带电流限制器的并网逆变器的电力系统动态状态估计

IF 7.2 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Transactions on Power Systems Pub Date : 2024-09-13 DOI:10.1109/TPWRS.2024.3460417

Xingyu Zhao;Bendong Tan;Junbo Zhao

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引用次数: 0

摘要

当限流器在大的干扰下激活时，并网逆变器（GFM）从电压源切换到电流源。这种疏忽可能会破坏动态状态估计（DSE）的准确性。为了解决这一问题，本文将限流器建模为时变阻抗，从而为DSE提供了统一的状态空间表示。这允许在存在和不存在当前限制的情况下捕获GFMs的动态。对连接到改进的IEEE 39总线系统上的GFMs进行了数值计算，结果表明了该方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Power System Dynamic State Estimation of Grid-Forming Inverters With Current Limiter

When the current limiter activates during large disturbances, the grid-forming inverter (GFM) switches from a voltage source to a current source. This oversight may undermine the accuracy of dynamic state estimation (DSE). To address this issue, this paper models the current limiter as a time-varying impedance, thereby presenting a unified state-space representation for DSE. This allows capturing the dynamics of GFMs in the presence and absence of current limitations. Numerical results on GFMs connected to a modified IEEE 39-bus system demonstrate the effectiveness of the proposed method.

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来源期刊

IEEE Transactions on Power Systems 工程技术-工程：电子与电气

CiteScore

15.80

自引率

7.60%

发文量

696

审稿时长

3 months

期刊介绍： The scope of IEEE Transactions on Power Systems covers the education, analysis, operation, planning, and economics of electric generation, transmission, and distribution systems for general industrial, commercial, public, and domestic consumption, including the interaction with multi-energy carriers. The focus of this transactions is the power system from a systems viewpoint instead of components of the system. It has five (5) key areas within its scope with several technical topics within each area. These areas are: (1) Power Engineering Education, (2) Power System Analysis, Computing, and Economics, (3) Power System Dynamic Performance, (4) Power System Operations, and (5) Power System Planning and Implementation.