DISTRIBUTION TRANSFORMER MATHEMATICAL MODEL FOR POWER LOSSES MINIMIZATION

In this paper, the significance of minimizing power losses is presented, which is an essential part of each distribution transformer. It is given a description of the mathematical model of the distribution transformer which enables us to obtain information that gives a clear idea of the energy losses in the distribution transformer. A comparison was made with respect to the original transformer, from which energy efficiency improvement can be clearly seen. In this paper the optimized mathematical model for improved energy efficiency design of distribution transformer is presented. The fundamentals of the optimization and calculation are input values, diagrams and parameters obtained from project design catalogue and laboratory test protocol from the manufacturer. This new and unique mathematical model is developed using equation describing the relation between all transformer parameters. For the purpose of best optimization approach, the direct global iterative algorithm technique is used. Based on this method, expressed mathematical model for loss minimization and mathematical equations presented in this paper, the optimal solution is achieved. The new prototype distribution transformer is designed and manufactured. The laboratory test proved the enhanced energy efficiency.