Transfer Function
Taking Laplace Transform from both sides of Eq. (1.3) and assuming zero initial conditions yield
The right hand side of Eq. (1.25) is called the transfer function. am…, bm… are constants and y( s), x( s) are called the output and input variables. Equation (1.25) can be of any form but normally for real system n > m and n is called the order of transfer function.
The principle of superposition may be used for simple multivariable systems.
Once the transfer function is obtained, the following performance must be studied.
1. Stability
2. Transient response
3. Steady state error for various standard input
4. The above analysis should be carried out for various input functions
5. Frequency response
There are some standard transfer functions that can be solved and exact solution may be obtained. In the following, some standard transfer function is studied.
Related posts:
OBJECTIVE TESTS On Generator characteristic
Electrical Degrees and Time
Wye-Delta Starting:Overload Setting
CONTROL FUNDAMENTALS:STEP CONTROL
Jogging and inching:Inching Controls
Fuel System - How a Carburetor Works
Electric Motor Manual – INSTALLATION METHODS - Nameplate data-for better motor installation an...
summary of Amplifier Applications
Digital Audio Fundamentals:What is an Audio Signal?
Alternators:Short-pitch Winding : Pitch factor/chording factor
CONVENTIONAL D.C. MOTORS:THYRISTOR D.C. DRIVES – GENERAL
SHORT-CIRCUIT PROTECTION
Power and Energy:Measuring Power and Energy
ELECTRIC MOTORS:MAGNETIC CIRCUITS