直流配电系统的运行与控制  

Operation and Control of DC Distribution System

作　　者：栾会[1] 王丹[1] 毛承雄[1] 陆继明[1] 

机构地区：[1]华中科技大学强电磁工程与新技术国家重点实验室,湖北武汉430074

出　　处：《水电能源科学》2012年第9期161-164,共4页Water Resources and Power

基　　金：国家自然科学基金资助重点项目(50837003);国家自然科学基金资助项目(50807020);国家重点基础研究发展计划基金资助项目(2009CB219702)

摘　　要：为了提高供电能效和质量、增强电力系统的可控性,提出了直流配电系统,建立了辐射型直流配电网络结构,采用电压下垂控制方式,并对直流配电系统各种运行情况进行了仿真。结果表明,直流配电系统在重载情况下从交流电网吸收有功功率,轻载情况下向交流大电网回馈有功功率,对交流大电网有一定的功率支援作用;在电源和负荷扰动情况下,系统能维持功率平衡,且直流母线电压能保持稳定,证实了直流配电系统的可行性。In order to improve the efficiency and quality of power supply and enhance the controllability of power system, DC distribution system is proposed. A radial-type DC network structure is established and several operation modes of the DC distribution system are simulated by adopting voltage drooped control strategy. The results show that the DC distribution system absorbs active power under overload situation and feeds active power back to AC power grid under light load condition; so it can give AC power grid some power support; the system power can be balanced and the DC bus voltage can remain stable at the conditions of power source and load disturbance. Thus, it confirms the feasibility of DC distribution system.

关 键 词：直流配电系统 网络结构 运行 电压控制 电压稳定 

分 类 号：TM732[电气工程—电力系统及自动化]