TIME DOMAIN SPECIFICATIONS in CONTROL SYSTEM
TIME DOMAIN SPECIFICATIONS in CONTROL SYSTEM
The desired performance characteristics of control systems are specified in terms of time domain specifications.
Systems with energy storage elements cannot respond instantaneously and will exhibit transient responses, whenever they are subjected to inputs or disturbances.
The desired performance characteristics of a system of any order may be specified in terms of the transient response to a unit step input signal.
The transient response of a system to a unit step input depends on the initial conditions.
Therefore to compare the time response of various systems, it is necessary to start with standard initial conditions.
The most practical standard is to start with the systems at rest and so output and all time derivatives before t = 0 will be zero.
The transient response of a practical control system often exhibits damped oscillations before reaching steady state.
The transient response characteristics of a control system to a unit step input is specified in terms of the following time domain specifications.
Delay time (đ_đ
)
Rise time (đ_đ)
Peak time (đ_đ)
Peak overshoot (đ´_đ)
Settling time (đ_đ)
Steady-state error (đ_đđ)
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Very useful mam
Great video