The operating study of circulating water system based on Particle Swarm Optimization

Circulating cooling water system of large heavy industry had the problem that many pumps of regulating speed operate in higher energy consumption and lower efficiency. The paper analyzed the characteristic of variable speed water pump around the problem. The mathematics model was established with the optimization goal of the lowest energy consumption, which was on the basis of Particle Swarm Optimization and frequency speed control technology, and it simplified inequality constraint condition. It avoided the difficulty of the premature convergence of genetic algorithm through using PSO and improves the global search ability of the algorithm. Simulation results show that it is an effective algorithm to solving optimal problem of many pumps of speed-frequency control in water circulating system.