Design the automatic phase balancing equipment for low voltage distribution network

Abstract

Phase balancing is one of the issues to be considered in the design and operation of low-voltage electricity distribution networks. If the phase imbalance is too large, it will cause the overload, power loss, and even damage transformers and equipment. This paper presents the design method for automatic phase balance equipment for low voltage distribution network in order to reduce the current imbalance between phases. In this case study, the process of automatic phase conversion will not cause blackouts on load. The proposed method deals with the current signals from the transformer to control switching of power electronic equipments for the phase transition. In combination with low-voltage switchgear in order to create phase balance in the networks continuously and stably. Experimental test results showed the effectiveness of the proposed method. It is applicable for installation at the factory or household