本文设计研制了一种以兼具快速处理和高速计算功能的dsPIC30F6014A处理器作为主控器，采用SPWM算法和恒压频比控制策略的电机变频调速系统。该系统结构简单，可靠性强，人机交互性良好，适用于工业电机数字化自动控制的领域，具有一定的实用价值和推广前景。%The article designs a variable frequency system for motors based on dsPIC30F6014A which has rapid processing ability and high-speed computing power.It uses SPWM and frequency algorithm system of constant ratio voltage.The system is safe and reliable,with simple structure and good human-computer interaction.So it is applicable in the field of automatic control of industrial digital motors,and has a certain practical value and promotion prospect.
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