Optimally designed energy efficient transformer using global iterative algorithms
Mihail Digalovski, Goran Rafajlovski, Krste Najdenkoski
The reduction of total losses for transformers is of great importance both from economic and environmental aspects. In the paper two optimization techniques, Global Search and Pattern Search, to minimize the total power losses of a distribution transformer are applied and evaluated. Object of investigation is an existing oil immersed three-phase transformer 50 kVA, 20/0.4 kV, Yzn5, uk = 4 %, available on the market. By using the output results, a new design of the transformer is developed. After, a prototype transformer, with reduced losses and improved efficiency is built. The computational results are validated through measurements. They show an excellent agreement and present a significant benefit in the total transformer losses reduction.
Cite this article as:
Digalovski M., Rafajlovski G., Najdenkoski K. Optimally designed energy efficient transformer using global iterative algorithms. Journal – Electrotechnica & Electronica (Е+Е), Vol. 50 (5-6), 2015, pp. 8-11, ISSN: 0861-4717 (Print), 2603-5421 (Online)