Due to the imperfect of some reactive compensation installations,the misoperation is prone to occur,thus,locating the switching capacitor bank on multiple buses has the great significance. An efficient location method on two different buses in distribution system is presented using disturbance energy ( DE) and power spectrum ( PS) as the features and support vector machine ( SVM) as intelligent classifier. In this method,firstly,the numerical value and polarity of DE are utilized to determine main area of capacitor switching; then,the PS of voltages from the partial measurement points are estimated and two self - proposed feature indices are calculated; finally,the location of capacitor switching can be obtained by inputting the feature indices into SVM. A simple distribution network model is established in PSCAD/EMTDC,then,the transient bus voltage are measured by simulating the capacitor switching at different locations,and the output signals are put into Matlab for processing. The results show that the proposed method has a good adaptability for locating switching capacitor bank on two different buses, whose average accuracy reaches 98. 6%.
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邓扶摇;赵静;万力;郭亮.一种基于扰动能量与功率谱的电容器组投切的定位方法[J].四川电力技术,2012,35(6):14-19+31. .[J]. SICHUAN ELECTRIC POWER TECHNOLOGY,2012,35(6):14-19+31.