What is the best field that i can make a research on it on the Power Electrical Engineering field , renewable engineering field or artificial intelligence field?
And which software is the best to do the researches ?
Dear Zenab, i don't know which country you came from this is because, you have to see what is around you first before taking research decision. Renewable energy is referred to as clean energy hence a lot of research has been done on it. You can benchmark and get data. If you want to consider it, then try Data Envelopment Analysis (DEA) which is a non-parametric linear programming method using MaxDEA software to run the data.I am using the same methodology for Power distribution (PhD) so, if you need clarification, you can contact me.
Renewable energy is getting a lot of attention recently which could benefit the earth as a whole. however, at this point this research is mostly focused on material science and experimental data. If you are looking into more simulation/coding based research go for artificial intelligence. You can even start with simple C, C#, or java codes.