Preventive control of transient stability in power system using trajectory sensitivities

Yanhong Li, Ka Wing Chan, Mingbo Liu

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

In this paper, the problem of transient stability preventive control is partitioned into two sub- problems, namely optimal power flow (OPF) problem and transient stability control, such that they could be solved in turn using an iterative approach. For each transient unstable contingency, trajectory sensitivities based generation rescheduling is performed to regain the system stability. Instead of using approximated initial values, new expressions for the trajectory sensitivities of algebraic variables have been derived to obtain their accurate initial values. Furthermore, a largest rotor angle criterion under the COI reference frame is adopted to determine the critical order of generators. Results obtained from the WSCC 3-machine 9-bus and New England 10-machine 39-bus systems have validated that the proposed method is practical and effective.
Original languageEnglish
Title of host publication7th IET International Conference on Advances in Power System Control, Operation and Management (APSCOM 2006)
Edition523 CP
DOIs
Publication statusPublished - 1 Dec 2006
Event7th IET International Conference on Advances in Power System Control, Operation and Management, APSCOM 2006 - Hong Kong, Hong Kong
Duration: 30 Oct 20062 Nov 2006

Conference

Conference7th IET International Conference on Advances in Power System Control, Operation and Management, APSCOM 2006
Country/TerritoryHong Kong
CityHong Kong
Period30/10/062/11/06

Keywords

  • Generation rescheduling
  • Optimal power flow
  • Trajectory sensitivity
  • Transient stability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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