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COORDINATED CONTROL SYSTEM AND METHOD OF WIND TURBINE AND STATCOM FOR SUPPRESSING UNBALANCED VOLTAGE IN DISPERSED WIND FARM
COORDINATED CONTROL SYSTEM AND METHOD OF WIND TURBINE AND STATCOM FOR SUPPRESSING UNBALANCED VOLTAGE IN DISPERSED WIND FARM
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机译：用于抑制分散风电场中不平衡电压的风力涡轮机和风力涡轮机的协调系统和方法
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摘要
A system and method for suppressing unbalanced voltage at the Point of Common Coupling of dispersed wind farm.the wind farm comprising a STATCOM and plurality of wind turbines, dispersed wind farm controller, STATCOM controller, wind turbine controller. The dispersed wind farm controller decides that whether the STATCOM or the wind turbines inject negative-sequence current or not. Adaptive virtual negative-sequence output admittance controller is incorporated into the STATCOM controller and wind turbine controller, which can provide the negative-sequence current reference according to their participation factor. The compensation efforts of STATCOM and wind turbines can be flexibly controlled by changing their participation factor, which is related to the voltage unbalance voltage reference and the remaining capacity. The disclosure has significant advantages in cost and effectiveness to suppress the unbalanced voltage of PCC and improve the wind farm Low voltage fault recovery capability.
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