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Simulation on the Control Strategy for a Full Power Converter of Wind Generation Under Grid Fault Conditions
Author(s): 
Pages: 75-80
Year: Issue:  7
Journal: Automation of Electric Power Systems

Abstract: 电网导则要求并网风电机组在电网电压在一定范围内瞬间跌落时不脱网运行.为满足这一要求,研究了全功率变流器风电机组在电网故障时的运行特性.建立了不对称电网故障下网侧变流器的数学模型,分析了正、负序双电流控制策略存在问题的原因,提出了一种直流侧采样电压带变频陷波函数的双电流控制策略,并针对电网频率波动的情况加入锁相环对陷波器进行实时修正.仿真结果表明:当电网出现不对称故障和频率波动时,所提出的控制策略较...
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