电力电子设备对直流配电网可靠性影响Effects of Power Electronic Devices on DC Distribution Reliability
史清芳;徐习东;赵宇明;
摘要(Abstract):
与传统交流配电网不同,直流配电网主要由大量电力电子设备构成,为评估其可靠性,建立了电压源型换流器、直流变压器和直流断路器的可靠性模型,分析了器件级冗余和设备级冗余对直流配电网可靠性指标的影响,对比分析了是否区分功能故障和绝缘故障对直流配电网可靠性指标的影响。并以双端电源直流配电系统为例,对这些影响因素进行了定量分析。研究结果表明,设备级冗余比器件级冗余更能有效地提高系统的可靠性,是否区分功能故障和绝缘故障主要对配备较少直流断路器的直流配电网的可靠性评估有影响。
关键词(KeyWords): 直流配电网;可靠性;器件冗余;设备冗余;功能故障;绝缘故障
基金项目(Foundation): 国家863高技术基金项目(2013AA050104)~~
作者(Author): 史清芳;徐习东;赵宇明;
Email:
DOI: 10.13335/j.1000-3673.pst.2016.03.010
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