(5 points for circling just the correct answer. 3 points 1 2 are A PI current co

Question

(5 points for circling just the correct answer. 3 points 1 2 are A PI current control is developed for a de machine based on pole zero cancelation. The following parameters are known: ki 32 (integral gain) R,-0.4 ? (armature resistance) kpwm - 25(converter constant) The closed loop transfer function is given as i) 5 ms (electrical time constant) a) 25-32 32.0.16 i)- iv) 25.32 111)2532 25-32 0.15 2 0.16 s+$+32-0.16 s+ s + 0.4 0.4 0.4 b) What is arma ture inductance? 25.32 0.4 0.4 iv) ii) 25-32.0.4 ii) 5m-04 c) What is the proportional gain? ii) 5m, 32 5m -32 1+5m-32 5m iv) 32-25 1 +25 32

Explanation / Answer

Ans (a) (ii) closed loop transfer function

Ans (b) (iii) armature inductance

Ans (c) (iii) proportional gain

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