摘要
以山西电网为例,主要针对雁淮直流投产后近区风电机组因调节电压能力不足以及风电机组耐高压性能不满足电网正常运行要求而造成的风机脱网进行仿真分析,利用电力系统分析综合程序搭建山西电网实际仿真模型,分析了雁淮直流发生故障对近区风机的影响,并从各种不同的直流故障及风机同时率两个因素仿真计算了风机脱网的趋势。结果表明,雁淮直流近区风机需要提升风机耐压能力并加装动态无功补偿装置来降低脱网风险。
After Yanhuai DC project is put into operation, the off-grid problem of near-zone fans due to insufficient voltage regulating capability and high-voltage resistance being not able to meet the requirement,power grid was simulated and analyzed. The modeling of Shanxi power grid was established,and the off-grid trend of fans is simulated from two factors,various DC faults and the simultaneous rate of fans. The results show that Yanhuai DC near-zone fans needs to enhance the voltage resistance of fans and install dynamic reactive power compensation device to reduce the risk of disconnection.
引文
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