Optimized dispatch of wind farms with power control capability for power system restoration

doi:10.1007/s40565-017-0341-9

Home > Archive>Volume 5, Issue 6, 2017 >908-916. DOI:10.1007/s40565-017-0341-9

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Optimized dispatch of wind farms with power control capability for power system restoration

DOI:

10.1007/s40565-017-0341-9

Author:

Yunyun XIE
Yunyun XIE
School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
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Changsheng LIU
Changsheng LIU
School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
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Qiuwei WU
Qiuwei WU
Department of Electrical Engineering, Centre for Electric Power and Energy, Technical University of Denmark, Kgs. 2800, Lyngby, Denmark
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Kairong LI
Kairong LI
School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
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Qian ZHOU
Qian ZHOU
Electric Power Research Institute of State Grid Jiangsu Electric Power Company, Nanjing 211103, China
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Minghui YIN
Minghui YIN
School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China
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Affiliation:

1 School of Automation, Nanjing University of Science and Technology, Nanjing 210094, China 2 Department of Electrical Engineering, Centre for Electric Power and Energy, Technical University of Denmark, Kgs. 2800, Lyngby, Denmark 3 Electric Power Research Institute of State Grid Jiangsu Electric Power Company, Nanjing 211103, China

Fund Project:

This work was supported by the National Natural Science Foundation of China (No. 51507080), the Science and Technology Project of State Grid Corporation of China (5228001600DT).

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Abstract:

As the power control technology of wind farms develops, the output power of wind farms can be constant, which makes it possible for wind farms to participate in power system restoration. However, due to the uncertainty of wind energy, the actual output power can’t reach a constant dispatch power in all time intervals, resulting in uncertain power sags which may induce the frequency of the system being restored to go outside the security limits. Therefore, it is necessary to optimize the dispatch of wind farms participating in power system restoration. Considering that the probability distribution function (PDF) of transient power sags is hard to obtain, a robust optimization model is proposed in this paper, which can maximize the output power of wind farms participating in power system restoration. Simulation results demonstrate that the security constraints of the restored system can be kept within security limits when wind farm dispatch is optimized by the proposed method.

Key words:Blackout, Dispatch optimization of wind farm, Power control of wind farm, System restoration, Uncertainty of wind energy

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Online: November 27,2017
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