Short-Term Frequency Response of a DFIG-Based Wind Turbine Generator for Rapid Frequency Stabilization
Abstract
This paper proposes a short-term frequency-response scheme of a doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) for improving rotor speed recovery and frequency nadir. In the energy-releasing period, to improve the frequency nadir and rotor speed convergence by releasing a large amount of kinetic energy stored in the rotating masses in a DFIG-based WTG, the power reference is increased up to the torque limit referred to the power and reduces along with it for a predefined period which is determined based on the occurrence time of the frequency nadir in a power grid. Then, the reference decreases so that the rotor speed is forced to be converged to the preset value in the stable operating region of the rotor speed. In the energy-absorbing period, to quickly recover the rotor speed, the reference smoothly decreases with the rotor speed and time during a predefined period until it intersects with the maximum power point tracking curve. The simulation results demonstrate that the proposed scheme successfully achieves rapid frequency stabilization with the improved frequency nadir under various wind conditions based on the IEEE 14-bus system.
- Authors:
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
- OSTI Identifier:
- 1422244
- Alternate Identifier(s):
- OSTI ID: 1415128
- Report Number(s):
- NREL/JA-5D00-70722
Journal ID: ISSN 1996-1073; ENERGA; PII: en10111863
- Grant/Contract Number:
- AC36-08-GO28308; AC36-08GO28308
- Resource Type:
- Published Article
- Journal Name:
- Energies
- Additional Journal Information:
- Journal Name: Energies Journal Volume: 10 Journal Issue: 11; Journal ID: ISSN 1996-1073
- Publisher:
- MDPI AG
- Country of Publication:
- Switzerland
- Language:
- English
- Subject:
- 17 WIND ENERGY; 42 ENGINEERING; short-term frequency response; frequency nadir; doubly-fed induction generator; torque limit; frequency stabilization; rotor speed convergence
Citation Formats
Yang, Dejian, Kang, Moses, Muljadi, Eduard, Gao, Wenzhong, Hong, Junhee, Choi, Jaeseok, and Kang, Yong. Short-Term Frequency Response of a DFIG-Based Wind Turbine Generator for Rapid Frequency Stabilization. Switzerland: N. p., 2017.
Web. doi:10.3390/en10111863.
Yang, Dejian, Kang, Moses, Muljadi, Eduard, Gao, Wenzhong, Hong, Junhee, Choi, Jaeseok, & Kang, Yong. Short-Term Frequency Response of a DFIG-Based Wind Turbine Generator for Rapid Frequency Stabilization. Switzerland. https://doi.org/10.3390/en10111863
Yang, Dejian, Kang, Moses, Muljadi, Eduard, Gao, Wenzhong, Hong, Junhee, Choi, Jaeseok, and Kang, Yong. Tue .
"Short-Term Frequency Response of a DFIG-Based Wind Turbine Generator for Rapid Frequency Stabilization". Switzerland. https://doi.org/10.3390/en10111863.
@article{osti_1422244,
title = {Short-Term Frequency Response of a DFIG-Based Wind Turbine Generator for Rapid Frequency Stabilization},
author = {Yang, Dejian and Kang, Moses and Muljadi, Eduard and Gao, Wenzhong and Hong, Junhee and Choi, Jaeseok and Kang, Yong},
abstractNote = {This paper proposes a short-term frequency-response scheme of a doubly-fed induction generator (DFIG)-based wind turbine generator (WTG) for improving rotor speed recovery and frequency nadir. In the energy-releasing period, to improve the frequency nadir and rotor speed convergence by releasing a large amount of kinetic energy stored in the rotating masses in a DFIG-based WTG, the power reference is increased up to the torque limit referred to the power and reduces along with it for a predefined period which is determined based on the occurrence time of the frequency nadir in a power grid. Then, the reference decreases so that the rotor speed is forced to be converged to the preset value in the stable operating region of the rotor speed. In the energy-absorbing period, to quickly recover the rotor speed, the reference smoothly decreases with the rotor speed and time during a predefined period until it intersects with the maximum power point tracking curve. The simulation results demonstrate that the proposed scheme successfully achieves rapid frequency stabilization with the improved frequency nadir under various wind conditions based on the IEEE 14-bus system.},
doi = {10.3390/en10111863},
journal = {Energies},
number = 11,
volume = 10,
place = {Switzerland},
year = {Tue Nov 14 00:00:00 EST 2017},
month = {Tue Nov 14 00:00:00 EST 2017}
}
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