Research on DC microgrid and comprehensive control strategy based on MMC-PET

被引:0
|
作者
Zhao Z. [1 ]
Cheng J. [1 ,2 ]
Wang W. [1 ,2 ]
Zhang L. [3 ]
Nan D. [1 ,2 ]
机构
[1] School of Electrical Engineering, Xinjiang University, Urumuqi
[2] Engineering Research Center of Education Ministry for Renewable Energy Power Generation and Grid Technology, Xinjiang University, Urumuqi
[3] Electric Power Research Institute of State Grid Xinjiang Electric Power Co., Ltd., Urumqi
来源
关键词
Controlstrategy; DC microgrid; Modularmultilevelconverter; Powerelectronictransformer; Powerquality; Renewableenergy;
D O I
10.19912/j.0254-0096.tynxb.2021-0144
中图分类号
学科分类号
摘要
In order to improve the power quality of the smart distribution network, a DC microgrid architecture based on the MMC-PET and its integrated control strategy are proposed. The grid connection mode of distributed power supply is simplified. The controller of MMC-PET, wind and solar storage system is designed to deal with power quality problems such as deep voltage drop and three-phase imbalance in the intelligent distribution network. The MMC-PET based DC microgrid wind and solar storage system simulation model was built on the PSCAD/EMTDC platform, and the simulation analysis is summarized. The results show that the method greatly improved the adaptability of new energy access, and had a faster dynamic response speed and stronger robustness, by which the power quality of smart distribution networks can be effectively improved. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
引用
收藏
页码:458 / 464
页数:6
相关论文
共 18 条
  • [1] SHENG W X, WU M, JI Y, Et al., Key technologies and engineering practice of distributed renewable energy power generation cluster integration and consumption, Proceedings of the CSEE, 39, 8, pp. 2175-2186, (2019)
  • [2] GUO H, WANG F, ZHANG L J, Et al., Intelligent distributed energy network technology based on energy router, Proceedings of the CSEE, 36, 12, pp. 3314-3325, (2016)
  • [3] AI X, RONG J G, LYU Z, Et al., Research on a new type of energy router structure and its control strategy, Power system technology, 43, 4, pp. 1202-1210, (2019)
  • [4] WANG Y G, HUANG J S., Coordinated control method for AC/DC distribution network based on four-port energy router, American journal of electrical and electronic engineering, 8, 2, pp. 6245-6258, (2020)
  • [5] LIANG D L, LIU Y B, KOU P, Et al., Analysis of the development trend of intelligent distribution transformers, Automation of electric power systems, 44, 7, pp. 1-14, (2020)
  • [6] ZHOU K, XIAO F., A high power quality control strategy for power electronic transformers based on dual modules on the output side in parallel, China southern power grid technology, 11, 12, pp. 23-30, (2017)
  • [7] LI Z, SHENG W X, DU S H, Et al., Voltage control and stability analysis of AC port of flexible power distribution equipment using VSG, Automation of electric power systems, 44, 8, pp. 141-148, (2020)
  • [8] LI J J, LYU Z Y, WU Z J, Et al., Adaptive switching strategy of AC/DC hybrid microgrid operation mode based on power electronic transformer, Electric power automation equipment, 40, 10, pp. 126-131, (2020)
  • [9] WANG D, TIAN J, MAO C X., Electronic power transformers in smart grids: improving the controllability of power systems (English), New technology of electrical engineering and energy, 36, 5, pp. 21-33, (2017)
  • [10] DONG L, ZHANG T, PU T J, Et al., Optimal suppression method for voltage imbalance of AC and DC distribution network with power electronic transformers, Power system technology, 42, 11, pp. 3609-3616, (2018)