High accurate estimation method of sub-synchronous oscillation parameters on PMU
With the rapid development of renewable energy power generations,AC/DC transmissions and static compensations etc,power electronic technology has been widely applied in power system.As traditional power equipment is replaced by a large number of power electronic devices,the disturbances such as harmonic interference and sub-synchronous oscillation are more frequently.In order to detect the sub synchronous oscillation in power system in time,and take measures to ensure the safety and stability of power system,this article analyses the algorithm principle of the PMU and the communication architecture of WAMS/PMU system.According to the IEEE Std C37.118-2011 standard,it elaborates the problems and the limitations existing in the monitoring of sub-synchronous and super-synchronous harmonic parameters on WAMS.On the basis of the above,a method of on-line identification and alarm for the sub-synchronous and super-synchronous harmonic parameters on PMU device is proposed.Combined with FFT spectrum correction theory,the high accuracy identification method of distributed sub synchronous and super synchronous harmonic parameter is realized.The feasibility and accuracy of the method is verified by simulation experiments.
sub-synchronous oscillation amplitude ratio method phasor measurement unit(PMU) FIR Filters
TAN Yong WANG Meng SHEN Jian ZHANG Min HOU Mingguo
Nari Group Corporation(State Grid Electric Power Research Institute),Nanjing 21106,China;NARI Technology Development Co.Ltd,Nanjing 211061,China;State Key Laboratory of Smart Grid Protection and Control,Nanjing 210061,China
国内会议
南京
英文
71-78
2017-08-12（万方平台首次上网日期，不代表论文的发表时间）