What is it about?
In this paper, an analogy between the vector and direct thrust (torque) control methods for linear induction machines is given and used to justify combining the the two control methods to come up with a unified controller that provides faster dynamics than vector control and smother performance than direct thrust control. End effect is also considered in the modeling and control system design.
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Why is it important?
This paper proposes a Linear Induction Motor control system to achieve very fast machine dynamics with rather smooth operation over a wide operating conditions taking into account end effect. The paper is also aimed at a control system comparable to the conventional Vector or DTC in terms of system complexity including signal measurement requirement and on-line computational burden.
Perspectives
A combined vector and thrust control (CVDC) is proposed for a linear induction motor (LIM) to provide a motor performance faster than the one under VC and smoother than the one under DTC. End effect is taken into consideration by using a dynamic model of the LIM. The LIM performance under the proposed control system is evaluated by simulation and extensive experimental results. A good agreement between the two sets of results confirms the validity of the control system.
Dr Farzad Rajaei Salmasi
University of Tehran
Read the Original
This page is a summary of: Combined Vector and Direct Thrust Control of Linear Induction Motors With End Effect Compensation, IEEE Transactions on Energy Conversion, March 2016, Institute of Electrical & Electronics Engineers (IEEE),
DOI: 10.1109/tec.2015.2479251.
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