Control system without stability problem

Q.  Which control system does not have a stability problem?
- Published on 15 Sep 15

a. Open loop system
b. Closed loop system
c. Both a. and b.
d. None of the above

ANSWER: Open loop system

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    Discussion

  • Pankaj Chaugule   -Posted on 24 Nov 15
    - The main difference between open loop control system and closed loop control system is that the open loop control system does not have the feedback unit as the closed loop control system has.

    - This is only the disadvantage of open loop control system over closed loop control system.

    - The open loop control system has some advantages also.

    1. The open loop control system does not have any stability problem as there is no any fluctuation in inputs according to output result.

    2. It is simple in construction and maintenance.

    3. It is less expensive and has less number of components than the closed loop control system.

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