某市吉河線嚴(yán)重低電壓?jiǎn)栴}分析與解決方案
劉安靈1,黃振剛1,梁昊1,修連成2
(1 國(guó)網(wǎng)安康供電公司,陜西 安康 725000;2 四川農(nóng)業(yè)大學(xué) 機(jī)電學(xué)院,四川 成都 611130)
摘 要:介紹了某市電網(wǎng)公司吉河線出現(xiàn)的嚴(yán)重低電壓?jiǎn)栴},分析了該線路低電壓?jiǎn)栴}持續(xù)惡化的主因,探討了低電壓?jiǎn)栴}的可行性解決方案,重點(diǎn)對(duì)串聯(lián)補(bǔ)償電容器方案的可行性進(jìn)行了研究。根據(jù)吉河線低電壓?jiǎn)栴}產(chǎn)生的原因以及該市電網(wǎng)運(yùn)行的實(shí)際情況,提出了近期、中期、遠(yuǎn)期的三階段工程治理方案,并指出了解決農(nóng)村偏遠(yuǎn)地區(qū)配電網(wǎng)低電壓?jiǎn)栴}的最佳路徑,以期為配電網(wǎng)低電壓?jiǎn)栴}專項(xiàng)治理工作提供參考。
關(guān)鍵詞:配電網(wǎng);低電壓;調(diào)壓器;治理
中圖分類號(hào):TM714.3 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2018)05-0032-05
Mechanism Analysis and Solution Investigation on Low-Voltage Issues of Jihe Line
LIU An-ling1, HUANG Zhen-gang1, LIANG Hao1, XIU Lian-cheng2
(1 State Grid Ankang Power Supply Company, Ankang 725000, China;
2 College of Mechanical and Electrical Engineering, Sichuan Agricultural University, Chengdu 6111 30, China)
Abstract: Introduction was made to the serious low-voltage issues happened in Jihe line of city grid. This paper analyzed the mechanism and the main factors of low-voltage issues, listed the feasible solutions and focused on researching the feasibility of series compensation capacitor scheme. According to the reason leading to the low-voltage issues in Jihe line and the physical truth of city grid operation, this paper presented three-stage project treatment scheme of near term, medium term and long term. The best way to solve the low-voltage problem in remote rural area, which is beneficial to the ongoing project of power quality improvement of the rural distribution networks, is also proposed.
Key words: distribution network; low-voltages; voltage regulator; improvement
參考文獻(xiàn)
[1] 張夢(mèng),趙鳳展,張靚,等. 農(nóng)村低壓配電網(wǎng)臺(tái)區(qū)智能化管理的評(píng)價(jià)與措施[J]. 中國(guó)農(nóng)機(jī)化學(xué)報(bào),2015,36(1):340-343.
[2] 歐陽(yáng)森,耿紅杰,陳欣暉. 考慮綜合效益的低壓配網(wǎng)臺(tái)區(qū)無(wú)功補(bǔ)償評(píng)估方法及其應(yīng)用[J]. 現(xiàn)代電力,2015,32(4):62-67.
[3] GHOSH A, LEDWICH G. Compensation of distribution system voltage using DVR[J]. IEEE Power Engineering Review,2002,22(8):71-71.
[4] 徐振,譚甜源,樂(lè)健,等. 農(nóng)網(wǎng)末端低電壓?jiǎn)栴}補(bǔ)償方案研究[J]. 電氣應(yīng)用,2013,32(9):50-53.
[5] 吳勇海,蔡金錠. 中壓配電網(wǎng)串聯(lián)電容補(bǔ)償調(diào)壓技術(shù)研究及應(yīng)用[J]. 電力系統(tǒng)保護(hù)與控制,2012,40(13):140-144.
[6] 馬曄暉,蘇軍,沈曉峰,等. 一種三相不平衡配網(wǎng)系統(tǒng)中配置調(diào)壓器和電容補(bǔ)償器的概率方法[J].電力與能源,2017,38(3):227-230.
[7] 傅旭華,吳群雄,龔華勇,等. 配電網(wǎng)長(zhǎng)線路低電壓?jiǎn)栴}研究[J]. 浙江電力,2015,34(3):10-13.
[8] 王益濤,林莘,徐建源,等. 配電線路并聯(lián)補(bǔ)償電容器的諧波放大問(wèn)題仿真分析[J]. 電氣工程學(xué)報(bào),2011,6(9):58-60.
[9] 肖宏,何森,覃宗濤,等. 低壓線路補(bǔ)償式自動(dòng)調(diào)壓器的研制與應(yīng)用[J]. 電工技術(shù),2016,37(11):8-9.
[10] XIONG L S, ZHUO F.Chopper Controller Based DC Voltage Control Strategy for Cascaded Multilevel STATCOM[J]. Journal of Electrical Engineering & Technology,2014,9(9):576-588.
[11] 熊連松,馬路遙,卓放,等. 基于分層控制與輔助均壓的鏈?zhǔn)絊TATCOM直流側(cè)電壓控制方法[J]. 陜西電力,2012,40(12):1-5.
[12] HAN C, HUANG A Q, BARAN M E, et al. STATCOM Impact Study on the Integration of a Large Wind Farm into a Weak Loop Power System[J]. IEEE Transactions on Energy Conversion,2008,23(1):226-233.
[13] XIONG L, ZHUO F, ZHU Y.A novel control method for DC voltage of cascaded STATCOM[C]// IEEE Power Electronics and Motion Control Conference,2012:2748-2753.