基于免疫网络理论的永磁同步电机控制

摘 要：PID控制器有着广泛的应用，其参数也有多种智能调整方法。本文分析了免疫系统的免疫网络理论，提出了一种用免疫网络理论调整PI控制器的策略，并用于永磁同步电机的直接转矩控制的调速系统，以克服电阻变化引起磁链控制器输出不准确，影响控制精度的问题。该策略计算简单，在永磁同步电机定子电阻变化较大情况下，仍具有高控制精度。仿真结果验证了这一免疫网络理论控制策略的有效性，并与一般PI控制和采用遗传算法的PI控制的效果进行了比较。

An Immune Network Based Permanent Magnet Synchronous Motor Control

Abstract: PID controllers are widely used in various applications, and many intelligent methods for their parameter adjusting have been developed. The paper analyzed the immune network theory of immune system, and presented a scheme for the adjustment of PI controller based on the theory. The scheme was used in a direct torque controlled permanent magnet synchronous motor speed control system to overcome the influence upon the accuracy of speed adjusting caused by the stator resistance variation and the consequent variation of flux controller. The scheme was simple in calculation, and was in high accuracy even with a big change of the stator resistance. Simulation results were be compared with that of normal PI control and of PI control with genetic algorithm, and the results showed the effectiveness of the scheme.