新型非线性鲁棒直流输电调制器的研究  

Novel nonlinear robust HVDC modulation controller

作　　者：焦连伟[1] 陈寿孙[1] 张宝霖[1] 

机构地区：[1]清华大学电机工程与应用电子技术系电力系统及发电设备控制和仿真国家重点实验室

出　　处：《清华大学学报（自然科学版）》1997年第S1期73-76,共4页Journal of Tsinghua University(Science and Technology)

基　　金：国家"攀登计划B"项目

摘　　要：对控制领域的新成果——非线性ＰＩＤ方法应用于直流输电调制控制器做了较为系统的研究。首先对非线性ＰＩＤ方法的基础元件——跟踪微分器进行了改进，以提高其性能。并将该方法用于非线性鲁棒直流调制控制器的设计中。由于既考虑了电力系统的非线性又避免了控制规律对模型参数的依赖，所设计的直流调制控制器对扰动和模型的不确定因素都有很强的适应能力。仿真结果表明，与以往的直流调制控制器相比，这种非线性鲁棒直流调制控制器可以更好地提高系统的稳定性和改善系统的动态特性。The application of nonlinear PID method, which is a latest achievement in the field of control technology, in high voltage direct current (HVDC) modulation controller is studied. Tracking differentiator as an elementary unit for nonlinear PID technology is improved so that it can yield better differential signal. A novel nonlinear robust HVDC modulation controller is designed. For nonlinear PID approach is independent of the controlled system model, the novel controller manifests robustness for both equilibrium and uncertainty of models. Simulation results performed on a two machine system validate the robustness and demonstrate the controller is effective in improving the system stability and enhancing the dampness.

关 键 词：跟踪微分器 非线性 直流调制 稳定性 

分 类 号：TN271[电子电信—物理电子学]