Parameter Estimation of Heavy Oil Thermal Cracking Model Using an Improved Particle Swarm Algorithm

The traditional particle swarm optimization(PSO) algorithm easily runs into local optimi-(zation) point when it is used to solve complex optimi-(zation) problems.An improved particle swarm optimization(EPSO) algorithm is proposed by introducing Hooke-Jeeves pattern search method and heuristic across method to the basic PSO algorithm.The simulation results show EPSO algorithm has greater efficiency and better performance.The EPSO method is applied successfully to nonlinear parameter estimation of heavy oil t...