基于PMU的机组一次调频特性参数在线监测  

On-line Monitoring and Computing of Unit PFR Characteristic Parameter Based on PMU

作　　者：郑涛[1] 高伏英[2] 

机构地区：[1]国电南瑞科技股份有限公司,江苏省南京市210003 [2]华东电力调度中心,上海市200002

出　　处：《电力系统自动化》2009年第11期57-61,71,共6页Automation of Electric Power Systems

摘　　要：提出了一种基于同步相量测量装置(PMU)采集的动态测量数据,在广域测量系统(WAMS)中在线监测机组一次调频特性参数的方法。首先通过实时监视电网频率识别扰动发生,并利用多判据区分频率的大扰动和小扰动,然后采用不同的方法计算机组的一次调频特性参数,包括调速器的调差系数、一次调频死区和延迟时间,评估发电机的一次调频性能,为一次调频的考核及评价提供依据。最后,结合网省调WAMS实际工程实施,介绍了机组一次调频特性参数实测的工程应用情况,对文中所提出的方法进行了验证。An on-line monitoring method of primary frequency characteristic parameters for generators, based on dynamic measurement data sampled by synchronized phasor measurement unit （PMU） in wide area measurement system （WAMS） is presented. First, identifying occurrence of frequency disturbance by real-time monitoring of the power grid frequency, the multi-criterion is used to distinguish large or small frequency disturbance. Then, different methods are adopted to compute unit PFR parameters such as： generator frequency bias coefficient, dead band and delay time, which can be used to assess the generator＇s primary frequency regulation （PFR） performance, and provide data for its evaluation. Finally, the method is verified with the WAMS practical project implementation.

关 键 词：WAMS PMU 一次调频 调差系数 

分 类 号：TM76[电气工程—电力系统及自动化]