配电网采用20kV供电的前景分析  

Prospective Analysis of Adopting 20 kV Voltage in Distribution System

作　　者：魏庆海[1] 吕鸣镝[1] 周莉梅[2] 范明天[2] 

机构地区：[1]黑龙江省电力有限公司,黑龙江省哈尔滨市150090 [2]中国电力科学研究院,北京市海淀区100192

出　　处：《电网技术》2008年第23期61-66,共6页Power System Technology

摘　　要：总结了20kV中压配电电压在国内外的应用和实践情况,分析了采用20kV供电需要考虑的主要问题,包括城市空间资源稀缺、用电结构的变化、配电网的发展模式、现有设备存量、升压改造的技术措施、供电安全水平、社会效益、经济效益以及供电政策等多个方面。以黑龙江省为例分析了配电网采用20kV供电的必要性,结合黑龙江省2个20kV试点工程提出在黑龙江乃至全国配电网推广应用20kV的推荐发展模式和具体相关建议。The application of 20kV distribution voltage and practical experiences home and abroad are summarized. The main problems to be considered while the 20kV voltage grade is adopted for power supply in distribution network are analyzed, they are scarcity of urban space resources, change of power utilization structure, developing mode of distribution network, existing devices and asset, technical measures for distribution network renovation by upgrading voltage grade, security level of power supply, social benefit, economic benefit and policy of power supply and so on. Taking distribution network in Heilongjiang Province for example, the necessity of adopting the 20kV voltage grade for distribution network is analyzed and according to the two 20kV pilot projects being implemented in Heilongjiang Province the recommended developing mode and relevant concrete suggestions to extend and apply 20kV power supply in Heilongjiang Province and even in whole nation are put forward.

关 键 词：中压配电电压 20 KV 升压改造 供电能力 节约型电网 

分 类 号：TM715[电气工程—电力系统及自动化]