Dc link scherbius drive - motor control , Electrical Engineering

Assignment Help:

DC Link Scherbius Drive

This type of scheme is shown in figure. This circuit  allows both  sub synchronous  and super synchronous speed control. In case  of sub synchronous speed control  slip  power is  removed form the rotor circuit  and is feedback  into the  ac supply whereas n case of super synchronous  speed  control  the additional power  is fed into the  circuit at slip  frequency.

In this  drive  two controlled  converter bridge bridges are used  in which  bridge has firing angle  less than 900 and bridge 2  has firing  has firing angle more than 900 when sub synchronous  speed  control  is required. In  this case  bridge I works as a rectifier bridge 2 works an inverter. When bridge I has  firing angle more than 900 and  bridge 2 angle  less then 900 super synchronous speed control  is obtained and bridge 1 works as an  inverter and  bridge 2 works  as a rectifier.


Related Discussions:- Dc link scherbius drive - motor control

Why 8085 processor is called an 8 bit processor, 8085 processor has 8 bit A...

8085 processor has 8 bit ALU (Arithmetic Logic Review). Likewise 8086 processor has 16 bit ALU.

Calculate the unknown thermal conductivity, Derive the mathematical 3-D hea...

Derive the mathematical 3-D heat conduction equation in Spherical Coordinates? A furnace is made up of three layers of thicknesses 250 mm, 150 mm nad 100 mm with thermal conduct

Which impurity is added in n-type-semiconductor, In n type semi conductor a...

In n type semi conductor added impurity is (A) Pentavalent.                                (B) Divalent. (C) Tetravalent.                                 (D) Trivalent.

Determine the resonant frequency and bandwidth, (a) For a series RLC resona...

(a) For a series RLC resonant circuit, find an expression for the voltage across the resistance VR and obtain the ratio V R /V S , where V S is the applied voltage. Identify the e

Thunderstrom detector, Ask question #how to construct thunderstrom detector...

Ask question #how to construct thunderstrom detector with circuit breaker.

Electric machinery fundamentals, Ask qu1. If the resistor Radj is adjusted ...

Ask qu1. If the resistor Radj is adjusted to 175O what is the rotational speed of the motor at no-load conditions? 2. Assuming no armature reaction, what is the speed of the motor

D.c mootor, which principle is used in d.c motor

which principle is used in d.c motor

Discuss dma operation in brief, Discuss DMA operation in brief. The fun...

Discuss DMA operation in brief. The fundamental idea of DMA is to transfer blocks of data directly among memory and peripherals. The data don't suffer the microprocessor but th

Write a brief note on mmx technology, Write a brief note on MMX technology....

Write a brief note on MMX technology. MMX (Multimedia extensions) technology adds 57 new types of instructions to the Pentium - 4 microprocessors instruction set. The MMX tech

Name the flag available in status register of 8086, What are the different ...

What are the different flag available in status register of 8086? There are Six flags are present. They are, AF - Auxiliary Carry Flag CF - Carry Flag OF - Ove

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd