Answer Posted / sandeep vazhoor
VVVF drives are generally classified into three types based
on the type of control philosophy adopted for motor control :
Ø Scalar control/PWM control
Ø Sensor-less vector control
Ø Vector control (with sensor) or Flux vector control
For flux vector control pulse encoder (or PG) will be
mounted on motor shaft as a feedback element.
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Define cut-off rate?
WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING
What are m circles?
What type of wiring series or parallel is used for conventional and addressable type FAS & why?
how to calculate kvar in Akiva
Pls explan the OLR setting in VCB at HT yard
Pls mail me utility & Dg related question with answer
what is the concept of directional power?
Explain what are inter-poles and why they are required in a dc machine.
what is the function of capacitor duty contactor in an capacitor panel???
What are the different types of controllers?
What is inverse definite minimum time lag relay? Where is it use?
Differentiate between voltage and current feedback in amplifiers?
what is the best transformer oil breakdown voltage?
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?