摘要
针对大规模风力发电通过特高压直流外送系统输送电力存在次同步振荡的问题,以同步相量测量装置(PMU)为工具,将风电场、换流站等风电汇集地区相关站点的次同步装置都纳入监测系统,采用监测联络线有功功率振荡波形并结合联络线次同步谐波频率特征进行次同步振荡的判断。从监测系统中PMU记录的数据频谱来看具体的某一次扰动,次同步谐波监测装置所监测到的扰动与其他扭振监测保护装置的监测记录结果等在发生实践、扰动波形趋势上基本一致。
In view of the sub-synchronous oscillation problem of wind power generation in UHV DC transmission system, the synchronous devices in wind farm, converter station and other related sites of wind power collection areas are incorporated into monitoring system based on synchronized Phasor Measurement Unit （PMU） tool. The sub-synchronous oscillation is judged by detecting the active power oscillation waveform of tie line and combining with the sub-synehrorlous harmonic frequency characteristics of contact line. To a specific disturbance, the data spectrum recorded by PMU in monitoring system show that the monitoring and recording results of sub-synchronous harmonics monitoring device and other torsion vibration monitoring protection device are basically same in processing and disturbance wave form.
出处
《水力发电》
北大核心
2017年第5期86-90,共5页
Water Power
基金
自治区重点实验室资助项目(2016D03021)
国家自然科学基金资助项目(51267017)
国家高技术研究发展计划资助项目(863计划)(2013AA050604)
