基于能量路由器的风光储用微网系统容量优化配置研究  

Research on Capacity Optimization Configuration of Wind-solar-storage-load Micro-grid System Based on Energy Router

作　　者：张杰添 李驰[2] ZHANG Jietian;LI Chi(Zhuhai EWPE Information Technology INC.,Zhuhai,Guangdong 519070,China;Department of Electrical Engineering,Tsinghua University,Beijing 100084,China)

机构地区：[1]珠海艾维普信息技术有限公司,广东珠海519070 [2]清华大学电机系,北京100084

出　　处：《控制与信息技术》2022年第6期28-34,共7页CONTROL AND INFORMATION TECHNOLOGY

摘　　要：风光储用微网系统容量配置是能源互联网建设的关键问题之一。通过合理的容量配置,可以降低微网系统中电力电子变换器的整体损耗。为实现整体系统的节能,首先需对微网系统损耗特性进行精准建模。相对传统的将变换器效率视为定值的建模方法,文章通过分段线性拟合的建模方法更精准地描述了微网系统变换器效率随输出功率变化的特性,并在建立微网系统时综合考虑了风能与太阳能的互补特性以及电动汽车集中充电站的储能特性,提高了微网系统配置的灵活性和可靠性。基于该微网系统模型,文章通过模拟退火算法实现了风光系统、储能系统的系统容量优化配置,并通过算例验证了所提方法的准确性和有效性。该优化配置相对于一般专家配置可降低损耗36.68%;相较电动汽车只作为负载的情况,当电动汽车作为储能设备时,微网系统整体损耗可降低9.30%。Capacity configuration of hybrid wind-solar-storage-load micro-grid system is a key issue in the construction of energy internet.Through reasonable capacity configuration,the overall loss of power electronic converter in micro-grid system can be reduced.In order to realize energy saving of the whole system,it is necessary to accurately model the loss characteristics of the micro-grid system at first.Compared with the traditional modeling method in which converter efficiency is regarded as a fixed value,this paper used the piecewise linear method to describe the variation characteristics of the converter efficiency of the micro-grid system more accurately with the output power.In addition,the micro-grid system established in this paper comprehensively considered the complementary characteristics of wind energy and solar energy,as well as the energy storage characteristics of the centralized electric vehicle charging station,to improve the flexibility and reliability of the system configuration.Based on the above micro-grid system model,the optimal energy storage configuration of wind power system and solar power system and system is realized by simulated annealing algorithm,and the accuracy and effectiveness of the proposed are verified by a case study.Compared with the general expert configuration,this optimized configuration can reduce the loss by 36.68%.When the electric vehicle is used as an energy storage device,compared with the case where the electric vehicle is only used as a load,the overall loss of the micro-grid system can be reduced by 9.30%.

关 键 词：风光储用微网系统 能量路由器 优化配置 损耗特性 电动汽车集中充电站 

分 类 号：TK82[动力工程及工程热物理—流体机械及工程] TK511