One application of feed back control is where the speed of a motor has to be maintained at a certain RPM and the load it drives is variable. Feedback from the load tells the VFD (Variable Frequency Drive) motor controller what to do. As the load drags the motor speed down the feedback unit sends a electrical impulse to the VFD to increases the speed of the motor. As the load drops off the feedback unit sends a electrical impulse to the VFD to decreases the speed of the motor. These interactions keep the motor RPM at a constant speed. This is a very simplified version of what happens.
You are describing a closed-loop control system. This system continuously monitors the output and adjusts the input to maintain the output at the desired level by using feedback from the process.
Disturbance feedback in control systems refer to the mechanisms used to minimize the impact of external disturbances on the system's output. This can involve implementing compensation techniques, filtering, or adaptive control strategies to maintain desired performance despite disturbances. The goal is to improve the system's stability and robustness to external influences.
Feedback in cybernetics refers to the process of a system receiving and responding to information about its output in order to maintain or regulate its behavior. In control systems, feedback is used to monitor and adjust the system's performance by comparing the actual output with the desired reference input. This allows for self-regulation and correction to achieve the desired outcome.
With the feedback system, the transient response refers to how the system reacts to sudden changes or disturbances. A well-designed feedback system can help to minimize transient response by adjusting the system to maintain stability and reduce oscillations. The speed and accuracy of the transient response are important factors in determining the performance of a control system.
positive feedback system
A: feedback is not an application but rather is a must to keep a system or amplifier stable in the linear regions
When there is no feedback to control its output.
A: It is any system where there is negative feedback to control its behavior
open loop
The three basic components of every feedback control system are: the sensor (or detector) which measures the system's output, the controller which processes this information and generates a control signal, and the actuator (or final control element) which takes the control signal and adjusts the system's input to achieve the desired output.
1.feedback in control system improves the speed of response2.using feedback in control system we can reduce the sensitivity of the system to parameter variation
some feedback r insulting or inappropriate. it depend on how u sort the question. Question is on feed back system in control system. In a control system generally there is a setpoint to be achieved. Control system aims to achieve the setpoint. However due to inherent reasons, the actual keeps hovering around the setpoint. A good control system keeps the setpoint very close to the setpoint. Control system must know the actual value to make adjustment to achieve the setpoint. Actual value is fed back to the control system. This feed back is referred as negative or positive feedback. The feed back tells the control system that the actual value is lower or higher compared to set point. This is known as negative or positive feedback.
Encoder is usually used to measure the speed of a motor or a conveyor and provide feedback to the control system. In this case, the encoder reads the speed of the elevator and gives feedback to its control system
You are describing a closed-loop control system. This system continuously monitors the output and adjusts the input to maintain the output at the desired level by using feedback from the process.
A: By definition there is no control on a system in an open loop situation. simply . it has no feedback
Feedback control is the process by which a system's output is monitored and used to adjust the system's input. This mechanism allows the body to regulate internal conditions within a narrow range, maintaining homeostasis. Negative feedback is a common type of control system where the system responds in a way that reduces the discrepancy between the desired and actual output.
Feedforward is a preparatory control. EX. Smelling food leads to salivation and production of stomach acid in preparation of food. OR Starting to exercise increases heart rate and breathing rate in preparation of running low on oxygen for muscles. Feedback is a control mechanism where the product of the end mechanism either enhances or inhibits the start of the mechanism Positive feedback enhances Negative feedback inhibits