Following work examines current and voltage distribution during ground faults in cables of the transformer-less feeder system consisting of interconnected voltage source converters. Analysis is performed with regard to converter block operation, fault-ride-through requirements, cable design and different grounding schemes. Analysis show, that systems with effective grounded generator's neutral in general provide best ground current and voltage distribution across cables.
9781479901159, 9781479901166, 9781479901142
Proceedings of the 15th European Conference on Power Electronics and Applications, Epe 2013, 2013, p. 1-10