TY - JOUR A2 - Cao, Jinde AU - Elaiw, A. M. AU - Xia, X. AU - Shehata, A. M. PY - 2013 DA - 2013/11/13 TI - Combined Heat and Power Dynamic Economic Dispatch with Emission Limitations Using Hybrid DE-SQP Method SP - 120849 VL - 2013 AB - Combined heat and power dynamic economic emission dispatch (CHPDEED) problem isa complicated nonlinear constrained multiobjective optimization problem with nonconvexcharacteristics. CHPDEED determines the optimal heat and power schedule of committedgenerating units by minimizing both fuel cost and emission simultaneously under ramp rateconstraints and other constraints. This paper proposes hybrid differential evolution (DE) andsequential quadratic programming (SQP) to solve the CHPDEED problem with nonsmooth andnonconvex cost function due to valve point effects. DE is used as a global optimizer, and SQPis used as a fine tuning to determine the optimal solution at the final. The proposed hybridDE-SQP method has been tested and compared to demonstrate its effectiveness. SN - 1085-3375 UR - https://doi.org/10.1155/2013/120849 DO - 10.1155/2013/120849 JF - Abstract and Applied Analysis PB - Hindawi Publishing Corporation KW - ER -