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i) Calculate the eigenvalues of a 100 hp, 1150 rpm dc machine at rated flux with no extra load inertia. Use the "hot" value of the armature resistance. Calculate estimates of the resulting speed overshoot and settling time (within 2%) for a step armature voltage input, beginning at an initial current of 0.
ii) Now assume that a closed-loop current regulator is introduced as shown in Fig. 2.7-3 of the book. What are the new eigenvalues of the motor-plus-regulator system if the current regulator gain Ki is set to 10? Ignore the mechanical damping constant (B=0) in Fig. 2.7-3. Calculate estimates of the resulting overshoot and settling time for a step current input, beginning at an initial current of 0.
iii) Now consider a closed-loop speed control system as shown in Fig. 2.7-5. Assume that the current regulator dynamics are very fast compared to the outer speed loop and the current regulator gain is high enough so that it is effectively "ideal". Calculate the eigenvalue of this closed-loop system for Kp=100, τz=∞. (Assume B=D=0 again.) Calculate the resulting output speed overshoot and approximate settling time of the closed-loop system for a step speed command input.
Q. Explain working of three-phase transformers? Transformation in three-phase systems can be accomplished in either of two ways: (1) connecting three identical single-phase tra
For Zero Flag JZ ( Jump on Zero) and JNZ ( jump on no zero ) Instruction JZ transfer the execution of the program to the speciffed address if zero flag is set (Z=
Explain chemical vapour deposition method for the preparation of nanomaterial and its properties
why Vout begins to decrease ...
i av designed my circuit in proteus and written the java graphical code for analysis of the results....i need help on how i can run this circuit in proteus and get the results in t
State and explain three factors upon which the induced electromotive force depends
Merits and Demerits of Collector-to-base bias: Merits: In this type of circuit the circuit stabilizes the operating point against differences in temperature and β (that i
Q. For the circuit shown in Figure, find the phasor values (with peak magnitudes) of ¯I, ¯V R , ¯V L , and ¯V C by using PSpice.
Data rates in PSTNs: A voice channel in a PSTN is band limited with a nominal bandwidth of 3.1 kHz. A first-cut estimate of this can be attained from Nyquist's theorem that app
Immediate Addressing In this addressing mode that 8/16 bit data is specified in the instruction itself as its one of the operands. Normally the instructions using a
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