NDLI: Power Control of a Non-Pitchable PMSG-Based Marine Current Turbine at Over-rated Current Speed with Flux-Weakening Strategy

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Power Control of a Non-Pitchable PMSG-Based Marine Current Turbine at Over-rated Current Speed with Flux-Weakening Strategy

Content Provider	Hyper Articles en Ligne (HAL)
Author	Zhou, Zhibin Scuiller, Franck Charpentier, Jean Fréderic Benbouzid, Mohamed Tang, Tianhao
Abstract	This paper deals with power control strategies for a fixed-pitch direct drive marine current turbine (MCT) when the marine current velocity exceeds the rated value corresponding to the MCT nominal power. At overrated marine current speed, the MCT control strategy is supposed to be changed from maximum power point tracking (MPPT) stage to constant power stage. In this paper, flux-weakening strategy is investigated to realize appropriate power control strategies at high marine current speeds. During flux-weakening operations, the generator can be controlled to produce nominal or over-nominal power for a specific speed range (constant power range). These two power control modes are compared and the constant power range is calculated in this paper. The relationship between the expected constant power range and generator parameters requirement (stator inductance, permanent magnet flux, nominal power coefficient) is analyzed in this paper. A Torque-based control with a robust feedback flux-weakening strategy is then carried out in the simulation. The proposed control strategies are tested in both high tidal speed and swell wave cases; the results validate the analysis and show the feasibility of the proposed control method.
Related Links	https://hal.science/hal-01213119/file/IEEE%20JOE%202015%20ZHOU.pdf
ISSN	03649059
Issue Number	3
Volume Number	40
Journal	IEEE Journal of Oceanic Engineering
Language	English
Publisher	HAL CCSD Institute of Electrical and Electronics Engineers
Publisher Date	2015-07-01
Access Restriction	Open
Subject Keyword	fixed-pitch flux-weakening high marine current speed PMSG Marine current turbine
Content Type	Text
Resource Type	Article
Subject	Ocean Engineering Mechanical Engineering Electrical and Electronic Engineering Physics and Astronomy

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