Abstract
Starting from the defects of analog power supply. Based on the analysis of space vector pulse width modulation algorithm, a three-phase variable frequency variable amplitude inverter power supply based on SVPWM technology is studied. On this basis, the PI control algorithm for closed-loop control of inverter power supply is also proposed. In order to improve the system response speed, the DSP with powerful digital signal processing capability was designed as the hardware platform, and various related verification experiments were completed. The results show that the system realizes a voltage-regulated output with a step of 1 V and a range of 40 V and an FM output with a step of 2Hz and a range of 50Hz to 1kHz. The system has small load regulation rate, excellent performance and good application prospects.
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