Articles | Volume 5, issue 4
Wind Energ. Sci., 5, 1237–1252, 2020

Special issue: Wind Energy Science Conference 2019

Wind Energ. Sci., 5, 1237–1252, 2020

Research article 01 Oct 2020

Research article | 01 Oct 2020

Comparison of electrical collection topologies for multi-rotor wind turbines

Paul Pirrie et al.

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Cited articles

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ABB: 3AUA0000231755 Rev A: ABB wind turbine converters – ACS880, 800 kW to 8 MW, available at: (last access: 10 August 2020), 2018. a, b
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Bak, C., Zahle, F., Bitsche, R., Kim, T., Yde, A., Henriksen, L. C., Natarajan, A., and Hansen, M.: Description of the DTU 10 MW Reference Wind Turbine, DTU Wind Energy Report-I-0092, DTU Wind Energy, 2013. a
Short summary
Multi-rotor wind turbines are an innovative solution to achieving cost-effective large-scale wind turbines. They utilize a large number of small rotors connected to one support structure instead of one large rotor. Benefits include reduction in cost, transport and installation simplicity, modular design, and standardization. This work compares different electrical systems in terms of cost, mass and efficiency and finds a star-type system (each rotor has its own cable) to be the most suitable.