Research on power control strategy of household-level electric power router based on hybrid energy storage droop control  

作　　者：Kun Huang Yanman Li Xiaoyan Zhang Lei Liu Yanbin Zhu Xin Meng 

机构地区：[1]NARI Technology Development Co.,Ltd,No.19,Chengxin Avenue,Jiangning District,Nanjing City,Jiangsu Province,China [2]Nari Group Corporation/State Grid Electric Power Research Institute,No.19,Chengxin Avenue,Jiangning District,Nanjing City,Jiangsu Province,China [3]School of Physics,University of Oxford,Oxford,OX13RH,UK [4]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin,300072,China

出　　处：《Protection and Control of Modern Power Systems》2021年第1期178-190,共13页现代电力系统保护与控制（英文）

基　　金：National Key R&D Program of China(2018YFB0905000);Science and Technology Project of State Grid Corporation of China(SGTJDK00DWJS1800232).

摘　　要：In the light of user-side energy power control requirements, a power control strategy for a household-level EPR based on HES droop control is proposed, focusing on the on-grid, off-grid and seamless switching process. The system operating states are divided based on the DC bus voltage information with one converter used as a slack terminal to stabilize the DC bus voltage and the other converters as power terminals. In the on-grid mode, the GCC and the HES are used as the main control unit to achieve on-grid stable operation, whereas in the off-grid mode, the PV, HES and LC are used as the main control unit at different voltages to achieve stable operation of the island network. Finally, a DC MG system based on a household-level EPR is developed using the PSCAD / EMTDC simulation platform and the results show that the control strategy can effectively adjust the output of each subunit and maintain the stability of the DC bus voltage.

关 键 词：Household-level electric power router Hybrid energy storage Droop control On-grid mode Off-grid mode 

分 类 号：G63[文化科学—教育学]