基于DC-DC变换的变电站直流电源设计

Design of Substation DC Power Supply Based on DCDC Conversion

阐述后备电源的性能,依据综合理论分析双重Boost升压变换器法。采用中间电流均流的控制法相关方案阻止直流电源在并联运行的过程中出现的环流与电流不均衡的现象,从而使升压后的电源实现互联。利用Matlab/Simulink软件搭载仿真模型,通过仿真数据分析得出结论为双重Boost升压法是所有升压办法中最具有优势的办法,同时可以有效降低电路中功率元件的电流。

This paper describes the performance of backup power supply,and analyzes the dual boost converter method according to the comprehensive theory.The control method of intermediate current sharing and related schemes are adopted to prevent the circulation and current imbalance in the process of parallel operation of DC power supply,so as to realize the interconnection of boosted power supply.Using Matlab/Simulink software to carry the simulation model,through the analysis of simulation data,it is concluded that the double boost boost method is the most advantageous method among all boost methods,and can effectively reduce the current of power components in the circuit.