CN202696147U - Simulating device of VQ type permanent-magnet direct-driven wind generator set - Google Patents
Simulating device of VQ type permanent-magnet direct-driven wind generator set Download PDFInfo
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- CN202696147U CN202696147U CN2012201294102U CN201220129410U CN202696147U CN 202696147 U CN202696147 U CN 202696147U CN 2012201294102 U CN2012201294102 U CN 2012201294102U CN 201220129410 U CN201220129410 U CN 201220129410U CN 202696147 U CN202696147 U CN 202696147U
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- controller
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- synchronous motor
- permagnetic synchronous
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Abstract
The utility model discloses a simulating device of a VQ type permanent-magnet direct-driven wind generator set. The simulating device comprises a permanent-magnet synchronous generator, a wind generator assembly, a generator-side converter, and a grid-side converter. The wind generator assembly drives a rotor of the permanent-magnet synchronous generator. The generator-side converter and the permanent-magnet synchronous generator form a closed loop. The generator-side converter detects the voltage and power of the permanent-magnet synchronous generator and adjusts generator-side current based on the voltage and power of the permanent-magnet synchronous generator. The grid-side converter and a grid form a closed loop. The grid-side converter detects the voltage and power of the grid and adjusts grid-side current based on the voltage and power of the grid. The simulating device of the VQ type permanent-magnet direct-driven wind generator set is capable of effectively simulating the control modes of the grid-side converter controlling the grid-side reactive power and direct current bus voltage and the generator-side converter controlling the generator active power and terminal voltage.
Description
Technical field
The utility model relates to the wind power equipment field, relates in particular to a kind of simulator of VQ type permanent magnetism direct drive wind group of motors.
Background technology
1891, First test blower fan was born, and this is indicating the beginning of wind power generation.1897, blower fan system formally was used for commercialization.The wind power generation slower development is until the world oil crisis of eighties of last century seventies just makes wind power generation really developed but after this.The developed country such as the U.S., West Europe is the energy of seeking substitute fossil fuels, a large amount of funds have been dropped into, utilize the new technology development modern wind generating set in the fields such as computer, aerodynamics, structural mechanics and the mechanics of materials, the new period of having started Wind Power Utilization.
Nearly 20 years, developed country obtained huge achievement in technical field of wind power generation.The wind turbine generator single-machine capacity that is incorporated into the power networks has developed into MW class from initial tens of multikilowatts; Control mode develops to full blade displacement and variable speed constant frequency from single fixed pitch stall control, operational reliability is from 50% of early 1980s, bring up to more than 98%, and all can realize centralized control and remote control in the wind turbine generator of wind energy turbine set operation.
Since nineteen ninety, the installed capacity of Global Wind Power Industry accumulative total increases every year on average above 20%, and only the newly-increased installation in the world in 2005 just reaches 11769MW, and its growth rate has surpassed the speed that any electric power increases.
The wind-powered electricity generation unit has polytype, and wind-powered electricity generation unit commonly used comprises: based on the constant speed wind-powered electricity generation unit of common asynchronous moter, based on the variable-speed wind-power unit of doubly fed induction generator with based on the direct-driving type variable-speed wind-power unit of permagnetic synchronous motor.
With regard to the application area of wind-powered electricity generation, can be divided into land wind-powered electricity generation and offshore wind farm.Land wind-powered electricity generation requires to have large stretch of open place to build extension set, for the difficult popularization in densely populated coastal area.And the sea turn band just is adapted at the coastal area application.The characteristics of offshore wind farm are that wind speed changes greatly, low wind speed situation is many, to the stability of unit and fault ride-through capacity requirement better.In blower fan commonly used, relatively be suitable at sea using based on the direct-driving type variable-speed wind-power unit of permagnetic synchronous motor.
The major advantage of permanent magnet direct-drive blower fan is without step-up gear, has higher reliability and efficient; The incision wind speed is low, more can adapt to low wind speed operation; Adopt full power convertor, the impact of being incorporated into the power networks is little, has low voltage ride-through capability.The shortcoming of permanent magnet direct-drive blower fan is that the total power converter is complicated, and test job is loaded down with trivial details before the installation.
The utility model content
The utility model is intended to disclose a kind of simulator of permanent magnetism direct drive wind group of motors.
According to an embodiment of the present utility model, a kind of simulator of VQ type permanent magnetism direct drive wind group of motors is proposed, comprise permagnetic synchronous motor, fan assembly, motor side current transformer and grid side current transformer.Fan assembly drives the rotor of permagnetic synchronous motor.Motor side current transformer and permagnetic synchronous motor form closed loop, and the motor side current transformer detects the voltage of permagnetic synchronous motor and power and according to the voltage of permagnetic synchronous motor and the electric current of power adjustments motor side.Grid side current transformer and electrical network form closed loop, the voltage of grid side current transformer detection of grid and power and according to the voltage of electrical network and the electric current of power adjustments grid side.
In one embodiment, fan assembly comprises that wind wheel, axle with blade are controller and pitch controller.Axle is that controller is connected between wind wheel and the permagnetic synchronous motor, and axle is the rotating speed that controller is regulated the wind wheel output shaft.Pitch controller is connected to wind wheel and permagnetic synchronous motor, and pitch controller receives the feedback signal of permagnetic synchronous motor, regulates the angle of the blade of wind wheel.Pitch controller comprises rotational speed governor and servo controller, and rotational speed governor is connected to the feedback signal that permagnetic synchronous motor receives permagnetic synchronous motor, and servo controller is connected to rotational speed governor, and servo controller is regulated the angle of the blade of wind wheel.
In one embodiment, the motor side current transformer comprises the first outer ring controller, the first interior ring controller, the first coordinate converter, the first gate pole controller and the first current transformer.The first outer ring controller gathers front voltage and the front end power of permagnetic synchronous motor, and the first outer ring controller generates the first outer shroud control signal according to front voltage and front end power.The first interior ring controller is connected to the first outer ring controller, the first interior ring controller gathers rear terminal voltage and the rear end power of permagnetic synchronous motor, and the first interior ring controller produces the first interior ring control signal according to the first outer shroud control signal, rear terminal voltage and rear end power.The first coordinate converter is connected to the first interior ring controller, and the first coordinate converter receives the first interior ring control signal as input, and output is through the phasor coordinate of the first interior ring control signal of coordinate transform.The first gate pole controller is connected to the first coordinate converter, and the first gate pole controller produces pulse control signal according to described phasor coordinate.The first current transformer is connected to the first gate pole controller, regulates duty ratio according to pulse control signal.
In one embodiment, also comprise the maximal power tracing device, the maximal power tracing device is connected between permagnetic synchronous motor and the first outer ring controller, and the maximum power that the maximal power tracing device gathers permagnetic synchronous motor offers the first outer ring controller as front end power.
In one embodiment, the grid side current transformer comprises the second outer ring controller, the second interior ring controller, the second coordinate converter, the second gate pole controller and the second current transformer.The second outer ring controller gathers front voltage and the front end power of electrical network, and the second outer ring controller generates the second outer shroud control signal according to front voltage and front end power.The second interior ring controller is connected to the second outer ring controller, and the second interior ring controller gathers rear terminal voltage and the rear end power of electrical network, and the second interior ring controller produces the second interior ring control signal according to the second outer shroud control signal, rear terminal voltage and rear end power.The second coordinate converter is connected to the second interior ring controller, and the second coordinate converter receives the second interior ring control signal as input, and output is through the phasor coordinate of the second interior ring control signal of coordinate transform.The second gate pole controller is connected to the second coordinate converter, and the second gate pole controller produces pulse control signal according to described phasor coordinate.The second current transformer is connected to the second gate pole controller, regulates duty ratio according to pulse control signal.
The simulator of VQ type permanent magnetism direct drive wind group of motors of the present utility model can be to grid side current transformer control grid side idle and DC bus-bar voltage, motor side current transformer control motor control mode meritorious and set end voltage is carried out effective emulation.
Description of drawings
Fig. 1 has disclosed the structural diagrams intention according to the simulator of the VQ type permanent magnetism direct drive wind group of motors of an embodiment of the present utility model.
Embodiment
The permanent magnetism direct drive wind group of motors mainly is comprised of the two large divisions.A part is the wind-powered electricity generation unit, and the wind-powered electricity generation unit comprises fan assembly and permagnetic synchronous motor.Another part full power convertor.Full power convertor mainly comprises motor side current transformer and grid side current transformer.Permagnetic synchronous motor is driven by fan assembly and sends low frequency ac, and the motor side current transformer is transformed to direct current with low frequency ac and sends into DC link, by the grid side current transformer direct current is converted to the alternating current feed-in electrical network of fixed frequency again.The core parts of permanent magnetic direct-drive fan are the grid side current transformers, on the one hand with the meritorious electrical network that is delivered to of motor, the large capacity that can take full advantage of on the other hand the grid side current transformer provides reactive power support to electrical network to the grid side current transformer based on the vector control strategy of PQ decoupling zero.
Divide by full power convertor Comprehensive Control mode, mainly contain following two kinds, a kind of control mode that adopts meritorious idle, the motor side current transformer control set end voltage of grid side current transformer control grid side and DC bus-bar voltage is called the PQ type.Another kind of employing grid side current transformer control grid side is idle and DC bus-bar voltage, motor side current transformer control motor are gained merit and the control mode of set end voltage, is called the VQ type.
The utility model proposes a kind of simulator of VQ type permanent magnetism direct drive wind group of motors, Fig. 1 has disclosed the structural diagrams intention according to an embodiment.The simulator 100 of this VQ type permanent magnetism direct drive wind group of motors comprises as shown in Figure 1: permagnetic synchronous motor 102, fan assembly 104, motor side current transformer 106 and grid side current transformer 108.
Fan assembly 104 drives the rotor of permagnetic synchronous motor 102.In the embodiment shown in fig. 1, fan assembly 104 comprises that wind wheel 140, axle with blade are controller 142 and pitch controller 144.Axle is that controller 142 is connected between wind wheel 140 and the permagnetic synchronous motor 102, and axle is the rotating speed that controller 142 is regulated the wind wheel output shaft.Pitch controller 144 is connected to wind wheel 140 and permagnetic synchronous motor 102, and pitch controller 144 receives the feedback signal of permagnetic synchronous motor 102, the angle of regulating the blade of wind wheel 140.In the embodiment shown in fig. 1, pitch controller 144 comprises rotational speed governor 145 and servo controller 146, rotational speed governor 145 is connected to the feedback signal that permagnetic synchronous motor 102 receives permagnetic synchronous motor 102, servo controller 146 is connected to rotational speed governor 145, the angle that servo controller 146 is regulated the blade of wind wheel 140.
Motor side current transformer 106 forms closed loops with permagnetic synchronous motor 102, and motor side current transformer 106 detects the voltage of permagnetic synchronous motors 102 and power and according to the voltage of permagnetic synchronous motor 102 and the electric current of power adjustments motor side.In the embodiment shown in fig. 1, motor side current transformer 106 comprises the first outer ring controller 160, the first interior ring controller 162, the first coordinate converter 164, the first gate pole controller 166 and the first current transformer 168.The first outer ring controller 160 gathers front voltage and the front end power of permagnetic synchronous motor 102, and the first outer ring controller 160 generates the first outer shroud control signal according to front voltage and front end power.In the embodiment shown in fig. 1, the simulator 100 of this VQ type permanent magnetism direct drive wind group of motors also comprises maximal power tracing device 110.Maximal power tracing device 110 is connected between permagnetic synchronous motor 102 and the first outer ring controller 160, and the maximum power that maximal power tracing device 110 gathers permagnetic synchronous motor 102 offers the first outer ring controller as front end power.The first interior ring controller 162 is connected to the first outer ring controller 160, the first interior ring controller 162 gathers rear terminal voltage and the rear end power of permagnetic synchronous motor 102, and the first interior ring controller 162 produces the first interior ring control signal according to the first outer shroud control signal, rear terminal voltage and rear end power.The first coordinate converter 164 is connected to the first interior ring controller 162, the first coordinate converters 164 and receives the first interior ring control signal as input, and 164 outputs of the first coordinate converter are through the phasor coordinate of the first interior ring control signal of coordinate transform.The first gate pole controller 166 is connected to the first coordinate converter 164, the first gate pole controllers 166 and produces pulse control signal according to phasor coordinate.In one embodiment, pulse control signal is pulse-width modulation control signal (pwm signal).The first current transformer 168 is connected to the first gate pole controller 164, the first current transformers 168 and regulates duty ratio according to pulse control signal, recently realizes the unsteady flow of motor side by regulating duty.
Grid side current transformer 108 forms closed loops with electrical network 200, the voltage of grid side current transformer 108 detection of grid 200 and power and according to the voltage of electrical network 200 and the electric current of power adjustments grid side.In the embodiment shown in fig. 1, motor side current transformer 108 comprises the second outer ring controller 180, the second interior ring controller 182, the second coordinate converter 184, the second gate pole controller 186 and the second current transformer 188.The second outer ring controller 180 gathers front voltage and the front end power of electrical network 200, and the second outer ring controller 180 generates the second outer shroud control signal according to front voltage and front end power.The second interior ring controller 182 is connected to the second outer ring controller 180, the second interior ring controller 182 gathers rear terminal voltage and the rear end power of electrical network 200, and the second interior ring controller 182 produces the second interior ring control signal according to the second outer shroud control signal, rear terminal voltage and rear end power.The second coordinate converter 184 is connected to the second interior ring controller 182.The second coordinate converter 184 receives the second interior ring control signal as input, and 184 outputs of the second coordinate converter are through the phasor coordinate of the second interior ring control signal of coordinate transform.The second gate pole controller 186 is connected to the second coordinate converter 184, the second gate pole controllers 186 and produces pulse control signal according to phasor coordinate.In one embodiment, pulse control signal is pulse-width modulation control signal (pwm signal).The second current transformer 188 is connected to the second gate pole controller 186, the second current transformers 188 and regulates duty ratio according to pulse control signal.
The simulator of VQ type permanent magnetism direct drive wind group of motors of the present utility model can be to grid side current transformer control grid side idle and DC bus-bar voltage, motor side current transformer control motor control mode meritorious and set end voltage is carried out effective emulation.
Claims (6)
1. the simulator of a VQ type permanent magnetism direct drive wind group of motors is characterized in that, comprising:
Permagnetic synchronous motor;
Fan assembly, fan assembly drives the rotor of permagnetic synchronous motor;
The motor side current transformer, motor side current transformer and permagnetic synchronous motor form closed loop, and the motor side current transformer detects the voltage of permagnetic synchronous motor and power and according to the voltage of permagnetic synchronous motor and the electric current of power adjustments motor side;
The grid side current transformer, grid side current transformer and electrical network form closed loop, the voltage of grid side current transformer detection of grid and power and according to the voltage of electrical network and the electric current of power adjustments grid side.
2. the simulator of VQ type permanent magnetism direct drive wind group of motors as claimed in claim 1 is characterized in that, described fan assembly comprises:
Wind wheel with blade;
Axle is controller, and axle is that controller is connected between wind wheel and the permagnetic synchronous motor, and axle is the rotating speed that controller is regulated the wind wheel output shaft;
Pitch controller, pitch controller are connected to wind wheel and permagnetic synchronous motor, and pitch controller receives the feedback signal of permagnetic synchronous motor, regulate the angle of the blade of wind wheel.
3. the simulator of VQ type permanent magnetism direct drive wind group of motors as claimed in claim 2, it is characterized in that, described pitch controller comprises rotational speed governor and servo controller, rotational speed governor is connected to the feedback signal that permagnetic synchronous motor receives permagnetic synchronous motor, servo controller is connected to rotational speed governor, and servo controller is regulated the angle of the blade of wind wheel.
4. the simulator of VQ type permanent magnetism direct drive wind group of motors as claimed in claim 1 is characterized in that, described motor side current transformer comprises:
The first outer ring controller, the first outer ring controller gathers front voltage and the front end power of permagnetic synchronous motor, and the first outer ring controller generates the first outer shroud control signal according to front voltage and front end power;
The first interior ring controller, be connected to the first outer ring controller, the first interior ring controller gathers rear terminal voltage and the rear end power of permagnetic synchronous motor, and the first interior ring controller produces the first interior ring control signal according to the first outer shroud control signal, rear terminal voltage and rear end power;
The first coordinate converter is connected to the first interior ring controller, and the first coordinate converter receives the first interior ring control signal as input, and output is through the phasor coordinate of the first interior ring control signal of coordinate transform;
The first gate pole controller is connected to the first coordinate converter, and the first gate pole controller produces pulse control signal according to described phasor coordinate;
The first current transformer is connected to the first gate pole controller, regulates duty ratio according to pulse control signal.
5. the simulator of VQ type permanent magnetism direct drive wind group of motors as claimed in claim 4, it is characterized in that, also comprise the maximal power tracing device, the maximal power tracing device is connected between permagnetic synchronous motor and the first outer ring controller, and the maximum power that the maximal power tracing device gathers permagnetic synchronous motor offers the first outer ring controller as front end power.
6. the simulator of VQ type permanent magnetism direct drive wind group of motors as claimed in claim 1 is characterized in that, described grid side current transformer comprises:
The second outer ring controller, the second outer ring controller gathers front voltage and the front end power of electrical network, and the second outer ring controller generates the second outer shroud control signal according to front voltage and front end power;
The second interior ring controller is connected to the second outer ring controller, and the second interior ring controller gathers rear terminal voltage and the rear end power of electrical network, and the second interior ring controller produces the second interior ring control signal according to the second outer shroud control signal, rear terminal voltage and rear end power;
The second coordinate converter is connected to the second interior ring controller, and the second coordinate converter receives the second interior ring control signal as input, and output is through the phasor coordinate of the second interior ring control signal of coordinate transform;
The second gate pole controller is connected to the second coordinate converter, and the second gate pole controller produces pulse control signal according to described phasor coordinate;
The second current transformer is connected to the second gate pole controller, regulates duty ratio according to pulse control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201294102U CN202696147U (en) | 2012-03-30 | 2012-03-30 | Simulating device of VQ type permanent-magnet direct-driven wind generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201294102U CN202696147U (en) | 2012-03-30 | 2012-03-30 | Simulating device of VQ type permanent-magnet direct-driven wind generator set |
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| Publication Number | Publication Date |
|---|---|
| CN202696147U true CN202696147U (en) | 2013-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201294102U Expired - Lifetime CN202696147U (en) | 2012-03-30 | 2012-03-30 | Simulating device of VQ type permanent-magnet direct-driven wind generator set |
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| CN (1) | CN202696147U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317360A (en) * | 2017-08-04 | 2017-11-03 | 湘电风能有限公司 | Direct-drive permanent magnet synchronous aerogenerator group starts grid-connection control device and control method |
-
2012
- 2012-03-30 CN CN2012201294102U patent/CN202696147U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107317360A (en) * | 2017-08-04 | 2017-11-03 | 湘电风能有限公司 | Direct-drive permanent magnet synchronous aerogenerator group starts grid-connection control device and control method |
| CN107317360B (en) * | 2017-08-04 | 2020-03-27 | 湘电风能有限公司 | Starting grid-connected control device and control method for direct-drive permanent magnet synchronous wind generating set |
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Granted publication date: 20130123 |
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| CX01 | Expiry of patent term |