Research Review of Flywheel Energy Storage Technology

Jing, Lili; Xue, Xiaochuan; Guo, Xiaoxia

doi:10.1088/1755-1315/558/5/052034

Cited by 2 publications

(2 citation statements)

References 1 publication

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“…The flywheel energy storage industry is in the transition phase from R&D demonstration to the early stage of commercialization and is gradually moving toward an industrialized system. However, there has been little research in the field of reliable operation control for drive motors, and flywheel energy storage technology is on the rise [1,2].…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Control Strategy for Phase Loss of the Flywheel Energy Storage Motor

Zheng

Jia

et al. 2023

Electronics

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This study presents a bridge arm attached to the FESS motor’s neutral point and reconstructs the mathematical model after a phase-loss fault to assure the safe and dependable functioning of the FESS motor after such fault. To increase the fault tolerance in FESS motors with phase-loss faults, 3D-SVPWM technology was utilized to operate the motor. The parameters of the zero-axis current compensation control were modified based on the dual-closed-loop control strategy for the speed and current. The simulation experiments conducted in this study demonstrate that the fault-tolerant control strategy adopted can significantly reduce excessive torque pulsation after the phase failure of the FESS motor, stabilize the motor output torque, and improve the fault-tolerance performance of the FESS motor’s control system for the FESS motor.

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Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Control Strategy for Phase Loss of the Flywheel Energy Storage Motor

Zheng

Jia

et al. 2023

Electronics

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“…The flywheel energy storage system is a device that uses a high-speed rotating rotor to store energy, which has high requirements for the speed of the rotor and the stability of the magnetic bearing. 1 By using the appropriate magnetic bearing in the flywheel energy storage system, the rotor speed can be improved effectively, so that the flywheel can obtain greater energy storage density. The rotor will have a gyroscopic effect during the flywheel high-speed rotation, which will seriously affect the stability of the system.…”

Section: Introductionmentioning

confidence: 99%

Structural optimization and dynamic characteristics of the new type 3-degrees of freedom axial and radial hybrid magnetic bearing

Xiao

Xiwu

Cheng

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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A new type of three degrees of freedom axial-radial hybrid magnetic bearing (3-DOF ARHMB) with compact structure, shorter axial length and smaller volume is proposed for the flywheel energy storage system. The axial direction adopts the permanent magnet biased thrust bearing (PMB) made of soft magnetic composite materials (SMCs). In the radial direction, the laminated structure is used to reduce the eddy current, and the Halbach array is introduced to strengthen the magnetic density of the radial air gap. Firstly, the dynamic magnetic flux distribution of the 3-DOF ARHMB is analyzed by the finite element method (FEM). Based on the equivalent magnetic circuit method, the equivalent reluctance model with comprehensive consideration of eddy current effect and magnetic leakage effect is established, and then the frequency responses are analyzed. Secondly, a constraint model coupled with structural parameters, equivalent reluctance and magnetic leakage coefficient is established, and an adaptive particle swarm optimization algorithm (APSO) is used to optimize the bearing parameters. Finally, based on the equivalent reluctance model, the axial and radial force-current factor and force-displacement factor are derived, and the dynamic characteristics of bearings with different structures and materials are compared and analyzed. The results show that the new 3-DOF ARHMB made of SMCs can provide much larger and more stable magnetic force and larger bandwidth than that made of carbon steel materials, and has better dynamic characteristics under higher-frequency conditions, which can meet the industrial requirements of flywheel energy storage system.

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Research Review of Flywheel Energy Storage Technology

Cited by 2 publications

References 1 publication

Fault-Tolerant Control Strategy for Phase Loss of the Flywheel Energy Storage Motor

Fault-Tolerant Control Strategy for Phase Loss of the Flywheel Energy Storage Motor

Structural optimization and dynamic characteristics of the new type 3-degrees of freedom axial and radial hybrid magnetic bearing

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