Nonlinear modal interaction in hvdc/ac power systems with dc power modulation

Y. X. Ni, V. Vittal, W. Kliemann, A. A. Found

Research output: Contribution to journalArticlepeer-review

40 Scopus citations


In this paper investigation of nonlinear modal interaction using the normal form of vector fields technique is extended to HVDC/AC power systems with do power modulation. The ae-dc interface equations are solved to form a state space model with second order approximation. Using the normal form technique, the system's nonlinear dynamic characteristics are obtained. The proposed approach is applied to a 4-generator HVDC/AC test power system, and compared with the time domain solution.

Original languageEnglish (US)
Pages (from-to)2011-2017
Number of pages7
JournalIEEE Transactions on Power Systems
Issue number4
StatePublished - 1996
Externally publishedYes

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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