Advanced SearchSearch Tips
An Adaptive Undervoltage Load Shedding Against Voltage Collapse Based Power Transfer Stability Index
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An Adaptive Undervoltage Load Shedding Against Voltage Collapse Based Power Transfer Stability Index
Nizam, Muhammad; Mohamed, Azah; Hussain, Aini;
  PDF(new window)
This paper highlights the comparison of a proposed methods named adaptive undervoltage load shedding based PTSI techniques for undervoltage load shedding and two previous methods named Fixed Shed Fixed Delay (FSFD) and Variable Shed Variable Delay (VSVD) for avoiding voltage collapse. There are three main area considerations in load shedding schemes as the amount of load to be shed, the timing of load shedding event, and the location where load shed is to be shed. The proposed method, named as adaptive UVLS based PTSI seem to be most appropriate among the uncoordinated schemes. From the simulation result can be shown the Adaptive UVLS based PTSI give faster response, accurate and very sensitive control for the UVLS control technique. This technique is effectively when calculating the amount to be shed. Therefore, it is possible to bring the voltage to the threshold value in one step. Thus, the adaptive load shedding can effectively reduce the computational time for control strategy.
Adaptive load shedding;UVLS;Voltage collapse;
 Cited by
Moors C., Lefebvre D., Van Custem T., 2001, Load Shedding Controllers against Voltage Instability : A Comparison of Design, IEEE porto Power Tech Conference, 10-13 September 2001

Klaric M., Kuzle I., Tesnjak S., 2004, Undervoltage Load Shedding Using Global Voltage Collapse Index, Power System Conference and Expo,Vol. (1) pp. 453-459

Balanathan R., Pahalawaththa NC., Annakkage UD, 1999, Undervoltage Load Shedding for Induction Motor Dominan Loads Considering P, Q Coupling, IEE Proceedings Generator, Transmission, Distribution Vol. 146, No. 4, July 1999

Lefebvre D., Bernard S.,Van Custem T., 2004, Undervoltage Load Shedding Scheme for Hydro-Quebec System, Power Engineering Society General Meeting, 6-10 January 2004, Vol. 4, pp. 13-17

Rashek MR, 2004, On Composite Load Modeling for Voltage Stability and Under Voltage Load Shedding, Power Engineering Society General Meeting, 6 10 June 2004, pp. 1156-1161

Ladhani SS., Rosehart W., 2004, Undervoltage Load Shedding for Voltage Stability : Overview of Concepts and Principles, Power Engineering Society General Meeting, 6-10 June 2004, Vol. (1), pp. 1597-1602

Imai S., 2005, Undervoltage Load Shedding Improving Security as reasonable measure for Extreme Contingencies, Power Engineering Society General Meeting, 12-16 June 2005, Vol. (2), pp. 1156-1161

Gajick Z., Karlsson D., Andrieu C., Carlsson P., Ullah NR., 2005, Deliverable 1.5 : Intelligent Load Shedding, Critical Infrastructures for Sustainable Power

Nizam M., Mohamed A., Hussain A., 2006, Performance Evaluation of Voltage Stability Indices for Dynamic Voltage Collapse Prediction, Journal of Applied Science 6 (5) : 1104-1113 crossref(new window)

Hasani M and Parniani M., 2005, Method of Combined Static and Dynamic Analysis of Voltage collapse in Voltage Stability Assessment, IEEE/PES Transmission and Distribution Conference and Exhibition, China

Kundur P., 1994, Power System Stability and Control, McGraw-Hills, Inc., New York

Milano F., Power System Analysis Toolbox Documentation For PSAT version 2.0.0.,, (2006)

Silva A.S., Lerm A.A.P., Irving M., 2004, A Basic Study of Voltage Instability with Inclusion of Limiters, IEEE/PES Transmission and distribution conference and Exposition, (2004), pp. 548-553

Pai M.A., 1989, Energy Function Analysis for Power System Stability, Kluwer Academic Publisher, Norwell, M.A., pp. 222-227