高比例新能源電力系統(tǒng)對繼電保護(hù)
的影響及對策

Impact and Countermeasures of Relay Protection in Power Systems with High Proportion of Renewable Energy

摘要: 新能源裝機(jī)量持續(xù)提升，電網(wǎng)復(fù)雜故障增加，給電力系統(tǒng)繼電保護(hù)提出了新挑戰(zhàn)。從暫態(tài)特性改變、電網(wǎng)脆弱性增加、運(yùn)行方式時(shí)變?nèi)齻€(gè)方面闡述了高比例新能源接入對電力系統(tǒng)繼電保護(hù)的影響，進(jìn)而在利用大數(shù)據(jù)技術(shù)挖掘故障特征量、構(gòu)建以特征量指標(biāo)為故障判據(jù)的繼電保護(hù)新技術(shù)，構(gòu)建以變電站間數(shù)據(jù)交互為關(guān)鍵技術(shù)的站域保護(hù)等方面闡述了解決思路。

Abstract: The continuous increase in new energy installations and the rise in grid faults pose new challenges to power system relay protection. This paper discusses the impact of high - proportion new energy access on power system relay protection from three aspects: transient characteristic changes, increased grid vulnerability, and variable operation modes. It also elaborates on solutions, such as using big data technology to identify fault characteristics, developing new relay protection technologies based on characteristic indicators, and creating substation - based protection with data interaction between stations as a key technology.

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