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Characteristics of capacitor commutated converter in the prevention of HVDC in commutation failure
Pages: 88-92,133
Year: Issue:  18
Journal: Relay

Abstract: 换相失败是高压直流输电最常见的故障之一,严重时会导致极停运给电网带来更大危害.一种人工换相技术—电容换相换流器( CCC),借助于换相电容上的电压能有效地减少换相失败发生概率.从CCC的数学机理出发,将CCC运用到高压直流,研究其在预防换相失败上的特性.以德宝直流枯小方式为模型,在PSCAD/EMTDC中采用优化仿真的方法通过计算换相失败临界阻抗的大小,反映CCC在预防高压直流换相失败上的特性.仿...
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