Journal
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Volume 68, Issue 12, Pages 12100-12108Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TIE.2020.3048324
Keywords
Generators; Topology; Power systems; Performance evaluation; Insulated gate bipolar transistors; Prototypes; DC motors; Marine technology; power electronics; protection
Categories
Funding
- Hyundai Electric & Energy Systems Company, Ltd., South Korea
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The use of DC shipboard power distribution networks offers advantages such as reduced system components, simplicity of operation, fuel efficiency, and integration of energy storage systems. Solid-state bus-tie switches are essential for protection in DC shipboard power distribution networks, and can also provide additional functionality. Experimental verification shows that a solid-state bus-tie switch can be used for soft-starting an unenergized section of a shipboard power distribution network, without the need for additional components.
The use of dc shipboard power distribution networks has been shown to offer several advantages over their ac counterparts. The reduction of the size and number of system components, the increased simplicity of operation and fuel efficiency of the system, and convenient integration of energy storage systems offer significant economical benefits to the ship operator. Solid-state bus-tie switches are widely regarded as being an indispensable component in dc shipboard power distribution networks, for their role as first line of defense against faults. Nevertheless, these devices are not limited exclusively to protection, but can provide additional functionality thanks to their design. This article shows how a solid-state bus-tie switch can be employed for soft-starting an unenergized section of a shipboard power distribution network, eliminating the need for additional components aimed specifically at this task. A technique is suggested and its performance is experimentally verified in a laboratory scaled-down model of a dc shipboard network. The additional functionality is achieved exclusively on a control basis, without modification of the switch topology initially intended purely for system protection.
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