Decentralised nonlinear H_∞ control for stability enhancement in power systems

作     者：Li, GJ Lie, TT Soh, CB Yan, GH 

作者机构：Nanyang Technol Univ Sch Elect & Elect Engn Singapore 639798 Singapore 

出 版 物：《IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION》 (IEE Proc Gener Transm Distrib)

年 卷 期：1999年第146卷第1期

页      面：19-24页

核心收录：

学科分类：0808[工学-电气工程] 080802[工学-电力系统及其自动化] 08[工学] 

主　　题：decentralised control Power engineering computing damping inter-area oscillations damping H∞ control nonlinear control systems PSS Optimal control control simulation control design Nonlinear control systems Hamilton-Jacobi inequality approach power system stability enhancement control system synthesis Multivariable control systems Control system design and analysis power system analysis computing Control system analysis and synthesis methods computer simulation two-machine power system PSCAD/EMTDC software package Control of electric power systems power system control Stability in control theory control system analysis computing decentralised nonlinear H∞ control Power system control power system stability 

摘      要：A method for designing the decentralised H-infinity excitation control of a generator in power systems is presented. The proposed controller is utilised to damp inter-area oscillations and enhance power system stability. The decentralised controller design procedure for nonlinear systems is presented using the Hamilton-Jacobi inequality approach. The control is local or decentralised, in the sense that the controller depends only on the information available locally. The effectiveness of the proposed decentralised H-infinity controller is demonstrated through digital simulation studies on a two-machine power system. The digital simulation studies are conducted using the PSCAD/EMTDC software package. The simulation results show that the controller contributes significantly to the damping of interarea oscillations and the enhancement of power system stability under a wide range of operating conditions.