摘要
PID控制和二次型最优控制这两种控制方法的侧重性是不同的。PID控制是基于时域描述的控制方法,而二次型最优控制基于频域描述控制方法,但是这两种控制方法之间也有着相关的联系。根据这种思路,首先详细地分析了无刷直流电机(BLDCM)相关数学模型,然后分别对PID控制系统以及二次型最优控制系统进行针对性的类比分析研究,将二次型最优PID控制应用到BLDCM的控制中。在MATLAB仿真平台上,将BLDCM各个功能相关的模块与S函数结合,搭建BLDCM的系统仿真模型,并得到仿真和试验结果与理论分析一致的结果,证明了方案的合理性、有效性。
Linear quadratic optimal control and PID control were not the same, PID control was a control method based on time-domain analysis, and linear quadratic optimal control was based on the frequency-domain description of the control method, but they have close relationship to each other. According to this line of thinking, through linear optimal control system and PID control systems were analyzed, presented a method of linear quadratic optimal PID was applied in the control system of the brushless DC motor, based on the analysis brushless DC motor mathematical model. Finally, in the MATLAB simulation environment, the independent function modules and S-functions combine to build a BLDC simulation model, simulation and experimental results with theoretical analysis, which proved that the proposed control method was correct and effective.
出处
《电机与控制应用》
北大核心
2016年第11期47-53,共7页
Electric machines & control application
关键词
无刷直流电机
PID控制
线性二次最优控制
brushless DC motor（BLDCM）
PID control
linear quadratic optimal control
