风电场无功补偿问题的研究

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风电场无功补偿问题的研究

朱雪凌; 张洋; 高昆; 李强; 杜习周; 刘同和

电力系统保护与控制, 2009, Volume: 37, Issue: 16

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TM71; 研究了改善异步机风电场电压稳定性的措施.基于普通异步风机的恒速风电机组是目前应用较为广泛的风电机组,其发出有功功率的同时吸收无功功率,会导致接入风电地区电网的电压稳定性降低.采用在风电场升压站加装静止无功补偿器(SVC)的方法,控制并网点的电压水平,重点研究在不同风速和负荷下,如何确定SVC的补偿量问题.文中对风电场节点的处理较准确地反映了其无功和电压特性.提出了将遗传算法与模拟退火法相结合的遗传模拟退火算法,采用模拟退火进行个体更新,以增加群体的多样性,避免陷入局部最优.以某实际含风电场的电力系统为例对所提算法的有效性进行测试,结果表明按照该算法确定的SVC补偿量进行风电场的无功补偿,可以明显提高风电场的电压稳定性.

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