Refrigerated container parks typical case of electrical systems with structured distributed loads

Abstract

A comprehensive design of an electrical system\ud has to ensure optimal performances in terms of operation,\ud maintenance and safety.\ud The paper discusses the design criteria of electrical systems\ud for refrigerated container parks in port terminals,\ud characterized by a uniform placement of the containers inside\ud the racks' structure. The paper considers, as case study, the\ud terminal container of Kaohsiung, Taiwan. The general design\ud criterion of power systems is to structure the electrical\ud distribution into two or more circuit levels adopting the\ud barycentric approach, promoting modularity when possible,\ud especially for the cases of uniform distributed loads (UDLs).\ud The modularity allows to create mobile and easily deployable\ud solutions that, in conjunction with a re-routable power\ud network can significantly increase the overall availability that\ud represents a crucial requirement considering the service\ud continuity level of the reefers. The adoption of a barycentric\ud distribution increases the overall optimization of the\ud distribution system together with the appropriate voltage\ud levels. This provides higher performances, while at the same\ud time, reducing construction's costs. The authors therefore\ud suggest, for the refrigerated container parks, the adoption of a\ud main MV distribution together with a modular LV\ud distribution, supplied by containerized mobile MV IL V\ud transformer substations located in each rack