Research on Control Strategy of Super Capacitor Energy Storage System in Traction Elevator

Xun, Qian; Quan, Lidi; Xu, Yun

doi:10.2991/esm-16.2016.37

Cited by 2 publications

(1 citation statement)

References 12 publications

(13 reference statements)

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“…The FESS mainly functions in three working states, namely mode of storing energy, maintaining energy, and discharging energy [8]. Through coordinated control, the flywheel energy storage system realizes smooth switching under different working modes, realizes energy storage and feedback, and ensures the stability of load operation.…”

Section: Train Propulsion Systemmentioning

confidence: 99%

Design and Optimization of Flywheel Energy Storage System for Rail Transit

Gao,

Cai,

Guo

et al. 2023

J. Phys.: Conf. Ser.

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At present, the urban rail transit system has problems such as energy waste in the braking process and unstable grid voltage in the start-stop state. Aiming at the problems caused by the start-stop state of rail transit, considering the energy saving and voltage stability requirements of system energy management, a flywheel energy storage system (FESS) specially used for rail transit is designed. The energy system (FESS) can feed back the braking energy stored by the flywheel to the urban rail train power system when the rail train starts to cause the voltage and frequency of the traction microgrid to change. This paper proposes a flywheel energy management system based on a permanent magnet synchronous motor (PMSM), which can realize efficient energy management through efficient control of the flywheel side motor. The flywheel side permanent magnet synchronous motor adopts an improved flywheel speed expansion energy storage control strategy based on current feedforward control to improve the fast response capability of the flywheel, ensuring the output power of the flywheel at high speed. In addition, a specific multi-threshold voltage single FESS control strategy is suggested, which improves the energy-saving and voltage-stabilizing performance of the system.

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Section: Train Propulsion Systemmentioning

confidence: 99%