一种双闭环控制方法在射频电源中的仿真应用

Application on RF Power Supply's double loop control algorithm by simulation

传统的PID控制技术由于其算法简单,实现简易以及可靠性高等优点,能够对相当大一类的工业对象进行有效控制,特别是可以建立精确数学模型的确定性控制系统。但是,对于非线性、时变不确定的负载,传统的PID控制方式,难以达到理想的控制效果。本文引入了一种电流,电压双闭环反馈控制技术,设计了一种双闭环控制方式,并用simulink仿真软件进行了相关仿真。结果表明,逆变器输出稳定、波形畸变小、对负载有较好的适应性。

Traditional PID control technology due to its simple algorithm, simple and high reliability could effective control most of industrial objects.The traditional PID control method, due to the tedious parameter setting method, is hard to get the desired effect.Hence, double loop control algorithm is a solution.By the way of simulation, the choose of control parameters are tested and verified.