基于直流电力分组传输的缓存储能研究  

Research on energy storage buffer based on DC power packet transmission

作　　者：高冰[1] 杜娟[1] 安世华 赵志辰 魏明磊 王梦媛 李保罡[2] GAO Bing;DU Juan;AN Shihua;ZHAO Zhichen;WEI Minglei;WANG Mengyuan;LI Baogang(State Grid Hengshui Power Supply Company,Hengshui 053000,China;School of Electrical&Electronic Engineering,North China Electric Power University,Baoding 071003,China)

机构地区：[1]国网衡水供电公司,河北衡水053000 [2]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《电力系统保护与控制》2020年第4期118-124,共7页Power System Protection and Control

基　　金：国家自然科学基金项目资助(61501185);国网河北省电力有限公司科技项目资助(SGHEHS00FCJS1800274)~~

摘　　要：直流配电网中基于电力分组传输的调度系统实现了电能的有效分配,然而,由于分组供能的断续性,缓存储能问题变得至关重要。着重对直流电力分组传输系统中的储能缓存器容量进行了分析。利用一阶电路三要素法推导出电容容量表达式,将其应用到电力分组系统中,得出缓存器容量范围,建立了缓存器和负载之间的关系。基于其关系,从时分复用的角度分析了系统可容纳负载数量问题。最后,使用Matlab软件对其数学关系进行理论仿真分析。结果表明,可以通过减小电力包的有效载荷持续时间等来满足更多负载的需求。这一研究在一定程度上既减少了投资成本,又使电力资源得到了有效利用。The dispatching system based on power packet transmission in the DC distribution network realizes the efficient allocation of electric energy. However, due to the intermittent nature of packet energy supply, the problem of energy storage buffer becomes critical. This paper focuses on the analysis of the energy storage buffer capacity in the DC power packet transmission system. The first-order circuit three-element method is used to derive the capacitance capacity expression, which is applied to the power packet system to obtain the buffer capacity range, and the relationship between the buffer and the load is established. Based on its relationship, the problem of the number of loads that the system can accommodate is analyzed from the perspective of time division multiplexing. Finally, Matlab software is used to theoretically analyze the mathematical relationship. The results show that the demand for more loads can be met by reducing the payload duration of the power packet and the like. To a certain extent, this research has reduced investment costs and enabled the effective use of power resources.

关 键 词：直流电力分组传输 缓存器 电容 时分复用 负载 

分 类 号：TM721.1[电气工程—电力系统及自动化]