Patent ID: 8818563
Filing Date: 2014-08-26
Classification: F24F,G05B,G05D

Abstract:
1. A system with a control arrangement having a hierarchical structure of at least two hierarchical levels for controlling and regulating room temperature in a building, comprising: at least one predictive controller, arranged at an upper hierarchical level of the control arrangement, providing optimum control of use of at least one free energy source or cost effective energy source; and at least one subordinate controller, arranged at a lower hierarchical level subordinate to the upper hierarchical level of the control arrangement, providing feedback regulation of at least one additional energy source in a zone controlled by the at least one subordinate controller to the at least one predictive controller, wherein said at least one predictive controller generates a control signal for said at least one subordinate controller for feedback regulation based on the feedback regulation provided by the subordinate controller, the control signal having information relating to the optimum use of the free energy source or cost effective energy source, and said at least one predictive controller uses a building model and has a regulation strategy that utilizes properties of a passive heat accumulator of the building.