强弱电网均适用的MMC站同步机仿真控制

IF 3.8 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Power Delivery Pub Date : 2025-02-05 DOI:10.1109/TPWRD.2025.3538914

Zheren Zhang;Hanlin Guo;Zheng Xu

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引用次数: 0

摘要

可再生能源比例的快速增长是当今电力系统的主要发展趋势。模块化多电平变换器（MMC）站适用于强弱电网，是连接具有高比例电力电子设备的交流电网的潜在解决方案。本文提出了一种MMC台站同步机仿真控制方案。所提出的控制方案由正常运行的基本控制和交流故障穿越的附加控制组成。有了基本控制，MMC站就像一台同步机一样工作。然后，在小扰动稳定性分析的基础上，分析了该控制器的低频阻尼特性，验证了该控制器在小扰动下对强弱网格的适应性。对于附加控制，通过时域仿真研究了附加控制在大扰动下的性能。在PSCAD/EMTDC中分别对弱电网和强电网进行了时域仿真，验证了交流故障下附加控制的可行性。

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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Synchronous Machine Imitation Control of MMC Stations Adaptable for Both Strong and Weak Grids

A fast increasing proportion of renewable energy is the main development trend in today's power systems. The modular multilevel converter (MMC) station adaptable for both strong and weak grids is a potential solution when connecting to AC grids with a high proportion of power electronics. In this paper, a synchronous machine imitation control scheme of the MMC stations is proposed. The proposed control scheme consists of the basic control for normal operation and the additional control for AC fault riding through. With the basic control, the MMC station behaves as a synchronous machine. Then, based on small disturbance stability analysis, the low frequency damping characteristics are analyzed, demonstrating the proposed control's adaptability to both strong and weak grids under small disturbance. For the additional control, its performance under large disturbance is studied by time domain simulation. The time domain simulations are carried out in PSCAD/EMTDC for both the weak and strong grids, and the feasibility of the additional control under AC fault is also verified.

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来源期刊

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

CiteScore

9.00

自引率

13.60%

发文量

513

审稿时长

6 months

期刊介绍： The scope of the Society embraces planning, research, development, design, application, construction, installation and operation of apparatus, equipment, structures, materials and systems for the safe, reliable and economic generation, transmission, distribution, conversion, measurement and control of electric energy. It includes the developing of engineering standards, the providing of information and instruction to the public and to legislators, as well as technical scientific, literary, educational and other activities that contribute to the electric power discipline or utilize the techniques or products within this discipline.