Research on Fresh Air System Based on Improved Sparrow Search Algorithm Optimized Fuzzy PID Control

The fresh air system utilizes a fan to exhaust the dirty indoor air to the outdoors while sending fresh outdoor air into the room. In order to improve the control effect of fuzzy pid control algorithm, an improved sparrow search algorithm (ISSA) is proposed to optimize the parameters K
e
, K
ec
, K
p
, K
i
and K
d
of fuzzy pid control (ISSA-Fuzzy PID) to control the indoor temperature, humidity, and total volatile organic compounds (TVOC). Simulation results show that the improved sparrow search algorithm optimized fuzzy PID control has small overshoot, short adjustment time, strong adaptive ability, and improves the robustness of the system.