Sequential Power Flow Calculation of AC/DC Hybrid System Considering Converter Station Loss and Its Capacity Constraints

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhu, Yuxin^1 ; Wang, Xiaolan^1 ; Zhang, Lu^2 ; He, Naixing^3

Key Laboratory of Advanced Industrial Process Control of Gansu Province, Lanzhou University of Technology, Lanzhou, China^1

School of Electrical Engineering and Information, Lanzhou University of Technology, Lanzhou, China^2

Lanzhou New District Municipal Investment Management Co. Ltd., Lanzhou, China^3

关键词: AC/DC hybrid system;    Capacity constraints;    Convergence performance;    Converter station;    Loss mechanisms;    Power flow algorithm;    Power flow calculations;    Power flow model;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/4/042121/pdf
DOI  :  10.1088/1755-1315/300/4/042121

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In the power flow calculation of AC/DC hybrid distribution network, the loss and capacity of the converter station have a great influence on the power flow calculation, and the AC/DC alternately solves the power flow, which has the disadvantage of poor convergence performance. In this paper, the power flow model of AC/DC hybrid distribution network with VSC is established. The loss mechanism of the converter station is analyzed and the capacity limit of the converter station is fully considered. The sequential power flow algorithm with VSC AC-DC hybrid distribution network is proposed. Its convergence performance is improved. In the improved 33-node AC/DC hybrid power distribution network with multiple types of DG, the correctness, effectiveness and algorithm fastness of the algorithm are verified.