Compensation of Harmonic Currents Utilizing AHC
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
computer science crazy
Super Moderator
******

Posts: 3,048
Joined: Dec 2008
#1
07-04-2009, 11:19 PM


Today, the situation on low-voltage AC systems has become a serious concern.The quality of electrical power in commercial and industrial installations is undeniably decreasing. In addition to external disturbances, such as outages, sags and spikes due to switching and atmospheric phenomena, there are inherent, internal causes specific to each site and resulting from the combined use of linear and non-linear loads.Untimely tripping of protection devices, harmonic overloads, high levels of voltage and current distortion, temperature rise in conductors and generators all contribute to reducing the quality and the reliability of a low-voltage AC system. The loads which consume non-sinusoidal currents are called as non-linear load.This type of load is used for the conversion, variation and regulation of electrical power in commercial, industrial and residential installations.Acurrate signal conditioning plays an important role in voltage signals.Proper signal conditioning converts the high power signals to meet the requirements of the low voltage control circuits.Increase in non-linearity causes different undesirable features like low power factor and low efficiency. Active harmonic conditioners are proving to be viable option for controlling harmonic distortion levels in many applications.It has been proved to be effective when the load is non-linear.The effective operation of the active harmonic conditioner is based on the accurate sensing of the source current,source voltage and DC side capacitor voltage of the filter.
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply
tanmay
Active In SP
**

Posts: 10
Joined: Aug 2009
#2
26-08-2009, 08:52 PM

can u please send d whole copy, it can be very helpful for me..
thanks in advance..
Reply
computer science crazy
Super Moderator
******

Posts: 3,048
Joined: Dec 2008
#3
27-08-2009, 01:59 PM


.pdf   Compensation of Harmonic Currents Utilizing AHC.pdf (Size: 61.46 KB / Downloads: 347)

Abstract
In industrial low and medium voltage mains, passive filters and PFC capacitors have traditionally been used to improve the supply quality. However, they cannot be rated only for the loads being compensated. They are affected by harmonic currents from other non-linear loads or by harmonics from the power system [1]. Compared with passive element compensators, an active harmonic compensator (AHC) can be used to improve the supply quality without worrying about all the problems associated with applying passive elements.
read more ieeexplore.ieeexpl/freeabs_all.jsp?arnumber=4424213
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion
Reply
seminar project explorer
Active In SP
**

Posts: 231
Joined: Feb 2011
#4
11-03-2011, 05:23 PM

The active harmonic compensation AHC proposed in this article can be used for the industrial networks and can be uses successfully with the non-linear loads. To improve the supply quality of other loads supplied from the same mains, this can be used and is suitable for the consumers with rapid fluctuations of reactive and active power consumption.

advantages of AHC
The design is independent of line impedance and hence the device can be sized to meet the needs of the application
both the harmonic and reactive currents are controlled actively.

The high cost is the main limiting factor behind the AHCs widespread usage. However some advancements are favouring the AHC such as the mass produced hardware in the active filter which cam be used in the device ans can considerably reduce the cost.

Control system:
The control scheme of the system is based on the cascade control architecture. There is a current control in the inner loop without mains sensors voltage. the output voltage of the voltage source inverters is produced by the current sensors for each of the sampling period.

Get the report here:

.pdf   Active compensation of harmonics in Industrial applications.pdf (Size: 460.82 KB / Downloads: 163)

Reply
seminar addict
Super Moderator
******

Posts: 6,592
Joined: Jul 2011
#5
11-02-2012, 01:49 PM


to get information about the topic compensation of harmonic currents utilising ahc full report ,ppt and related topic refer the link bellow
topicideashow-to-compensation-of-harmonic-currents-utilizing-ahc

seminar and presentationproject and implimentationsattachment.php?aid=10032

topicideashow-to-compensation-of-harmonic-currents-utilizing-ahc--2262?pid=40034#pid40034
Reply

Important Note..!

If you are not satisfied with above reply ,..Please

ASK HERE

So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page

Quick Reply
Message
Type your reply to this message here.


Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  Compensation of harmonic currents utilizing AHC computer science crazy 6 5,285 08-03-2014, 02:50 PM
Last Post: seminar project topic
  Grid Voltage Regulation Utilizing Storage Batteries in PV Solar seminar ideas 7 7,534 10-01-2014, 04:27 PM
Last Post: seminar project topic
  The Hybrid Method for On-line Harmonic Analysis pdf study tips 0 289 02-07-2013, 03:17 PM
Last Post: study tips
  POWER FACTOR CORRECTION AND HARMONIC FILTERING REPORT study tips 0 378 25-06-2013, 12:31 PM
Last Post: study tips
  ACTIVE POWER FILTER FOR HARMONIC SUPPRESSION REPORT study tips 0 380 13-06-2013, 04:21 PM
Last Post: study tips
  Three Phase Transformer Winding Configurations and Differential Relay Compensation study tips 0 526 06-05-2013, 04:53 PM
Last Post: study tips
  Transmission System Reactive Compensation and Stability Enhancement Using 48-pulse study tips 0 388 03-05-2013, 02:15 PM
Last Post: study tips
  Monolithic Thermocouple Amplifiers with Cold Junction Compensation pdf study tips 0 439 27-02-2013, 02:14 PM
Last Post: study tips
  Report on Ocean in Motion: Currents - Coastal Current study tips 0 482 16-02-2013, 02:59 PM
Last Post: study tips
  Single phase Active harmonic filters for Harmonic elimination and Power Factor study tips 0 496 14-02-2013, 04:34 PM
Last Post: study tips