CN105990846A - Wind power converter device and converter device - Google Patents

Wind power converter device and converter device Download PDF

Info

Publication number
CN105990846A
CN105990846A CN201510094313.2A CN201510094313A CN105990846A CN 105990846 A CN105990846 A CN 105990846A CN 201510094313 A CN201510094313 A CN 201510094313A CN 105990846 A CN105990846 A CN 105990846A
Authority
CN
China
Prior art keywords
current
pusher side
end mouth
axial
direct
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510094313.2A
Other languages
Chinese (zh)
Other versions
CN105990846B (en
Inventor
王长永
蔡骊
陆岩松
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Delta Electronics Inc
Delta Optoelectronics Inc
Original Assignee
Delta Optoelectronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Delta Optoelectronics Inc filed Critical Delta Optoelectronics Inc
Priority to CN201810895088.6A priority Critical patent/CN109038639B/en
Priority to US14/794,844 priority patent/US9768706B2/en
Publication of CN105990846A publication Critical patent/CN105990846A/en
Priority to US15/674,512 priority patent/US10027239B2/en
Application granted granted Critical
Publication of CN105990846B publication Critical patent/CN105990846B/en
Priority to US16/902,934 priority patent/USRE49768E1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/4505—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only having a rectifier with controlled elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/487—Neutral point clamped inverters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/0074—Plural converter units whose inputs are connected in series
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/32—Means for protecting converters other than automatic disconnection
    • H02M1/322—Means for rapidly discharging a capacitor of the converter for protecting electrical components or for preventing electrical shock
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/443—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/45—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/452—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output waveform
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
    • H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M5/4585—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only having a rectifier with controlled elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
    • H02M7/539—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency
    • H02M7/5395—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
    • H02M1/0077—Plural converter units whose outputs are connected in series
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/75—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/757—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/7575—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only for high voltage direct transmission link
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]

Abstract

A wind power converter device comprises a plurality of grid-side converters, a plurality of machine-side converters, and a DC bus module. Each grid-side converter comprises a grid-side output port as well as first and second DC input ports which are electrically coupled to a power grid, and the second DC input port of each of any two adjacent grid-side converters is connected with the first DC input port of the other grid-side converter in series. Each machine-side converter comprises a machine-side input port and first and second DC output ports which are electrically coupled to the power grid, and the second DC output port of each of any two adjacent machine-side converters is connected with the first DC output port of the other machine-side converter in series. The DC bus module is electrically coupled between the grid-side converters and the machine-side converters.

Description

Wind electric converter device and converter device
Technical field
The invention relates to a kind of power technology, and in particular to a kind of converter device.
Background technology
Along with the development of regenerative resource, wind electric converter is as the core of wind-power electricity generation, also The emphasis constantly improved as technical staff.In electric drive converter and the field of power generating current transformer, can Multiple current transformer can be used according to the increase of power system capacity.But, use multiple current transformer often to need many The dc bus of individual distance carries out the transmission of voltage, as direct current transmission energetic portions cost cannot under Fall, will be unable to promote the usefulness of overall current transformer.It addition, when motor and electromotor are distant, that is, The current transformer of generator side and the current transformer of motor side farther out in the case of, multiple current transformer also can be used normal The dc bus needing multiple distance carries out the transmission of voltage, as direct current transmission energetic portions cost without Method declines, and will be unable to promote the usefulness of overall current transformer.
Therefore, how to design a new converter device, to solve above-mentioned problem, be for this industry Boundary's problem demanding prompt solution.
Summary of the invention
Therefore, an aspect of of the present present invention is to be to provide a kind of wind electric converter device, comprises: multiple nets Side converter, multiple pusher side current transformer and dc bus module.Net side converter respectively comprises electric property coupling In multiple net sides output port, the first direct-flow input end mouth and the second direct-flow input end mouth of electrical network, and One of them the second direct-flow input end mouth and another net side converter of any two adjacent net side converters First direct-flow input end mouth is in series.Pusher side current transformer respectively comprises and is electrically coupled to the multiple of rotor machine Pusher side input port, the first DC output end mouth and the second DC output end mouth, and any two are adjacent One of them the first direct current output of the second DC output end mouth and another pusher side current transformer of pusher side current transformer Port is in series.Dc bus module is electrically coupled between net side converter and pusher side current transformer.
Another aspect of the present invention is to be to provide a kind of wind electric converter device, comprises: n net side becomes Stream device, 2n pusher side current transformer and dc bus module.Net side converter respectively comprises and is electrically coupled to electricity Multiple net sides output port, the first direct-flow input end mouth, neutral point input port and second direct current of net Input port.Pusher side current transformer respectively comprise be electrically coupled to rotor machine multiple pusher side input ports, First DC output end mouth and the second DC output end mouth, and the second direct current of 2n-1 pusher side current transformer First DC output end mouth of output port and 2n pusher side current transformer is in series.Dc bus module is electrical It is coupled between net side converter and pusher side current transformer.Wherein n >=1.
Another aspect of the present invention is to be to provide a kind of wind electric converter device, comprises: 2n net side becomes Stream device, n pusher side current transformer and dc bus module.Net side converter respectively comprises and is electrically coupled to electricity Multiple net sides output port, the first direct-flow input end mouth and the second direct-flow input end mouth of net, and 2n-1 Second direct-flow input end mouth of net side converter and the first direct-flow input end mouth phase of 2n net side converter Series connection.Pusher side current transformer respectively comprise be electrically coupled to multiple pusher side input ports of rotor machine, first DC output end mouth, neutral point output port and the second DC output end mouth.Dc bus module is electrical It is coupled between net side converter and pusher side current transformer.Wherein n >=1.
Another aspect of the present invention is to be to provide a kind of converter device, comprises: multiple first pusher sides become Stream device, multiple second pusher side current transformer and dc bus module.First pusher side current transformer respectively comprises electrically It is coupled to multiple motor side output ports of electric machine, the first direct-flow input end mouth and the second direct current defeated Inbound port, and any two first adjacent current transformers one of them the second direct-flow input end mouth with another the First direct-flow input end mouth of one current transformer is in series.Second pusher side current transformer respectively comprise be electrically coupled to send out Multiple generator side input ports of electric machine, the first DC output end mouth and the second DC output end Mouthful, and any two second adjacent current transformers one of them the second DC output end mouth with another second become First DC output end mouth of stream device is in series.Dc bus module is electrically coupled to the first pusher side current transformer And second between pusher side current transformer.
Application it is an advantage of the current invention that wind electric converter device can pass through any two adjacent nets of electric property coupling Net side converter is connected by the first direct-flow input end mouth and the second direct-flow input end mouth between side converter, with And the first DC output end mouth and the second direct current between any two adjacent pusher side current transformers of electric property coupling exports Pusher side current transformer is connected by port, and is readily achieved above-mentioned purpose.Other converter devices can lead to Cross the first direct-flow input end mouth between any two first adjacent current transformers of electric property coupling and the input of the second direct current First current transformer is connected by port, and first between any two second adjacent current transformers of electric property coupling is straight Second current transformer is connected by stream output port and the second DC output end mouth, and is readily achieved above-mentioned purpose.
Accompanying drawing explanation
Fig. 1 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device；
Fig. 2 is in one embodiment of the invention, the block chart of subordinate pusher side control module；
Fig. 3 is in one embodiment of the invention, the block chart of main pusher side control module；
Fig. 4 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device；
Fig. 5 is in one embodiment of the invention, the block chart of pusher side control module；
Fig. 6 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device:
Fig. 7 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device:
Fig. 8 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device；
Fig. 9 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device；
Figure 10 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device；
Figure 11 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device；
Figure 12 is in one embodiment of the invention, the circuit diagram of a kind of converter device.
Wherein, description of reference numerals is as follows:
1: wind electric converter device
10A-10C: net side converter
11A, 11B: subordinate pusher side control module
11C: main pusher side control module
12A-12C: pusher side current transformer
13A-13C: chopper circuit
140,142: dc bus
16: electrical network
160: transformator
18: rotor machine
200: current draw unit
202: the first converting units
204: the first computing units
206: voltage subtraction unit
208: pressure reduction computing unit
210: voltage control unit
212: the second computing units
214: the first current control units
216: the second current control units
218: the second converting units
300: current draw unit
302: the first converting units
304: the first computing units
306: the second computing units
308: the first current control units
310: the second current control units
312: the second converting units
41A-41C: pusher side control module
400,402,404,406: dc bus
500: current draw unit
502: the first converting units
504: the first computing units
506: the second computing units
508: the first current control units
510: the second current control units
512: the second converting units
6: wind electric converter device
7: wind electric converter device
70A-70B: net side converter
71A-71B: pusher side control module
72A-72B: pusher side current transformer
8: wind electric converter device
80A: net side converter
81A-81B: pusher side control module
82A-82B: pusher side current transformer
83A-83B: chopper circuit
9: wind electric converter device
90A-90B: net side converter
92A: pusher side current transformer
93A-93B: chopper circuit
10: wind electric converter device
100A-100B: net side converter
101A-101D: pusher side control module
102A-102D: pusher side current transformer
103A-103D: chopper circuit
1000-1004: dc bus
110A-110D: net side converter
1100-1104: dc bus
11: wind electric converter device
111A-111B: pusher side control module
112A-112B: pusher side current transformer
113A-113C: chopper circuit
12: converter device
120A-120B: the first pusher side current transformer
121A-121B: control module
122A-122B: the second pusher side current transformer
124: electric machine
126: rotor machine
Detailed description of the invention
Refer to Fig. 1.Fig. 1 is in one embodiment of the invention, the circuit of a kind of wind electric converter device 1 Figure.Wind electric converter device 1 comprises: net side converter 10A-10C, pusher side current transformer 12A-12C with And dc bus module, net side converter and pusher side current transformer are respectively arranged on the tower of wind power system and tower Lower part, wherein in the cabin of the tower top that pusher side current transformer 12A-12C is arranged at wind power system, net Side converter 10A-10C is arranged at the bottom of pylon or the outside of pylon, it is possible to decrease tower upper part and tower Transmit the cable cost needed for signal between lower part, but also the weight-bearing load on tower can be equalized.
In an embodiment, net side converter 10A-10C can comprise identical element.With net side converter As a example by 10A, in the present embodiment, net side converter is two level current transformers, and has and be electrically coupled to electricity Multiple net sides output port (such as 3 the net side output ports) N1-N3 of net 16, the first direct current input Port IN1 and the second direct-flow input end mouth IN2.In an embodiment, net side output port N1-N3 It is electrically coupled to electrical network 16 by transformator 160.
The net side converter that in net side converter 10A-10C, any two are adjacent passes through the first direct-flow input end mouth IN1 and the second direct-flow input end mouth IN2 is in series.As a example by net side converter 10A and 10B, net side The first direct-flow input end mouth of the second direct-flow input end mouth IN2 and net side converter 10B of current transformer 10A IN1 is in series.Similarly, the second direct-flow input end mouth IN2 of net side converter 10B and net side unsteady flow The first direct-flow input end mouth IN1 of device 10C is in series.
In an embodiment, the number of pusher side current transformer 12A-12C and the number of net side converter 10A-10C Mesh is equal.And pusher side current transformer 12A-12C can comprise identical element.With pusher side current transformer 12A it is Example, in the present embodiment, pusher side current transformer is two level current transformers, and have be electrically coupled to electromotor dress Put multiple pusher side input ports (such as 3 pusher side input ports) O1-O3, the first direct current output of 18 Port OUT1 and the second DC output end mouth OUT2.In an embodiment, rotor machine 18 is Many group magneto alternator devices of winding, electrical excitation synchronous power generator or influence generator device, The most often group winding comprises 3 winding (not shown)s.As a example by pusher side current transformer 12A, Yu Ben In embodiment, 3 winding correspondences respectively of one group of winding in rotor machine 18 are electrically coupled to pusher side Input port O1-O3.In an embodiment, pusher side current transformer can pass through the filtered electrical such as inductance or electric capacity Road (not shown) is coupled to rotor machine.
The pusher side current transformer that in pusher side current transformer 12A-12C, any two are adjacent passes through the first DC output end mouth OUT1 and the second DC output end mouth OUT2 is in series.As a example by pusher side current transformer 12A and 12B, The second DC output end mouth OUT2 of pusher side current transformer 12A is defeated with first direct current of pusher side current transformer 12B Go out port OUT1 to be in series.Similarly, the second DC output end mouth OUT2 of pusher side current transformer 12B It is in series with the first DC output end mouth OUT1 of pusher side current transformer 12C.
Dc bus module only comprises two dc bus 140 and 142 in the present embodiment, and corresponds to Two net side converter 10A and 10C being positioned at edge and two pusher side current transformer 12A being positioned at edge And 12C.Wherein, the first direct-flow input end mouth of dc bus 140 electric property coupling net side converter 10A The first DC output end mouth OUT1 of IN1 and pusher side current transformer 12A.The electrical coupling of dc bus 142 Connect the second direct-flow input end mouth IN2 and second direct current of pusher side current transformer 12C of net side converter 10C Output port OUT2.And centre is each to the first direct-flow input end mouth IN1, the first DC output end mouth Between OUT1 and the second direct-flow input end mouth IN2, the second DC output end mouth OUT2, then and be not provided with Dc bus.
In an embodiment, dc bus module also comprises bus capacitor C1-C6, is electrically coupled to respectively The first direct-flow input end mouth IN1 and the second direct-flow input end mouth IN2 of each net side converter 10A-10C Between, and the first DC output end mouth OUT1 of each pusher side current transformer 12A-12C and this second direct current defeated Go out to hold between OUT2 mouth, to provide the supporting role of the voltage of these ports.
In an embodiment, wind electric converter device 1 also comprises chopper circuit 13A, 13B and 13C, Chopper circuit 13A-13C is respectively arranged at bus capacitor C4 two ends, bus capacitor C5 two ends and bus Electric capacity C6 two ends, in order to carry out voltage equalizing protection to pusher side current transformer 12A-12C.With chopper circuit 13A As a example by, chopper circuit 13A includes controllable type power semiconductor switch, resistance and two diodes；Can The colelctor electrode of control type power semiconductor switch is connected to the negative electrode and the one of bus capacitor C4 of a diode End, the emitter stage of controllable type power semiconductor switch is electrically connected at the anode of this diode；The one of resistance End is connected to the emitter stage of controllable type power semiconductor switch, and the other end of resistance is connected to bus capacitor C4 The other end, another diodes in parallel is connected to the two ends of resistance.In other embodiments, wind-powered electricity generation unsteady flow Device device 1 also comprises chopper circuit and is respectively arranged at that to be electrically coupled to the first direct current of each net side converter defeated Bus capacitor two ends between inbound port and the second direct-flow input end mouth, and it is electrically coupled to each pusher side unsteady flow Bus capacitor two ends between the first DC output end mouth of device and this second DC output end mouth, in order to machine Side converter and net side converter carry out voltage equalizing protection.
Therefore, the wind electric converter device 1 of the present invention can be become by any two adjacent net sides of electric property coupling The first direct-flow input end mouth IN1 and the second direct-flow input end mouth IN2 between stream device 10A-10C will net side and become Stream device 10A-10C series connection, and the between any two adjacent pusher side current transformer 12A-12C of electric property coupling Pusher side current transformer 12A-12C is gone here and there by one direct current output port OUT1 and the second DC output end mouth OUT2 Connection.
Further, due to only at first direct-flow input end mouth IN1 and the pusher side of net side converter 10A Between the first DC output end mouth OUT1 of current transformer 12A, and second direct current of net side converter 10C It is female that direct current is set between the second DC output end mouth OUT2 of input port IN2 and pusher side current transformer 12C Line 140 and 142.Use pusher side current transformer coupled in series and the structure of net side converter coupled in series, make The big I of the DC voltage must being between net side converter or the pusher side current transformer at two edges is by connecting Net side converter and the number of pusher side current transformer adjust so that the design of wind electric converter device is more Flexibly, and then make the dc bus number between net side converter 10A-10C and pusher side current transformer 12A-12C Mesh and cost can decline to a great extent.
In an embodiment, the pusher side current transformer 12A-12C shown in Fig. 1 comprises a main pusher side unsteady flow Device, and multiple appurtenant machine side converter.In an embodiment, can set such as, but not limited to pusher side Current transformer 12C is as main pusher side current transformer, and pusher side current transformer 12A, 12B are then as subordinate pusher side Current transformer.
The control mode below putting up with main pusher side current transformer and appurtenant machine side converter is carried out in more detail Explanation.
Wind electric converter device 1 also comprises subordinate pusher side control module 11A and 11B, and main pusher side controls Module 11C, wherein subordinate pusher side control module 11A and 11B are respectively corresponding to above-mentioned subordinate pusher side unsteady flow Device 12A and 12B one of them, main pusher side control module 11C becomes corresponding to above-mentioned main pusher side Stream device 12C.
Subordinate pusher side control module 11A and 11B are in order to receive and according to corresponding appurtenant machine side converter 12A And three-phase subordinate input current amount I1-I2 of the pusher side input port O1-O3 of 12B, pusher side current transformer 12A And the subordinate direct current between the first DC output end mouth OUT1 and the second DC output end mouth OUT2 of 12B Voltage (that is, DC bus-bar voltage) Vdc_i, and mainly pusher side control module sends second come Axial general given current component iq_norm*, three-phase dependent voltage control signal V1-V2 is produced right to control Appurtenant machine side converter 12A and 12B answered.Wherein subordinate pusher side control module 11A and 11B according to from Belong to DC voltage amount Vdc_iProduce the second axial subordinate independently given current component iq_i*。
In an embodiment, subordinate pusher side control module 11A and 11B can have identical framework, below To illustrate with subordinate pusher side control module 11A for example.
Refer to Fig. 2.Fig. 2 is in one embodiment of the invention, the square of subordinate pusher side control module 11A Figure.Subordinate pusher side control module 11A comprises: current draw unit the 200, first converting unit 202, First computing unit 204, voltage subtraction unit 206, pressure reduction computing unit 208, voltage control unit 210, Second computing unit the 212, first current control unit the 214, second current control unit 216 and second Converting unit 218.
Current draw unit 200 is electrically coupled to the pusher side input port of appurtenant machine side converter 12A O1-O3, to extract three-phase subordinate input current amount I1.In an embodiment, three-phase subordinate input current Amount I1 comprises three component ia_i、ib_iAnd ic_i。
First converting unit 202 is by three component i of three-phase subordinate input current amount I1a_i、ib_iAnd ic_i Be converted to the first axial subordinate current component id_iWith the second axial subordinate current component iq_i.In an embodiment In, the first converting unit 202 comprises the dq rotational coordinates unit of d axle and q axle, the first axial subordinate electricity Flow component id_iWith the second axial subordinate current component iq_iLay respectively on dq rotating seat target d axle and q On axle.In an embodiment, the first axial subordinate current component id_iFor reactive current component, the second axle To subordinate current component iq_iFor active current.
First computing unit 204 is according to the first axial subordinate current component id_iIndependent with the first axial subordinate Given current component id_i* calculate and produce the first axial difference id_id, wherein the first axial subordinate is independently given Current component id_i* can be the setting value within subordinate pusher side control module 11A.
Voltage subtraction unit 206 extracts from first and second DC output end of appurtenant machine side converter 12A Subordinate DC voltage amount V between mouth OUT1 and OUT2dc_i.Pressure reduction computing unit 208 is straight according to subordinate Stream voltage Vdc_iWith reference voltage amount Vdc_refCalculate and produce voltage difference Vdc_d, wherein reference voltage Amount Vdc_refIt can be the setting value within subordinate pusher side control module 11A.Further, Control of Voltage Unit 210 is according to voltage difference Vdc_dProduce the second axial subordinate independently given current component iq_i*。
Second computing unit 212 is according to the second axial subordinate independently given current component iq_i*, second is axial Subordinate current component iq_iGeneral given current component i axial with secondq_norm*, generation second is calculated axial Difference iq_id。
First current control unit 214 is according to the first axial difference id_idProduce the first axial dependent voltage control Signal V processedd_i.Second current control unit 216 is according to the second axial difference iq_idProduce second axially from Belong to voltage control signal Vq_i.First axial dependent voltage is controlled by the second converting unit 218 the most further Signal Vd_iAnd second axial dependent voltage control signal Vq_iBe converted to three-phase dependent voltage control signal V1.In an embodiment, three-phase dependent voltage control signal V1 comprises three component Va_i、Vb_iAnd Vc_i.In an embodiment, three component Va_i、Vb_iAnd Vc_iPulse width modulation (Pulse can be respectively Width Modulation；PWM) signal.
Therefore, corresponding appurtenant machine side converter 12A is controlled by three-phase dependent voltage control signal V1 In thyristor open and close, so that appurtenant machine side converter 12A works in rectification State or inverter mode or stopped status.
It is noted that subordinate pusher side control module 11B also can be according to above-mentioned mechanism according to its three-phase subordinate Input current amount I2, the second axial general given current component iq_norm*And subordinate DC voltage amount Vdc_i Calculate and produce three-phase dependent voltage control signal V2.But, subordinate pusher side control module 11B and subordinate Between pusher side control module 11A first axially subordinate independently given current component id_i* and second axially from Belong to independent given current component iq_i* can be independent mutually.And the second axial general given current component iq_norm* Then it is applicable to all of subordinate pusher side control module 11A and 11B.
Fig. 3 is in one embodiment of the invention, the block chart of main pusher side control module 11C.Main pusher side Control module 11C comprises: current draw unit the 300, first converting unit the 302, first computing unit 304, second computing unit the 306, first current control unit the 308, second current control unit 310 with And second converting unit 312.
Current draw unit 300 is electrically coupled to the pusher side input port of main pusher side current transformer 12C O1-O3, to extract three-phase main input current amount I3.In an embodiment, the main input current of three-phase Amount I3 comprises three component ia_N、ib_NAnd ic_N。
First converting unit 302 is by three component i of main for three-phase input current amount I3a_N、ib_NAnd ic_N Be converted to the first axial main electrical current component id_NWith the second axial main electrical current component iq_N.Implement in one In example, the dp that the first converting unit 302 comprises d axle and q axle rotates coordinate, the first axial main electrical current Component id_NWith the second axial main electrical current component iq_NLay respectively on dq rotating seat target d axle and q On axle.In an embodiment, the first axial main electrical current component id_NFor reactive current component, the second axle To main electrical current component iq_NFor active current.
First computing unit 304 is according to the first axial main electrical current component id_NMain with first independent Given current component id_N* calculate and produce the first axial difference id_Nd。
Second computing unit 306 is according to the second axial main electrical current component iq_N, the second axial subordinate independent Given electric current total amount ∑ iq_i* general given current component i axial with secondq_norm* the second axial difference is produced iq_Nd.In an embodiment, the second axial subordinate independently given electric current total amount ∑ iq_i* it is all appurtenant machines The second axial subordinate of side control module 11A and 11B independently given current component iq_i* summation.
First current control unit 308 is according to the first axial difference id_NdProduce the first axial mains voltage control Signal V processedd_N.Second current control unit 310 is according to the second axial difference iq_NdProduce second axially to lead Want voltage control signal Vq_N.First axial mains voltage is controlled by the second converting unit 312 the most further Signal Vd_NAnd second axial mains voltage control signal Vq_NBe converted to three-phase mains voltage and control letter Number V3.In an embodiment, three-phase mains voltage control signal V3 comprises three component Va_N、Vb_N And Vc_N.In an embodiment, three component Va_N、Vb_NAnd Vc_NPulse width can be respectively Modulation (Pulse Width Modulation, PWM) signal.
Therefore, corresponding main pusher side current transformer 12C is controlled by three-phase mains voltage control signal V3 In power semiconductor switch so that main pusher side current transformer works in rectification state or inverter mode Or stopped status.
It is noted that main pusher side control module 11C and subordinate pusher side control module 11A and 11B Communication can be carried out each other by various possible forms and signal transmission standard.Main pusher side control module 11C sends the second axial general given current component i to subordinate pusher side control module 11A, 11Bq_norm*, It is only that subordinate pusher side control module 11A and 11B then send the second axial subordinate to main pusher side module 11C Vertical given current component iq_i*.In an embodiment, main pusher side control module 11C is by subordinate pusher side control Molding block 11A and 11B sends the second axial subordinate come independently given current component iq_i* fortune is summed up Calculate, produce the second axial subordinate independently given electric current total amount ∑ iq_i*。
Therefore, the wind electric converter device 1 of the present invention can be by the way of above-mentioned, by main pusher side control Molding block 11C and subordinate pusher side control module 11A and 11B to main pusher side current transformer 12C and Appurtenant machine side converter 12A and 12B effectively controls.
Refer to Fig. 4.Fig. 4 is in one embodiment of the invention, the circuit of a kind of wind electric converter device 4 Figure.Wind electric converter device 4 comprises: net side converter 10A-10C, pusher side current transformer 12A-12C with And dc bus module.It is similar to the wind electric converter device 1 shown in Fig. 1, wind electric converter device 4 Net side converter 10A-10C between be in series mutually, and go here and there the most mutually between pusher side current transformer 12A-12C Connection.The most wind electric converter device 1 with Fig. 1 of the element that wind electric converter device 4 is comprised is phase With.Therefore, below the element of only just tool diversity is described.
In the present embodiment, dc bus module comprises dc bus 400,402,404 and 406.Its In, dc bus 400 is electrically coupled to first direct-flow input end mouth IN1 and the machine of net side converter 10A The first DC output end mouth OUT1 of side converter 12A.Dc bus 402 is electrically coupled to net side and becomes The second DC output end mouth of the second direct-flow input end mouth IN2 and pusher side current transformer 12A of stream device 10A OUT2 (is equivalent to the first direct-flow input end mouth IN1 and pusher side current transformer 12B of net side converter 10B The first DC output end mouth OUT1).
Dc bus 404 is electrically coupled to second direct-flow input end mouth IN2 and the machine of net side converter 10B The second DC output end mouth OUT2 of side converter 12B (is equivalent to the first straight of net side converter 10C The first DC output end mouth OUT1 of stream input port IN1 and pusher side current transformer 12C).Dc bus 406 the second direct-flow input end mouth IN2 and pusher side current transformer 12C being electrically coupled to net side converter 10C The second DC output end mouth OUT2.
The control mode of pusher side current transformer 12A-12C will be described in detail below.
Wind electric converter device 4 also comprises pusher side control module 41A-41C, respectively corresponding to above-mentioned pusher side Current transformer 12A-12C one of them.Pusher side control module 41A-41C is in order to according to corresponding pusher side current transformer Three-phase input current amount I1-I3 of the pusher side input port O1-O3 of 12A-12C and second the most general is given Determine current component iq_norm*, produce three-phase voltage control signal V1-V3 and control corresponding pusher side current transformer 12A-12C.In an embodiment, pusher side control module 41A-41C can have identical framework, below To illustrate with pusher side control module 41A for example.
Refer to Fig. 5.Fig. 5 is in one embodiment of the invention, the block chart of pusher side control module 41A. Pusher side control module 41A comprises: current draw unit the 500, first converting unit 502, first calculates Unit the 504, second computing unit the 506, first current control unit the 508, second current control unit 510 And second converting unit 512.
Current draw unit 500 is electrically coupled to the pusher side input port O1-O3 of pusher side current transformer 12A, To extract three-phase input current amount I1.In an embodiment, three-phase input current amount I1 comprises three components ia_i、ib_iAnd ic_i。
First converting unit 502 is by three component i of three-phase input current amount I1a_i、ib_iAnd ic_iConversion It is the first axial current component id_iWith the second axial current component iq_i.In an embodiment, the first conversion The dq that unit 502 comprises d axle and q axle rotates coordinate, the first axial current component id_iAxial with second Current component iq_iLay respectively on dq rotating seat target d axle and on q axle.In an embodiment, the One axial current component id_iFor reactive current component, the second axial current component iq_iFor active current. In other embodiments, the first axial current component id_iCan be active current, second is the most electric Flow component iq_iIt can be reactive current component.
First computing unit 504 is according to the first axial current component id_iGiven electric current the most independent with first Component id_i* calculate and produce the first axial difference id_id。
Second computing unit 506 is according to the second axial current component iq_iGeneral given electric current axial with second Component iq_norm* the second axial difference i is calculatedq_id.In the present embodiment, the second axial general given electric current Component iq_norm* provided by outside main control computer (not shown), and can be by pusher side control module The second axial general given current component i that 41A will receive from external piloting control machineq_norm* pusher side is sent to Control module 41B and 41C.In the present embodiment, pusher side control module 41A and pusher side control module Mutual communication between 41B and 41C.In other embodiments, it is also possible to by pusher side control module 41B or 41C The second axial general given current component i is received from external piloting control machineq_normAnd be transferred to other * Pusher side control module.
First current control unit 508 is according to the first axial difference id_idProduce the first axial Control of Voltage letter Number Vd_i.Second current control unit 510 is according to the second axial difference iq_idProduce the second axial voltage control Signal V processedq_i.Second converting unit 512 is the most further by the first axial voltage control signal Vd_iAnd Second axial voltage control signal Vq_iBe converted to three-phase voltage control signal V1.In an embodiment, three Phase voltage control signal V1 comprises three component Va_i、Vb_iAnd Vc_i。
Therefore, the power in corresponding pusher side current transformer 12A is controlled by three-phase voltage control signal V1 Thyristor makes pusher side current transformer work in rectification state or inverter mode or stopped status. Therefore, the wind electric converter device 1 of the present invention can be by the way of above-mentioned, by pusher side control module Pusher side current transformer 12A-12C is effectively controlled by 41A-41C.
Refer to Fig. 6.Fig. 6 is in one embodiment of the invention, the circuit of a kind of wind electric converter device 6 Figure.Wind electric converter device 6 comprises: net side converter 10A-10B, pusher side current transformer 12A-12B with And dc bus module.It is similar to the wind electric converter device 1 shown in Fig. 1, wind electric converter device 6 Net side converter 10A-10B between be in series mutually, and go here and there the most mutually between pusher side current transformer 12A-12B Connection.The most wind electric converter device 1 with Fig. 1 of the element that wind electric converter device 6 is comprised is phase With, the number of only net side converter 10A-10B and pusher side current transformer 12A-12B is two.
In an embodiment, wind electric converter device comprises: net side converter 10A-10B, pusher side unsteady flow Device 12A-12B and dc bus module.It is similar to the wind electric converter device 6 shown in Fig. 6, wind-powered electricity generation It is in series mutually between the net side converter 10A-10B of converter device 6, and pusher side current transformer 12A-12B Between be in series the most mutually.
The most wind electric converter device 6 with Fig. 6 of the element that wind electric converter device 6 is comprised is phase With, only dc bus module also includes intermediate dc bus, and it is electrically coupled to net side converter 10A's Between the second DC output end mouth OUT2 of the second direct-flow input end mouth IN2 and pusher side current transformer 12A.
It is noted that except net side converter 10A-10B and pusher side current transformer shown in Fig. 1 and Fig. 6 12A-12B is respectively outside the example of three and two, and wind electric converter is installed in other embodiments also may be used Comprise net side converter and the pusher side current transformer of greater number, and effective percentage can be reached by above-mentioned mechanism Control.
Refer to Fig. 7.Fig. 7 is in one embodiment of the invention, the circuit of a kind of wind electric converter device 7 Figure.
Wind electric converter device 7 is similar to that the wind electric converter device 6 shown in Fig. 6, its apoplexy It is in series mutually between the net side converter 70A-70B that electric converter device 7 comprises, and the pusher side comprised becomes It is in series the most mutually between stream device 72A-72B.But, wind electric converter device 7 and wind electric converter device The difference of 6 is, its net side converter 70A-70B and pusher side current transformer 72A-72B is three level unsteady flows Device.Pusher side control module 71A-71B that wind electric converter device 7 is comprised then can be with aforesaid mechanism Pusher side current transformer 72A-72B is controlled.
Similarly, during the framework of this three level is also applicable to the wind electric converter device 1 of Fig. 1.
Refer to Fig. 8.Fig. 8 is in one embodiment of the invention, the circuit of a kind of wind electric converter device 8 Figure.
Wind electric converter device 8 comprises net side converter 80A, pusher side current transformer 82A-82B and direct current is female Wire module, is in series between the pusher side current transformer 82A-82B that wherein wind electric converter device 8 is comprised mutually. But, the net side converter 80A of wind electric converter device 8 is three-level current transformer, and pusher side current transformer It is two level current transformers.The second DC output end mouth OUT2 of pusher side current transformer 82A and pusher side current transformer The first DC output end mouth OUT1 of 82B is in series.In the present embodiment, dc bus module comprises two Individual dc bus 800 and 802, corresponding to pusher side current transformer 82A and 82B and net side converter 80A. Wherein dc bus 800 be electrically coupled to the first DC output end mouth OUT1 of pusher side current transformer 82A with And the first direct-flow input end mouth IN1 of net side converter 80A.Dc bus 802 is electrically coupled to pusher side The second direct current input of the second DC output end mouth OUT2 and net side converter 80A of current transformer 82B Port IN2.And the second DC output end mouth OUT2 and pusher side current transformer 82B of pusher side current transformer 82A The first DC output end mouth OUT1 and net side converter 80A neutral point input port IN0 between, then And it is not provided with dc bus.In the present embodiment, before pusher side control module 81A and 81B then can use Pusher side current transformer 82A and 82B is controlled by the mechanism stating Fig. 2 and Fig. 3.
In an embodiment, dc bus module also comprises bus capacitor C1-C4, is electrically coupled to respectively Between the first direct-flow input end mouth IN1 of net side converter 80A and neutral point input port IN0, and net Between the neutral point input port IN0 and the second direct-flow input end mouth IN2 of side converter, and pusher side unsteady flow Between the first DC output end mouth OUT1 and the second DC output end mouth OUT2 of device 82A and 82B, with The supporting role of the voltage of such port is provided.
In an embodiment, wind electric converter device 1 also comprises chopper circuit 83A and 83B, copped wave electricity Road 83A and 83B is respectively arranged at bus capacitor C3 two ends and bus capacitor C4 two ends, in order to machine Side converter 81A and 81B carries out voltage equalizing protection.
In an embodiment, it is similar to the wind electric converter device 8 shown in Fig. 8, but it is with Fig. 8's Difference is that dc bus module comprises dc bus 800,801 and 802.Wherein dc bus 800 electricity Property is coupled to the first of the first direct-flow input end mouth IN1 and pusher side current transformer 82A of net side converter 80A Between DC output end mouth OUT1.Dc bus 801 is electrically coupled to the neutral point of net side converter 80A Second DC output end mouth OUT2 and the pusher side current transformer of input port IN0 and pusher side current transformer 82A Between the first DC output end mouth OUT1 of 82B.Dc bus 802 is electrically coupled to net side converter 80A The second direct-flow input end mouth IN2 and pusher side current transformer 82B the second DC output end mouth OUT2 between. In the present embodiment, pusher side control module 81A and 81B then can use the mechanism of earlier figures 5 to pusher side Current transformer 82A and 82B is controlled.
Similarly, this asymmetric framework is also applicable in the wind electric converter device 1 of Fig. 1.
Refer to Fig. 9.Fig. 9 is in one embodiment of the invention, the circuit of a kind of wind electric converter device 9 Figure.
Wind electric converter device 9 comprises net side converter 90A-90B, pusher side current transformer 92A and direct current is female Wire module, is in series between the net side converter 90A-90B that wherein wind electric converter device 9 is comprised mutually. But, the pusher side current transformer 92A of wind electric converter device 9 is three-level current transformer, net side converter 90A-90B is two level current transformers.In the present embodiment, dc bus module comprises two dc bus 900 and 902 correspond to net side converter 90A and 90B and pusher side current transformer 92A.Wherein direct current is female Line 900 is electrically coupled to first direct-flow input end mouth IN1 and the pusher side current transformer of net side converter 90A Between the first DC output end mouth OUT1 of 92A.Dc bus 902 is electrically coupled to net side converter 90B The second direct-flow input end mouth IN2 and pusher side current transformer 92A the second DC output end mouth OUT2 between. And first direct current of the second direct-flow input end mouth IN2 and net side converter 90B of net side converter 90A is defeated Between the neutral point output port OUT0 of inbound port IN1 and pusher side current transformer, then it is not provided with dc bus.
In an embodiment, it is similar to the wind electric converter device 9 shown in Fig. 9, but it is with Fig. 9's Difference is that dc bus module comprises dc bus 900,901 and 902.Wherein dc bus 900 electricity Property is coupled to the first of the first direct-flow input end mouth IN1 and pusher side current transformer 92A of net side converter 90A Between DC output end mouth OUT1.It is second straight that dc bus 901 is electrically coupled to net side converter 90A The first direct-flow input end mouth IN1 of stream input port IN2 and net side converter 90B and pusher side current transformer Between the neutral point output port OUT0 of 92A.Dc bus 902 is electrically coupled to net side converter 90B The second direct-flow input end mouth IN2 and pusher side current transformer 92A the second DC output end mouth OUT2 between.
In an embodiment, dc bus module also comprises electric capacity C1-C4, is electrically coupled to respectively net side Between the first direct-flow input end mouth IN1 and the second direct-flow input end mouth IN2 of current transformer 90A, and net side Between the first direct-flow input end mouth IN1 and the second direct-flow input end mouth IN2 of current transformer 90B, and pusher side First DC output end mouth OUT1, neutral point output port OUT0 and second of current transformer 92A are straight Between stream output port OUT2, to provide the supporting role of the voltage of such port.
In an embodiment, wind electric converter device 1 also comprises chopper circuit 93A and 93B, copped wave electricity Road 93A and 93B is respectively arranged at bus capacitor C3 two ends and bus capacitor C4 two ends, in order to machine Side converter 92A carries out voltage equalizing protection.
Similarly, this asymmetric framework is also applicable in the wind electric converter device 1 of Fig. 1.
Figure 10 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device 10.Wind-powered electricity generation becomes Stream device device 10 comprises: net side converter 100A-100B, pusher side current transformer 102A-102D and straight Stream busbar modules.In an embodiment, net side converter 100A-100B can be three-level current transformer, And comprise identical element.Net side converter is electrically coupled to electrical network 16, and net side converter 100A-100B It is in series.The of the second direct-flow input end mouth IN2 and net side converter 100B of net side converter 100A One direct current input port IN1 is in series.
In an embodiment, pusher side current transformer 102A-102D can comprise identical element, can be two electricity Flat changer.Pusher side current transformer is electrically coupled to rotor machine 18.In pusher side current transformer 102A-102D Any two adjacent pusher side current transformers pass through the first DC output end mouth OUT1 and the second DC output end Mouth OUT2 is in series.
As a example by pusher side current transformer 102A and 102B, second DC output end of pusher side current transformer 102A The first DC output end mouth OUT1 of mouth OUT2 and pusher side current transformer 102B is in series.Similarly, First direct current of the second DC output end mouth OUT2 and pusher side current transformer 102C of pusher side current transformer 102B Output port OUT1 is in series.Similarly, the second DC output end mouth OUT2 of pusher side current transformer 102C It is in series with the first DC output end mouth OUT1 of pusher side current transformer 102D.
Dc bus module includes dc bus 1000-1004.Wherein, dc bus 1000 electric property coupling The first direct-flow input end mouth IN1 of net side converter 100A and first direct current of pusher side current transformer 102A Output port OUT1.The second direct current input of dc bus 1002 electric property coupling net side converter 100B The second DC output end mouth OUT2 of port IN2 and pusher side current transformer 102D.Dc bus 1001 The first of the central point input port IN0 and pusher side current transformer 102B of electric property coupling net side converter 100A Between DC output end mouth OUT1, dc bus 1003 is electrically coupled to the second of net side converter 100A Between the second DC output end mouth OUT2 of direct-flow input end mouth IN2 and pusher side current transformer 102B, and Dc bus 1004 is electrically coupled to the central point input port IN0 of net side converter 100B and becomes with pusher side Between the first DC output end mouth OUT1 of stream device 102D.
Therefore, pusher side control module 101A-101D that wind electric converter device 10 is comprised can use Pusher side current transformer 102A-102D is controlled by the mechanism of Fig. 5.
In another embodiment, dc bus module can only comprise two dc bus 1000 and 1002, And corresponding to two net side converter 100A and 100B being positioned at edge and two pusher sides being positioned at edge Current transformer 102A and 102D.And the central point input port IN0 of the net side converter 100A of centre with Between the first DC output end mouth OUT1 of pusher side current transformer 102B, the second of net side converter 100A is straight Between the second DC output end mouth OUT2 of stream input port IN2 and pusher side current transformer 102B, and net First DC output end of the central point input port IN0 and pusher side current transformer 102D of side converter 100B Between mouthful OUT1, then and be not provided with dc bus.
Pusher side control module 101A-101D that such wind electric converter device 10 is comprised, can use figure Pusher side current transformer 102A-102D is controlled by the mechanism of 2 and Fig. 3.
In an embodiment, dc bus module also comprises bus capacitor C1-C8, be electrically connected with in The first direct-flow input end mouth IN1 and neutral point input port IN0 of net side converter 100A-100B and in Between property point input port IN0 and the second direct-flow input end mouth IN2, and each pusher side current transformer 102A-102D The first DC output end mouth OUT1 and the second DC output end mouth OUT2 between, to provide these ports Voltage support effect.
In an embodiment, wind electric converter device 1 also comprises chopper circuit 103A to 103D, copped wave Circuit 103A to 103D is respectively arranged at bus capacitor C3, C4, C7 and C8 two ends, in order to machine Side converter 102A, 102B, 102C and 102D carry out voltage equalizing protection.
Figure 11 is in one embodiment of the invention, the circuit diagram of a kind of wind electric converter device 11.
Wind electric converter device 11 comprises: net side converter 110A-110D, pusher side current transformer 112A-112B And dc bus module.In an embodiment, net side converter 110A-110D comprises identical element, And net side converter can be two level current transformers.Net side converter 110A-110D is electrically coupled to electrical network 16, and any two adjacent net side converters are defeated by the first direct-flow input end mouth IN1 and the second direct current Inbound port IN2 is in series.As a example by net side converter 110A and 110B, net side converter 110A's The first direct-flow input end mouth IN1 of the second direct-flow input end mouth IN2 and net side converter 110B wants to connect.
Similarly, the second direct-flow input end mouth IN2 and net side converter 110C of net side converter 110B The first direct-flow input end mouth IN1 be in series.Similarly, second direct current of net side converter 110C is defeated The first direct-flow input end mouth IN1 of inbound port IN2 and net side converter 110D is in series.
In an embodiment, pusher side current transformer 112A-112B can comprise identical element, and pusher side unsteady flow Device can be three-level converter.Pusher side current transformer is electrically coupled to rotor machine 18.Pusher side current transformer The first DC output end mouth of the second DC output end mouth OUT2 and pusher side current transformer 112B of 112A OUT1 is in series.
Dc bus module includes dc bus 1100,1101,1102,1103 and 1104.Wherein, Dc bus 1100 is electrically coupled to first direct-flow input end mouth IN1 and the machine of net side converter 110A The first DC output end mouth OUT1 of side converter 112A.Dc bus 1102 electric property coupling net side becomes The second direct-flow input end mouth IN2 of stream device 110D and second DC output end of pusher side current transformer 112B Mouth OUT2.And dc bus 1101 is electrically coupled to the central point output port of pusher side current transformer 112A Between the first direct-flow input end mouth IN1 of OUT0 and net side converter 110B, dc bus 1103 is electrical Be coupled to pusher side current transformer 112A the second DC output end mouth OUT2 and net side converter 110B Between two direct-flow input end mouth IN2, and dc bus 1104 is electrically coupled to pusher side current transformer 112B's Between the first direct-flow input end mouth IN1 of central point output port OUT0 and net side converter 110D.
Therefore, pusher side control module 111A-111B that wind electric converter device 11 is comprised can use Pusher side current transformer 112A-112B is controlled by the mechanism of Fig. 5.
In another embodiment, dc bus module can only comprise two dc bus 1100 and 1102, And corresponding to two net side converter 110A and 110D being positioned at edge and two pusher sides being positioned at edge Current transformer 112A and 112B.And the central point output port OUT0 of the pusher side current transformer 112A of centre And between the first direct-flow input end mouth IN1 of net side converter 110B, the second of pusher side current transformer 112A is straight Between the second direct-flow input end mouth IN2 of stream output port OUT2 and net side converter 110B, Yi Jiji The first direct current input of the central point output port OUT0 and net side converter 110D of side converter 112B Between port IN1, then and be not provided with dc bus.
In an embodiment, wind electric converter device 1 also comprises chopper circuit 113A to 113D, copped wave Circuit 113A to 113D is respectively arranged at bus capacitor C3, C4, C7 and C8 two ends, in order to machine Side converter 112A and 112B carries out voltage equalizing protection.
Pusher side control module 111A-111B that such wind electric converter device 11 is comprised can use Fig. 2 And pusher side current transformer 112A-112B is controlled by the mechanism of Fig. 3.
Therefore, from the embodiment of Fig. 6 to Figure 11, the design of wind electric converter device can be answered with reality Demand, carry out elasticity adjustment, do not limited by a specific structure.
Figure 12 is in one embodiment of the invention, the circuit diagram of a kind of converter device 12.
Converter device 12 is similar to that the wind electric converter device 7 shown in Fig. 7, but current transformer It is in series mutually between the first pusher side current transformer 120A-120B that device 12 comprises, and is electrically connected at electricity Machine 124, and the most mutual between the second pusher side current transformer 122A-122B that converter device 12 comprises Series connection, and it is electrically connected at rotor machine 126.The converter device 12 of the present embodiment is applicable to first The occasion that the spacing of pusher side current transformer and the second pusher side current transformer is bigger, the current transformer of such as Ship Propeling Series-parallel system.Further, converter device 12 also comprises control module 121A and 121B, and it controls Pusher side current transformer 122A-122B is controlled by the mechanism that mechanism can use Fig. 5.Converter device 12 Also comprise chopper circuit, chopper circuit be respectively arranged at each first pusher side current transformer bus capacitor two ends and The bus capacitor two ends of each second pusher side current transformer.
Although this disclosure is disclosed above with embodiment, so it is not limited to this disclosure, Any those skilled in the art, without departing from the spirit and scope of this disclosure, various when making Changing and retouching, therefore the protection domain of this disclosure is when the scope defined depending on appended claims It is as the criterion.

Claims (32)

1. a wind electric converter device, comprises:
Multiple net side converters, respectively comprise be electrically coupled to multiple net sides output port of an electrical network, one One direct current input port and one second direct-flow input end mouth, and any two those adjacent net side converters This second direct-flow input end mouth of one of them and this first direct-flow input end mouth phase of another net side converter Series connection；
Multiple pusher side current transformers, respectively comprise be electrically coupled to a rotor machine multiple pusher side input ports, One first DC output end mouth and one second DC output end mouth, and any two adjacent those pusher sides changes One of them this first DC output end of this second DC output end mouth and another pusher side current transformer of stream device Mouth is in series；And
One direct current busbar modules, is electrically coupled between those net side converters and those pusher side current transformers.
2. wind electric converter device as claimed in claim 1, wherein those pusher side current transformers comprise a master Want pusher side current transformer and multiple appurtenant machine side converter.
3. wind electric converter device as claimed in claim 2, also comprises multiple subordinate pusher side control module, Respectively corresponding to those appurtenant machine side converters one of them, this subordinate pusher side control module each is in order to receive And according to should appurtenant machine side converter those pusher side input ports three-phase subordinate input current amount, One second axial general given current component with to should appurtenant machine side converter this first and this is second straight A subordinate DC voltage amount between stream output port, produces a three-phase dependent voltage control signal and controls correspondence This appurtenant machine side converter, this subordinate pusher side control module the most each is according to this corresponding subordinate direct current Voltage produces one second axial subordinate independently given current component.
4. wind electric converter device as claimed in claim 3, wherein those subordinate pusher side control modules are each Comprise:
One current draw unit, in order to extract this three-phase subordinate input current amount；
One first converting unit, in order to be converted to one first axial subordinate by this three-phase subordinate input current amount Current component and one second axial subordinate current component；
One first computing unit, in order to according to this first axial subordinate current component and one first axial subordinate Independent given current component calculates and produces one first axial difference；
One voltage subtraction unit, in order to extract this subordinate DC voltage amount；
One pressure reduction computing unit, in order to calculate generation according to this subordinate DC voltage amount with a reference voltage amount One voltage difference；
One voltage control unit, in order to produce this second axial subordinate independently given electricity according to this voltage difference Flow component；
One second computing unit, in order to according to this second axial subordinate current component, this is second the most general Given current component and this second axial subordinate independently given current component calculates and produces one second axial difference Value；
One first current control unit, produces one first axial dependent voltage control according to this first axial difference Signal processed；
One second current control unit, produces one second axial dependent voltage control according to this second axial difference Signal processed；And
One second converting unit, by this first axial dependent voltage control signal and this second axial subordinate Voltage control signal is converted to this three-phase dependent voltage control signal.
5. wind electric converter device as claimed in claim 4, wherein this first converting unit comprises a d One dq of axle and a q axle rotates coordinate, and this first axial subordinate current component is corresponding on this d axle Reactive current component, this second axial subordinate current component is corresponding to the active current on this q axle.
6. wind electric converter device as claimed in claim 3, also comprises a main pusher side control module, Corresponding to this main pusher side current transformer, in order to receive this second axle of those subordinate pusher side control modules output One second axial subordinate independently given electric current total amount is produced to subordinate independently given current component, and according to right Should mainly a three-phase main input current amount of those pusher side input ports of pusher side current transformer and this second Axial subordinate independently given electric current total amount produces a three-phase mains voltage control signal and controls the change of this main pusher side Stream device, wherein, this main pusher side control module produces this second axial general given current component.
7. wind electric converter device as claimed in claim 6, wherein this main pusher side control module is also wrapped Contain:
One current draw unit, in order to extract this three-phase main input current amount；
One first converting unit, main in order to main for this three-phase input current amount to be converted to one first Current component and one second axial main electrical current component；
One first computing unit, in order to main according to this first axial main electrical current component and one first Independent given current component calculates and produces one first axial difference；
One second computing unit, in order to according to this second axial main electrical current component, this second axial subordinate Independent given electric current total amount calculates with this second axial general given current component and produces one second axial difference Value；
One first current control unit, produces one first axial mains voltage control according to this first axial difference Signal processed；
One second current control unit, produces one second axial mains voltage control according to this second axial difference Signal processed；And
One second converting unit, by this first axial mains voltage control signal and this is second axially main Voltage control signal is converted to this three-phase mains voltage control signal.
8. wind electric converter device as claimed in claim 7, wherein this first converting unit comprises a d One dq of axle and a q axle rotates coordinate, and this first axial current component is idle corresponding on this d axle Current component, this second axial current component is corresponding to the active current on this q axle.
9. wind electric converter device as claimed in claim 6, wherein this main pusher side control module with should A little subordinate mutual communications of pusher side control module, this main pusher side control module controls to those subordinate pusher sides Module sends this second axial general given current component, and those subordinate pusher side control modules give this main machine Side form block sends this second axial subordinate independently given current component.
10. wind electric converter device as claimed in claim 1, wherein those net side converters comprise one First edge net side converter, one second edge net side converter and at least one mid-level net side converter, Those pusher side current transformers comprise one first edge pusher side current transformer, one second edge pusher side current transformer and extremely A few middle pusher side current transformer；
This dc bus module comprises one first edge dc bus and one second edge dc bus, should First edge dc bus is electrically coupled to this first direct-flow input end mouth of this first edge net side converter And between this first DC output end mouth of this first edge pusher side current transformer, this second edge dc bus It is electrically coupled to this second direct-flow input end mouth and this second edge machine of this second edge net side converter Between this second DC output end mouth of side converter.
11. wind electric converter devices as claimed in claim 10, wherein this dc bus module also comprises At least one intermediate dc bus, this intermediate dc bus be electrically coupled to this mid-level net side converter this This first DC output end mouth of one direct current input port and this middle pusher side current transformer.
12. wind electric converter devices as claimed in claim 1, wherein this dc bus module comprises many Individual dc bus, is electrically coupled to one of them this first direct current of those net side converters of correspondence respectively One of them the first DC output end mouth of input port and those pusher side current transformers, and those net sides become One of them one of them the second direct current of the second direct-flow input end mouth and those pusher side current transformers of stream device is defeated Go out port.
13. wind electric converter devices as claimed in claim 12, also comprise multiple pusher side control module, Those pusher side control modules each are in order to receive and according to those pusher side inputs of those pusher side current transformers corresponding One three-phase input current amount of mouth and one second axial general given current component, produce a three-phase electricity voltage-controlled Signal processed controls those corresponding pusher side current transformers.
14. wind electric converter devices as claimed in claim 13, wherein those pusher side control modules are respectively wrapped Contain:
One current draw unit, in order to extract this three-phase input current amount；
One first converting unit, in order to be converted to one first axial current component by this three-phase input current amount With one second axial current component；
One first computing unit, in order to the most independent given according to this first axial current component and one first Current component calculates and produces one first axial difference；
One second computing unit, in order to second axial general given with this according to this second axial current component Current component calculates and produces one second axial difference；
One first current control unit, produces one first axial Control of Voltage letter according to this first axial difference Number；
One second current control unit, produces one second axial Control of Voltage letter according to this second axial difference Number；And
One second converting unit, by this first axial voltage control signal and this second axial Control of Voltage Signal is converted to this three-phase voltage control signal.
15. wind electric converter devices as claimed in claim 14, wherein this first converting unit comprises one One dq of d axle and a q axle rotates coordinate, and this first axial current component is corresponding to the nothing on this d axle Merit current component, this second axial current component is corresponding to the active current on this q axle.
16. wind electric converter devices as claimed in claim 1, wherein this dc bus module also comprises Multiple bus capacitors, be electrically coupled to respectively those net side converters each this first direct-flow input end mouth and Between this second direct-flow input end mouth and respectively this first DC output end mouths of those pusher side current transformers and this Between two DC output end mouths.
17. wind electric converter devices as claimed in claim 1, those of wherein those net side converters Net side output port is electrically coupled to this electrical network by a transformator.
18. wind electric converter devices as claimed in claim 1, wherein this rotor machine comprises many groups Winding, this many groups winding each is electrically coupled to those pusher side input ports of those pusher side current transformers respectively.
19. wind electric converter devices as claimed in claim 1, wherein this rotor machine is that permanent magnetism is same Step rotor machine, electrical excitation synchronous power generator or influence generator device.
20. wind electric converter devices as claimed in claim 1, the wherein number of those pusher side current transformers Equal with the number of those net side converters.
21. wind electric converter devices as claimed in claim 1, those pusher side current transformers of each of which are Two level current transformers, those net side converters each are two level current transformers；Or each those pusher side unsteady flows Device can be three-level current transformer, and those net side converters each are three-level current transformer.
22. wind electric converter devices as claimed in claim 16, also comprise each and every one chopper circuits many, point It is not electrically coupled to the two ends of those bus capacitors each.
23. wind electric converter devices as claimed in claim 1, also comprise multiple chopper circuit, respectively It is electrically coupled to this first DC output end mouth and this second DC output end mouth of those pusher side current transformers Between.
24. 1 kinds of wind electric converter devices, comprise:
N net side converter, respectively comprise be electrically coupled to multiple net sides output port of an electrical network, one One direct current input port, a neutral point input port and one second direct-flow input end mouth；
2n pusher side current transformer, respectively comprises the multiple pusher side inputs being electrically coupled to a rotor machine Mouth, one first DC output end mouth and one second DC output end mouth, and 2n-1 pusher side current transformer This first DC output end mouth of this second DC output end mouth and 2n pusher side current transformer is in series；And
One direct current busbar modules, is electrically coupled between this n net side converter and this 2n pusher side current transformer；
Wherein n >=1.
25. wind electric converter devices as claimed in claim 24, when the number of net side converter is n >=2 Time, the second direct-flow input end mouth of the (n-1)th net side converter and the first direct current of the n-th net side converter are defeated Inbound port is in series.
26. wind electric converter devices as claimed in claim 24, wherein said dc bus module comprises 2n+1 dc bus, wherein, 2n-1 dc bus is electrically coupled to being somebody's turn to do of the n-th net side converter Between this first DC output end mouth of the first direct-flow input end mouth and this 2n-1 pusher side current transformer, 2n Dc bus is electrically coupled to this neutral point input port and the 2n-1 pusher side unsteady flow of the n-th net side converter Between this second DC output end mouth of device and the first DC output end mouth of 2n pusher side current transformer, the 2n+1 dc bus is electrically coupled to this second direct-flow input end mouth and 2n machine of the n-th net side converter Between the second DC output end mouth of side converter.
27. wind electric converter devices as claimed in claim 24, this net side converter is three level unsteady flows Device, this pusher side current transformer is two level current transformers.
28. 1 kinds of wind electric converter devices, comprise:
2n net side converter, respectively comprise be electrically coupled to multiple net sides output port of an electrical network, one One direct current input port and one second direct-flow input end mouth, and this of 2n-1 net side converter is second straight This first direct-flow input end mouth of stream input port and 2n net side converter is in series；
N pusher side current transformer, respectively comprise be electrically coupled to a rotor machine multiple pusher side input ports, One first DC output end mouth, a neutral point output port and one second DC output end mouth；And
One direct current busbar modules, is electrically coupled between this 2n net side converter and this pusher side current transformer；
Wherein n >=1.
29. wind electric converter devices as claimed in claim 28, when the number of pusher side current transformer is n >=2 Time, the second DC output end mouth of the (n-1)th pusher side current transformer and the first direct current of the n-th pusher side current transformer are defeated Go out port to be in series.
30. wind electric converter devices as claimed in claim 28, wherein said dc bus module comprises 2n+1 dc bus, wherein, 2n-1 dc bus is electrically coupled to 2n-1 net side converter Between this first DC output end mouth of this first direct-flow input end mouth and the n-th pusher side current transformer, 2n direct current Bus is electrically coupled to this second direct-flow input end mouth and the side change of 2n net of 2n-1 net side converter Between this first direct-flow input end mouth and this neutral point output port of the n-th pusher side current transformer of stream device, the 2n+1 dc bus is electrically coupled to this second direct-flow input end mouth and n-th machine of 2n net side converter Between this second DC output end mouth of side converter.
31. wind electric converter devices as claimed in claim 28, this net side converter is two level unsteady flows Device, this pusher side current transformer is three-level current transformer.
32. 1 kinds of wind electric converter devices, comprise:
Multiple first pusher side current transformers, respectively comprise the multiple motor sides output being electrically coupled to an electric machine Port, one first direct-flow input end mouth and one second direct-flow input end mouth, and any two adjacent those First pusher side current transformer one of them this second direct-flow input end mouth and another the first pusher side current transformer should First direct-flow input end mouth is in series；
Multiple second pusher side current transformers, respectively comprise the multiple generator side being electrically coupled to a rotor machine Input port, one first DC output end mouth and one second DC output end mouth, and any two are adjacent One of them this second DC output end mouth and another the second pusher side current transformer of those the second pusher side current transformers This first DC output end mouth be in series；And
One direct current busbar modules, is electrically coupled to those the first pusher side current transformers and those the second pusher side unsteady flows Between device.
CN201510094313.2A 2014-09-05 2015-03-03 Wind electric converter device and converter device Active CN105990846B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN201810895088.6A CN109038639B (en) 2014-09-05 2015-03-03 Wind power converter device and converter device
US14/794,844 US9768706B2 (en) 2014-09-05 2015-07-09 Wind power converter device and converter device
US15/674,512 US10027239B2 (en) 2014-09-05 2017-08-10 Wind power converter device and converter device
US16/902,934 USRE49768E1 (en) 2014-09-05 2020-06-16 Wind power converter device and converter device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410452474X 2014-09-05
CN201410452474 2014-09-05

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201810895088.6A Division CN109038639B (en) 2014-09-05 2015-03-03 Wind power converter device and converter device

Publications (2)

Publication Number Publication Date
CN105990846A true CN105990846A (en) 2016-10-05
CN105990846B CN105990846B (en) 2018-10-09

Family

ID=57039166

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201510094313.2A Active CN105990846B (en) 2014-09-05 2015-03-03 Wind electric converter device and converter device
CN201810895088.6A Active CN109038639B (en) 2014-09-05 2015-03-03 Wind power converter device and converter device

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201810895088.6A Active CN109038639B (en) 2014-09-05 2015-03-03 Wind power converter device and converter device

Country Status (2)

Country Link
US (1) USRE49768E1 (en)
CN (2) CN105990846B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022012006A1 (en) * 2020-07-15 2022-01-20 上海交通大学 Modular smart combined wind power converter and control method therefor
US11476671B2 (en) 2019-10-22 2022-10-18 Delta Electronics (Shanghai) Co., Ltd. Wind power converting device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110120681A (en) * 2019-04-04 2019-08-13 浙江日风电气股份有限公司 A kind of high-power converter circuit topology for offshore wind farm
CN112701717A (en) * 2019-10-22 2021-04-23 台达电子企业管理（上海）有限公司 Wind power converter device

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5083039B1 (en) * 1991-02-01 1999-11-16 Zond Energy Systems Inc Variable speed wind turbine
US5644483A (en) * 1995-05-22 1997-07-01 Lockheed Martin Energy Systems, Inc. Voltage balanced multilevel voltage source converter system
US6166513A (en) * 1999-04-09 2000-12-26 Robicon Corporation Four-quadrant AC-AC drive and method
WO2005046044A1 (en) 2003-11-06 2005-05-19 Varispeed Electric Motors Pty Ltd A variable speed power generator having two induction generators on a common shaft
DE102005025422A1 (en) * 2005-06-02 2006-12-21 Siemens Ag Three-phase inverter, has partial power converters placed in electrically conductive connection with windings and with DC-sided connectors and electrically connected in series, where each converter is frequency pulsed power converter
CN1983785A (en) 2005-12-15 2007-06-20 中国科学院电工研究所 Controller of exciting power-supply net sided converter for double-feedback speed-variable frequency-constant wind-driven generator
US7573732B2 (en) * 2007-05-25 2009-08-11 General Electric Company Protective circuit and method for multi-level converter
IT1397013B1 (en) * 2009-11-03 2012-12-20 Trevi Energy S P A CONTROL SYSTEM OF WIND POWER PLANT WITH AIRCONDITIONER EQUIPPED WITH MODULAR DIRECT CURRENT CONVERTERS.
CN101826804B (en) 2010-05-21 2012-06-20 哈尔滨工业大学 Control method of parallel-type permanent magnet direct-drive wind power converter in wind driven generation system
US8476859B2 (en) * 2010-09-30 2013-07-02 Rockwell Automation Technologies, Inc. DC power for SGCT devices using a high frequency current loop with multiple current transformers
ES2403551B1 (en) * 2010-12-22 2014-04-25 Gamesa Innovation & Technology S.L. PROVISION OF CONVERTERS OR INVESTORS MULTINIVEL POWER THAT USES BRIDGES H.
TWI443949B (en) 2011-08-11 2014-07-01 Univ Far East Single - Phase AC - DC Power Converter with Electrical Isolation
CN102983587B (en) * 2011-09-07 2015-01-07 台达电子企业管理（上海）有限公司 Wind power generation system with overspeed protection and operation method thereof
US8472219B2 (en) 2011-09-14 2013-06-25 General Electric Company Method and systems for converting power
CN103208960A (en) * 2012-01-16 2013-07-17 台达电子企业管理（上海）有限公司 Excitation control circuit and electric excitation wind power system thereof
CN103208812B (en) * 2012-01-17 2015-04-29 台达电子企业管理（上海）有限公司 Wind power converter structure and wind power generation system comprising same
CN103312184B (en) * 2012-03-09 2015-09-16 台达电子工业股份有限公司 A kind of power circuit, converter structure and wind generator system thereof
US9041234B2 (en) * 2012-03-26 2015-05-26 Rockwell Automation Technologies, Inc. Double fed induction generator (DFIG) converter and method for improved grid fault ridethrough
CN103378783A (en) 2012-04-16 2013-10-30 台达电子企业管理（上海）有限公司 Excitation control circuit, excitation control method, and electrical excitation wind power system of excitation control circuit
CN103378742B (en) * 2012-04-18 2016-02-03 台达电子企业管理（上海）有限公司 Converter system and control method thereof
JP5664589B2 (en) * 2012-04-20 2015-02-04 株式会社安川電機 Power regeneration converter and power converter
CN103580494B (en) * 2012-07-19 2016-04-20 台达电子工业股份有限公司 Converter system
CN102882231A (en) * 2012-09-21 2013-01-16 上海交通大学 Loop current control method for current transformer multi-unit parallel connection system
DK2713468T3 (en) * 2012-09-28 2019-11-04 Ge Energy Power Conversion Technology Ltd Electrical energy transfer systems
CA2792602A1 (en) 2012-10-19 2014-04-19 Pl Technologies Ag Stabilized high-voltage power supply
CN102946118A (en) * 2012-11-21 2013-02-27 东南大学 Multi-stator winding permanent magnet synchronous wind power generation system and control method thereof
KR101410731B1 (en) * 2013-02-13 2014-06-24 한국전기연구원 Method for suppressing circulating currents from modular multi-level converter based high voltage direct-current system
US9712070B2 (en) * 2013-06-04 2017-07-18 Toshiba Mitsubishi-Electric Industrial Systems Corporation Power conversion device
CN103441530A (en) * 2013-09-06 2013-12-11 南车株洲电力机车研究所有限公司 Wind power generating device group high and low voltage crossing device, system and method
CN103606926A (en) 2013-11-22 2014-02-26 国家电网公司 High-capacity unified power quality conditioner based on chain structure and control method thereof
WO2015108614A1 (en) * 2014-01-15 2015-07-23 Abb Technology Ag Modular, multi-channel, interleaved power converters
US9768706B2 (en) * 2014-09-05 2017-09-19 Delta Electronics, Inc. Wind power converter device and converter device
CN104533725B (en) * 2015-01-19 2017-09-15 台达电子工业股份有限公司 Wind generator system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11476671B2 (en) 2019-10-22 2022-10-18 Delta Electronics (Shanghai) Co., Ltd. Wind power converting device
WO2022012006A1 (en) * 2020-07-15 2022-01-20 上海交通大学 Modular smart combined wind power converter and control method therefor

Also Published As

Publication number Publication date
CN105990846B (en) 2018-10-09
USRE49768E1 (en) 2023-12-26
CN109038639B (en) 2020-10-13
CN109038639A (en) 2018-12-18

Similar Documents

Publication Publication Date Title
CN101345423B (en) 5-power level H-bridge cascade connection back-to-back current transformer used for wind power generation system
CN104104247B (en) Method and apparatus for converting direct current/alternating current power of bridge type
CN106374830B (en) High-power high step-up ratio photovoltaic DC converter device and control method
CN105140966B (en) A kind of modulation strategy for suppressing non-isolation type photovoltaic system leakage current
CN100452641C (en) Clamping five level variable frequency driving device utilizing internal and external ring double-group rectifier bridge
CN106452147B (en) A kind of topology of oneself equilibrium of the MMC module capacitance voltage of three-phase symmetrical
CN102170241A (en) System and method for a single stage power conversion system
CN105990846A (en) Wind power converter device and converter device
CN106712107B (en) A kind of optimization power distribution method applied to grid-connected converter parallel running
CN102856909A (en) Unloading system and modularized multi-level wind power converter adopting same
CN105656330A (en) Capacitance voltage balancing strategy suitable for high level modular multilevel converter
CN202749815U (en) Unloading device and modularized multi-level wind power converter using the same
CN106711992B (en) Topological structure of permanent magnet direct current fan cluster system
CN107895962A (en) A kind of current source type HVDC transmission system and its operation method
CN104601001A (en) Current conversion device and current conversion system for wind generating set
EP3117500B1 (en) Method and apparatus for obtaining electricity from offshore wind turbines
CN111478616A (en) Subway traction power supply system and bidirectional converter device
CN106356889A (en) Permanent magnet wind power generator set
CN109217753B (en) Topological structure of alternating current-direct current power generation system and control method
CN204258328U (en) A kind of potential potential induction attenuation circuit of anti-multi-machine parallel connection photovoltaic generating system and regulator
CN204089729U (en) A kind of photovoltaic DC-to-AC converter and photovoltaic generating system
CN106411249A (en) Photovoltaic power generation system and control method thereof
CN104767227A (en) Novel bus power flow controller for smart distribution grid power transformation device
CN210536303U (en) Wind power converter device
CN205304269U (en) Direct current pressure increasing system of grid -connected PV electricity generation

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant