DC grid technology has attracted researchers’ attentions in recent years due to its inherent advantages, including but not limited to small power losses in the long-distance transmission, easy integration with asynchronous generation sources and the absence of reactive power component. However, the difficulties of dc fault protection technology impede the wide application of dc system. In order to test the validity of the existing methods and newly proposed methods on dc fault detection, localization and isolation, a hardware 4-bus MTDC system and a RT-LAB platform in OPAL-RT would be established. These technologies would be combined to form the real-time protection towards dc faults in the experiment. The test-bed at Power Systems Lab at Dept of ECSE, UoA would be used to experimentally validate the concept, and extend it further.
· Research on building a hardware 4-bus MTDC system and a RT-LAB platform in OPAL-RT to realize the real-time dc fault detection.
· Research on the dc fault localization method using traveling wave.
· Research on the dc fault isolation method using dual active bridge (DAB) converter.
Lab allocations have not been finalised