目前,10 k V配电网经过改造,供电可靠性得到了空前提高,但实际运行中仍有一些线路存在高跳闸现象。为进一步提高配电网基层基础管理水平,消除影响配电网安全运行的薄弱环节,解决配电线路高跳闸的突出问题,需要采取有效措施对配电网线路...目前,10 k V配电网经过改造,供电可靠性得到了空前提高,但实际运行中仍有一些线路存在高跳闸现象。为进一步提高配电网基层基础管理水平,消除影响配电网安全运行的薄弱环节,解决配电线路高跳闸的突出问题,需要采取有效措施对配电网线路高跳闸进行防范。1管理措施(1)认真开展高跳闸线路统计分析。建立配电网高跳闸线路故障分析制度,结合月度运行分析会,按月组织故障分析统计.展开更多
The theories of diagnosing nonlinear analog circuits by means of the transient response testing are studled. Wavelet analysis is made to extract the transient response signature of nonlinear circuits and compress the ...The theories of diagnosing nonlinear analog circuits by means of the transient response testing are studled. Wavelet analysis is made to extract the transient response signature of nonlinear circuits and compress the signature dada. The best wavelet function is selected based on the between-category total scatter of signature. The fault dictionary of nonlinear circuits is constructed based on improved back-propagation（BP） neural network. Experimental results demonstrate that the method proposed has high diagnostic sensitivity and fast fault identification and deducibility.展开更多
文摘目前,10 k V配电网经过改造,供电可靠性得到了空前提高,但实际运行中仍有一些线路存在高跳闸现象。为进一步提高配电网基层基础管理水平,消除影响配电网安全运行的薄弱环节,解决配电线路高跳闸的突出问题,需要采取有效措施对配电网线路高跳闸进行防范。1管理措施(1)认真开展高跳闸线路统计分析。建立配电网高跳闸线路故障分析制度,结合月度运行分析会,按月组织故障分析统计.
基金This project was supported by the National Nature Science Foundation of China(60372001)
文摘The theories of diagnosing nonlinear analog circuits by means of the transient response testing are studled. Wavelet analysis is made to extract the transient response signature of nonlinear circuits and compress the signature dada. The best wavelet function is selected based on the between-category total scatter of signature. The fault dictionary of nonlinear circuits is constructed based on improved back-propagation（BP） neural network. Experimental results demonstrate that the method proposed has high diagnostic sensitivity and fast fault identification and deducibility.
