Design of Parallel Power Supply Control for Communication Storage Battery Pack Based on SPWM
In order to improve the stability of the whole power supply system,the design of parallel power supply control based on Sinusoidal Pulse Width Modulation(SPWM)is proposed.The design first adopts the unipolar frequency doubling SPWM modulation technology to effectively adjust the equivalent switching frequency of the power supply system,and then combined with the sinusoidal internal mode,the transfer function in the open ring of the parallel battery is designed to determine the input value of the current parameter on the rectifier side,so as to realize the parallel power supply control.The test results show that by applying the proposed method,even if the power supply difference between the battery packs is always controlled within 40.0 W,and the application effect is good.
communication power supply systemparallel power supplySinusoidal Pulse Width Modulation(SPWM)equivalent switching frequency
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维普
