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Consider the following statements related to compensators used in control system applications:
1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.
2. Phase lag network is used to increase system stability and maintain velocity gain constant.
3. The capacitance is not used to fabricate a lag network.
1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.
2. Phase lag network is used to increase system stability and maintain velocity gain constant.
3. The capacitance is not used to fabricate a lag network.
Which of these statements is/are correct?
- a)1 and 3 only
- b)1, 2 and 3
- c)1 only
- d)1 and 2 only
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Consider the following statements related to compensators used in cont...
Lag compensator is used to reduce steady-state error, therefore statement-1 is true.
As lag compensator reduces steady state error therefore, statement-2 is false.
Statement-3 is also false because capacitance is used to fabricate a lag network.
As lag compensator reduces steady state error therefore, statement-2 is false.
Statement-3 is also false because capacitance is used to fabricate a lag network.
Most Upvoted Answer
Consider the following statements related to compensators used in cont...
Statement 1: When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.
Explanation:
Lag compensation is used to improve the steady-state characteristics of a control system. When the transient response of a system is satisfactory but the steady-state response is not, lag compensation can be employed to improve the steady-state performance without affecting the transient response.
For example, if a system has a slow response in reaching its steady-state value, adding a lag compensator can increase the steady-state gain and improve the system's performance.
Therefore, statement 1 is true.
Statement 2: Phase lag network is used to increase system stability and maintain velocity gain constant.
Explanation:
A phase lag network, also known as a lead compensator, is used to increase the stability of a control system. It introduces phase lead at a specific frequency, which helps to improve the system's stability margins.
The phase lag network also affects the gain of the system. It can be designed to maintain the velocity gain constant, which means that the overall gain of the system remains unchanged at a specific frequency.
Therefore, statement 2 is false.
Statement 3: The capacitance is not used to fabricate a lag network.
Explanation:
A lag network, also known as a lag compensator, is used to improve the steady-state performance of a control system. It introduces phase lag at a specific frequency, which helps to reduce the steady-state error.
A lag network can be implemented using various components, including resistors, capacitors, and inductors. Capacitance is one of the components that can be used to fabricate a lag network.
Therefore, statement 3 is false.
Conclusion:
From the explanations above, we can conclude that statement 1 is true, statement 2 is false, and statement 3 is false. Therefore, the correct answer is option C) 1 only.
Explanation:
Lag compensation is used to improve the steady-state characteristics of a control system. When the transient response of a system is satisfactory but the steady-state response is not, lag compensation can be employed to improve the steady-state performance without affecting the transient response.
For example, if a system has a slow response in reaching its steady-state value, adding a lag compensator can increase the steady-state gain and improve the system's performance.
Therefore, statement 1 is true.
Statement 2: Phase lag network is used to increase system stability and maintain velocity gain constant.
Explanation:
A phase lag network, also known as a lead compensator, is used to increase the stability of a control system. It introduces phase lead at a specific frequency, which helps to improve the system's stability margins.
The phase lag network also affects the gain of the system. It can be designed to maintain the velocity gain constant, which means that the overall gain of the system remains unchanged at a specific frequency.
Therefore, statement 2 is false.
Statement 3: The capacitance is not used to fabricate a lag network.
Explanation:
A lag network, also known as a lag compensator, is used to improve the steady-state performance of a control system. It introduces phase lag at a specific frequency, which helps to reduce the steady-state error.
A lag network can be implemented using various components, including resistors, capacitors, and inductors. Capacitance is one of the components that can be used to fabricate a lag network.
Therefore, statement 3 is false.
Conclusion:
From the explanations above, we can conclude that statement 1 is true, statement 2 is false, and statement 3 is false. Therefore, the correct answer is option C) 1 only.
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Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer?
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Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer?.
Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements related to compensators used in control system applications:1. When transient response is satisfactory and steady state characteristics are not satisfactory, normally lag compensation is employed.2. Phase lag network is used to increase system stability and maintain velocity gain constant.3. The capacitance is not used to fabricate a lag network.Which of these statements is/are correct?a)1 and 3 onlyb)1, 2 and 3c)1 onlyd)1 and 2 onlyCorrect answer is option 'C'. Can you explain this answer?.
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