High frequency PMSM and inverter losses analysis-application to flywheel system on real cycle operation

Sough, Ml.; Depernet, Daniel; Dubas, Frédéric; Gaultier, G.; Boualem, Benali; Espanet, Christophe

doi:10.1109/vppc.2011.6043106

Cited by 7 publications

(3 citation statements)

References 8 publications

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“…The design of a motor/generator for a long-term flywheel is a very important issue, which strongly influences system performance, as the process of energy conversion from mechanical into electrical and vice versa happens in the electrical machine. The design process for vacuum rated operation and a sophisticated purpose of driving a flywheel should be based primarily on heat transfer conditions [10].…”

Section: Proposed Design Methodsmentioning

confidence: 99%

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Соколов

Jastrzębski

Saarakkala

et al. 2016

2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)

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This paper presents a novel analytical method for electro-mechanical design of a high speed long-term flywheel energy storage system and thermal evaluation of possible operating modes of the system. Flywheel's composite shell rotor along with the motor/generator unit are assumed to be placed into a sealed vacuum chamber, which presents a challenge of heat transfer, produced by rotor losses. Developed method takes into account thermal radiation properties of the rotor and is realised using Mathcad software, which allows for quick investigation of any flywheel configuration. The method involves calculations for preliminary rotor sizing and determining achievable operation modes, while keeping the rotor under a specified temperature limit. Results of using this method for studying dependencies of thermal performance on initial system parameters are presented and conclusions are drawn. Based on the conducted study, recommendations on system design considerations are given.

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Section: Proposed Design Methodsmentioning

confidence: 99%

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Соколов

Jastrzębski

Saarakkala

et al. 2016

2016 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)

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“…Flywheels: This solution allows quick charging. However, the cost is high, have moving parts, safety and reliability need to be improved and the technology is technically not yet ready for commercial operation [3].…”

Section: A On-board Energy Storage Optionsmentioning

confidence: 99%

An On-board Energy Storage System for Catenary Free Operation of a Tram

Al-Ezee¹,

Tennakoon²,

Taylor³

et al. 2024

RE&PQJ

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Modern cities require zero emissions, silent, and energy efficient transport solutions that have low or no visual impact on the environment. On-board energy storage systems have a significant role in providing the required energy during catenary free operation of trams and in recovering regenerated energy from braking. The energy consumption of a commercial tram for a total journey length of 13km has been simulated for proper sizing of the onboard energy storage. The energy storage system is recharged during stops at stations through wayside power delivery technologies and by the use of available braking energy. Due to this, the on-board energy storage system is required to provide a catenary free gap of about 1km. A power conversion system, Bi-Directional DC-DC converter, and a charge/discharge energy management system are required for the realisation of catenary free system.

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“…Recent studies showed that three‐level inverters can help to reduce the power losses of the electrical machine. Although three‐level inverters have efficiencies lower than two‐level inverters, they can be placed outside the vacuum cylinder with a more effective cooling of the flywheel system [13]. Flywheel systems for energy saving of light railway vehicles are still in development and a recent agreement between Alstom Transport and Williams group, including Williams F1 team, will lead to the installation of Williams hybrid power flywheels onboard Alstom's Citadis trams [14].…”

Section: Comparison Of Energy Storage Devices For Railway Applicationsmentioning

confidence: 99%

Recent developments and applications of energy storage devices in electrified railways

Ratniyomchai

Hillmansen

Tricoli

2014

IET Electrical Systems in Transportation

142

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This study presents the recent application of energy storage devices in electrified railways, especially batteries, flywheels, electric double layer capacitors and hybrid energy storage devices. The storage and reuse of regenerative braking energy is managed by energy storage devices depending on the purpose of each system. The advantages resulting from the use of energy storage devices are presented by observing the results of both verification tests and practical applications in passenger services. Several real installations of energy storage for railways are shown and compared by using the Ragone plot. The effect of the use of energy storage devices on electrified railways of the future is discussed. Finally, a discussion on the recent applications and developments of energy storage devices is presented in this study. The effective use of energy storage devices is characterised on the basis of the specific applications and current trends of the research undertaken by public bodies and manufacturers.

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High frequency PMSM and inverter losses analysis-application to flywheel system on real cycle operation

Cited by 7 publications

References 8 publications

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

Analytical method for design and thermal evaluation of a long-term flywheel energy storage system

An On-board Energy Storage System for Catenary Free Operation of a Tram

Recent developments and applications of energy storage devices in electrified railways

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