Harmonic Power-Flow Study of Polyphase Grids With Converter-Interfaced Distributed Energy Resources-Part I: Modeling Framework and Algorithm

被引:12
|
作者
Kettner, Andreas Martin [1 ]
Reyes-Chamorro, Lorenzo [2 ]
Becker, Johanna Kristin Maria [3 ]
Zou, Zhixiang [4 ]
Liserre, Marco [5 ]
Paolone, Mario [3 ]
机构
[1] PSI NEPLAN AG, CH-8700 Kusnacht, Switzerland
[2] Univ Austral Chile, Fac Ciencias Ingn, Valdivia 5111187, Chile
[3] Ecole Polytech Fed Lausanne, Distributed Elect Syst Lab, CH-1015 Lausanne, Switzerland
[4] Southeast Univ, Sch Elect Engn, Nanjing 210096, Peoples R China
[5] Christian Albrechts Univ Kiel, Chair Power Elect, D-24143 Kiel, Germany
基金
瑞士国家科学基金会;
关键词
Harmonic analysis; Mathematical models; Power system harmonics; Computational modeling; Transient analysis; Time-domain analysis; Integrated circuit modeling; Distributed energy resources; harmonic power-flow study; polyphase power systems; power electronic converters; unbalanced power grids; STEADY-STATE; LOAD; ELECTRONICS; DOMAIN;
D O I
10.1109/TSG.2021.3120108
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Power distribution systems are experiencing a large-scale integration of Converter-Interfaced Distributed Energy Resources (CIDERs). This complicates the analysis and mitigation of harmonics, whose creation and propagation are facilitated by the interactions of converters and their controllers through the grid. In this paper, a method for the calculation of the so-called Harmonic Power-Flow (HPF) in three-phase grids with CIDERs is proposed. The distinguishing feature of this HPF method is the generic and modular representation of the system components. Notably, as opposed to most of the existing approaches, the coupling between harmonics is explicitly considered. The HPF problem is formulated by combining the hybrid nodal equations of the grid with the closed-loop transfer functions of the CIDERs, and solved using the Newton-Raphson method. The grid components are characterized by compound electrical parameters, which allow to represent both transposed or non-transposed lines. The CIDERs are represented by modular linear time-periodic systems, which allows to treat both grid-forming and grid-following control laws. The method's accuracy and computational efficiency are confirmed via time-domain simulations of the CIGRe low-voltage benchmark microgrid. This paper is divided in two parts, which focus on the development (Part I) and the validation (Part II) of the proposed method.
引用
收藏
页码:458 / 469
页数:12
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