變電站安自裝置相繼動(dòng)作事件分析及預(yù)防措施
張春剛1,羅璐2
(1 云南電網(wǎng)有限責(zé)任公司昆明供電局,云南 昆明 650200;
2 昆明鐵道職業(yè)技術(shù)學(xué)院 電氣工程學(xué)院,云南 昆明 650208)
摘 要:以一起某 110 kV 變電站低頻低壓減載裝置和備自投裝置相繼動(dòng)作實(shí)例為依據(jù),根據(jù)變電站現(xiàn)場(chǎng)監(jiān)控報(bào)文及保護(hù)裝置動(dòng)作記錄、潮流分布等信息,分析了故障期間含小電源的變電站內(nèi)低頻低壓減載裝置和備自投保護(hù)裝置動(dòng)作邏輯順序,并提出了低頻低壓減載裝置和備自投保護(hù)裝置的動(dòng)作邏輯優(yōu)化措施,以盡可能減小對(duì)電網(wǎng)系統(tǒng)及負(fù)荷的影響,促進(jìn)電網(wǎng)系統(tǒng)的可靠穩(wěn)定運(yùn)行。
關(guān)鍵詞: 變電站;低頻低壓減載裝置;備自投裝置
中圖分類號(hào):TM63 ;TM762 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):1007-3175(2022)10-0036-04
Analysis and Precaution of Sequential Tripping Action of
Automatic Stability Control Device in a Substation
ZHANG Chun-gang1, LUO Lu2
(1 Kunming Power Supply Bureau of Yunnan Power Grid Co., Ltd, Kunming 650200, China;
2 School of Electrical Engineering, Kunming Railway Vocational and Technical College, Kunming 650208, China)
Abstract: This paper took the sequential tripping action of the low-frequency and low-voltage load shedding device and the reserve power automatic input protection device in a 110 kV substation as an example. It proposed optimization measures of the logic of action to reduce the impact on the power system and network load and promote reliable and stable operation after analyzing the logical sequence of the sequential tripping action of the low-frequency and low-voltage load shedding device and the reserve power automatic input protection device based on information from substation monitoring reports, an action record of the protective device, the power flow distribution, etc. It also proposed optimization measures of the logic of action to reduce the impact on the power system and network load and promote reliable and stable operation.
Key words: substation; low-frequency and low-voltage load shedding device; reserve power automatic input protection device
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