變電站安自裝置相繼動作事件分析及預防措施
張春剛1,羅璐2
(1 云南電網有限責任公司昆明供電局,云南 昆明 650200;
2 昆明鐵道職業技術學院 電氣工程學院,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作實例為依據,根據變電站現場監控報文及保護裝置動作記錄、潮流分布等信息,分析了故障期間含小電源的變電站內低頻低壓減載裝置和備自投保護裝置動作邏輯順序,并提出了低頻低壓減載裝置和備自投保護裝置的動作邏輯優化措施,以盡可能減小對電網系統及負荷的影響,促進電網系統的可靠穩定運行。
關鍵詞: 變電站;低頻低壓減載裝置;備自投裝置
中圖分類號:TM63 ;TM762 文獻標識碼:B 文章編號: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
參考文獻
[1] 李順,唐飛,廖清芬,等. 計及需求響應的智能化微網頻率緊急控制策略[J] . 中國電機工程學報,2018,38(1):51-60.
[2] 劉茂集,顧丹珍,郭強,等. 負荷低壓釋放對低壓減載策略的影響[J] . 現代電力,2016,33(5):74-79.
[3] 代運滔, 安小波, 安萬, 等. 一種多后備電源的備用電源自動投入系統[J] . 廣東電力,2018,31(2):136-141.
[4] 高學民,么莉,張輝,等. 基于負荷頻率特性的低頻減載方案優化[J] . 電力系統及其自動化學報,2015,27(2),82-88.
[5] 李鵬飛,顧雪平,楊超,等. 考慮潮流轉移對系統影響的低頻減載方案優化[J] . 電力系統保護與控制,2018,46(18):156-163.
[6] 孫毅,李澤坤,劉迪,等. 可控負荷參與低頻減載的動態集群優化控制策略[J] . 中國電機工程學報,2018,38(7):1913-1921.
[7] 李霞,李巖松,張澤鋒,等. 基于頻率差變化率的快速低頻減載方法[J] . 電氣應用,2017,36(8):80-85.
[8] 黃淼,文旭,劉育明,等. 地區電網孤網運行事件的實例分析[J] . 電力系統保護與控制,2018,46(13):166-170.
[9] 李順,廖清芬,劉滌塵,等. 計及電壓穩定的自適應協調低頻減載策略[J] . 電力自動化設備,2017,37(12):157-163.
[10] 王磊,賈燕冰. 考慮暫態性能的電網低頻低壓協調減載策略[J]. 電氣應用,2015,34(8):28-32.