The information by Nusrat Husain

Improvement of the reliability of national grid supply using AC/DC Hybrid model

Fault classification and location in Bipole HVDC transmission systems with a dedicated metallic return wire is a currently research topic. If you can find EMTP based Bipole VSC-HVDC test case, you can just create different types of faults at different locations such as along the line, bus, inside the converter, AC side, etc, and capture the transient responses. You can just feed the captured snapshots after faults to a ANN based classifier available in Matlab, you can come up with a results which more likely can be published in a reputed electrical in engineering conference. All you need is to find a test case and spend sometime to be familiar with Matlab ANN tool.

Dynamic stability evaluation in the power grid containing HVDC.