Title :
A novel control scheme for the STATCOM stability enhancement
Author :
Norouzi, Amir H. ; Sharaf, A.M.
Author_Institution :
Dept. of Electr. & Comput. Eng., New Brunswick Univ., Fredericton, NB, Canada
Abstract :
The paper investigates the static synchronous compensator (STATCOM) stability enhancement Two major factors of the STATCOM instability, power system strength and phase-locked loop (PLL) delay, are analyzed theoretically as well as by exact digital simulation. A 24-pulse GTO converter model is designed to represent the exact operation of the STATCOM and the digital simulations are performed in a power transmission system. An automatic gain controller (AGC) is designed to ensure the stable operation of the STATCOM under various load conditions. The operation of the additional supplementary controller is also validated by digital simulation, using the 24-pulse converter model, to demonstrate the effect of the AGC on stabilization of the STATCOM.
Keywords :
automatic gain control; control system synthesis; delay lock loops; digital simulation; phase locked loops; power convertors; power system simulation; power system stability; power transmission control; static VAr compensators; GTO converter model; STATCOM stability enhancement; automatic gain controller; digital simulations; phase-locked loop delays; power system strength; power transmission system; static synchronous compensator; Automatic control; Automatic voltage control; Delay; Digital simulation; Phase locked loops; Power system analysis computing; Power system modeling; Power system simulation; Power system stability; Stability analysis;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2003 IEEE PES
Print_ISBN :
0-7803-8110-6
DOI :
10.1109/TDC.2003.1335148
