Parameter identification of interconnected power system frequency after trip-out of high voltage transmission line

2014, Volume 8, Issue 3

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Frontiers in Energy >> 2014, Volume 8, Issue 3 doi: 10.1007/s11708-014-0323-9

Parameter identification of interconnected power system frequency after trip-out of high voltage transmission line

1. Electrical Power Research Institute of Henan Electric Power Corporation, Zhengzhou 450052, China.2. School of Energy & Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Available online: 2014-09-09

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Abstract

Accurate modeling and parameters of high voltage (HV) grid are critical for stability research of system frequency. In this paper, simulation modeling of the system frequency was conducted of an interconnected power system with HV transmission lines in China. Based on recorded tripping data of the HV transmission lines, system parameters were identified by using genetic algorithm (GA). The favorable agreement between simulation results and recorded data verifies the validity of gird models and the accuracy of system parameters. The results of this paper can provide reference for the stability research of HV power grid.

Keywords

high voltage (HV) grid ; frequency stability parameter identification ; primary frequency regulation (PFR)

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