A new optimal PID control method for superheated steam temperature system

In order to design H2/H^∞ PID controller, this paper proposed a novel niche quantum genetic algorithm that was based on chaotic mutation operator. The simulation results show that, it can obtain better effect when adopting this optimization algorithm to solve constrained optimization problems. The simulation of the super steam temperature control also demonstrates this method´s validity, and meanwhile, this algorithm still performs well in model mismatch circumstances, and it´s useful in engineering.