In view of the large lag and nonlinearity of the flash tank pressure process the hydrocracking and other industrial links

a strategy based on the artificial bee colony（ABC）improved by beetle antennae search（BAS）algorithm to optimize PID parameters is proposed to control the pressure of the flash tank.In order to avoid the randomness of the search and improve the convergence speed and search precision of the conventional ABC algorithm

the ABC algorithm is improved by simulating the search and detection behavior of the beetle to determine the evolution direction of the solution.Based on the research of ABC improved by BAS

a BABC-PID controller is designed to control the flash tank model.Simulation results and experimental data show that the optimization ability of the algorithm is stronger than the traditional intelligent algorithm

and the adjustment time and stability of the BABC-PID pressure controller are significantly improved.