Computerized device and computer-implemented method for controlling a HVAC system
Various embodiments of the teachings herein include a device for controlling a HVAC system of a room. The device may include: a memory storing a metamodel for a distribution of physical quantities of air in the room, the metamodel based on reduced order modeling of a plurality of executed simulations of the physical quantities for a first configuration of the room; and a processor programmed to determine a value of a first subset of the physical quantities at a certain location in the room using the metamodel and a set of measured values of each physical quantity being measured by a number of physical sensors.
1. A device for controlling a HVAC system of a room, the device comprising:
a memory storing a metamodel for a distribution of physical quantities of air in the room, the metamodel based on reduced order modeling of a plurality of executed simulations of the physical quantities for a first configuration of the room;
a processor programmed to determine a value of a first subset of the physical quantities at a certain location in the room using the metamodel and a set of measured values of each physical quantity being measured by a number of physical sensors;
a receiving unit for receiving a request defining a desired temperature at a desired location in the room; and
a controller for generating a control signal for controlling the HVAC system based on the value of one or more of the first subset of the physical quantities determined and the received request;
wherein the metamodel is based on a plurality of parametrical simulations approximated using reduced order modeling into a set of algebraic equations for a set of desired physical quantities;
the set of algebraic equations include a system of linear equations; and
the system of linear equations provide a column vector of the desired physical quantities is equal to a sum of a product of a matrix describing the measured values of the physical quantities and a column vector of metamodel coefficients and a column vector of discrepancy.
2. The device of claim 1 , wherein the first subset of physical quantities include: air temperature, air velocity, relative humidity, absolute humidity, and/or CO 2 -content of air.
3. The device of claim 1 , wherein the metamodel models a 3D distribution of a plurality of physical quantities of the air in the room.
4. The device of any of claim 1 , wherein the plurality of executed simulations includes computer aided engineering (CAE) simulations applied to the certain room configuration.
5. The device of any of claim 1 , wherein the room configuration describes a geometry of the room including an area of the room, a height of the room, windows and doors of the room, a position of the room in the building, a number of persons in the room, locations of persons in the room, objects in the room, and/or locations of objects in the room.
6. The device of claim 1 , wherein the reduced order modeling includes machine learning.
7. The device of claim 1 , wherein the reduced order modeling includes a simulation and/or a number of empirical models.
8. The device of claim 1 , wherein:
the simulations are executed for a plurality of locations in the room; and
each of the simulations is executed based on a set of boundary conditions.
9. The device of claim 1 , wherein the processor is further programmed to determine the value of the certain physical quantity at any location in the room.
10. A HVAC system comprising:
a memory storing a metamodel for a distribution of physical quantities of air in the room, the metamodel based on reduced order modeling of a plurality of executed simulations of the physical quantities for a first configuration of the room; and
a processor programmed to determine a value of a first subset of the physical quantities at a certain location in the room using the metamodel and a set of measured values of each physical quantity being measured by a number of physical sensors;
a receiving unit for receiving a request defining a desired value for at least one property of the air at a desired location in the room;
wherein the processor generates a control signal for controlling the HVAC system based on the value of one or more of the first subset of the physical quantities determined and the received request; and
a fan coil unit controlled by the processor to adjust the at least one property of the air at the desired location in the room;
wherein the metamodel is based on a plurality of parametrical simulations approximated using reduced order modeling into a set of algebraic equations for a set of desired physical quantities;
the set of algebraic equations include a system of linear equations; and
the system of linear equations provide a column vector of the desired physical quantities is equal to a sum of a product of a matrix describing the measured values of the physical quantities and a column vector of metamodel coefficients and a column vector of discrepancy.