Restoration of Normal Frequency Affected by Small Load Variations Through HVDC Link Using Neuro-Fuzzy Approach
Journal Title: International Journal on Computer Science and Engineering - Year 2011, Vol 3, Issue 3
Abstract
HVDC power transmission is coming up with merits to replace the EHV-AC systems. The controller inverter operation can successfully regulate the power in HVDC link leading to fulfillment of power demand in A.C. networks caused by sudden rise in loading. Since overloading and unloading both lead to the departure of operating frequency below or above normal, its control for normalization is exercised through control of power flow in HVDC Link. Also the same is achieved by adjusting firing delay angle intelligently. This paper aims at providing automation to frequency normalization after it has undergone changes from normal value of 50 Hz, due to sudden and sustained increase in load or due to working of generators at increased loads in H.V.D.C transmission systems. It is planned to automate the restoration of departed frequency to normal value by arranging the change in firing delay angle i.e. α of the converter of H.V.D.C. link, till the increased load demand is met with. An adaptive control system has been devised which controls the firing delay angle on the basis of decisions given by a fuzzy controller. Also the fuzzy controls are decided by the departure in frequency from normal. The results have been found to be encouraging.
Authors and Affiliations
Anil Kumar Sharma , Dr. G. K. Joshi, , Tarun Kumar , Shyam Krishan Joshi
Keywords
Related Articles
- EP ID EP85455
- DOI -
- Views 119
- Downloads 0
Wirelss Security on Security Standard Policy: A Case Studty
Administrators of a network have a variety of different uthentication and encryption technologies to choose from. Administrators must also take into account a variety of organizational factors, not just of technical fac...
Image Retrieval based on combined features of image sub-blocks
In this paper we propose a new and efficient technique to retrieve images based on sum of the values of Local Histogram and GLCM (Gray Level Co-occurrence Matrix) texture of image sub-blocks to enhance the retrieval perf...
Curve Length Estimation using Vertix Chain Code Curve Length Estimation
Most of the applications in image analysis are based on reeman chain code. In this paper, for the first time, vertex chain code (VCC) proposed by Bribiesca is applied to improve length estimation of the 2D digitized cur...
Suggestion of True Popular Items
Making of suggestion of items using user’s feedback creates some problems in the actual ranking of the items. It populates some items while it suppresses some thers. In short, it affects the original popularity of the i...
End to End delay analytical estimation of NoC with VBR traffic
Network On Chip (NoC) integrate real time application that require strength performance guaranties, usually enforced by a tight upper bound on the maximum end-to-end delay. The complex and unpredictable nature of data tr...