CN101753086A - Fault traversing performance analog system of double-fed wind driven generator - Google Patents

Fault traversing performance analog system of double-fed wind driven generator Download PDF

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Publication number
CN101753086A
CN101753086A CN 201010044820 CN201010044820A CN101753086A CN 101753086 A CN101753086 A CN 101753086A CN 201010044820 CN201010044820 CN 201010044820 CN 201010044820 A CN201010044820 A CN 201010044820A CN 101753086 A CN101753086 A CN 101753086A
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China
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double
electric
circuit
fed
generator
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CN 201010044820
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Chinese (zh)
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CN101753086B (en
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宋少群
王毅
付超
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福建省电力有限公司福州电业局
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Abstract

The invention discloses a fault traversing performance analog system of a double-fed wind driven generator, comprising a motor system, an imitator main circuit, a DSP control system and an upper computer monitoring system based on Labview software. The motor system comprises a direct-current motor and a double-fed motor coaxially connected with each other; the imitator main circuit comprises a frequency converter, a direct-current speed regulator, a Crowbar circuit and a voltage spiller module, wherein a voltage spilling generator is connected between the power source and the double-fed motor; the frequency converter is connected between an output end of the voltage spiller and a rotor of the double-fed motor; the direct-current speed regulator is connected between the input end of the voltage spiller and the direct-current motor; and the Crowbar is connected at the rotor side of the double-fed motor. The system has complete analog function of the fan operational characteristic during a fault of power grid, provides perfect test platform for the research of the double-fed motor and can be used for researching the performances of low-voltage traversing, support to weak grid, and the like.

Description

The fault traversing performance analog system of double-fed wind power generator
Technical field
The present invention relates to a kind of analogue system of double-fed wind power generator performance study, particularly a kind of fault traversing performance analog system of studying double-fed wind power generator.
Background technology
The field experiment that generator and wind energy conversion system directly link to each other is not only uneconomical, also can be subjected to the restriction of natural conditions.The laboratory simulation scheme of therefore existing more wind energy conversion system and generator is suggested, to shorten the search time of wind-driven generator control performance.Existing double-fed wind power generator analogue technique has realized not possessing the laboratory simulation of the double-fed fan characteristic of wind field environment, comprise double feedback electric engine that the simulation of wind field wind speed simulation, feature of wind machine, double-PWM frequency converter the drive simulated behavior etc. that is incorporated into the power networks, but also do not possess the double-fed wind power generator dynamic property analog functuion under electric network fault (electric voltage dropping and the imbalance) situation.Growth at full speed along with the wind-electricity integration capacity, wind-driven generator is not as possessing fault ride-through capacity, will certainly influence the safe and stable operation of electrical network, the experimental simulation of fan operation performance during therefore to grid disturbance passes through algorithm important meaning is arranged studying its fault.
Summary of the invention
The object of the present invention is to provide a kind of analogue system of fan operation characteristic when being applicable to grid disturbance, for the fault ride-through capacity of research double-fed wind power generator provides perfect experiment porch.
A kind of fault traversing performance analog system of double-fed wind power generator, its structural feature is: comprise electric system, the simulator main circuit, the DSP control system, ipc monitor system based on Labview software, described electric system comprises the DC motor and the double feedback electric engine of coaxial connection, the simulator main circuit comprises frequency converter, DC speed regulator, Crowbar circuit and each module of electric voltage dropping device, voltage falling generator is connected between power supply and the double feedback electric engine, frequency converter is connected between electric voltage dropping device output and the double fed electric machine rotor, DC speed regulator is connected between electric voltage dropping device input and the direct current machine, Crowbar is connected to the double fed electric machine rotor side, each module controls function of DSP control system control simulator main circuit, the ipc monitor system exports various instructions and gives the DSP control system.
The fault traversing performance analog system of double-fed wind power generator of the present invention, be integrated in the DSP control system by each functional control module the simulator main circuit, export various instructions by the ipc monitor system and give the DSP control system, with realization each functional control module of simulator main circuit integrated in the DSP control system is moved by required mode, make them possess double feedback electric engine and may run into grid disturbance one in actual applications just like electric voltage dropping and imbalance, the functional module of anti-grid disturbance also is set in simulator main circuit functional module simultaneously, and make this system have fault ride-through capacity, thereby for research double-fed wind power generator fault ride-through capacity perfect experiment porch is provided.
Each module of described simulator main circuit integrates.
Each module is integrated, make hardware system obtain simplifying.
Described each module controls function of DSP control system control simulator main circuit is respectively: comprise the meritorious idle decoupling zero control of frequency converter, the torque tracking Control that comprises DC speed regulator, the electric voltage dropping time that comprises voltage falling generator, comprise rotor short-circuit time of Crowbar circuit.
The various instructions of described ipc monitor system output comprise wind speed parameter, fan parameter, electric network fault, according to wind farm wind velocity simulation model, wind energy conversion system torque model and motor speed, propeller pitch angle calculate the blower fan torque, meritorious and reactive power is monitored to the output of wind-driven generator.
Described frequency converter for based on the IGBT device for to connect back-to-back by the three-phase PWM translation circuit, the regulator generator rotating speed is incorporated into the power networks to realize maximal wind-energy tracking and variable speed constant frequency.
Described DC speed regulator is for constituting by three-phase diode bridge-type rectification circuit with based on the buck circuit of IGBT device, and the torque instruction simulation blower fan torque output according to host computer drives double feedback electric engine.
Described electric network electric voltage drop device is made of series connection reactor, thyristor solid-state switch and adjustable resistance in parallel in the line, by antiparallel thyristor being triggered the time of control simulation electric network electric voltage drop, the degree of depth of falling by the value aanalogvoltage of regulating reactor and resistance.
Described Crowbar circuit is made of the IGBT and the resistance of three-phase diode rectifier bridge and DC side, and whether the short circuit of control rotor circuit to be, the rotor-side overtension when preventing electric network electric voltage drop, thus make the double feedback electric engine system possess fault ride-through capacity.
In sum, the present invention has following advantage compared to existing technology:
The analog functuion of fan operation characteristic when experimental simulation system of the present invention has complete electric network fault, for the research of double feedback electric engine provides perfect experiment porch, can be used for its low-voltage pass through, to the Performance Experiment such as support of light current net.Because each module main circuit integrates, hardware system is simplified, and can carry out centralized control, has reduced system cost, and good man computer interface is arranged.
Description of drawings
Fig. 1 is the fault traversing performance analog system schematic diagram of double-fed wind power generator of the present invention
Fig. 2 is the converter circuit figure of the embodiment of the invention
Fig. 3 is the DC speed regulator circuit diagram
Fig. 4 is the voltage falling generator circuit diagram
Fig. 5 is the Crowbar circuit diagram
Embodiment
Below in conjunction with embodiment the present invention is described in more detail.
Embodiment 1
The fault traversing performance analog system schematic diagram of double-fed wind power generator as shown in Figure 1, experimental simulation system comprise electric system, simulator main circuit and DSP control system, ipc monitor system.Electric system comprises each one of the DC motor of coaxial connection and wire-wound asynchronous motor.The simulator main circuit structure is an integrated platform that is made of each modules such as frequency converter, DC speed regulator, Crowbar circuit and electric voltage dropping devices.Wherein voltage falling generator is connected between transformer and the double feedback electric engine, frequency converter is connected between electric voltage dropping device output and the double fed electric machine rotor, DC speed regulator is connected between electric voltage dropping device input and the direct current machine, and Crowbar is connected to the double fed electric machine rotor side.The structure of frequency converter such as Fig. 2, for two three-phase PWM translation circuits based on the IGBT device connect back-to-back, the regulator generator rotating speed is incorporated into the power networks to realize maximal wind-energy tracking and variable speed constant frequency; DC speed regulator such as Fig. 3 constitute by three-phase diode bridge-type rectification circuit with based on the buck circuit of IGBT device, and the torque instruction simulation blower fan torque output according to host computer drives double feedback electric engine; Electric network electric voltage drop device such as Fig. 4, constitute by series connection reactor, thyristor solid-state switch and adjustable resistance in parallel in the line, by antiparallel thyristor being triggered the time of control simulation electric network electric voltage drop, the degree of depth of falling by the value aanalogvoltage of regulating reactor and resistance; Crowbar circuit such as Fig. 5 are made of the IGBT and the resistance of three-phase diode rectifier bridge and DC side, and whether the short circuit of control rotor circuit to be, the rotor-side overtension when preventing electric network electric voltage drop, thus make the double feedback electric engine system possess fault ride-through capacity; The controlled function of each module of main circuit that the DSP control system is integrated comprises the meritorious idle decoupling zero control of frequency converter, the torque tracking Control of DC speed regulator, the electric voltage dropping time of voltage falling generator, the rotor short-circuit time of Crowbar circuit etc.; The ipc monitor system is based on Labview software, can realize settings such as wind speed parameter, fan parameter, electric network fault, calculate blower fan torque output order according to wind farm wind velocity simulation model, wind energy conversion system torque model and motor speed, propeller pitch angle and give the DSP control system, can monitor with reactive power the output of wind-driven generator is meritorious simultaneously.
It is same as the prior art that present embodiment is not stated part.

Claims (8)

1. the fault traversing performance analog system of a double-fed wind power generator, it is characterized in that: comprise electric system, the simulator main circuit, the DSP control system, ipc monitor system based on Labview software, described electric system comprises the DC motor and the double feedback electric engine of coaxial connection, the simulator main circuit comprises frequency converter, DC speed regulator, Crowbar circuit and each module of electric voltage dropping device, voltage falling generator is connected between power supply and the double feedback electric engine, frequency converter is connected between electric voltage dropping device output and the double fed electric machine rotor, DC speed regulator is connected between electric voltage dropping device input and the direct current machine, Crowbar is connected to the double fed electric machine rotor side, each module controls function of DSP control system control simulator main circuit, the ipc monitor system exports various instructions and gives the DSP control system.
2. the fault traversing performance analog system of double-fed wind power generator according to claim 1, it is characterized in that: each module of described simulator main circuit integrates.
3. the fault traversing performance analog system of double-fed wind power generator according to claim 2, it is characterized in that: described each module controls function of DSP control system control simulator main circuit is respectively: comprise the meritorious idle decoupling zero control of frequency converter, the torque tracking Control that comprises DC speed regulator, the electric voltage dropping time that comprises voltage falling generator, comprise rotor short-circuit time of Crowbar circuit.
4. according to the fault traversing performance analog system of any one described double-fed wind power generator of claim 1 to 3, it is characterized in that: the various instructions of described ipc monitor system output comprise wind speed parameter, fan parameter, electric network fault, according to wind farm wind velocity simulation model, wind energy conversion system torque model and motor speed, propeller pitch angle calculate the blower fan torque, meritorious and reactive power is monitored to the output of wind-driven generator.
5. the fault traversing performance analog system of double-fed wind power generator according to claim 4, it is characterized in that: described frequency converter for based on the IGBT device for to connect back-to-back by the three-phase PWM translation circuit, the regulator generator rotating speed is incorporated into the power networks to realize maximal wind-energy tracking and variable speed constant frequency.
6. the fault traversing performance analog system of double-fed wind power generator according to claim 5, it is characterized in that: described DC speed regulator is for constituting by three-phase diode bridge-type rectification circuit with based on the buck circuit of IGBT device, torque instruction simulation blower fan torque output according to host computer drives double feedback electric engine.
7. the fault traversing performance analog system of double-fed wind power generator according to claim 6, it is characterized in that: described electric network electric voltage drop device is made of series connection reactor, thyristor solid-state switch and adjustable resistance in parallel in the line, by antiparallel thyristor being triggered the time of control simulation electric network electric voltage drop, the degree of depth of falling by the value aanalogvoltage of regulating reactor and resistance.
8. the fault traversing performance analog system of double-fed wind power generator according to claim 7, it is characterized in that: described Crowbar circuit is made of the IGBT and the resistance of three-phase diode rectifier bridge and DC side, whether the short circuit of control rotor circuit, rotor-side overtension when preventing electric network electric voltage drop, thus make the double feedback electric engine system possess fault ride-through capacity.
CN 201010044820 2010-01-12 2010-01-12 Fault traversing performance analog system of double-fed wind driven generator CN101753086B (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893891A (en) * 2010-07-27 2010-11-24 上海卡鲁自动化科技有限公司 Laboratory test system and method of wind driven generator control system
CN101937483A (en) * 2010-09-09 2011-01-05 苏勋文 Dynamic equivalence modeling method for double-fed set wind power station based on action condition of pitch angle
CN102005779A (en) * 2010-11-17 2011-04-06 浙江运达风电股份有限公司 Converter-based low voltage ride through control system of wind generating set
CN102064714A (en) * 2010-12-02 2011-05-18 永济新时速电机电器有限责任公司 Doubly-fed wind power frequency converter
CN102299526A (en) * 2011-09-09 2011-12-28 南车株洲电力机车研究所有限公司 Low voltage ride through (LVRT) control method and system device for doubly-fed wind generating set
CN102354125A (en) * 2011-10-11 2012-02-15 国电联合动力技术有限公司 Comprehensive simulation system for low-voltage passing of wind turbine and method
CN102353863A (en) * 2011-09-02 2012-02-15 中国科学院电工研究所 Renewable energy source power generation synchronization test platform
CN102680895A (en) * 2012-05-30 2012-09-19 合肥工业大学 Wind power generation simulation platform and simulation method thereof
CN102819221A (en) * 2012-08-08 2012-12-12 中国电力科学研究院 Low voltage ride through characteristic co-simulation model for wind turbine generator and co-simulation method thereof
CN103138289A (en) * 2012-11-08 2013-06-05 中国电力科学研究院 Real-time digital simulation modeling method of high permeability wind power plant
CN103986166A (en) * 2014-05-30 2014-08-13 哈尔滨工业大学 Wind-power-plant network voltage fault protection device and method suitable for wide power factor range
CN104298121A (en) * 2013-07-15 2015-01-21 哈尔滨工业大学(威海) Doubly-fed wind power generation system simulation experiment platform for control technology research
TWI475796B (en) * 2012-01-16 2015-03-01 Delta Electronics Shanghai Co Excitation control circuit and ellectrically excited wind power system having the same
CN104459540A (en) * 2014-12-15 2015-03-25 云南电网有限责任公司电网规划研究中心 Power-grid-impact-free detection method for low voltage ride through function of doubly-fed wind turbine generator system
US9257929B2 (en) 2012-04-16 2016-02-09 Delta Electronics (Shanghai) Co., Ltd. Excitation control circuit, control method and electrically excited wind power system having the same
CN105319465A (en) * 2015-10-21 2016-02-10 清华大学 Power grid voltage fault simulation device
CN105356504A (en) * 2015-11-19 2016-02-24 上海电机学院 Converter, control method thereof and wind power generation system

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101893891B (en) * 2010-07-27 2012-08-08 上海卡鲁自动化科技有限公司 Laboratory test system and method of wind driven generator control system
CN101893891A (en) * 2010-07-27 2010-11-24 上海卡鲁自动化科技有限公司 Laboratory test system and method of wind driven generator control system
CN101937483A (en) * 2010-09-09 2011-01-05 苏勋文 Dynamic equivalence modeling method for double-fed set wind power station based on action condition of pitch angle
CN101937483B (en) * 2010-09-09 2012-06-06 哈尔滨工业大学 Dynamic equivalence modeling method for double-fed set wind power station based on action condition of pitch angle
CN102005779A (en) * 2010-11-17 2011-04-06 浙江运达风电股份有限公司 Converter-based low voltage ride through control system of wind generating set
CN102064714B (en) * 2010-12-02 2013-04-10 永济新时速电机电器有限责任公司 Doubly-fed wind power frequency converter
CN102064714A (en) * 2010-12-02 2011-05-18 永济新时速电机电器有限责任公司 Doubly-fed wind power frequency converter
CN102353863B (en) * 2011-09-02 2013-08-14 中国科学院电工研究所 Renewable energy source power generation synchronization test platform
CN102353863A (en) * 2011-09-02 2012-02-15 中国科学院电工研究所 Renewable energy source power generation synchronization test platform
CN102299526A (en) * 2011-09-09 2011-12-28 南车株洲电力机车研究所有限公司 Low voltage ride through (LVRT) control method and system device for doubly-fed wind generating set
CN102354125A (en) * 2011-10-11 2012-02-15 国电联合动力技术有限公司 Comprehensive simulation system for low-voltage passing of wind turbine and method
TWI475796B (en) * 2012-01-16 2015-03-01 Delta Electronics Shanghai Co Excitation control circuit and ellectrically excited wind power system having the same
US9007788B2 (en) 2012-01-16 2015-04-14 Delta Electronics (Shanghai) Co., Ltd. Excitation control circuit and electrically excited wind power system having the same
US9257929B2 (en) 2012-04-16 2016-02-09 Delta Electronics (Shanghai) Co., Ltd. Excitation control circuit, control method and electrically excited wind power system having the same
CN102680895A (en) * 2012-05-30 2012-09-19 合肥工业大学 Wind power generation simulation platform and simulation method thereof
CN102680895B (en) * 2012-05-30 2015-02-18 合肥工业大学 Simulation method of wind power generation simulation platform
CN102819221A (en) * 2012-08-08 2012-12-12 中国电力科学研究院 Low voltage ride through characteristic co-simulation model for wind turbine generator and co-simulation method thereof
CN102819221B (en) * 2012-08-08 2016-05-25 中国电力科学研究院 LVRT Capability of Wind Turbine Generator characteristic associative simulation model and joint simulation method thereof
CN103138289A (en) * 2012-11-08 2013-06-05 中国电力科学研究院 Real-time digital simulation modeling method of high permeability wind power plant
CN103138289B (en) * 2012-11-08 2015-05-13 中国电力科学研究院 Real-time digital simulation modeling method of high permeability wind power plant
CN104298121A (en) * 2013-07-15 2015-01-21 哈尔滨工业大学(威海) Doubly-fed wind power generation system simulation experiment platform for control technology research
CN104298121B (en) * 2013-07-15 2017-08-29 哈尔滨工业大学(威海) The dual feedback wind power generation system simulation experiment platform of Control-oriented technical research
CN103986166B (en) * 2014-05-30 2016-08-24 哈尔滨工业大学 It is suitable for wind farm voltage failure protection device and the method for wide power factor scope
CN103986166A (en) * 2014-05-30 2014-08-13 哈尔滨工业大学 Wind-power-plant network voltage fault protection device and method suitable for wide power factor range
CN104459540A (en) * 2014-12-15 2015-03-25 云南电网有限责任公司电网规划研究中心 Power-grid-impact-free detection method for low voltage ride through function of doubly-fed wind turbine generator system
CN104459540B (en) * 2014-12-15 2017-02-22 云南电网有限责任公司电网规划研究中心 Power-grid-impact-free detection method for low voltage ride through function of doubly-fed wind turbine generator system
CN105319465A (en) * 2015-10-21 2016-02-10 清华大学 Power grid voltage fault simulation device
CN105356504A (en) * 2015-11-19 2016-02-24 上海电机学院 Converter, control method thereof and wind power generation system

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