Flywheel energy storage systems: review and simulation for an isolated wind power system

R. Sebastián, R. Peña Alzola

Research output: Contribution to journalReview article

88 Citations (Scopus)

Abstract

In flywheel based energy storage systems (FESSs), a flywheel stores mechanical energy that interchanges in form of electrical energy by means of an electrical machine with a bidirectional power converter. FESSs are suitable whenever numerous charge and discharge cycles (hundred of thousands) are needed with medium to high power (kW to MW) during short-time periods (seconds-minutes). Monitoring of the FESS state of charge is simple and reliable as only the spinning speed is needed. The materials for the flywheel, the type of electrical machine, the type of bearings and the confinement atmosphere which all together determine the FESSs energy efficiency (>85) are reviewed. Main FESS applications: power quality, traction and aerospace are presented. Additionally in this paper it is presented the simulation of an isolated wind power system (IWPS) consisting of a wind turbine generator (WTG), a consumer load, a synchronous machine (SM) and a FESS. A low-speed iron flywheel driven by an asynchronous machine (ASM) is sized for the presented IWPS. The simulation results with graphs for system frequency, system voltage, active powers of the different elements, and FESS-ASM speed, direct and quadrature currents are presented showing that the FESS effectively smoothes the wind power and consumer load variations.

LanguageEnglish
Pages6803-6813
Number of pages11
JournalRenewable and Sustainable Energy Reviews
Volume16
Issue number9
DOIs
Publication statusPublished - Dec 2012

Fingerprint

Flywheels
Energy storage
Wind power
Bearings (structural)
Interchanges
Turbogenerators
Power converters
Power quality
Wind turbines
Energy efficiency
Iron

Keywords

  • Flywheel energy storage systems
  • Isolated power systems
  • Short-term simulation
  • Wind diesel
  • Wind power

Cite this

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Flywheel energy storage systems : review and simulation for an isolated wind power system. / Sebastián, R.; Peña Alzola, R.

In: Renewable and Sustainable Energy Reviews, Vol. 16, No. 9, 12.2012, p. 6803-6813.

Research output: Contribution to journalReview article

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T2 - Renewable and Sustainable Energy Reviews

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AB - In flywheel based energy storage systems (FESSs), a flywheel stores mechanical energy that interchanges in form of electrical energy by means of an electrical machine with a bidirectional power converter. FESSs are suitable whenever numerous charge and discharge cycles (hundred of thousands) are needed with medium to high power (kW to MW) during short-time periods (seconds-minutes). Monitoring of the FESS state of charge is simple and reliable as only the spinning speed is needed. The materials for the flywheel, the type of electrical machine, the type of bearings and the confinement atmosphere which all together determine the FESSs energy efficiency (>85) are reviewed. Main FESS applications: power quality, traction and aerospace are presented. Additionally in this paper it is presented the simulation of an isolated wind power system (IWPS) consisting of a wind turbine generator (WTG), a consumer load, a synchronous machine (SM) and a FESS. A low-speed iron flywheel driven by an asynchronous machine (ASM) is sized for the presented IWPS. The simulation results with graphs for system frequency, system voltage, active powers of the different elements, and FESS-ASM speed, direct and quadrature currents are presented showing that the FESS effectively smoothes the wind power and consumer load variations.

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