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Energies 2017, 10(7), 856; https://doi.org/10.3390/en10070856

Review of Reactive Power Dispatch Strategies for Loss Minimization in a DFIG-based Wind Farm

1
Department of Energy Technology, Aalborg University, Aalborg 9220, Denmark
2
National Renewable Energy Laboratory, Golden, CO 80401, USA
*
Author to whom correspondence should be addressed.
Academic Editor: Fernando Porté-Agel
Received: 30 April 2017 / Revised: 7 June 2017 / Accepted: 21 June 2017 / Published: 27 June 2017
(This article belongs to the Special Issue Wind Turbine 2017)
Full-Text   |   PDF [3543 KB, uploaded 28 June 2017]   |  

Abstract

This paper reviews and compares the performance of reactive power dispatch strategies for the loss minimization of Doubly Fed Induction Generator (DFIG)-based Wind Farms (WFs). Twelve possible combinations of three WF level reactive power dispatch strategies and four Wind Turbine (WT) level reactive power control strategies are investigated. All of the combined strategies are formulated based on the comprehensive loss models of WFs, including the loss models of DFIGs, converters, filters, transformers, and cables of the collection system. Optimization problems are solved by a Modified Particle Swarm Optimization (MPSO) algorithm. The effectiveness of these strategies is evaluated by simulations on a carefully designed WF under a series of cases with different wind speeds and reactive power requirements of the WF. The wind speed at each WT inside the WF is calculated using the Jensen wake model. The results show that the best reactive power dispatch strategy for loss minimization comes when the WF level strategy and WT level control are coordinated and the losses from each device in the WF are considered in the objective. View Full-Text
Keywords: doubly fed induction generator; reactive power dispatch; wind farm; loss minimization doubly fed induction generator; reactive power dispatch; wind farm; loss minimization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zhang, B.; Hu, W.; Hou, P.; Tan, J.; Soltani, M.; Chen, Z. Review of Reactive Power Dispatch Strategies for Loss Minimization in a DFIG-based Wind Farm. Energies 2017, 10, 856.

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