Sizing design and implementation of a flywheel energy storage system for space applications

Aydin, Kutlay; Aydemir, M. Timur

doi:10.3906/elk-1306-206

Cited by 14 publications

(5 citation statements)

References 15 publications

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“…( 2). Considering similar studies in the literature, the minimum speed is determined for FESS [20]. This enables the control system of FESS to work more effectively.…”

Section: System Sizing and Design Of Flywheelmentioning

confidence: 99%

“…Since magnetic bearings are used in the system, mechanical friction loss for the flywheel is neglected. Wind loss of the system has been calculated assuming that it operates at the environment values established in similar studies in the literature [20]. Wind loss (𝑃 I*1) ) of the system is calculated with the help of Eq.…”

Section: System Sizing and Design Of Flywheelmentioning

confidence: 99%

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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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“…( 2). Considering similar studies in the literature, the minimum speed is determined for FESS [20]. This enables the control system of FESS to work more effectively.…”

Section: System Sizing and Design Of Flywheelmentioning

confidence: 99%

Section: System Sizing and Design Of Flywheelmentioning

confidence: 99%

Design of PMaSynRM for Flywheel Energy Storage System in Smart Grids

2023

ijSmartGrid

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“…The reference current used in the proposed motor drive algorithm is obtained by using Eq. (6) and (7). The transfer function ensuring the control of the motor current is obtained by using Eq.…”

Section: High Speed Flywheel Energy Storage Systemmentioning

confidence: 99%

“…This energy is used by the satellite in the region where the sun does not exist. Therefore, the energy of a satellite is provided by the solar panels in bright region [5,6].…”

Section: Introductionmentioning

confidence: 99%

A Method for Current Control of the Flywheel Energy Storage System Used in Satellites

Çelikel

Özdemir

2019

Teh. vjesn.

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Satellites have a dark region and a bright region in their orbit path. The flywheel energy storage unit is an electric energy provider for a satellite in the dark region. Brushless dc motors (BLDC) are used in the flywheel energy storage unit. The current surge of the BLDC motors is an undesirable situation for solar panels which are used in the satellite motion systems and satellite power systems. Therefore, the current reference method (CRM) is preferred in these systems. The setting of the controller parameters (proportional (P), integral (I) and derivative (D)) is an important problem for the control of the BLDC motor current. Optimum performance cannot be obtained by the calculation of PID parameters using conventional methods. In recent years, hybrid genetic algorithms (GA) are used in the solution of complex problems. In this study, a CRM method was proposed to protect the satellite power system and solar panels. The defined block diagram for the CRM method was used to control the current of the BLDC. In order to calculate conventional method and hybrid GA-based method, the performance of the PID controllers was compared by using MATLAB/SimPowerSystem blocks.

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“…Reference [20] studies a FESS for satellite applications and presents an algorithm for controlling the flywheel losses. The calculation method for aerodynamic and mechanical friction losses in flywheel storage systems is discussed in [21]. However, both systems estimate the windage losses based on empirical equations valid for atmospheric pressure conditions which will give inaccurate results if the flywheel system operates in lower pressure levels or vacuum conditions.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Standby Losses and Charging Cycles in Flywheel Energy Storage Systems

Amiryar

Pullen

2020

Energies

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Aerodynamic drag and bearing friction are the main sources of standby losses in the flywheel rotor part of a flywheel energy storage system (FESS). Although these losses are typically small in a well-designed system, the energy losses can become significant due to the continuous operation of the flywheel over time. For aerodynamic drag, commonly known as windage, there is scarcity of information available for loss estimation since most of the publications do not cover the partial vacuum conditions as required in the design of low loss energy storage flywheels. These conditions cause the flow regime to fall between continuum and molecular flow. Bearings may be of mechanical or magnetic type and in this paper the former is considered, typically hybridized with a passive magnetic thrust bearing. Mechanical bearing loss calculations have been extensively addressed in the open literature, including technical information from manufacturers but this has not previously been presented clearly and simply with reference to this application. The purpose of this paper is therefore to provide a loss assessment methodology for flywheel windage losses and bearing friction losses using the latest available information. An assessment of windage losses based on various flow regimes is presented with two different methods for calculation of windage losses in FESS under rarefied vacuum conditions discussed and compared. The findings of the research show that both methods closely correlate with each other for vacuum conditions typically required for flywheels. The effect of the air gap between the flywheel rotor and containment is also considered and justified for both calculation methods. Estimation of the bearing losses and considerations for selection of a low maintenance, soft mounted, bearing system is also discussed and analysed for a flywheel of realistic dimensions. The effect of the number of charging cycles on the relative importance of flywheel standby losses has also been investigated and the system total losses and efficiency have been calculated accordingly.

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Sizing design and implementation of a flywheel energy storage system for space applications

Cited by 14 publications

References 15 publications

Design of PMaSynRM for Flywheel Energy Storage System in Smart Grids

Design of PMaSynRM for Flywheel Energy Storage System in Smart Grids

A Method for Current Control of the Flywheel Energy Storage System Used in Satellites

Analysis of Standby Losses and Charging Cycles in Flywheel Energy Storage Systems

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