DSP和SVPWM技术的三相变频变幅逆变电源设计

通过对空间矢量脉宽调制算法的分析，研究了数字信号处理器生成SVPWM波形的实现方法及软件算法，设计了基于DSP数字控制的三相逆变电源。相关测试参数和结果表明，该设计提高了直流电压的利用率，使开关器件的损耗更小。此外，还提出了逆变电源闭环控制的PI控制算法，利用DSP强大的数字信号处理能力，提高了系统的响应速度。

Three-phase Variable Frequency and Ampl itude of lnverter Power Supply Based on DSP and SVPWM

Based on the analysis of the space vector pulse width modulation algorithm and the research of the digital signal processor gen-erating SVPWM waveform implementation and the software algorithms,a digital control three-phase inverter power based on DSP is de-signed.The test results show that the design has improved the utilization of the DC voltage,thus makes the loss of the switching device smaller.In addition,the closed-loop PI control algorithm in the inverter power is proposed.Using the powerful DSP digital signal process-ing capabilities,the response speed of the system is greatly improved.