A new approach for modeling and optimizing load shedding ‎and generation reallocation in emergency condition of ‎power system

  • Adel Azar Tarbiat modares uni.
  • Mahmoud Haghifam Tarbiat modares uni.
  • Nima Alibabaei Tarbiat Modares University
Keywords: Nonlinear programming, Mathematical optimization, Simulation, Power system stability, Load Shedding (LS), ‎Generation Reallocation (GR).‎

Abstract

The vast extent of electrical distribution systems and therefore the rapid increase in complexity of them have caused that power systems have become more talented to fall into unacceptable operation conditions. Hence, Load Shedding and Generation Reallocation (LSGR) are some of the most important tools which are used not only for returning these systems back to normal conditions but also for controlling and alleviating the unstable power systems. This paper presents a methodology which can be used to optimize the amount of LSGR. This approach is based on the Nonlinear Programming (NLP) as one of the strongest mathematical methods which is usually used in large scale power systems.

In this case, two software are used. One is based on nonlinear optimization procedure and the other one is a load-flow program base. Furthermore, for improving the LSGR efficiency, an algorithm is also presented to avoid the use of load shedding in light emergency circumstances. In order to examine the validity of the purposed procedures, a numerical simulation is carried out on a typical test system. The acquired results enhanced that our technique could relieve emergency conditions in power system with minimum changes in network parameters in comparison with other traditional ways.

Author Biographies

Adel Azar, Tarbiat modares uni.
management
Mahmoud Haghifam, Tarbiat modares uni.
school of engineering
Nima Alibabaei, Tarbiat Modares University
management - operating research
Published
2012-12-24
Section
Articles