Abstract
This paper presents a comprehensive analysis technique about harmonic resonance issues in megawatt grid-connected wind farms where the doubly fed induction generator (DFIG) is used. Wherein, firstly, the background theories of the series resonance, parallel resonance and their impacts on the electric system are described. Moreover, a suitable equivalent circuit of typical grid-connected DFIG wind farms for analyzing impedance in the frequency domain is proposed. Then, mathematical formulas are introduced detail to determine exactly orders and amplifications of the voltage and current distortions on both the medium-voltage (MV) bus and low-voltage (LV) bus. Lastly, results obtained from the proposed equivalent circuit and impedance analysis technique are compared to other results achieved with the detailed wind farm simulated in MATLAB/SimPowerSystems. As well, many different operation cases of the illustrative grid-connected DFIG wind farm, including parametric variations, are also examined to evaluate the accuracy and effectiveness of the proposed analysis technique.
Original language | English |
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Title of host publication | 3rd International Conference on Renewable Energy Research and Applications, ICRERA 2014 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 387-394 |
Number of pages | 8 |
ISBN (Electronic) | 9781479937950 |
DOIs | |
Publication status | Published - 2014 Jan 20 |
Event | 3rd International Conference on Renewable Energy Research and Applications, ICRERA 2014 - Milwaukee, United States Duration: 2014 Oct 19 → 2014 Oct 22 |
Other
Other | 3rd International Conference on Renewable Energy Research and Applications, ICRERA 2014 |
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Country/Territory | United States |
City | Milwaukee |
Period | 14/10/19 → 14/10/22 |
Keywords
- DFIG
- Grid-connected wind farm
- Harmonic and resonance issue
- Impedance analysis
- MATLAB/SimPowerSystems
ASJC Scopus subject areas
- Renewable Energy, Sustainability and the Environment