US 11,940,193 B2
Responsive power steering and redundancy
Per Rosén, Lund (SE); Jacob Skogström, Lomma (SE); and Fredrik Rosenqvist, Helsingborg (SE)
Assigned to EMG ENERGIMONTAGEGRUPPEN AB, Karlshamn (SE)
Appl. No. 16/958,156
Filed by EMG Energimontagegruppen AB, Karlshamn (SE)
PCT Filed Dec. 20, 2018, PCT No. PCT/EP2018/086073
§ 371(c)(1), (2) Date Jun. 26, 2020,
PCT Pub. No. WO2019/129610, PCT Pub. Date Jul. 4, 2019.
Claims priority of application No. 17210635 (EP), filed on Dec. 27, 2017.
Prior Publication US 2020/0363074 A1, Nov. 19, 2020
Int. Cl. F24D 19/10 (2006.01); F24D 10/00 (2022.01); F25B 49/00 (2006.01)
CPC F25B 49/00 (2013.01) [F24D 10/003 (2013.01); F24D 2200/12 (2013.01); F24D 2220/042 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for controlling a thermal distribution system, the system comprising:
a distribution grid for a fluid based distribution of heat and/or cold,
a production plant for producing heat or cold and for delivering the heat or cold to the distribution grid, and
a plurality of local controllers, each local controller being associated with a local distribution system in a building, the local distribution system being configured to distribute heating or cooling in the building, each local controller further being configured to control the associated local distribution system's outtake of heat or cold from the distribution grid,
wherein the method comprises:
determining a capacity limit of the production plant,
evaluating, at a central server, a current and/or forecasted production of heat or cold in the production plant in relation to the capacity limit of the production plant,
in response to the current and/or forecasted production at the production plant approaching the capacity limit, outputting, from the central server, a respective control signal to one or more of the plurality of local controllers, wherein the respective control signal comprises information pertaining to a temperature offset,
receiving the respective control signal at the respective one or more of the plurality of local controllers, and
in response to receiving the respective control signal at the respective one or more of the plurality of local controllers, determining a respective steering temperature based on a temperature outside and/or inside the respective building and on the respective temperature offset, and controlling, at the respective one or more of the plurality of local controllers, the associated local distribution system's outtake of heat or cold from the distribution grid based on the steering temperature, and thereby reducing the associated local distributions system's outtake of heat or cold from the distribution grid.