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低压直流供电系统研究综述

, PP. 42-52

Keywords: 低压直流供电系统,负荷模型,电能损耗,保护与控制

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Abstract:

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(lowvoltagedirectcurrent,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。

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