Author : Tausif Husain
Publisher :
ISBN 13 :
Total Pages : 137 pages
Book Rating : 4.:/5 (892 download)
Book Synopsis Rotating Reference Frame Control of Switched Reluctance Machines by : Tausif Husain
Download or read book Rotating Reference Frame Control of Switched Reluctance Machines written by Tausif Husain and published by . This book was released on 2013 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: A method to control switched reluctance motors (SRM) in the dq rotating frame is proposed in this thesis. The torque per phase is represented as the product of a sinusoidal inductance related term and a sinusoidal current term in the SRM controller. The SRM controller works with variables similar to those of a synchronous machine (SM) controller in dq reference frame, which allows the torque to be shared smoothly among different phases. The proposed controller provides efficient operation over the entire speed range and eliminates the need for computationally intensive sequencing algorithms. The controller achieves low torque ripple at low speeds and can apply phase advancing using a mechanism similar to the flux weakening of SM to operate at high speeds. A method of adaptive flux weakening for ensured operation over a wide speed range is also proposed. This method is developed for use with dq control of SRM but can also work in other controllers where phase advancing is required. The proposed adaptive control method uses the command and actual currents to adaptively determine the required amount of flux weakening. Through the unique features of dq controls, the proposed method provides an analogous control to synchronous machines for SRM while achieving a lower ripple and efficient and wide speed range of operation depending on the motors application. This has been verified through simulations and experiments.