Nonlinear excitation controller design for power systems:an I&I approach

作     者：Rongxiang YUAN Yang RUAN Po HU Rongxiang YUAN;Yang RUAN;Po HU

作者机构：School of Electrical EngineeringWuhan University 

出 版 物：《控制理论与应用（英文版）》 (控制理论与应用)

年 卷 期：2012年第10卷第4期

页      面：554-558页

核心收录：

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

主　　题：Power systems Excitation control Nonlinear control Immersion and invariance 

摘      要：The Immersion and Invariance （I＆I） methodology provides a novel approach for nonlinear system control, which is distinct from the traditional feedback linearization and backstepping method. In this paper, a new excitation controller is designed for single machine infinite bus system （SMIBS） based on the I＆I approach. Firstly the dynamic model of SMIBS is homeomorphously transformed to a specific form for which a stable lower-order target system is selected. Then the I＆I excitation controller is designed by immersing the transformed system into the target system. Simulation results from PSCAD/EMTDC demonstrate that the proposed controller guarantees transient stability of the system after large disturbances.