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New equivalence method of integrated three-phase AC-DC system based on differential homology and chaotic analysis

Zha Xiao-Ming Zhang Yang Sun Jian-Jun Fan You-Ping

New equivalence method of integrated three-phase AC-DC system based on differential homology and chaotic analysis

Zha Xiao-Ming, Zhang Yang, Sun Jian-Jun, Fan You-Ping
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Publishing process
  • Received Date:  27 April 2011
  • Accepted Date:  16 May 2011
  • Published Online:  05 January 2012

New equivalence method of integrated three-phase AC-DC system based on differential homology and chaotic analysis

  • 1. School of Electric Engineering, Wuhan University, Wuhan 430072, China
Fund Project:  Project supported by the National Natural Science Foundation of China(Grant Nos. 61074101, 51177113).

Abstract: Integrated three-phase AC-DC system is widely used in modern society with series of base units. In this paper we deduce a general equation of the system in an affine coordination in order to use the differential geometry. Firstly, a new approximate equivalence method is presented by differential homology, including the judgment criterion and the main parameters of the equivalent model. Besides, the chaotic analysis relates different parameters to different situations which can accurately be simulated by PSCAD/EMTDC. And then calculation of eigenvalue indicates that the equivalence method is useful and simple. Finally, a simulation shows the accuracy and the applicability of the method.

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