Mass-Block-Dragging-Based Starting Method for Synchronous Generator/Motor of Gravity Energy Storage System

IF 5.2 2区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Transactions on Industry Applications Pub Date : 2026-09-01 Epub Date: 2026-01-19 DOI:10.1109/TIA.2026.3655622

Zufan Wang;Gaoyun Wu;Shuyang Fang;Tian Gao;Chenyang Li;Hassan H. Eldeeb;Yongzhang Huang;Guorui Xu;Haisen Zhao

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引用次数: 0

Abstract

A gravity energy storage system (GESS) typically adopts the synchronous generator-motor (SGM) that is directly connected to the grid, in order to provide inertia and reactive power support to power systems with high penetration of renewable energy. However, due to the lack of line-starting capability, it is a critical challenge for a GESS to meet the frequent start-stop requirements in practice. To solve this problem, an SGM starting method based on mass block (MB) dragging is proposed in this study, for a chain-rail-based slope GESS (SGESS) as example. Through the analysis of the loss components of GESS, an optimal mass determination method for the starting MB is derived. The MB-dragging-based starting of 1-kW and 500-kW chain-rail-based SGESSs are then simulated and analyzed, and the dynamic grid-connection characteristics of the SGM started by different starting MBs are compared. Finally, the MB-dragging-based starting of the 1-kW chain-rail-based SGESS prototype is tested for validation, and an experiment bench of SGM-grid connection is established to emulate the starting and grid-connection processes and evaluate their impacts on the grid. The experiment results demonstrate that the proposed method suppresses the inrush current successfully and enables smooth starting of SGM.

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基于质量块拖动的重力储能系统同步发电机/电机起动方法

重力储能系统（GESS）通常采用与电网直接相连的同步发电机-电动机（SGM），为可再生能源渗透率高的电力系统提供惯性和无功支持。然而，由于缺乏起动能力，GESS在实际应用中如何满足频繁启停的要求是一个关键的挑战。为了解决这一问题，本文以链式轨道边坡GESS （SGESS）为例，提出了一种基于质量块体（MB）拖曳的SGM启动方法。通过分析GESS的损耗成分，推导出起始MB的最佳质量测定方法。然后对1 kw和500 kw链轨式SGM的mb拖拽启动进行了仿真分析，比较了不同启动mb启动SGM的动态并网特性。最后，对基于1 kw链轨的SGESS原型机进行了mb拖曳启动验证试验，并建立了sgm并网试验台，对启动和并网过程进行仿真，评估其对电网的影响。实验结果表明，该方法有效地抑制了励磁涌流，实现了SGM的平稳启动。

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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来源期刊

IEEE Transactions on Industry Applications 工程技术-工程：电子与电气

CiteScore

9.90

自引率

9.10%

发文量

747

审稿时长

3.3 months

期刊介绍： The scope of the IEEE Transactions on Industry Applications includes all scope items of the IEEE Industry Applications Society, that is, the advancement of the theory and practice of electrical and electronic engineering in the development, design, manufacture, and application of electrical systems, apparatus, devices, and controls to the processes and equipment of industry and commerce; the promotion of safe, reliable, and economic installations; industry leadership in energy conservation and environmental, health, and safety issues; the creation of voluntary engineering standards and recommended practices; and the professional development of its membership.