The power flow algorithm for AC/DC microgrids based on improved unified iteration method

被引:1
|
作者
Dong, Xin [1 ]
Wang, Haibin [2 ]
Zhang, Changkun [1 ]
Yu, Wanneng [1 ,3 ,4 ]
Yang, Rongfeng [1 ,3 ,4 ]
Xiao, Longhai [1 ,3 ,4 ]
Liao, Weiqiang [1 ,3 ,4 ,5 ]
Luo, Chenghan [1 ]
机构
[1] Jimei Univ, Sch Marine Engn, Xiamen, Peoples R China
[2] Univ Strathclyde, Dept Naval Architecture Ocean & Marine Engn, Glasgow, Scotland
[3] Jimei Univ, Marine Engn Coll, Xiamen, Peoples R China
[4] Jimei Univ, Key Lab Fujian Prov Marine & Ocean Engn, Xiamen, Peoples R China
[5] Innovat Lab Sci & Technol Energy Mat Fujian Prov, Xiamen, Peoples R China
来源
基金
中国国家自然科学基金;
关键词
hybrid ac/dc microgrid; power flow algorithm; system characteristics; unified iteration method; matrix reduction;
D O I
10.3389/fenrg.2024.1376714
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In response to the complexity of the Jacobian matrix inversion process in the power flow algorithm for AC/DC microgrids, leading to large memory requirements and susceptibility to convergence issues, a novel power flow algorithm based on an improved unified iteration method for AC/DC microgrids is proposed. Firstly, the fundamental equations of the unified iteration method and the characteristics of DC systems are analyzed. The reactive power correction terms and voltage phase correction differences are removed from the modified equations of the unified iteration method, and result in a reduction in the order of the Jacobian matrix in the power flow algorithm. Subsequently, the improved IEEE 11-node system is subjected to simulation verification to attain precise power flow solutions for hybrid AC/DC microgrids. The theoretical analysis identifies the main influencing parameters of active and reactive power errors and assesses their impact factors. Finally, experimental validation of the improved power flow algorithm is carried out on a physical platform, clarifying the applicability range of the proposed method. The research results indicate that within allowable error margins, the proposed approach reduces the difficulty of Jacobian matrix inversion, resulting in an 80% increase in computational speed compared to the unified iteration method. It is suitable for microgrid systems with short electrical distances and small magnitudes of node voltage amplitudes and phase differences.
引用
收藏
页数:14
相关论文
共 50 条
  • [1] Unified Power Flow Algorithm for Standalone AC/DC Hybrid Microgrids
    Aprilia, Ernauli
    Meng, Ke
    Al Hosani, Mohamed
    Zeineldin, Hatem H.
    Dong, Zhao Yang
    IEEE TRANSACTIONS ON SMART GRID, 2019, 10 (01) : 639 - 649
  • [2] A Novel Power Flow Algorithm for AC Microgrids Based on Time Domain Iteration
    Zhu, Yixin
    Wang, Tao
    Xiong, Liansong
    Yang, Ping
    Xu, ZhiRong
    IECON 2017 - 43RD ANNUAL CONFERENCE OF THE IEEE INDUSTRIAL ELECTRONICS SOCIETY, 2017, : 2356 - 2362
  • [3] A Unified Approach to the Power Flow Analysis of AC/DC Hybrid Microgrids
    Eajal, A. A.
    Abdelwahed, Mohamed A.
    El-Saadany, E. F.
    Ponnambalam, Kumaraswamy
    IEEE TRANSACTIONS ON SUSTAINABLE ENERGY, 2016, 7 (03) : 1145 - 1158
  • [4] Unified Power Flow Algorithm Based on the NR Method for Hybrid AC/DC Grids Incorporating VSCs
    Chai, Runze
    Zhang, Baohui
    Dou, Jingming
    Hao, Zhiguo
    Zheng, Tao
    IEEE TRANSACTIONS ON POWER SYSTEMS, 2016, 31 (06) : 4310 - 4318
  • [5] A General Unified AC/DC Power Flow Algorithm With MTDC
    Lei, Jingting
    An, Ting
    Du, Zhengchun
    Yuan, Zheng
    IEEE TRANSACTIONS ON POWER SYSTEMS, 2017, 32 (04) : 2837 - 2846
  • [6] Hill Climbing Power Flow Algorithm for Hybrid DC/AC Microgrids
    Khan, Omair
    Acharya, Samrat
    Al Hosani, Mohamed
    El Moursi, Mohamed Shawky
    IEEE TRANSACTIONS ON POWER ELECTRONICS, 2018, 33 (07) : 5532 - 5537
  • [7] A Sequential Power Flow Algorithm for Islanded Hybrid AC/DC Microgrids
    Hamad, Amr A.
    Azzouz, Maher. A.
    El Saadany, Ehab F.
    IEEE TRANSACTIONS ON POWER SYSTEMS, 2016, 31 (05) : 3961 - 3970
  • [8] A Newton-Raphson-Based Sequential Power Flow Algorithm for Hybrid AC/DC Microgrids
    Liu, Yitong
    Li, Zhengshuo
    Fan, Miao
    IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 2022, 58 (01) : 843 - 854
  • [9] VSC Based DC Grid Power Flow Algorithm and AC/DC Power Flow Algorithm
    Chen, XingLei
    Zhao, Zheng
    Zi, Peng
    Zhou, XiaoXin
    2014 INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON), 2014,
  • [10] A Holomorphic Embedding Power Flow Algorithm for Islanded Hybrid AC/DC Microgrids
    Morgan, Mohammed Y.
    Shaaban, Mostafa F.
    Sindi, Hatem F.
    Zeineldin, Hatem H.
    IEEE TRANSACTIONS ON SMART GRID, 2022, 13 (03) : 1813 - 1825