论文部分内容阅读
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 new achievement in the field of control - the nonlinear PID method applied to the DC power transmission modulation controller has made a more systematic study. Firstly, the basic element of the nonlinear PID method, the tracking differentiator, is improved to improve its performance. The method is applied to the design of nonlinear robust DC modulation controller. Due to the consideration of the nonlinearity of the power system and the dependence of the control law on the model parameters, the designed DC modulation controller has strong adaptability to the disturbances and the uncertainties of the model. The simulation results show that, compared with the previous DC modulation controller, this nonlinear robust DC modulation controller can better improve the system stability and improve the dynamic characteristics of the system.