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

What do you mean by quartz crystals, Q. What do you mean by Quartz crystals...

Q. What do you mean by Quartz crystals? Synthetic quartz is composed of Silicon and Oxygen (Silicon Dioxide) and is cultured in autoclaves under high pressure and temperature.

What do you mean by continuous signals, Q. What do you mean by Continuous s...

Q. What do you mean by Continuous signals? Continuous signals are described by time functionswhich are defined for all values of t (a continuous variable). Commercial broadcast

Interpret the assembly output of the lc - 3 compilers, Interpret the Assemb...

Interpret the Assembly Output of the LC - 3 Compilers Goals to understand the stack convention of the LC3 compiler: How the stack pointer and frame pointer are managed

Singular value decomposition, Singular Value Decomposition (i) initial...

Singular Value Decomposition (i) initialize a 2x2 matrix m=[4 0.5;0.5 7]  Factorize the matrix with SVD [u d v]=svd(m) How the matrix u and v differ? Why is that?

Explain the working principle of an opto coupler, Q. Explain the working pr...

Q. Explain the working principle of an opto coupler? When it is necessary to block the voltage between one electronic circuit and another, and transfer the signal at the same t

Schottky diodes - types of power diodes , Schottky  diodes The schot...

Schottky  diodes The schottky diodes have very fast recovery time and  low forward drop.  The current  ratings of  these diodes  vary  from 1A to 300 a and  maximum  allowable

Help needed in degree project, i have to design a project title "Edge deter...

i have to design a project title "Edge determining techniques for Low quality images in different lighting conditions and we use matlab for images simulation by changing different

BASIC ELECTRICLE, kindly tell me which text book is usefull forlearn the ba...

kindly tell me which text book is usefull forlearn the basic electricle.

Execute a pspice program to solve for the node voltages, Q. For the circuit...

Q. For the circuit given in Figure, develop and execute a PSpice program to solve for the node voltages.

Sketch the individual phase flux contributions, Q. Consider the balanced th...

Q. Consider the balanced three-phase alternating currents, shown in Figure, to be flowing in phases a, b, and c, respectively, of the two pole stator structure shown in Figure with

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