By Topic

Operation of Grid-Connected Cross-Flow Water Turbines in the Stall Region by Direct Power Control

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Matthieu Hauck ; Grenoble Electrical Engineering Laboratory (G2ELab), Grenoble National Institute of Technology, Grenoble, France ; Iulian Munteanu ; Antoneta Iuliana Bratcu ; Seddik Bacha
more authors

This paper proposes a new method of controlling cross-flow-water-turbine (CFWT)-based generation systems, having fixed pitch, by power regulation. The method consists of directly controlling the electrical generator power, as imposed by a dispatcher, without employing an inner rotational speed control loop. The proposed control approach represents the base for the operation framework (i.e., output power and rotational speed limitations, start-up, and stopping) for the entire operating range up to the cut-out water flow speed. A permanent-magnet synchronous generator is used in this paper. The system is operated at low rotational speed values, i.e., in the so-called hydrodynamic stall region, where mechanical and hydrodynamic stresses are lower. Given that this region corresponds to an unstable dynamic behavior, the power regulation relies upon an inner loop of rotational-speed stabilization. Consequently, the innermost (electrical machine current) control loop is fed by a reference having two components, namely, the driving and stabilization currents. The embodied control laws and the output power and rotational speed limitation sequences have been experimentally validated on a real-time simulator of CFWT-based generation systems.

Published in:

IEEE Transactions on Industrial Electronics  (Volume:58 ,  Issue: 4 )