Novel model for optimal coordinated voltage emergency control against voltage collapse

Fang Zhang, Ka Wing Chan, Da Zhong Fang

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

Abstract

A novel optimal coordinated voltage emergency control (OCVEC) model is proposed in this paper. The model, which takes into account the dynamics of loads and discrete/continuous nature of controls, can coordinate dissimilar controls at different geographical locations in order to keep voltage stability against voltage collapse globally during an emergency. A heuristic integration index of the load bus voltage deviation is used as the voltage stability performance index. Based on the optimal control theory, the sensitivities of the performance index with respect to controls are derived rigorously. The sensitivities can be calculated out based on the quasi-steady-state (QSS) fast time domain simulation. The intractable OCVEC model can then be converted into a problem of mixed-integer linear programming. The effectiveness of the proposed model is validated with numerical tests on the New England test power system.
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
CountryHong Kong
CityHong Kong
Period30/10/062/11/06

Keywords

  • Optimal control theory
  • Optimal coordinated voltage emergency control
  • Performance index
  • Sensitivity

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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