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Control of wind energy conversion systems based on the Modular Multilevel Matrix converter

Diaz, Matias; Cardenas, Roberto; Espinoza, Mauricio; Mora, Andreas; Rojas, Felix; Clare, Jon C.; Wheeler, Patrick


Matias Diaz

Roberto Cardenas

Mauricio Espinoza

Andreas Mora

Felix Rojas

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Professor of Power Electronics


The nominal power of single Wind Energy Conversion Systems (WECS) has been steadily growing, reaching power ratings close to 10MW. In the power conversion stage, medium-voltage power converters are replacing the conventional low-voltage back-to-back topology. Modular Multilevel Converters have appeared as a promising solution for Multi-MW WECSs, due to their modularity, and the capability to reach high nominal voltages. This paper discusses the application of the Modular Multilevel Matrix Converter (M3C) to drive MultiMW WECSs. The modelling and control systems required for this application are extensively analysed and discussed in this paper. The proposed control strategies enable decoupled operation of the converter, providing maximum power point tracking (MPPT) capability at the generator-side, grid code compliance at the grid-side [including Low Voltage Ride Through Control (LVRT)], and good steady state and dynamic performance for balancing the capacitor voltages in all the clusters. Finally, the effectiveness of the proposed control strategy is validated through simulations and experimental results conducted with a 27 power-cell prototype.


Diaz, M., Cardenas, R., Espinoza, M., Mora, A., Rojas, F., Clare, J. C., & Wheeler, P. (2017). Control of wind energy conversion systems based on the Modular Multilevel Matrix converter. IEEE Transactions on Industrial Electronics, 64(11),

Journal Article Type Article
Acceptance Date Jul 3, 2017
Publication Date Jul 28, 2017
Deposit Date Jul 21, 2017
Publicly Available Date Jul 28, 2017
Journal IEEE Transactions on Industrial Electronics
Print ISSN 0278-0046
Electronic ISSN 1557-9948
Publisher Institute of Electrical and Electronics Engineers
Peer Reviewed Peer Reviewed
Volume 64
Issue 11
Keywords Modular Multilevel Converters, Wind Energy Conversion Systems, Low Voltage Ride Through
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