Short-term energy storage system for hydraulic hybrid wind turbine transmission

Eric Mohr; Biswaranjan Mohanty; Kim A. Stelson

doi:10.1115/FPMC2020-2777

Short-term energy storage system for hydraulic hybrid wind turbine transmission

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

A Hydrostatic Transmission (HST) offers a variable ratio transmission for wind turbines that has a higher power to weight ratio than traditional gearboxes, and requires less maintenance. In a conventional turbine, when the wind speed increases above the rated speed, the blade pitch is controlled to dissipate excess energy and regulate the turbine at rated power. An energy storage system allows the turbine to temporarily operate above rated power, and capture the traditionally dissipated energy in an accumulator. When the wind speed drops below the rated speed, the energy in the accumulator is released, increasing the delivered power. This paper presents a high-fidelity mathematical model of the hydraulic hybrid wind turbine transmission. Simulation results for a series of step changes and for turbulent wind speed are investigated for a 60 kW turbine. Using a realistic turbulent wind data sample, energy production increased by 4% with a 52 liter accumulator with significantly smoother output power to the grid.

Original language	English (US)
Title of host publication	BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020
Publisher	American Society of Mechanical Engineers
ISBN (Electronic)	9780791883754
DOIs	https://doi.org/10.1115/FPMC2020-2777
State	Published - 2020
Event	BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020 - Virtual, Online Duration: Sep 9 2020 → Sep 11 2020

Publication series

Name	BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020

Conference

Conference	BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020
City	Virtual, Online
Period	9/9/20 → 9/11/20

Bibliographical note

Funding Information:
This project is funded by the National Science Foundation under grant 1634396. We also thanks Scott Lane from Linde hydraulics, for his constructive feedback on secondary pump unit. We are thankful to Michael Gust and Prof. James Van de Ven for the feedback and suggestions.

Publisher Copyright:
Copyright © 2020 ASME.

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Publisher link

10.1115/FPMC2020-2777

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Mohr, E., Mohanty, B., & Stelson, K. A. (2020). Short-term energy storage system for hydraulic hybrid wind turbine transmission. In BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020 Article V001T01A040 (BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020). American Society of Mechanical Engineers. https://doi.org/10.1115/FPMC2020-2777

Short-term energy storage system for hydraulic hybrid wind turbine transmission. / Mohr, Eric; Mohanty, Biswaranjan ; Stelson, Kim A.
BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020. American Society of Mechanical Engineers, 2020. V001T01A040 (BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Mohr, E, Mohanty, B & Stelson, KA 2020, Short-term energy storage system for hydraulic hybrid wind turbine transmission. in BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020., V001T01A040, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020, American Society of Mechanical Engineers, BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020, Virtual, Online, 9/9/20. https://doi.org/10.1115/FPMC2020-2777

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abstract = "A Hydrostatic Transmission (HST) offers a variable ratio transmission for wind turbines that has a higher power to weight ratio than traditional gearboxes, and requires less maintenance. In a conventional turbine, when the wind speed increases above the rated speed, the blade pitch is controlled to dissipate excess energy and regulate the turbine at rated power. An energy storage system allows the turbine to temporarily operate above rated power, and capture the traditionally dissipated energy in an accumulator. When the wind speed drops below the rated speed, the energy in the accumulator is released, increasing the delivered power. This paper presents a high-fidelity mathematical model of the hydraulic hybrid wind turbine transmission. Simulation results for a series of step changes and for turbulent wind speed are investigated for a 60 kW turbine. Using a realistic turbulent wind data sample, energy production increased by 4\% with a 52 liter accumulator with significantly smoother output power to the grid.",

author = "Eric Mohr and Biswaranjan Mohanty and Stelson, \{Kim A.\}",

note = "Funding Information: This project is funded by the National Science Foundation under grant 1634396. We also thanks Scott Lane from Linde hydraulics, for his constructive feedback on secondary pump unit. We are thankful to Michael Gust and Prof. James Van de Ven for the feedback and suggestions. Publisher Copyright: Copyright {\textcopyright} 2020 ASME.; BATH/ASME 2020 Symposium on Fluid Power and Motion Control, FPMC 2020 ; Conference date: 09-09-2020 Through 11-09-2020",

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N2 - A Hydrostatic Transmission (HST) offers a variable ratio transmission for wind turbines that has a higher power to weight ratio than traditional gearboxes, and requires less maintenance. In a conventional turbine, when the wind speed increases above the rated speed, the blade pitch is controlled to dissipate excess energy and regulate the turbine at rated power. An energy storage system allows the turbine to temporarily operate above rated power, and capture the traditionally dissipated energy in an accumulator. When the wind speed drops below the rated speed, the energy in the accumulator is released, increasing the delivered power. This paper presents a high-fidelity mathematical model of the hydraulic hybrid wind turbine transmission. Simulation results for a series of step changes and for turbulent wind speed are investigated for a 60 kW turbine. Using a realistic turbulent wind data sample, energy production increased by 4% with a 52 liter accumulator with significantly smoother output power to the grid.

AB - A Hydrostatic Transmission (HST) offers a variable ratio transmission for wind turbines that has a higher power to weight ratio than traditional gearboxes, and requires less maintenance. In a conventional turbine, when the wind speed increases above the rated speed, the blade pitch is controlled to dissipate excess energy and regulate the turbine at rated power. An energy storage system allows the turbine to temporarily operate above rated power, and capture the traditionally dissipated energy in an accumulator. When the wind speed drops below the rated speed, the energy in the accumulator is released, increasing the delivered power. This paper presents a high-fidelity mathematical model of the hydraulic hybrid wind turbine transmission. Simulation results for a series of step changes and for turbulent wind speed are investigated for a 60 kW turbine. Using a realistic turbulent wind data sample, energy production increased by 4% with a 52 liter accumulator with significantly smoother output power to the grid.

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Short-term energy storage system for hydraulic hybrid wind turbine transmission

Abstract

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Bibliographical note

UN SDGs

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