Combination of TOPSIS and AHP in load shedding scheme for large pulp mill electrical system

Abstract

In the era of technology, a variety of powerful equipments are design to satisfy the demand of industry sector. However, these equipments need a stable and reliable electrical supply in order for the whole system to flow smoothly. The overview of this paper is mainly about the load shedding application toward a large pulp mill electrical system using the multi-decision making methods which are the Analytical Hierarchy Process (AHP) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) methods. Whenever there are shortages of electrical supply, the load shedding method shall be applied in order to recover and stabilize the system. Load shedding is a module that shed the higher possible load in the system to overcome the voltage shortage in the system. The objective of this paper is to extract the possible unnecessary load and determine the ranking of the load according to their importance level. The proposed methods are to test on the plant load shedding table from a paper pulp mill industry with 25 load points for practical applications.