一种配电网线路不停电融冰方法A Non-outage De-icing Method of Distribution Lines
杨少杰,高一波
YANG Shaojie,GAO Yibo
摘要(Abstract)：
提出了一种配网线路不停电融冰的方法,通过降低配电网线路覆冰段的运行电压、增加覆冰段线路电流,以实现热力融冰。将2台大范围有载调压变压器通过开关装置串联接入线路覆冰段两端,通过这2台融冰变压器的协同调节降低线路覆冰段运行电压,并保证负荷端电压的稳定。基于PSCAD平台搭建了配电网线路不停电融冰系统仿真模型,对不同工况下的线路融冰运行情况进行了仿真分析,并对不同无功补偿方案进行对比分析,从而为线路提供电压支撑,最后给出了该方案的适用场合。
A non-outage de-icing method of distribution lines is proposed. By lowering operating voltage of the iced distribution lines and increasing the current of the iced lines, the ice is melted by heat. A pair of widerange on-load tap changer transformers are connected in series with both terminals of the iced lines through switches. By adjustment of the two transformers, the operating voltage of the iced lines is lowered to ensure voltage stability at the load terminal. A simulation model of non-outage deicing system of distribution lines is established based on PSCAD platform to simulate and analyze line deicing under different operating conditions; besides, the various reactive power compensation schemes are compared to provide voltage support for lines. In the end, the application scenario of the scheme is expounded.
关键词(KeyWords)：
不停电融冰;融冰变压器;配网线路;无功补偿
non-outage deicing;deicing transformer;distribution line;reactive power compensation
基金项目(Foundation):
作者(Author):
杨少杰,高一波
YANG Shaojie,GAO Yibo
DOI: 10.19585/j.zjdl.2016.11.004
参考文献(References)：
- [1]HUANG Q,CHEN Y,ZHANG C H.Design of an adaptive on-load de-icing scheme for overhead power transmission line[C].Power&Energy Society General Meeting,PES'09.2009.
- [2]HUANG X B,XU W.A new on-line monitoring technology of transmission line conductor icing[C].2012 International Conference on Condition Monitoring and Diagnosis(CMD),2012.
- [3]Li S S,WANG Y H,Li X Y,et al.Review of de-icing methods for transmission lines[C].2010 International Confer ence on Intelligent System Design and Engineering Application(ISDEA),2010.
- [4]赵国帅,李兴源,傅闯,等.线路交直流融冰技术综述[J].电力系统保护与控制,2011,14(39):148-154.
- [5]HUNEAULT M,LANGHEIT C,ST-ARNAUD R,et al.Adynamic programming methodology to develop de-icing strategies during ice storms by channeling load currents in transmission networks[J].IEEE Transactions on Power Delivery,2005(20):1604-1610.
- [6]CLOUTIER R,BERGERON A,BROCHU J.On-load network de-icer specification for a large transmission network[J].IEEE Transactions on Power Delivery,2007(22):1947-1955.
- [7]BROCHU J,CLOUTIER R,BERGERON A.On-load net work de-icer for HV transmission lines[C].Int.Workshop on Atmospheric Icing of Structures,2005.
- [8]李晓明,周冬旭,江建飞,等.输电线覆冰自动防御系统建模及其对电网的影响分析[J].高电压技术,2013,39(3):698-704.
- [9]舒立春,罗保松,蒋兴良,等.智能循环电流融冰方法及其临界融冰电流研究[J].电工技术学报,2012,27(10):26-34.
- [10]蒋兴良,范松海,胡建林,等.输电线路直流短路融冰的临界电流分析[J].中国电机工程学报,2010,30(1):111-116.
- [11]HUNEAULT M,LANGHEIT C,CARON J.Combined models for glaze ice accretion and de-icing of current-carrying electrical conductors[J].IEEE Transactions on Power Delivery,2005(20):1611-1616.
- [12]孙才新,蒋兴良,熊启新,等.导线覆冰及其干湿增长临界条件分析[J].中国电机工程学报,2003,23(3):141-145.
- [13]赵立进,马晓红,许逵,等.贵州电网融冰方法的研究和应用[J].南方电网技术,2011,5(6):118-122.