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Four-Quadrant Pulse Injection and Sliding-Mode-Observer-Based Sensorless Operation of a Switched Reluctance Machine Over Entire Speed Range Including Zero Speed

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7 Author(s)
Khalil, A. ; Dept. of Electr. & Comput. Eng., Akron Univ., OH ; Underwood, S. ; Husain, I. ; Klode, H.
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The objective of this paper is to present a sensorless position estimation technique for switched reluctance machines operating in dynamic modes over a wide speed range including zero speed. The technique combines two different methods to deliver high-resolution position information over the wide speed range. At zero and low speeds, a voltage pulse injection method is used to estimate the rotor position in all four quadrants. For higher speeds, a sliding-mode-observer-based algorithm is used and combined to work with the low-speed algorithm. Experimental results demonstrate the effectiveness of this new combined technique that has four-quadrant operation capability

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Industry Applications, IEEE Transactions on  (Volume:43 ,  Issue: 3 )