直流区域配电系统母线电压等级问题研究

Research on DC Bus Voltage Level for DC Zonal Electrical Distribution System

为了分析论证提高综合电力系统直流区域配电分系统母线电压等级的可行性,采用对比研究方式,将设置电压等级为710 V的传统方案和设置电压等级为1 000 V的新方案进行优缺点对比。最后,基于理论分析、仿真和试验结果,验证了1 000 V新方案具有更明显的优势。

In order to analyze and prove the feasibility of improving the voltage level of DC zonal electrical distribution subsystem in the integrated power system,this paper compares the advantages and disadvantages of the traditional scheme of setting the voltage level of 710 V and the new scheme of setting the voltage level of 1 000 V by using the comparative research method. The comparison is mainly reflected in three aspects. One is the analysis of the safe operating area of inverter equipment in the DC zonal electrical distribution system; the other is the analysis of the output power quality of the DC zonal electrical distribution system. The third is the protection characteristic of the DC zonal electrical distribution system and other attributes comparative analysis. Finally,the theoretical analysis,the simulation and experimental results verify that the new 1 000 V scheme has more obvious advantages.