a smart online over-voltage monitoring and identification system一个聪明的过电压在线监测和识别系统.pdfVIP

Energies 2011, 4, 599-615; doi:10.3390/en4040599 OPEN ACCESS energies ISSN 1996-1073 /journal/energies Article A Smart Online Over-Voltage Monitoring and Identification System Jing Wang 1, Qing Yang 1,2,*, Wenxia Sima 1, Tao Yuan 1 and Markus Zahn 2 1 State Key Laboratory of Power Transmission Equipment System Security and New Technology, Chongqing University, Chongqing, China; E-Mails: bjjdwj@ (J.W.); cqsmwx@ (W.S.); yuantao_cq@ (T.Y.) 2 Research Laboratory of Electronics, Laboratory for Electromagnetic and Electronic Systems, High Voltage Research Laboratory, Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; E-Mail: zahn@ * Author to whom correspondence should be addressed; E-Mail: yangqing@; Tel.: +86-23 Fax: +86-23 Received: 24 February 2011; in revised form: 6 April 2011 / Accepted: 15 April 2011 / Published: 18 April 2011 Abstract: This paper proposes a complete and effective smart over-voltage monitoring and identification system. In recent years, smart grids are of the greatest interest in power system research. One of the main features of smart grid is their self-healing, which can continuously carry out online self-evaluation, discover existing faults, and correct them immediately. The over-voltage smart monitoring-identification-suppression systems play a key role in the construction of self-healing grids. In this paper, eight kinds of common over-voltage are discussed and analyzed.