4147 — Reduction of Hysteresis in Pi-Controlled Systems

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Motorized dampers and valves generally possess some hysteresis. Hysteresis may result in poor repeatability of experimental data. It also may result in the deviation of a response of a proportional integral (PI) controlled system from its target response and in hunting. In some applications, it may be desirable to reduce the effects of hysteresis. A method to reduce the effects of hysteresis is presented here. This method is based on software, not hardware, modification.

SI

Citation: ASHRAE Transactions, 1998, Vol 104, pt. 1A, San Francisco

Product Details

Published:
1998
Number of Pages:
6
File Size:
1 file , 150 KB
Product Code(s):
D-7812