基于风电联络线恢复电压的自适应单相重合闸

王月林; 李凤婷

王月林,李凤婷.基于风电联络线恢复电压的自适应单相重合闸[J].电测与仪表,2017,54(7):.
Wang Yuelin,Li Fengting.Adaptive single-phase reclosure based on recovery voltage of wind farm tie line[J].Electrical Measurement & Instrumentation,2017,54(7):.

基于风电联络线恢复电压的自适应单相重合闸

Adaptive single-phase reclosure based on recovery voltage of wind farm tie line

DOI：

中文关键词: 风电场联络线非全相运行电容耦合电感耦合恢复电压故障性质单相自适应重合闸

英文关键词:wind farm tie line, open-phase running, capacitive coupling, inductive coupling, recovery voltage, fault properties, adaptive single-phase reclosure

基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目）

作者中文名	作者英文名	单位
王月林	Wang Yuelin	可再生能源发电与并网技术教育部工程研究中心（新疆大学）
李凤婷	Li Fengting	可再生能源发电与并网技术教育部工程研究中心（新疆大学）

摘要点击次数: 1520

中文摘要:

本文首先分析了线路单相接地保护动作后非全相运行时的故障相恢复电压特性及其影响因素，在此基础上研究了风电与常规能源的阻抗特性。在PSCAD中构建了故障相恢复电压模型，仿真研究了故障性质、风机类型、线路布置方式和电压等级对联络线非全相运行时的恢复电压的影响。最后基于电容耦合电压提出了能够可靠地区分瞬时和永久故障的自适应重合策略，仿真结果表明，该策略原理简单，易于实现，耐受过渡电阻能力强，灵敏度高。

英文摘要:

This paper first analyzed the voltage characteristics of the fault phase and its influence factors when the condition of open-phase running after single-phase grounding protection operated occurs. On this basis, the impedance characteristics of wind power and conventional energy were studied. The recovery voltage model of fault phase was constructed in PSCAD, and the influence of fault properties, type of wind turbine, tie line arrangement modes as well as voltage level on the recovery voltage was simulated and studied. Finally adaptive reclosing strategy based on capacitive coupling voltage that can reliably distinguish transient from permanent fault properties was proposed. Simulation results showed that the method principle is simple, easy to implement, free?of fault resistance and with high sensitivity.

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