Weigh feeder using steady state input. (2nd September 2011)

• Record Type: Journal Article
• Authors: Sato, T.
• Is Part Of: International journal of computer applications technology. Volume 41:Number 1/2(2011)
• Page Start: 125
• Page End: 131
• Publication Date: 2011-09-02
• Subjects: weigh feeders -- steady state input -- ramp-type reference input -- proportional gain -- self-tuning control -- weigh feeder control -- controller design; Technology -- Data processing -- Periodicals; 620.00285
• Languages: English
• ISSNs: 0952-8091

Abstract

The present paper proposes a new method for designing a weigh feeder control system. The model of a weigh feeder cannot be obtained accurately because its dynamic characteristics are time varying and its high frequency vibration modes are not easily identified. In the present paper, a weigh feeder is approximated as a first-order plus integrator system, and a self-tuning controller is designed on the basis of the approximated model to estimate its gain recursively. The purpose of this study is to design a controller to be actually employed in industry. To this end, a controller is assumed to consist of proportional gain for control error and steady state control input. As a result, the proposed controller has a simple structure and its controller parameters can be understood intuitively. Consequently, the proposed design method can be easily adopted in industry. Numerical and experimental results demonstrate its effectiveness.