HEATING SYSTEM CONTROL BASED ON REQUIRED HEATING POWER Russian patent published in 2012 - IPC G05D23/19 F24D3/00 

FIELD: physics.

SUBSTANCE: system has a sensor for detecting outdoor temperature, a sensor for detecting return temperature T_return of a heat carrier circulating in a heat distribution system with a flow rate, and a controller. The controller is adapted to determine a required heating power P_req to be delivered by the heat distribution system to maintain a heating power balance according to the equation P_req=P_loss - P_source, where P_loss is an approximation of heating power losses from the building, and includes a dynamic approximation of heating power transfer through walls of the building, based on at least the desired indoor temperature, the detected outdoor temperature, a heat transfer coefficient of the wall, and heat capacity of the wall, and P_source is an approximation of heating power sources external to the heating system, and, based on the detected return temperature, control a combination of forward flow temperature and flow rate so as to ensure that the distribution system delivers the required heating power. According to the present invention, a dynamic model of the heating power balance of the building is used to control the heating power delivered by the heating system.

EFFECT: improved control compared a control scheme based on flow temperature control based on outdoor temperature.

20 cl, 4 dwg