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Mitigating Wind Power Fluctuation Using Flywheel Energy Storage Systems

Greigarn, Tipakorn
http://rave.ohiolink.edu/etdc/view?acc_num=case1296591556

Abstract Details

2011, Master of Sciences (Engineering), Case Western Reserve University, EECS - System and Control Engineering.
As the penetration of wind energy increases, the effect of wind fluctuations has gained considerable importance. This thesis presents wind power fluctuation mitigation using a Flywheel Energy Storage System (FESS). An Interior Permanent Magnet Synchronous Machine (IPMSM) driven by an IGBT Voltage Source Converter that was chosen for the FESS due to its attractive features such as high dynamic efficiency, high speed capability, and low electrical losses. The IPMSM was controlled by Field Oriented Control which transform the the stator equivalent circuit from abc to dq coordinate. Nonlinear coupling between direct and quadrature axis was cancelled out by feedback linearization. A robust multi-input multi-output controller designed by Quantitative Feedback Theory (QFT) was used to controlled the feedback linearized system. Due to the saliency of the IPMSM rotor, both direct and quadrature axis currents can be used to generate torque. A new current coordinating technique was developed to determined the best combination of the currents. In low speed regime, the coordinator selects the currents combination according to Maximum Torque per Ampere Criterion to obtain high efficiency. High speed operation were also made possible by the coordinator's Flux Weakening Regime. A robust controller was designed using QFT to control the power of FESS injecting into the DC link of the wind farm. The FESS has proven to be effective in mitigating power fluctuation of a 10 MW wind farm in SimPowerSystems™ simulations.
Mario Garcia-Sanz, PhD (Advisor)
J. Iwan D. Alexander, PhD (Committee Member)
Vira Chankong, PhD (Committee Member)
Electrical Engineering

Recommended Citations

Citations

  • Greigarn, T. (2011). Mitigating Wind Power Fluctuation Using Flywheel Energy Storage Systems [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1296591556

    APA Style (7th edition)

  • Greigarn, Tipakorn. Mitigating Wind Power Fluctuation Using Flywheel Energy Storage Systems. 2011. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1296591556.

    MLA Style (8th edition)

  • Greigarn, Tipakorn. "Mitigating Wind Power Fluctuation Using Flywheel Energy Storage Systems." Master's thesis, Case Western Reserve University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1296591556

    Chicago Manual of Style (17th edition)

case1296591556
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© 2011, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.