蘇州某產(chǎn)業(yè)園區(qū)域交直流混合配電網(wǎng)控制方法研究
李斌1,金雪2,王輝2,姜彤1
(1 華北電力大學(xué) 電氣與電子工程學(xué)院,北京 102206;2 國網(wǎng)江蘇省電力有限公司蘇州供電分公司,江蘇 蘇州 215004)
摘 要:交直流混合配電網(wǎng)因其兼具交流配電網(wǎng)和直流配電網(wǎng)的優(yōu)勢是未來的發(fā)展趨勢。介紹了蘇州某產(chǎn)業(yè)園區(qū)域交直流混合配電網(wǎng)結(jié)構(gòu)與運(yùn)行特點(diǎn),結(jié)合產(chǎn)業(yè)園區(qū)域交直流混合配電網(wǎng)實(shí)際網(wǎng)架結(jié)構(gòu)、運(yùn)行原則以及運(yùn)行方式等特點(diǎn),給出了產(chǎn)業(yè)園區(qū)交直流混合配電網(wǎng)的協(xié)調(diào)控制方法,包括配電網(wǎng)正常運(yùn)行、故障情況和離并網(wǎng)切換3種情況下的控制策略。提出的控制策略有利于提升供電能力,提高供電可靠性和電能質(zhì)量,實(shí)現(xiàn)多點(diǎn)同期與離網(wǎng)靈活切換和實(shí)現(xiàn)快速故障隔離與自愈,具有極強(qiáng)的推廣性。
關(guān)鍵詞:交直流混合配電網(wǎng);網(wǎng)架結(jié)構(gòu);控制方法;離并網(wǎng)切換
中圖分類號:TM727 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2018)11-0016-06
Research on Control Methods of AC/DC Hybrid Distribution Network in Suzhou Industrial Park
LI Bin1, JIN Xue2, WANG Hui2, JIANG Tong1
(1 School of Electrical & Electronic Engineering, North China Electric Power University, Beijing 102206, China;
2 State Grid Jiangsu Power Company Suzhou Power Supply Bureau, Suzhou 215004, China)
Abstract: AC / DC hybrid distribution network is a development trend in the future because it has advantages of both AC distribution network and DC distribution network. Introduction was made to the structure and operation characteristics of AC/DC hybrid distribution network in Suzhou industrial park.Combined with the actual grid structure, the operation principle and the operation mode etc features of AC/DC hybrid distribution network, the coordinated control methods of AC/DC hybrid distribution network in the industrial park were given under three conditions, including normal operation, failure condition and grid-connected/islanded transition.The proposed control strategy is beneficial to improve power supply capacity, to raise power supply reliability and to enhance power quality, which realizes multi-point synchronization and grid-connected/islanded flexible transition and achieves rapid fault isolation and self-healing, with very strong generalization performance.
Key words: AC/DC hybrid distribution network; grid structure; control method; grid-connected/islanded transition
參考文獻(xiàn)
[1] 江道灼,鄭歡. 直流配電網(wǎng)研究現(xiàn)狀與展望[J]. 電力系統(tǒng)自動化,2012,36(8):98-104.
[2] 曾嘉思,徐習(xí)東,趙宇明. 交直流配電網(wǎng)可靠性對比[J]. 電網(wǎng)技術(shù),2014,38(9):2582-2589.
[3] 蔣智化,劉連光,劉自發(fā),等. 直流配電網(wǎng)功率控制策略與電壓波動研究[J]. 中國電機(jī)工程學(xué)報(bào),2016,36(4):919-926.
[4] 張學(xué),裴瑋,鄧衛(wèi),等. 多源/ 多負(fù)荷直流微電網(wǎng)的能量管理和協(xié)調(diào)控制方法[J]. 中國電機(jī)工程學(xué)報(bào),2014,34(31):5553-5562.
[5] 王毅,黑陽,付媛,等. 基于變下垂系數(shù)的直流配電網(wǎng)自適應(yīng)虛擬慣性控制[J]. 電力系統(tǒng)自動化,2017,41(8):116-124.
[6] 黃仁樂,程林,李洪濤. 交直流混合主動配電網(wǎng)關(guān)鍵技術(shù)研究[J]. 供用電,2016,36(8):46-51.
[7] 鄭歡,江道灼,杜翼. 交流配電網(wǎng)與直流配電網(wǎng)的經(jīng)濟(jì)性比較[J]. 電網(wǎng)技術(shù),2013,37(12):3368-3374.
[8] 張黎,吳昊,曹磊,等. 基于Z 型變壓器的交直流混合配電網(wǎng)仿真分析[J]. 電力系統(tǒng)自動化,2014,38(2):79-84.