Title :
Design and application of decentralized nonlinear H∞ control for stability enhancement in power systems
Author :
Li, G.J. ; Lie, T.T. ; Soh, C.B. ; Yang, G.H.
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Inst., Singapore
Abstract :
The paper presents a method of designing a decentralized nonlinear H∞ excitation control of the generator in power systems. The proposed controller is utilized to damp inter-area oscillations and enhance power system stability. The decentralized controller design procedure for nonlinear systems is presented by using the Hamilton-Jacobi inequality approach. The control is local or decentralized in the sense that the controller depends only on the information available locally. The effectiveness of the proposed decentralized nonlinear H∞ controller is demonstrated through digital simulation studies on a nine-bus power system with three generators buses and three loads buses. The digital simulation studies are conducted using the PSCAD/EMTDC software package.
Keywords :
H∞ control; control system CAD; damping; decentralised control; nonlinear systems; power system stability; vibration control; H∞ control; Hamilton-Jacobi inequality; damping; decentralized control; electric generator; inter-area oscillations; nonlinear control; nonlinear systems; power systems; stability; Control systems; Design methodology; Digital simulation; Distributed power generation; Nonlinear control systems; PSCAD; Power generation; Power system control; Power system stability; Power systems;
Conference_Titel :
Control Applications, 1998. Proceedings of the 1998 IEEE International Conference on
Print_ISBN :
0-7803-4104-X
DOI :
10.1109/CCA.1998.721682
