汽轮发电机组汽门开度和励磁系统的自抗扰综合控制  

NONLINEAR COORDINATED AUTO-DISTURBANCE-REJECTION GOVERNOR AND EXCITATION CONTROLLER FOR SYNCHRONOUS GENERATORS

作　　者：余涛[1] 沈善德[1] 李东海[2] 朱守真[1] 

机构地区：[1]清华大学电机系,北京市100084 [2]清华大学热能系,北京市100084

出　　处：《电力系统自动化》2003年第3期36-41,共6页Automation of Electric Power Systems

基　　金：国家自然科学基金资助项目 (5 0 2 770 2 1) ;国家电力公司科技资助项目 (SP(2 0 0 2 ) 1812 4)~~

摘　　要：通过构造扩张状态观测器对受控对象内环进行动态输出反馈线性化 ,对补偿线性化后的对象外环进行预期动力学设计的方法 ,提出了基于自抗扰技术的汽轮发电机汽门和励磁综合控制策略。本控制方法解决了传统单输入单输出自抗扰控制方法在处理多输入多输出对象时协调率难以确定的问题。数字仿真表明 ,该控制方法不仅能较好地处理汽门和励磁控制的协调性 ,而且对模型的内外扰表现出了很好的适应性和鲁棒性。This paper develops a novel coordinated nonlinear auto-disturbance-rejection controller for the steam valve and the exciting system of thermal generating units. A new dynamic feedback linearization method based on a nonlinear extended state observer is introduced, and the anticipating dynamic characteristic design for the linearized system is also demonstrated. The simulation results show that the designed controller has excellent control performance, especially including outstanding adaptability and robustness against external disturbances and model uncertainties.

关 键 词：汽轮发电机组 汽门开度 励磁系统 自抗扰综合控制 反馈线性化 

分 类 号：TM761.11[电气工程—电力系统及自动化]