SINGLE-LOOP DIGITAL CONTROLLERS IN HVAC.

Author(s) : SCHWENK D. M.

Summary

SINGLE-LOOP DIGITAL CONTROLLERS TYPICALLY RECEIVE ONE ANALOG INPUT AND PROVIDE ONE ANALOG OUTPUT. MOST ARE FULLY CONFIGURABLE IN THAT THE INPUT SPAN, DISPLAY UNITS, CONTROL MODE (P, PI, PID), CONTROL ACTION, AND TUNING CONSTANTS CAN BE ENTERED BY THE END USER MAKING THEM INTERCHANGEABLE BETWEEN APPLICATIONS. THE PAPER REVIEWS PERFORMANCE FEATURES AND SPECIFICATIONS OF A NUMBER OF THESE CONTROLLERS AND SOME BASIC APPLICATIONS ARE PRESENTED. IN ADDITION, 2 TYPES OF SELF TUNING ALGORITHMS ARE DISCUSSED AND THE METHODS BY WHICH THEY ARE APPLIED.

Details

  • Original title: SINGLE-LOOP DIGITAL CONTROLLERS IN HVAC.
  • Record ID : 1989-2401
  • Languages: English
  • Publication date: 1988
  • Source: Source: ASHRAE Trans.
    vol. 94; n. 2; 1985-1994; 3 fig.; 1 tabl.; 7 ref.
  • Document available for consultation in the library of the IIR headquarters only.