Find the shaft speed and position response

Assignment Help Electrical Engineering

Reference no: EM132128993

Problem 1:

A two-phase servomotor has rated voltage applied to its excitation winding. The torque speed characteristic of the motor with Vc = 220 V, 60 Hz applied to its control phase winding is shown in Fig.1. The moment of inertia of the motor and the load is 5×10^-5 kg.m² and the resultant motor-load viscous friction coefficient is B = 0.002 N.m x s / rad .

a) Write the torque equation and draw the block diagram of the motor with and without load.

b) Find the shaft speed and position response to the step voltage V_c = 220 V applied to the control phase winding when no load is applied.

c) Find the shaft speed and position response to the step control voltage V_c = 220 V if the load is applied of TL = 0.0003ω²m.

d) Compare results obtained for operating conditions b) and c) and make comments.

Problem 2: In Fig.2 (below) a radar antenna is controlled by the position system with two- phase induction servomotor. Let the transformer selsyn system and the potentiometer transducer give a voltage of 1V per radian of position. The transfer function of the servo amplifier is G(s)= 10(5+0.01571s)/7+s.

Assume that the initial angular position of the radar is zero. The transfer function between the motor control phase voltage Vc and radar position

θ is M(s)= 2.733/s(1+0.01571s)

a) Draw the block diagram of the system

b) For step change in the command angle of 120^o find the time response of the angular position of the antenna.

c) Find step response if transfer function G(s) has changed to:

G(s)= (10(0.8+0.01571s))/(7+s)

d) Compare results obtained for operating conditions b) and c) and make comments.

Attachment:- HW.rar

Reference no: EM132128993

Questions Cloud

Select the non-blank lines from the file file1 : Select the lines from file file1 that have three or less characters in them Select the non-blank lines from the file file1.

How did the artifact first come to your attention : What is it about the artifact that interests you? What is your personal connection to the artifact? What about the artifact connects you to it?

What would happen in a single table of eight entries : Imagine that instructions and data each have a 4 entry cache table. What would happen in the two tables? What would happen in a single table of 8 entries?

How does accessibility impact all users regardless : Which of the remaining three factors associated with semantic HTML is most important to semantic HTML, in your opinion?

Find the shaft speed and position response : EENE6523 - Electric Machine and Drive - Write the torque equation and draw the block diagram of the motor with and without load

Did they cause the you to make the choices you did : Think about your influences on minor choices, such as how to spend the evening, or major choices, such as getting married to a particular person.

What is the best plan with nested loop joins only : Assuming relations have the same size and uniform distributions, what is the best plan with Nested Loop joins only? Write it as an algebra expression.

Which component would provide the best return on : When selecting a new computer, identify the key components that drive the performance of the machine.

Could an agile methodology be used to build a strip mall : Could a traditional process be successfully used to develop a new software program? Why or why not?

User Account

All Pages