磁力搅拌设备中无刷直流电机控制系统的设计与仿真

Design and simulation of brushless DC motor control system for magnetic stirrer apparatus

针对磁力搅拌设备,设计了一套无刷直流电机H桥驱动电路;建立了无刷直流电机的数学模型,分析了专家PID的控制原理和优点;在Matlab环境下,设计了实际系统的专家PID控制器;最后,将系统的运行数据上传至上位机,并对实际运行情况进行了分析。分析表明,控制系统设计较合理,对无刷直流电机的设计和应用具有一定的参考价值。

A BLDC motor H bridge driver circuit is designed for the magnetic stirrer apparatus .The mathematic model of BLDC motor is established , and the advantage of expert PID is analyzed and de-signed based on Matlab in this paper .At last, the measurement data is uploaded to the host computer and analyzed .The analysis shows that the designed control system is reasonable , and has a certain reference value for BLDC motor using and design .