Abstract
Described in this paper is an analysis of the quick-response sampled-data control system and its application to multiple temperature control of industrial furnace. This control system is designed so that it settles for its step response in one sampling for the process of e-Ls/ (1+Tps). The controller consists of a conventional PI controller and sampler. As a result of the analysis, it was found that if suitable parameters are used, the system is able to settle for the response in one or two samplings for step disturbance and in two samplings for step input. These parameters are suitable for practical applications.
Stability margin was calculated for the variation of process gain. The system keeps good stability over the considerably wide range of the gain. Besides, knowledge was obtained concerning the instrumentation by multiple control system, controller characteristics and suitable sampling time.
