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:
TRANSFORMERS:TYPES AND CONSTRUCTION OF TRANSFORMERS
The SCR:The SCR in an AC Circuit
Capacitance and Capacitive Reactance
OPERATING CHARACTERISTICS OF INDUCTION MOTORS:RUN-UP AND STABLE OPERATING REGIONS
Model validation on no-load
Audio Amplifiers:Stage Gain
Multispeed Multiwinding Motor
Wiring Diagrams
Light and associated radiation:Photosensors
Computations and circle diagrams:Starting of Induction Motors
Hall Effect Sensors
Instrumentation techniques:Digital to analogue conversions
GENERATOR INSPECTION AND MAINTENANCE:GENERATOR TESTING
Objective tests on single-phase motors