범용 SSR 고유치 해석 프로그램을 이용한 HVDC 시스템 SSR 댐핑제어기 설계

HVDC System SSR Damping Controller Design Using Universal SSR Eigenvalue Analysis Program

This paper describes the design of torsional oscillation controller in HVDC system using the universal SSR eigenvalue program. The suggested design procedures consist of three steps. Fist step is to identify the characteristics of AC system with torsional modes and HVDC system; then, to determine the control parameters of the suggested torsional oscillation controller (SSRStab) to compensate the phasor lagging due to rectifier controller. Finally, using time-domain simulation program verifies the designed parameters and determine the appropriate gain. The suggested method is simple to tune the parameters and effective to damp the least stable torsional oscillation mode.