基于電機驅(qū)動技術(shù)的三工位隔離/接地開關(guān)操作機構(gòu)設(shè)計
楊春月1,2,呂敏1,2,方啟2,呂尋浩1,2,高延峰1,2,張濤鋒1,2,陳東1,2,陳蕾1,2
(1 河南平芝高壓開關(guān)有限公司,河南 平頂山 467013;
2 河南平高電氣股份有限公司,河南 平頂山 467001)
摘 要: 針對目前高壓隔離開關(guān)在操作過程中存在的可控性差,難以實現(xiàn)動觸頭的精準控制,控制回路復(fù)雜,分合閘指令需要通過繼電器輸入,容易出現(xiàn)隔離開關(guān)誤動的問題,提出了一種集成化、智能化、可強電輸入輸出、雙閉環(huán)精準控制的隔離/接地開關(guān)電機直驅(qū)操作機構(gòu)。該操作機構(gòu)根據(jù)隔離開關(guān)動觸頭運動曲線,通過對電機電流、速度、位置信號進行采集,運用 SVPWM 電壓矢量控制算法,實現(xiàn)對隔離/接地開關(guān)運動過程的精準控制。試驗結(jié)果表明:該操作機構(gòu)從收到動作信號到動作結(jié)束時間短,啟動后可在很短時間內(nèi)達到預(yù)設(shè)速度,整個動作過程中機構(gòu)輸出穩(wěn)定、波動小,有效提高了隔離/接地開關(guān)的可靠性。
關(guān)鍵詞: 電機驅(qū)動;高壓隔離/ 接地開關(guān);操作機構(gòu);SVPWM 算法;伺服電機;精準控制
中圖分類號:TM564.1 文獻標識碼:A 文章編號:1007-3175(2024)06-0059-06
Design of the Operating Mechanism of the Three-Station Disconnecting/
Earthing Switch Based on Motor Drive Technology
YANG Chun-yue1,2, LYU Min1,2, FANG Qi2, LYU Xun-hao1,2, GAO Yan-feng1,2, ZHANG Tao-feng1,2, CHEN Dong1,2, CHEN Lei1,2
(1 Henan Pingzhi High-Voltage Switch Co., Ltd, Pingdingshan 467013, China;
2 Henan Pinggao Electric Co., Ltd, Pingdingshan 467001, China)
Abstract: In view of the poor controllability of the current high-voltage disconnecting switch in the operation process, it is difficult to realize the precise control of the moving contact, the control loop is complex, and the opening and closing instructions need to be input through the relay, which is prone to the problem of misoperation of the disconnecting/earthing switch. In this paper, an integrated and intelligent,strong electrical input and output, double closed-loop precise control of disconnecting/earthing switch motor drive operating mechanism is proposed. According to the moving contact curve of the disconnecting/earthing switch, the operating mechanism collects the current, speed and position signals of the motor, and uses the SVPWM voltage vector control algorithm to realize the precise control of the movement process of the disconnecting/earthing switch. The test shows that the motor drive operating mechanism has a short time from receiving the action signal to the end of the action, and can reach the preset speed in a very short time after starting, and the output of the mechanism is stable and the fluctuation is small in the whole action process, which effectively improves the reliability of the disconnecting/earthing switch.
Key words: motor drive; high-voltage disconnecting/earthing switch; operating mechanism; SVPWM algorithm; servo motor ; precise control
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