 15 diode (D15); The negative pole of 13-Di, 15 diodes (D13-D15) also connects the positive output end that constitutes triple boost choppers; The emitter of first-Di, three IGBT (M1-M3) also connects the negative input end that constitutes triple boost choppers; The emitter of first-Di, three IGBT (M1-M3) also connects the negative output terminal that constitutes triple boost choppers; The common control end that constitutes triple boost choppers of the grid of first-Di, three IGBT (M1-M3).
4. the triple DC chopped-wave devices of high-power three-phase according to claim 1 is characterized in that: second inverter bridge that said three-phase PWM inverter circuit comprises first inverter bridge that is made up of the 4th-Di seven IGBT (M4-M7), be made up of the 8th-Di 11 IGBT (M8-M11), the 3rd inverter bridge that is made up of 12-Di, 15 IGBT (M12-M15); The positive input terminal of the positive input terminal of the positive input terminal of first inverter bridge, second inverter bridge, the 3rd inverter bridge also connects the positive input terminal that constitutes the three-phase PWM inverter circuit; The negative input end of the negative input end of the negative input end of first inverter bridge, second inverter bridge, the 3rd inverter bridge also connects the negative input end that constitutes the three-phase PWM inverter circuit; The grid of the 4th-Di 15 IGBT (M4-M15) constitutes the control end of three-phase PWM inverter circuit jointly.
5. the triple DC chopped-wave devices of high-power three-phase according to claim 1 is characterized in that: said copped wave control device comprises the first copped wave control chip (N1), the second copped wave control chip (N2), dual port RAM chip (N3) and CPLD chip (N4); The address bus of the first copped wave control chip (N1) is connected with the right-hand member address bus of dual port RAM chip (N3); The data/address bus of the first copped wave control chip (N1) is connected with the right-hand member data/address bus of dual port RAM chip (N3); The address bus of the second copped wave control chip (N2) is connected with the left end address bus of dual port RAM chip (N3); The data/address bus of the second copped wave control chip (N2) is connected with the left end data/address bus of dual port RAM chip (N3); The control bus of the first copped wave control chip (N1) is connected with the right-hand member control bus of CPLD chip (N4); The control bus of the second copped wave control chip (N2) is connected with the left end control bus of CPLD chip (N4); The output of the first copped wave control chip (N1) constitutes the output of copped wave control device.
6. the triple DC chopped-wave devices of high-power three-phase according to claim 1 is characterized in that: also comprise the 16 diode (D16), the 16 IGBT (M16), resistance (R), the 4th-Di five electric capacity (C4-C5); The negative pole of the 16 diode (D16) is connected with the positive output end of triple boost choppers; The emitter of the 16 IGBT (M16) is connected with the negative output terminal of triple boost choppers; The positive pole of the 16 diode (D16) is connected with the collector electrode of the 16 IGBT (M16); Resistance (R) is connected between the positive and negative electrode of the 16 diode (D16); The 5th electric capacity (C5) is connected between the positive and negative input of triple boost choppers; The 4th electric capacity (C4) is connected between the positive and negative output of triple boost choppers.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220234211 CN202617009U (en) | 2012-05-23 | 2012-05-23 | Big power three-phase triple direct current chopper device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220234211 CN202617009U (en) | 2012-05-23 | 2012-05-23 | Big power three-phase triple direct current chopper device |
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| CN202617009U true CN202617009U (en) | 2012-12-19 |
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| CN 201220234211 Expired - Fee Related CN202617009U (en) | 2012-05-23 | 2012-05-23 | Big power three-phase triple direct current chopper device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684509A (en) * | 2012-05-23 | 2012-09-19 | 永济新时速电机电器有限责任公司 | High-power three-phase triple direct-current chopping device |
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- 2012-05-23 CN CN 201220234211 patent/CN202617009U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102684509A (en) * | 2012-05-23 | 2012-09-19 | 永济新时速电机电器有限责任公司 | High-power three-phase triple direct-current chopping device |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20170523 |
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| CF01 | Termination of patent right due to non-payment of annual fee |