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Flywheel Energy Storage and Dump Load to Control the Active Power Excess in a Wind Diesel Power System

Author

Listed:
  • Rafael Sebastián

    (Department of Electrical, Electronic and Control Engineering (DIEEC), UNED, 28040 Madrid, Spain)

  • Rafael Peña-Alzola

    (Technology and Innovation Centre, University of Strathclyde, Glasgow G1 1RD, Scotland, UK)

Abstract

Wind Diesel Power Systems (WDPS) are isolated microgrids which combine Wind Turbine Generators (WTGs) with Diesel Generators (DGs). The WDPS modelled in this article is composed of a DG, a WTG, consumer load, Dump Load (DL) and a Flywheel Energy Storage System (FESS). In the Wind-Diesel (WD) mode both the DG and WTG supply power to the consumers. The WDPS is simulated in the WD mode in the case that the WTG produced power exceeds the load consumption. This WTG excess power case is simulated in the subcases of DL and FESS turned off, only-DL and only-FESS. Simulations for the DL and FESS-off case show that the WTG excess power leads to a continuous system frequency increase, so that the tripping of the WTG Circuit Breaker (CB) is required to guarantee the WDPS power supply continuity. Simulations for the only-DL/only-FESS cases show that commanding the DL/FESS to consume controlled power, so that the required DG power to balance the system active power is positive, enables the DE speed governor to regulate the system frequency. Furthermore, the frequency and voltage variations in the DL/FESS cases are moderate and there is no need to trip the WTG-CB, so that the WDPS reliability and power quality are greatly improved. Additionally, the only-FESS case obtains better WDPS relative stability than the only-DL case.

Suggested Citation

  • Rafael Sebastián & Rafael Peña-Alzola, 2020. "Flywheel Energy Storage and Dump Load to Control the Active Power Excess in a Wind Diesel Power System," Energies, MDPI, vol. 13(8), pages 1-15, April.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:8:p:2029-:d:347460
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    References listed on IDEAS

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    1. Tiago Lukasievicz & Ricardo Oliveira & César Torrico, 2018. "A Control Approach and Supplementary Controllers for a Stand-Alone System with Predominance of Wind Generation," Energies, MDPI, vol. 11(2), pages 1-17, February.
    2. José Ignacio Sarasúa & Guillermo Martínez-Lucas & Carlos A. Platero & José Ángel Sánchez-Fernández, 2018. "Dual Frequency Regulation in Pumping Mode in a Wind–Hydro Isolated System," Energies, MDPI, vol. 11(11), pages 1-17, October.
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    Cited by:

    1. Jing Qian & Yakun Guo & Yidong Zou & Shige Yu, 2021. "Hamiltonian Modeling and Structure Modified Control of Diesel Engine," Energies, MDPI, vol. 14(7), pages 1-13, April.

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