Parallel Operation of Flywheel Energy Storage Systems in a Microgrid using Droop Control

Nemsi, Salima; Belfedhal, S.; Makhloufi, Saida; Barazane, L.

doi:10.1109/icweaa.2018.8605095

Cited by 7 publications

(2 citation statements)

References 12 publications

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“…Generally, flywheel converts the electrical power to the mechanical power using an electrical machine that is coupled with certain mass, which is storing this power on kinetic energy form. On the other side, flywheel can convert this mechanical energy to electrical power using the same machine but from the opposite way, as well as the inertia movement turns the electrical machine to produce an electrical power (Nemsi et al, 2016). This phenomenon makes the flywheel have the behavior of dynamic load.…”

Section: Flywheelmentioning

confidence: 99%

Frequency control of a wind turbine generator–flywheel system

et al. 2017

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The aim of this article is to propose an enhanced frequency regulator of a wind turbine generator associated with a flywheel applying an adaptive fuzzy proportional integral control, to supply a stand-alone load at 50 Hz. The flywheel energy storage system is used to balance the produced and consumed powers; it means the flywheel stores energy in case of power excess and delivers it in the opposite case. This power flow control stabilizes more the frequency around the set point. This hybrid renewable energy system is simulated by SIMPOWER in MATLAB Simulink software. Furthermore, performance improvement of the proposed new control is validated by the obtained satisfying results.

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Section: Flywheelmentioning

confidence: 99%

Frequency control of a wind turbine generator–flywheel system

et al. 2017

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“…The results show that the FAESS improves the stability of grid system, but the internal power distribution has not been studied in depth. In [14][15][16], an optimal control method aimed at FAESS is proposed for the grid-connected micro-grid. The upper optimization center establishes a corresponding charging-discharging optimized model according to the power vacancy and rotating speed of each flywheel, and solves the power parameter of each flywheel.…”

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confidence: 99%

Charging–Discharging Control Strategy for a Flywheel Array Energy Storage System Based on the Equal Incremental Principle

et al. 2019

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The widely used flywheel energy storage (FES) system has such advantages as high power density, no environment pollution, a long service life, a wide operating temperature range, and unlimited charging-discharging times. The flywheel array energy storage system (FAESS), which includes the multiple standardized flywheel energy storage unit (FESU), is an effective solution for obtaining large capacity and high-power energy storage. In this paper, the strategy for coordinating and controlling the charging-discharging of the FAESS is studied in depth. Firstly, a deep analysis is conducted on the loss generated during the charging-discharging process of the FESU. The results indicate that the loss is related to the charging-discharging of power. To solve the problems of over-charging, over-discharging, and overcurrent caused by traditional charging-discharging control strategies, this paper proposes a charging-discharging coordination control strategy based on the equal incremental principle (EIP). This strategy aims to minimize the total loss and establish a mathematical model of optimal coordination control with the constraints of total charging-discharging power, rated power limit, over-charging, over-discharging, and overcurrent. Based on the EIP, the optimal distribution scheme of power charging-discharging is determined. Secondly, this paper gives the specific implementation scheme of the optimal coordinated control strategy. Lastly, the charging-discharging coordinated control strategy is verified by examples. The results show that the coordinated control strategy can effectively reduce the loss during the charging-discharging process and can prevent over-charging, over-discharging, and overcurrent of the system. Overall, it has a better control effect than the existing charging-discharging control strategies.Energies 2019, 12, 2844 2 of 27 speed, a limited recycling time, and a short service life. At the same time, the replacement of batteries will significantly increase operating costs [4]. In addition, wasted batteries pollute the environment.Flywheel energy storage (FES) is a form of energy storage that uses a high-speed rotating flywheel rotor as a carrier to convert electrical energy into mechanical energy. It has the advantages of high power density, no environmental pollution, a long service life, and an almost unlimited charging-discharging time. Therefore, FES has been widely used in various fields, including renewable energy power generation, rail brake energy recovery, uninterrupted power supply (UPS), frequency modulation and voltage regulation in power systems, satellite energy storage, and attitude adjustment [5,6]. There are two main technical approaches used to acquire a larger storage capacity, higher charging-discharging power, and longer backup time. One is to develop a large-capacity single-unit FES system, and the other one is to connect multiple standardized flywheel energy storage units (FESUs) in parallel to form a flywheel array energy storage system (FAESS). The single large-capacity ...

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Distributed cooperative control of a flywheel array energy storage system

Lyu

Lin

2023

Intl J Robust & Nonlinear

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Parallel Operation of Flywheel Energy Storage Systems in a Microgrid using Droop Control

Cited by 7 publications

References 12 publications

Frequency control of a wind turbine generator–flywheel system

Frequency control of a wind turbine generator–flywheel system

Charging–Discharging Control Strategy for a Flywheel Array Energy Storage System Based on the Equal Incremental Principle

Distributed cooperative control of a flywheel array energy storage system

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