Abstract:
One of the major challenges faced in the design of DC shipboard power systems (SPS) is the provision of effective DC protection. The selection of the current sensors plays an important role in the detection of fault current in DC systems. The Rogowski coil has emerged as a popular choice of current sensor for use in DC SPS protection system primarily because of its fast response and non-saturable property. This paper presents the modelling and operation of the Rogowski coil and its integration into protection algorithms to achieve effective protection. With this method, the transient conditions experienced during faults can be effectively identified and differentiated.
