Optimal reactive power dispatch of permanent magnet synchronous generator-based wind farm considering levelised production cost minimisation

Jian Li, Ni Wang, Dao Zhou, Weihao Hu, Qi Huang, Zhe Chen and Frede Blaabjerg

Renewable Energy, 2020, vol. 145, issue C, 1-12

Abstract: As wind power penetration increases, large wind farms (WFs) need to provide reactive power according to modern grid codes. Permanent magnet synchronous generator-based wind turbines (WTs) can generate reactive power, by assigning the appropriate reactive power to each WT to meet the reactive power requirements of the grid. This is a more economical method than setting up additional reactive power compensation equipment. This study proposes an optimal reactive power dispatch strategy for minimising a levelised production cost, and is implemented in two ways: minimising the power loss of a WF, and maximising the lifetime of WTs. The reactive power references of each WT are chosen as the optimisation variables, and a particle swarm optimisation algorithm is adopted to solve the optimisation problem. The proposed and traditional reactive power dispatch strategies are demonstrated and compared on a WF with 25 WTs to validate the effectiveness of the proposed approach.

Keywords: Reactive power dispatch; Permanent magnet synchronous generator; Power loss; Lifetime; Levelised production cost (search for similar items in EconPapers)
Date: 2020
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Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:145:y:2020:i:c:p:1-12

DOI: 10.1016/j.renene.2019.06.014

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