Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea

     

A METHOD OF SYSTEM IDENTIFICATION AND ITS APPLICATION IN HVAC SYSTEMS

D. Hou, Y. Pan, Z. Huang

Abstract: The operation effect of industrial process is largely determined by the automatic control system. In the conventional control process, the Proportional Integral and Derivative (PID) parameters need to be set according to the engineering experience. Not only is the control precision not enough, but also the robustness is poor. The performance of PID control based on the system transfer function is relatively good. However, it is usually limited by the accuracy of transfer functions. In this paper, a method based on PSO is studied for the identification of Heating, Ventilating and Air Conditioning (HVAC) system. By simplification the transfer function as a second order plus dead time model, using Particle Swarm Optimization (PSO) algorithm optimizes the parameters of the model to obtain the minimum differentiation between the outputs of the system and the model. Two examples are given to show this method is simple and results are accurate.
Keywords: System identification, PSO, Transfer function, Second-order plus dead-time model
Paper:
asim2016_341