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Correction published on 10 April 2018, see Energies 2018, 11(4), 882.

Open AccessArticle
Energies 2017, 10(7), 888; https://doi.org/10.3390/en10070888

Sensorless Control for the EVT-Based New Dual Power Flow Wind Energy Conversion System

1
College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
2
School of Electrical Engineering, Southeast University, Nanjing 210096, China
*
Author to whom correspondence should be addressed.
Received: 15 May 2017 / Revised: 6 June 2017 / Accepted: 20 June 2017 / Published: 30 June 2017
(This article belongs to the Special Issue Electric Machines and Drives for Renewable Energy Harvesting 2017)
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Abstract

The dual power flow wind energy conversion system (DPF-WECS) is a novel system which is based on the electrical variable transmission (EVT) machine. The proposed sensorless control for the DPF-WECS is based on the model reference adaptive system (MRAS) observer by combining the sliding mode (SM) theory. The SM-MRAS observer is on account of the calculations without the requirement of the proportional-integral (PI) loop which exists in the classical MRAS observer. Firstly, the sensorless algorithm is applied in the maximum power point tracking (MPPT) control considering the torque loss for the outer rotor of the EVT. Secondly, the sensorless control is adopted for the inner rotor control of the EVT machine. The proposed sensorless control method based on the SM-MRAS for the DPF-WECS is verified by the simulation and experimental results. View Full-Text
Keywords: dual power flow (DPF); electrical variable transmission (EVT); wind energy conversion system (WECS); sensorless; sliding mode (SM); model reference adaptive system (MRAS); maximum power point tracking (MPPT) dual power flow (DPF); electrical variable transmission (EVT); wind energy conversion system (WECS); sensorless; sliding mode (SM); model reference adaptive system (MRAS); maximum power point tracking (MPPT)
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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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Zhu, Y.; Cheng, M.; Zang, H. Sensorless Control for the EVT-Based New Dual Power Flow Wind Energy Conversion System. Energies 2017, 10, 888.

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