基于DSP的单相电压型逆变器的研究与实现

Research and Implementation of Single-phase Voltage Type Inverter Based on DSP

介绍了电压型全桥逆变电路的基本结构和工作原理。在此基础上,设计了基于DSP的硬件测试平台,并提出了在DSP中产生SPWM(正弦脉冲宽度调制)的方法,采用了PI调节的闭环控制算法。离线计算参考电压的方法减轻了系统负担。经试验验证,该方法可行,效果较好。

The basical structure and work principle of voltage type bridge inverter circuit is stated in this paper.Based on the statement,a hardware test platform based on DSP is designed,and the method of producing SPWM(Sinusoidal Pulse Width Modulation) in DSP is proposed.This system use PI regulator and Closed-loop control algorithm.The method of offline calculation reduce burden of the system.lt has been demonstrated that the design is practicable by experiment and has a good result.