文档介绍：新型无功补偿设备在风电场的应用
张锋,晁勤
(新疆大学电气工程学院,新疆乌鲁木齐 830008)
Application of pensate Equipment in Wind Farm
ZHANG Feng, CHAO Qin
(College of Electrician Engineering Xinjiang University, Wulumuqi 830008, china)
Abstract: The constant speed constant-frequency wind power system most adopt induction generator. It must absorb reactive power when it generate active power, the transient voltage stability of wind farms is lowed. Ordinary pensate equipment is unable to sure transient voltage stability of wind farm. In this paper, the mathematic models and controller model of induction generator and pensator () is given. The contribution of to the transient voltage stability of wind farms is verified by the simulation of power system including wind farms. Results of studies show that can assist the induction generator restoring the voltage in the duration of wind farms large disturbance such as three phase short circuit fault, ensuring both the voltage stability of the wind farms and continuous operation of the wind turbines.
Keywords: pensator(); wind farms; transient voltage stability
摘要:恒速恒频风电系统大多采用感应式发电机,它在发出有功功率的同时要吸收无功功率,会导致风电场暂态电压稳定性的降低。在电网或者风电场内部发生大扰动时,普通的无功补偿设备(固定式电容器或可投切式电容器)往往不能保证风电场暂态电压稳定性。本文给出了新型无功补偿设备——pensator()的数学和控制模型,对风电场暂态电压稳定性的贡献。研究结果表明:风电场发生三相短路的大扰动故障时,能够有效帮助恒速异步风电机组在故障后恢复机端电压,从而改善风电场的暂态电压稳定性,确保风电机组连续运行。
关键词:静止同步补偿器();风电场;暂态电压稳定性
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基金项目:
:50667002
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