110 kV擴大內橋接線的備自投策略優(yōu)化研究
安振華,金震,余群兵,董凱達,馮寶成
(南京南瑞繼保電氣有限公司,江蘇 南京 211102)
摘 要:針對一次接線為擴大內橋形式的變電站在分期建設過程中,前期斷路器配置不完整的情況,提出了基于原有備自投方式的適應性強的改進方法。設置了允許有主變停運的特殊方式,保證在特殊情形下的供電可靠性,并針對小電源接入后對備自投啟動條件的影響,提出了頻率變化啟動和位置不對應啟動的快速啟動策略,加速了備自投的動作過程,提升了快速恢復供電的能力。
關鍵詞:擴大內橋接線;運行方式;適應性;快速啟動策略
中圖分類號:TM762.1 文獻標識碼:A 文章編號:1007-3175(2016)12-0036-04
Research on Strategy Optimization of Spare Power Automatic
Switching for 110 kV Expanded Inner-Bridging Line
AN Zhen-hua, JIN Zhen, YU Qun-bing, DONG Kai-da, FENG Bao-cheng
(Nari-Relays Electric Co.,Ltd, Nanjing 2111 02, China)
Abstract: Aiming at the situation that the earlier stage circuit breakers were configured incompletely in stage construction process of transformer
substations with expanded inner-bridging line as primary connection, this paper proposed the adaptable improved method based on the
original spare power automatic switching mode. The special mode was set to allow the main transformer outage to ensure the power distribution
reliability under special conditions. In allusion to impacts of small power source connection on the starting condition of spare power automatic
switching, this paper raised the quick start strategy of frequency change starting and location non-correspondence starting, which speeds up the
action process of spare power automatic switching and promotes the capacity of quick power recovery.
Key words: expanded inner-bridging line; operation mode; adaptivity; quick starting strategy
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