All-digital naturally sampling SPWM control method and system based on FPGA
A technology of natural sampling and control method, applied in output power conversion devices, electrical components, conversion of AC power input to DC power output, etc., can solve the problems of low performance index and low switching times, and achieve fast response speed and output The effect of low harmonic content
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[0041] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.
[0042] Taking three-level as an example, the present invention, based on the basic principles of three-level natural sampling SPWM, combined with FPGA technology, completes the calculation of the switching time of each switching device of the three-level inverter and the judgment and output of the on-off state according to the law. Control algorithm block diagram such as figure 1 Shown.
[0043] The FPGA-based fully digital three-level natural sampling SPWM control algorithm of the embodiment of the present invention, the digital functional block diagram is as follows figure 1 As shown, the digi...
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