基于内模控制的变频调速方案的设计

Design of Frequency Control Strategy Based on Internal Model Control

基于内模控制的优点,分析了异步电机的内模解耦控制,在此基础上提出一种基于内模控制的变频调速方案。该方案具有结构简单,容易实现,调速精度高等优点。根据设计方案建立了仿真模型和实验平台,结果表明,电机在变频调速过程中电压和电流变化平稳,速度响应快,调速精度高,证明了该方案的有效性。

The decoupling control of asynchronous motor is analyzed according to the advantage of internal model con- trol, and a frequency control strategy is proposed based on internal model control.The strategy has some features such as simple,easy,accurate and so on.The simulation model and experimental platform are established according to the strategy.The results show that the motor has a stable voltage and current,fast response and accurate speed,the effectiveness of the strategy is proved.