【摘要】 针对工程中双馈感应电机转子电流控制器参数整定的问题,提出一种利用内模控制理论设计转子电流控制器的鲁棒控制方法。首先定义内模控制的灵敏度函数和互补灵敏度函数,并推导双馈感应电机转子电流控制系统传递函数,建立了转子电流内环的内模数学模型。IMC控制器的设计以平方积分误差值和鲁棒稳定M值为准则,并与传统比例积分控制器进行比较。通过对1.5 MW双馈感应电机的MATLAB/SIMULINK仿真表明,本文方法稳态跟踪精度高、动态响应快、对模型误差和外界干扰具有较好的鲁棒性。最后在11 k W的双馈风机实验平台上验证了所提方法的有效性。更多还原

【Abstract】 Aiming at the parameter tuning of rotor current controller of doubly fed induction generator in engineering,a robust control method for designing rotor current controller based on Inter Model Control( IMC) theory is proposed. Firstly,the sensitivity function and complementary sensitivity function of IMC are defined,the transfer function of the rotor current control system of doubly-fed induction generator is deduced,and the inter model mathematic model of the rotor current inner loop is established. The design of the IMC controller takes the dynamic performance of integral square error value and the robust stable M value as the criteria,which is compared with traditional PI controller. The MATLAB/SIMULINK simulation on 1. 5 MW doubly-fed induction generator shows that the proposed method has high stable state tracking accuracy,fast dynamic response and good robustness against the model error and external disturbance. Finally,the effectiveness of the proposed method was verified on the 11 k W DFIG test platform.更多还原