永磁同步电机单闭环直接转矩控制策略研究

发布时间：2018-06-15 18:09

本文选题：永磁同步电机 + 直接转矩控制　；参考：《微电机》2014年12期

【摘要】：为解决双闭环直接转矩控制系统参数整定困难、转矩脉动大等问题,提出一种基于电压空间矢量调制法的转速单闭环直接转矩控制系统,将转速调节器输出直接作为系统期望转矩角以简化系统结构。设计一种改进型比例积分控制器,限制积分环节在转速上升阶段的误差累积,采用非线性函数实现小误差大增益特性,兼顾了系统抗扰性与超调量要求,通过仿真证明了设计方法的合理性和有效性。
[Abstract]:In order to solve the problem of parameter setting and torque ripple of double closed loop direct torque control system, a single closed loop direct torque control system based on voltage space vector modulation is proposed. The output of the speed regulator is taken as the expected torque angle of the system directly to simplify the system structure. An improved proportional integral controller is designed, which limits the error accumulation of the integral in the stage of speed rise. The nonlinear function is used to realize the characteristics of small error and large gain, and the anti-disturbance and overshoot requirements of the system are taken into account. The rationality and validity of the design method are proved by simulation.
【作者单位】：空军工程大学航空航天工程学院;
【分类号】：TM341

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