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Unformatted text preview: Superimpose the three curves. Only consider speeds through 150 rad/s. (The solution will show a higher speed range) Problem 35 – Hysteresis Current Control Consider the expression for the switching frequency of the hysteresis controller given on page 29 of the lecture notes. Because of losses, it is important that the switching frequency be limited. Find an expression for the worst case switching frequency as the rotor speed is varied. Assume the armature resistance is negligible Problem 36 – Discontinuous Operation Using the development on pages 1921 of the dc drive lecture notes, derive the expressions for b and c on page 22....
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This note was uploaded on 09/22/2011 for the course ECE 321 taught by Professor Staff during the Spring '08 term at Purdue.
 Spring '08
 Staff
 Volt

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