地線融冰自動(dòng)接線裝置遠(yuǎn)程控制系統(tǒng)的安全策略
徐望圣1,曹偉偉2,王鄭1,陳作新2,孫志林1
(1 中國南方電網(wǎng)有限責(zé)任公司超高壓輸電公司貴陽局,貴州 貴陽 550081;
2 南京電力金具設(shè)計(jì)研究院有限公司,江蘇 南京 211500)
摘 要:遠(yuǎn)程控制地線融冰自動(dòng)接線裝置可提高輸電線路地線的融冰效率,同時(shí)也會(huì)給輸電線路的正常運(yùn)行帶來一定的安全風(fēng)險(xiǎn)。給出了一種新的地線融冰自動(dòng)接線裝置的安裝結(jié)構(gòu)圖,該裝置遠(yuǎn)程控制系統(tǒng)采用縱向加密的APN專網(wǎng)、操作程序邏輯自鎖、電機(jī)轉(zhuǎn)動(dòng)的時(shí)間管理等手段進(jìn)行了安全策略的設(shè)計(jì),并對設(shè)計(jì)內(nèi)容進(jìn)行了安全模擬試驗(yàn)。試驗(yàn)結(jié)果初步證明了本系統(tǒng)的安全性能,可有效防止非法操作,保障地線融冰自動(dòng)接線裝置和輸電線路的安全運(yùn)行。
關(guān)鍵詞:地線融冰;遠(yuǎn)程控制;縱向加密認(rèn)證;扭矩限制器;接近開關(guān)
中圖分類號(hào):TM726 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2021)03-0030-05
Security Strategy of Ground Wire Ice-Melting Automatic Wiring Device Remote Control System
XU Wang-sheng1, CAO Wei-wei2, WANG Zheng1, CHEN Zuo-xin2, SUN Zhi-lin1
(1 China Southern Power Grid EHV Transmission Company Guiyang Bureau, Guiyang 550081, China;
2 Nanjing Power Fitting Design & Research Institute Co., Ltd, Nanjing 211500, China)
Abstract: The remote control ice-melting automatic connection device can improve the ice-melting efficiency of power transmission lines and solve the problem of decentralization in operation and management, but it also brings some security risks to the normal operation of power transmission lines. The installation structure diagram of a new ground wire ice melting automatic wiring device is given. The remote control system of this device adopts the longitudinally encrypted APN private network, the operation program logic self-locking, the time management of the motor rotation and other means to carry out the security strategy design and conduct safety simulation tests on the design content. The test results prove the safety performance of the system, which can effectively prevent illegal operation and ensure the safe operation of the ground line ice-melting automatic wiring device and transmission line.
Key words: ground wire ice-melting; remote control; vertical encryption authentication; torque limiter; proximity switch
參考文獻(xiàn)
[1] 蔣興良,張志勁,胡琴,等. 再次面臨電網(wǎng)冰雪災(zāi)害的反思與思考[J]. 高電壓技術(shù),2018,44(2) :463-469.
[2] 陸佳政,朱思國,李波,等. 兼具無功補(bǔ)償與有源濾波功能的新型融冰裝置[J]. 高電壓技術(shù),2016,42(7) :2207-2214.
[3] JIANG X L, FAN S H, ZHANG Z J, et al.Simulation and Experimental Investigation of DC Icemelting Process on An Iced Conductor[J].IEEE Transactions on Power Delivery,2009,25(2) :919-929.
[4] WANG J J, FU C, CHEN Y P, et al.Research and Application of DC De–Icing Technology in China Southern Power Grid[J].IEEE Transactions on Power Delivery,2012,27(3) :1234-1242.
[5] 李隆基,高群,孔相歡,等. 防冰雪復(fù)合絕緣子懸掛方式優(yōu)化及其影響因素分析[J]. 電力系統(tǒng)及其自動(dòng)化學(xué)報(bào),2019,31(6) :74-79.
[6] 蔣興良. 輸電線路覆冰機(jī)理與防冰新技術(shù)研究[C] ∥中國科學(xué)技術(shù)協(xié)會(huì)首屆青年學(xué)術(shù)年會(huì)論文集:工科分冊( 上冊) . 北京:中國科學(xué)技術(shù)出版社,1992 :110-115.
[7] 谷文升,湯賜,張承燁,等. 輸電線路中頻融冰頻率及熱功率均勻度分析[J]. 廣東電力,2020,33(1) :93-99.
[8] 徐歡翔. 基于專線APN的無線圖傳傳輸方案的設(shè)計(jì)與實(shí)現(xiàn)[D]. 成都:電子科技大學(xué),2017.