面向宽频振荡抑制的宽频相量测量装置  

Wideband phasor measurement device for wideband oscillation mitigation

作　　者：伍双喜 陈垒[2] 杨银国 谢小荣[2] 刘洋 WU Shuangxi;CHEN Lei;YANG Yinguo;XIE Xiaorong;LIU Yang(Power Dispatch&Control Center,Guangdong Power Grid Co.,Ltd.,Guangzhou 510600,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]广东电网有限责任公司电力调度控制中心,广东广州510600 [2]清华大学电机系,北京100084

出　　处：《电力自动化设备》2022年第8期215-220,共6页Electric Power Automation Equipment

基　　金：中国南方电网公司科技项目(GDKJXM20198228)。

摘　　要：快速实时测量宽频相量对于宽频振荡抑制有着重要意义。然而,已有宽频相量测量装置主要面向监测类应用,响应速度慢。研制了一种面向宽频振荡抑制的宽频相量测量装置。该装置采用加窗插值离散傅里叶变换算法,实现多模式宽频相量测量;采用较短时间窗缩短算法的动态响应时间;通过2个数字信号处理器并行计算分别完成基波和谐波/间谐波相量测量。通过性能测试发现,所研制的宽频相量测量装置响应速度快、准确度高,能满足宽频振荡抑制等应用对相关性能的要求。Measuring wideband phasor in a fast and online way is very important for wideband oscillation mitigation.However,the existing wideband phasor measurement devices are developed for monitoring applications,and have a long response time.In this regard,a wideband phasor measurement device for wideband oscillation mitigation is developed,which uses the windowed interpolation discrete Fourier transform to measure multi-mode wideband phasors.A short window is used to shorten the dynamic response time.Two digital signal processors are used to measure fundamental and harmonic/interharmonic phasors respectively.The performance tests show that the developed wideband phasor measurement device has fast response and high accuracy,which can satisfy the corresponding requirements in protection applications,such as wideband oscillation mitigation.

关 键 词：宽频振荡 相量测量装置 振荡抑制 离散傅里叶变换 响应时间 

分 类 号：TM712[电气工程—电力系统及自动化]