摘要
考虑微电网稳定运行及微电网间电能交易的需求,提出了一种面向端对端电能交易的直流微电网运行控制策略。基于直流微电网系统的实时状态,储能变流器在下垂控制及恒定电压控制方式下切换,网侧变流器在恒定功率及恒定电压方式下切换。通过对直流母线电压进行划分,设置变流器动作阈值及电能交易触发条件,满足直流微电网用户在自主运行模式及电能交易模式下的稳定运行。仿真结果证明该策略的可行性和有效性。
Considering the stable operation of microgrid and the demand of electricity trading between microgrids,a DC microgrid operation control strategy for electricity trading is proposed.First,in the real-time state of the DC microgrid system,the energy storage converter is switched under the droop control and constant voltage control mode,whereas the grid-side converter under the constant power and constant voltage mode.Then,the DC bus voltage dividedand the operation threshold of converter and the triggering conditions of power transaction set,the stable operation of DC micro-grid users in both the self-operation mode and the power transaction mode is satisfied.The simulation results show that the strategy is feasible and effective.
作者
王丹
马喜然
张子阳
陈竟成
于建成
张聂鹏
孟欣
朱彦斌
WANG Dan;MA Xiran;ZHANG Ziyang;CHEN Jingcheng;YU Jiancheng;ZHANG Niepeng;MENG Xin;ZHU Yanbin(Key Laboratory of Smart Grid of Ministry of Education(Tianjin University),Nankai District,Tianjin 300072,China;Zhenjiang Power Supply Company,State Grid Jiangsu Power Co.,Ltd.,Zhenjiang 212000,Jiangsu Province,China;State Grid Tianjin Electric Power Company,Hebei District,Tianjin 300010,China)
出处
《电网技术》
EI
CSCD
北大核心
2020年第9期3466-3473,共8页
Power System Technology
基金
国家重点研发计划资助项目(2018YFB0905000)
国家电网公司科技项目(SGTJDK00DWJS1800232)
国家自然科学基金面上基金资助项目(51977141)
分布式能源与微网国际联合实验室合作项目
关键词
直流微电网
电能交易
母线电压
运行控制策略
DC microgrid
electricity trading
bus voltage
operation control strategy
