Application of Moody Chart Method in Load Ranking in Power System

The ranking of loads in the Microgrid system plays an important role in handling emergency situations such as power shortage, overload or short circuit. These situations can destabilize the Microgrid system and load shedding solutions must be immediately implemented to keep it stable. In this paper, a method of raking the loads in the Microgrid based on the principle of Moody Chart is presented. This principle is primarily implemented based on the number of votes. The rating of these loads takes the following criteria into account: priority load ratio, maximum power utilization hours and damage costs. The proposed method is applied to the 16-bus Microgrid model and has achieved accurate and reliable results. This ranking result is then used to serve the problem of ranking the load shedding order in the power grid. In addition, this approach can provide utility operators and related professionals with useful information to design and build power systems that meet the complex requirements in terms of operation.