Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Temperature control for a hot water heating circulating pump system using a nonlinear sliding surface

비선형 슬라이딩 면을 이용한 온수난방 순환펌프 시스템의 온도 제어

  • Ahn, Byung-Cheon (Department of Building Equipment System Engineering, Kyungwon University) ;
  • Cang, Hyo-Whan (Dept.of Mechanical Engineering, Korea University)
  • Published : 1997.04.01
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Abstract

Digital variable structure controller(DVSC) is implemented to control the temperature for the hot water heating circulating pump control system. For the DVSC, a control algorithm is suggested, which using a nonlinear sliding surface and a PID sliding surface outside and inside of steady state error boundary layer, respectively. Smith predictor algorithm is used for the compensation of long dead time. The DVSC of the suggested algorithm yields improved control performance compared with the one of existing algorithm. The system responses with the suggested DVSC shows good responses without overshoot and steady state error inspite of heating load change. By decreasing sampling time, dead time and rise time are increasing, and system output noise by flow dynamics is amplified.

Keywords

References

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