| 引用本文: | 乔 健,陈林旭,李建文,等.重力储能并网系统的建模仿真技术研究[J].电力系统保护与控制,2026,54(01):179-187.[点击复制] |
| QIAO Jian,CHEN Linxu,LI Jianwen,et al.Research on modeling and simulation techniques for grid-connected gravity energy storage systems[J].Power System Protection and Control,2026,54(01):179-187[点击复制] |
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| 摘要: |
| 针对重力储能并网系统物理机理不清晰、建模仿真技术不成熟等问题，提出了一种包含重力储能机械部分、永磁同步电机及并网变流器的建模仿真方法。首先，基于重力势能与电能的转换原理，构建重力储能的能量流动模型、运动学及功率模型，量化充电与放电状态下的能量损耗与功率动态特性。然后，建立永磁同步电机在dq坐标系下的数学模型，针对机侧变流器设计零d轴电流控制方案，针对网侧变流器设计电网电压定向矢量控制方案，实现电机转矩和并网功率的精准调控。最后，利用MATLAB/Simulink平台搭建重力储能并网系统仿真模型。仿真结果表明重力储能系统输出功率能够准确跟踪电网需求功率的变化，并网电压电流波形正弦度高，电机转速和转矩响应快速，验证了所提重力储能并网系统建模仿真技术的有效性。 |
| 关键词: 重力储能 永磁同步电机 并网变流器 动态建模 |
| DOI：10.19783/j.cnki.pspc.256113 |
| 投稿时间：2025-02-21修订日期：2025-05-21 |
| 基金项目:国家自然科学基金项目资助(52507099)；中央高校基本科研业务费专项资金资助(2025MS105，2024JY002) |
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| Research on modeling and simulation techniques for grid-connected gravity energy storage systems |
| QIAO Jian1,CHEN Linxu1,LI Jianwen1,YIN Xin2,WANG Yikai1,YIN Xianggen3 |
| (1. State Key Laboratory of Alternate Electrical Power System with Renewable Energy Resources (North China Electric
Power University), Baoding 071003, China; 2. School of Automation, Wuhan University of Technology,
Wuhan 430070, China; 3. State Key Laboratory of Advanced Electromagnetic Engineering and Technology
(Huazhong University of Science and Technology), Wuhan 430074, China) |
| Abstract: |
| Aiming at the problems of unclear physical mechanism and immature modeling and simulation techniques for grid-connected gravity energy storage systems, a comprehensive modeling and simulation method incorporating the mechanical subsystem of gravity energy storage, a permanent magnet synchronous motor (PMSM), and a grid-connected converter is proposed. First, based on the energy conversion principles of gravitational potential energy and electric energy, the energy flow, kinematics and power models of gravity energy storage are established to quantify energy losses and dynamic power characteristics under charging and discharging conditions. Then, the mathematical model of the PMSM in the d-q reference frame is developed. A zero d-axis current control scheme is designed for the machine-side converter, while the grid voltage-oriented vector control scheme is designed for the grid-side converter, to realize precise control of motor torque and grid-connected power. Finally, a simulation model of the grid-connected gravity energy storage system is built on the MATLAB/Simulink platform. Simulation results show that the output power of the gravity energy storage system can accurately track variations in required grid power, with highly sinusoidal voltage and current waveforms, fast responses of motor speed and torque, thereby verifying the effectiveness of the proposed modeling and simulation techniques for grid-connected gravity energy storage systems. |
| Key words: gravity energy storage permanent magnet synchronous motor grid-connected converter dynamic modeling |
