A novel flywheel energy storage system: Based on the barrel type with dual hubs combined flywheel driven by switched flux permanent magnet motor

Gao, Jingzhou; Zhao, Shengdun; Liu, Jiaji; Wei, Du; Zheng, Zhenhao; Jiang, Fei

doi:10.1016/j.est.2021.103604

Cited by 6 publications

(2 citation statements)

References 16 publications

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“…As a new physical energy storage device in recent years, the flywheel energy storage system uses the kinetic energy of a high-speed rotating body for energy storage and realizes the conversion of electric energy and kinetic energy by controlling the flywheel speed [1][2][3]. Compared with chemical energy storage, flywheel energy storage has high efficiency, long life, high safety, pollution-free, and so on [4][5]. PMSM has been widely used in flywheel motors because of its simple structure, high efficiency and excellent performance [6][7].…”

Section: Introductionmentioning

confidence: 99%

Application of a new type of super twist sliding mode control in flywheel energy storage

Liu

Wang

ZHOU

et al. 2023

IEICE Electron. Express

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Aiming at the error problem in estimating the speed of a permanent magnet synchronous motor(PMSM) using a sliding mode observer in a flywheel energy storage system, a super twist sliding mode observer(SMO) is used to replace the traditional sliding mode observer. A new saturation function is designed to replace the sign function. In addition, a constant sliding mode gain may lead to a decrease in observation accuracy during speed switching. An adaptive sliding mode gain is proposed to reduce chattering, The accurate estimation of the comprehensive speed range observer is enhanced, and the stability of the proposed observer is proved. On this basis, a super twist sliding mode speed controller is designed to replace the traditional PI controller to improve the observation performance of the system. The flywheel energy storage system's simulation model is built, and the flywheel energy storage system's constant speed standby and charging conditions are simulated. The simulation results verify the correctness and effectiveness of the improved super twist sliding mode observer in the flywheel motor.

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Section: Introductionmentioning

confidence: 99%

Application of a new type of super twist sliding mode control in flywheel energy storage

Liu

Wang

ZHOU

et al. 2023

IEICE Electron. Express

View full text Add to dashboard Cite

show abstract

“…In [16], a flywheel that stores 8 kWh and can reach a speed of 18000 rpm has been designed. There are also studies about the flywheel, which can store 20 kWh and 0.5 kWh [17][18].…”

Section: Introductionmentioning

confidence: 99%

Design of PMaSynRM for Flywheel Energy Storage System in Smart Grids

2023

ijSmartGrid

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In this study, a flywheel energy storage system (FESS) has been designed for smart grid applications. The requirements of the flywheel and electrical machine, which are the most important parts of FESS, have been determined. Analytical solutions approach has been performed for the flywheel with a capacity of 40 kWh. A high-speed permanent magnetassisted synchronous reluctance machine (PMaSynRM) has been designed with Ansys Motor-Cad to meet the requirements of system. The torque-speed-power graph, thermal situation, magnetic flux lines, efficiency map, power map, and power factor map of FESS were analysed and obtained using the finite element method. Analyses were performed using Ansys Maxwell and the Machine Toolkit plugin. The results showed that the designed FESS offers high efficiency, high speed, and high energy storage capacity to be used in the smart grid applications.

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Collaborative optimal scheduling of shared energy storage station and building user groups considering demand response and conditional value-at-risk

Shen

2023

Electric Power Systems Research

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A novel flywheel energy storage system: Based on the barrel type with dual hubs combined flywheel driven by switched flux permanent magnet motor

Cited by 6 publications

References 16 publications

Application of a new type of super twist sliding mode control in flywheel energy storage

Application of a new type of super twist sliding mode control in flywheel energy storage

Design of PMaSynRM for Flywheel Energy Storage System in Smart Grids

Collaborative optimal scheduling of shared energy storage station and building user groups considering demand response and conditional value-at-risk

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