电源主电路设计及闭环控制仿真

2020 5th International Conference on Information Science, Computer Technology and Transportation (ISCTT) Pub Date : 2020-11-01 DOI:10.1109/ISCTT51595.2020.00036

Lu Wei, Pan Shenmin, Huang Yiyun, Feng Hulin

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引用次数: 0

摘要

针对单个PSM电源模块直流输出电压不可调的问题，提出了将直流-直流电源串联到PSM电源模块上，使输出侧直流电压连续可调的方法。输出电压在750-800V范围内连续可调，输出电流为80A，电压纹波率为1.5%。为了使系统稳定工作，本文设计了一个闭环反馈控制系统。最后利用simulink建立仿真模型，将输出电压调节在750 ~ 800v范围内，纹波率为1.25%，验证了主电路设计的正确性。

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The main circuit design and closed-loop control simulation of power supply

To solve the problem that the DC output voltage of a single PSM power module is not adjustable, a method of connecting a DC-DC power supply in series with the PSM power module is proposed to make the DC voltage on the output side continuously adjustable. The output voltage is continuously adjustable within 750-800V, the output current and the voltage ripple rate are respectively 80A, 1.5%. In order to make the system work stably, this paper designs a closed-loop feedback control system. Finally, a simulation model was built with simulink, the output voltage was regulated within 750-800V, and the ripple rate was 1.25%, which verified the correctness of the main circuit design.

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2020 5th International Conference on Information Science, Computer Technology and Transportation (ISCTT)

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