Fault current reduction using inverter controlled energy storage for shipboard MVAC power system

We have shown that an electronically controlled Energy Storage System (ESS), co-located with the main power source in a ship MVAC power system, can be used to absorb part of the fault current so that protective equipment can operate at reduced stress thus prolonging their life and increasing the reliability of the devices. Analysis and simulation results show that the method effectively reduces fault current in a multi-generator power system, but may not be feasible for a shipboard system due to the constraints imposed by cost effectiveness, size, availability of required hardware and energy storage capacity.