Two-Position Discontinuous Temperature Control in Electric Space Heating and Cooling Processes II - The Controlled Process

Abstract

A new phase-plane diagram represents the electric space heating-cooling process controlled by a 2-position system. The cycling of the controlled process, under conditions of dynamic equilibrium, is represented in the time domain by the T-T diagram. Both representations are combined to form a new diagramn for the analysis and prediction of controlled-process performance. Expressions are derived for all salient cycling characteristics and figures of merit of the controlled process. The correction of the inherent error due to process transit delay is described. A new method for this correction is shown by circuit and block diagrams.