CAO Shouqi, GE Zhaorui, ZHANG Zheng. Design of dissolved oxygen control system based on improved particle swarm optimization algorithm[J]. 2020, (6): 113-115.
CAO Shouqi, GE Zhaorui, ZHANG Zheng. Design of dissolved oxygen control system based on improved particle swarm optimization algorithm[J]. 2020, (6): 113-115. DOI: 10.13873/J.1000-9787(2020)06-0113-03.
Aiming at the problem that control of dissolved oxygen in circulating water culture system is greatly delayed and there are much interference
dissolved oxygen control system is established by dissolved oxygen sensor and oxygen booster using STM32 L micro-controller unit( MCU) main control chip. The mathematical model for dissolved oxygen regulation in culture pond is established according to the fuzzy proportional-integral-differential( PID) control system
and the particle swarm optimization( PSO) algorithm is introduced to correct the fuzzy parameters. The original algorithm is improved in order to avoid the early maturity of the particle swarm fall into the local optimum. The effectiveness of this method is verified by MATLAB simulation and experiment.Experimental results show that fuzzy PID control with traditional PSO
compared with the PID control
the dissolved oxygen control system with improved PSO algorithm has faster response speed and less overshoot