Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1995.11a
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- Pages.89-91
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- 1995
Voltage Stability Analysis of AC/DC Systems
AC/DC 계통의 전압안정도 해석
- Nam, Hae-Kon (Chonnam National University) ;
- Kim, Yong-Hak (Chonnam National University)
- Published : 1995.11.18
Abstract
This paper describes an extension or a pair or multiple load flow solutions and nose curve method developed for voltage stability analysis or AC power systems to AC/DC systems. In this approach the converters are regarded as voltage dependent loads. Assuming that the converters at the unstable (-mode) solution consume the same power equal to the power at the stable (+mode) solution, the unstable solutions or the nose curves arc determined. This method is very efficient since estimating voltage collapse point and voltage stability margin arc determined by a few iterations of multiple load flow solutions. Also the method has the advantages that since the structure or Jacobian matrix is same with that of AC load flow, modal analysis or voltage stability is readily applicable if desired.
Keywords