SCOPE OF LEARNING: 

• Speed Vs Voltage Characteristics

• Speed Vs Torque Characteristics

• To determine the motor gain constant Km and Torque Constant Kit.

• Study of frequency response using step input

• Study of frequency response using sinusoidal input

• Study of frequency response using Ramp input

• Study of Closed loop second order response of the system using PID controller

• Study of control system components

• Study of Power Amplifier - determination

• Study of Error Amplifier

• Study of controller to measure its gain

• Closed loop performance of the system with P controller

• Effect of disturbance input on open loop and closed loop system with p-controller.

• Study of Closed Loop System with PI-Controller.

• Study of closed loop system with PID Controllers

• Study of disturbance rejection with P and PID controller for various value of gains.

FEATURES:

? One F/V converter provided to convert the pulses to voltage output,

? Speed controller provided to select

# Proportional circuit

# Proportional plus integral circuit

# Proportional + Integral + Derivative circuit

? One 31?2 digit display to display the speed of the DC Series motor / set value

? A Switch provided to select the reference or the actual Speed.

? One 31?2 digit display to display the Armature Voltage or Armature Current, selectable by a Toggle Switch.

? A Separate panel for function generator to produce step, sinusoidal and Ramp waveforms with options for varying frequency, amplitude, offset and Range.

? All Important signals are terminated at sockets so that the student can monitor /

measure the signals using CRO, DVM, Frequency counter etc.

POWER AMPLIFIER:

? PWM based MOSFET Power Amplifier

? One MOSFET as power device

? Rating: 500V @ 8 Amps

? Control circuitry with opto-coupler Isolation.

? One potentiometer provided to control the duty cycle of the chopper

? Provision to feed the control voltage to vary the duty cycle from the Personal computer / Microprocessor / Microcontrollers.

TEST SIGNAL FOR PID PERFORMANCE STUDY

? Provision to feed the control voltage, as External voltage from the personal computer/

? Microprocessor / Microcontrollers.

? XR2206 for producing different waveforms

? One Range selection switch to select from 0.02 Hz to 2 KHz

? Two switches provided to select between Sine, Ramp and step inputs.

? Potentiometers to vary frequency, Amplitude and offset