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
  • [11] A Generic Power Flow Algorithm for Unbalanced Islanded Hybrid AC/DC Microgrids
    Pompodakis, Evangelos E.
    Kryonidis, Georgios C.
    Demoulias, Charis
    Alexiadis, Minas C.
    IEEE TRANSACTIONS ON POWER SYSTEMS, 2021, 36 (02) : 1107 - 1120
  • [12] A power flow calculation algorithm for AC/DC interconnected power systems based on bi-directional iteration
    Xue, Z. (banditxue@163.com), 1600, Automation of Electric Power Systems Press (37):
  • [13] Power Flow Analysis of AC/DC Hybrid Microgrids
    Eajal, A. A.
    Abdelwahed, Mohamed A.
    El-Saadany, E. F.
    Ponnambalam, K.
    2016 IEEE ELECTRICAL POWER AND ENERGY CONFERENCE (EPEC), 2016,
  • [14] Hierarchial Power Flow Algorithm for Standalone Hybrid AC/Multi-DC Microgrids
    Aprilia, Ernauli
    Meng, Ke
    Dong, Zhao Yang
    Jia, Youwei
    Xu, Zhao
    2017 IEEE POWER & ENERGY SOCIETY GENERAL MEETING, 2017,
  • [15] AC/DC Power Flow Computation Based on Improved Levenberg-Marquardt Method
    Cao, Jia
    Yan, Zheng
    Fan, Xiang
    Xu, Xiaoyuan
    Li, Jianhua
    Cao, Lu
    INTERNATIONAL JOURNAL OF EMERGING ELECTRIC POWER SYSTEMS, 2015, 16 (01): : 1 - 13
  • [16] Generic power flow algorithm for bipolar DC microgrids based on Newton-Raphson method
    Lee, Jin-Oh
    Kim, Yun-Su
    Jeon, Jin-Hong
    INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 2022, 142
  • [17] An improved AC-DC iteration algorithm based on dynamic network loss modification
    Huang, Wei
    Zhang, Li-Zi
    Wang, Nan
    Shu, Jun
    Dianwang Jishu/Power System Technology, 2010, 34 (06): : 119 - 122
  • [18] A Unified DC-AC Power Flow Algorithm of Distribution Network with Distributed Generation
    Li, Wenbo
    Li, Keqiang
    Sun, Donglei
    Li, Lulu
    Chen, Chunlong
    Yang, Si
    PROCEEDINGS OF THE 2017 5TH INTERNATIONAL CONFERENCE ON MECHATRONICS, MATERIALS, CHEMISTRY AND COMPUTER ENGINEERING (ICMMCCE 2017), 2017, 141 : 739 - 747
  • [19] Unified Iterative Power Flow Algorithm of AC/DC Networks Incorporating Hybrid HVDC
    Dou, Jingming
    Zhang, Baohui
    Chai, Runze
    Guan, Zhe
    Liu, Chang
    2016 IEEE 16TH INTERNATIONAL CONFERENCE ON ENVIRONMENT AND ELECTRICAL ENGINEERING (EEEIC), 2016,
  • [20] Optimizing Power Flow and Stability in Hybrid AC/DC Microgrids: AC, DC, and Combined Analysis
    Meena, Ghanshyam
    Meena, Veerpratap
    Mathur, Akhilesh
    Singh, Vinay Pratap
    Azar, Ahmad Taher
    Hameed, Ibrahim A.
    MATHEMATICAL AND COMPUTATIONAL APPLICATIONS, 2024, 29 (06)