能量采集网络对传输系统电压性能的影响研究  

Voltage performance of transmission network system based on effect of EHN's reactive support

作　　者：郑真[1] 程浩忠[2] 张逸[3] 缪源诚[2] MASOUD Bazargan 

机构地区：[1]上海电力学院电气工程学院,上海200090 [2]上海交通大学电力传输与功率变换控制教育部重点实验室,上海200240 [3]福建省电力公司,福建福州350003 [4]阿尔斯通电网集团研究与技术中心

出　　处：《电源技术》2016年第1期203-206,共4页Chinese Journal of Power Sources

基　　金："863"计划(2014AA051901);国家电网公司大电网重大专项资助(SGCC-MPLG018-2012)

摘　　要：让分布式发电机(DGs)运行在固定的感性功率因数以克服配电网电压上升的限制,这样的做法很普遍。但这种方法增加了配电网无功需求,可能导致传输系统在全网DG高输出时无功功率提供有限(特别是当这种输出取代同步发电机时)。如果相邻的DGs能以集群的方式经过专用能源采集网络(EHN)连接到传输节点上,就可以像虚拟电厂一样描述其总无功容量能力。提供了这样一种描述,这种集群容量可以很容易地在传输系统模型中被体现出来,而且会明确地比较EHN无功容量和传统同步发电机电厂对传输系统电压控制性能的影响。It could be common to operate DGs at fixed inductive power factors so that we could overcome voltage con- straints on distribution networks. Distribution system which reactive power＇s demand was increased particularly if such output displaces synchronous generators, it may strain the transmission system reactive power resources at times of system-wide high DG output. If via a dedicated energy harvesting network（EHN） some adjacent DGs were connected to a transmission node in a clustered fashion, also as a form of virtual power plant, it was possible to characterise their aggregated reactive power capability. Such a characterisation could be provided. The aggregated capability would re- adily be included in transmission system models. This work would explicitly compare the transmission system vol- taget-control performance of EHN reactive capability with that of traditional synchronous plant.

关 键 词：分布式发电 能源采集网络 无功 

分 类 号：TM31[电气工程—电机]