Research on active disturbance rejection control of the main steam temperature of supercritical thermal power unit based on improved particle swarm optimization

Abstract The stability of the boiler’s main steam temperature is very important for safe operation unit. At present, mainstream PID control scheme simple to use and convenient set, but it cannot accomplish a acceptable ascendancy effect in face structure; with long time delay, large inertia. In view this situation, first all, paper introduces linear active disturbance rejection (LADRC) technology structure. loop adopts controller subloop P-controller. Then, particle swarm optimization algorithm improved used modify parameter LADRC, so that LADRC system adjusted according theory can better complete task. Finally, simulation given, results show track quickly stably; addition, as against traditional strategy, achieve strong anti-interference performance.