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Based on the space vector pulse width modulation algorithm analysis and research of the digital signal processor generates SVPWM waveform implementation and software algorithms. With the methods used in practice, a digital control three-phase inverter power based on DSP is developed. Relevant test parameters and results show that the design has improved the utilization of the DC voltage, thus making the loss of the switching device smaller. In addition, the closed-loop PI control algorithm is introduced in the inverter power. By the use of the powerful DSP digital signal processing capabilities, the response speed of the system is greatly improved. The system has been tested to achieve 1~40V voltage output regulated with 1V step, and 50Hz~1 kHz frequency output modulated with 2Hz step. When the output voltage keeps constant at 36V, its load regulation is less than 5%.

Designed of Pure electric vehicle driving motor and vehicle control system based on DSP and bidirectional Z source inverter