Preventive Control for Transient Security with Generation Rescheduling Based on Rotor Trajectory Index

Abstract

-The increasing need to improve transient security assessment of existing or forecasted operating conditions of networks by power system operators is major concern of the power system security monitoring problem at the Energy Management Systems. This paper proposes a preventive control of transient stability with generation rescheduling based on rotor trajectory index obtained using time domain simulations. This index may help power engineers in making operational decision and to obtain a generation configuration with better transient security dispatch. The effectiveness of the proposed methodology is demonstrated on IEEE 39-bus New England system for a three phase fault at different loading conditions with single and multiple line outage cases.

Transient stability improvement for electrical power systems based on the impedance change of a transmission system

“…This article focuses on the main works available in the literature on preventive controls that use a model referred to as transient stability . In this context, one of the first approaches based on the sensitivity analysis of preventive control was presented by Xue et al Their methodology uses generation reallocation to change the EPS operating point.…”

“…Chadalavada and Vittal present a method to infer the transient stability by changing the topology of the electrical network and analyzing the sensitivity of the SM. In Verma and Niazi, the preventive control methodology is based on generation redispatch and the stability is inferred from an index on rotor trajectory.…”