STATCOM与发电机励磁和汽轮机调门非线性协调滑模控制研究Design of Nonlinear Coordinated Sliding Mode Controllers for STATCOM and Steam-valving and Excitation System
赵岳恒,王奔,邹超,杜继伟
ZHAO Yue-heng,WANG Ben,ZOU Chao,DU Ji-wei(School of Electrical Engineering
摘要(Abstract):
基于单机无穷大系统,建立了静止同步补偿器(static synchronous compensator,STATCOM)的数学模型,设计了变结构协调控制器。采用直接反馈对系统进行全局线性化,运用变结构控制方法,设计了STATCOM无功电流与发电机励磁、汽轮机调门的非线性滑模协调控制器,可以同时满足发电机励磁、汽机调门与STATCOM装设处电压稳定要求。对单机—无穷大系统进行了数字仿真,结果表明控制器能有效改善系统稳定性。
A mathematic model of static synchronous compensator(STATCOM) as well as a controller using nonlinear variable structure control strategy is presented in the paper based on a one-machine infinite bus system.The system was global linear by using direct feedback linearization and the controller for the reactive current of STATCOM and the generator excitation,steam-valving system was designed by variable structure control method,which can meet the requirement of stability of generator power angle and that of STATCOM voltage.Numerical simulation of one machine-infinite bus system shows that the controller is effective and advantageous.
关键词(KeyWords):
STATCOM;变结构控制;非线性控制;汽门励磁协调控制
STATCOM;variable structure control;nonlinear control;excitation and steam-valving coordinate control
基金项目(Foundation):
作者(Author):
赵岳恒,王奔,邹超,杜继伟
ZHAO Yue-heng,WANG Ben,ZOU Chao,DU Ji-wei(School of Electrical Engineering
DOI: 10.19585/j.zjdl.2009.02.001
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- STATCOM
- 变结构控制
- 非线性控制
- 汽门励磁协调控制
STATCOM - variable structure control
- nonlinear control
- excitation and steam-valving coordinate control