“…Therefore, these approaches are not appropriate for solving ORPD. To overcome these limitations, the robust and flexible evolutionary optimization techniques such as, simple genetic algorithms " Iba (1994)", evolutionary strategies " Bhagwan, and Patvardhan (2003)", evolutionary programming "Liang, Chung, Wong and Duan(2006) ", particle swarm optimization " Yoshida, Fukuyama, Kawata, Takayama and Nakanishi (2000)", differential evolution " Liang, Chung, Wong, Duzn, and Tse (2007)", real coded genetic algorithms (RGA) " Subbaraj and Rajnaryanan(2009)", tabu search (TS) " Khalid, Kumar, Mishra & (2014)" simulated annealing (SA) " Dao, Zelinka, & Duy, H. (2012)", teaching learning based optimization (TLBO) " Mukherjee, Paul, & Roy, (2015)", cultural algorithm (CA) "Som., & Chakraborty, (2012)", improved particle swarm optimization (IPSO) "Polprasert, Ongsakul, & Dieu, (2013)", biogeography based optimization (BBO) " Kamboj, & Bath, (2014)" and firefly algorithm (FA) " have been applied. These evolutionary algorithms have shown success in solving the ORPD problems since they do not need the objective and constraints as differentiable and continuous functions.…”