Title :
Decentralized optimal control of generator excitation and STATCOM based on DFP method
Author :
Azizi, S.M. ; Yazdani, D. ; Bakhshai, A. ; Jain, P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, Que.
Abstract :
A trade-off between voltage regulation and power oscillation damping is achieved by cooperative effort of excitation and STATCOM in this paper. This end is embodied by a predefined linear quadratic regulator (LQR) performance index. Since, in practical power systems, decentralized control is highly desirable for its relatively low cost and high reliability, the controller designing procedure is formulated into an optimization problem constrained by a decentralized structure. A direct iterative DFP-based algorithm is proposed to set the decentralized feedback gains. Simulation results confirm the validity of the proposed scheme
Keywords :
control system synthesis; damping; decentralised control; feedback; iterative methods; linear quadratic control; optimisation; performance index; power system control; power system stability; static VAr compensators; voltage control; voltage regulators; STATCOM; controller design; decentralized control; decentralized feedback gain; direct iterative DFP-based algorithm; generator excitation; linear quadratic regulator; optimal control; optimization problem; power oscillation damping; power system; static synchronous compensators; voltage regulation; Automatic voltage control; Damping; Distributed power generation; Optimal control; Performance analysis; Power system control; Power system reliability; Power system simulation; Regulators; Voltage control;
Conference_Titel :
Control Applications, 2005. CCA 2005. Proceedings of 2005 IEEE Conference on
Conference_Location :
Toronto, Ont.
Print_ISBN :
0-7803-9354-6
DOI :
10.1109/CCA.2005.1507194
