低压直流供电系统研究综述  

A Review of Low Voltage DC Power Distribution System

作　　者：雍静[1] 徐欣[1] 曾礼强[1] 李露露[1] 

机构地区：[1]输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市沙坪坝区400030

出　　处：《中国电机工程学报》2013年第7期42-52,20,共11页Proceedings of the CSEE

基　　金：中央高校基本科研业务费资助(CDJZR11150003)~~

摘　　要：随着分布式发电装置和电力电子设备在低压配电系统的广泛应用,采用直流供电方式的低压系统又显现出优越性,并引起学者的关注。迄今为止,学者们对低压直流系统的系统结构、负荷的兼容性、负荷模型、电能质量与可靠性、保护和控制、节能型评估等方面进行的初步研究表明:低压直流供电系统可以兼容目前大部分的低压负荷,可以对暂态过程进行有效的控制,并提高供电的连续性;特别是在具有分布式发电装置(如太阳能电池、风力发电、燃料电池)的低压系统中,低压直流(low voltage direct current,LVDC)供电系统在降低系统电能损耗、增强供电连续性和可靠性、提高电能质量方面,与交流系统相比,具有优越性,并且系统结构得以简化。同时,该文提出并讨论了低压直流系统需要进一步研究的问题。As the proliferations of distributed generation and power electronic equipment in low voltage systems,the advantages of low-voltage direct current（LVDC） power distribution systems emerged and attracted more and more researchers’ attentions.The existing literatures about system structures,compatibility and the model of the load,power quality and power supply reliability,system protection and controlling,energy-saving evaluation for LVDC show that LVDC systems are available to supply most of loads designed for low voltage AC（LVAC） systems,and can control transient process effectively to keep the supply continuity.Especially in the LVDC system including distributed generation devices（such as solar,wind power,fuel cells）,LVDC systems have enormous potential in energy saving,enhancing supply reliability and power quality,simplifying system structure in comparison with LVAC systems.This paper also presents the issues that need more research works and discussions.

关 键 词：低压直流供电系统 负荷模型 电能损耗 保护与控制 

分 类 号：TM72[电气工程—电力系统及自动化]