Method for improved utilization of energy grids
AssigneeEmg Energimontagegruppen AB
InventorPer Rosén
Life of this patent
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Abstract
A local heating system is presented. The local heating system comprising: a first heat source (10) connectable to a heating grid (110) and arranged to extract heat from the heating grid (110); a second heat source (20) connectable to an electrical energy grid (120) and to transform electricity feed through the electrical energy grid (120) into heat; a heat emitting device (30); a distribution system (40) for circulating heat transfer fluid between the heat emitting device (30) and the first and second heat sources (10, 20); and a controller (50) configured to control the first and second heat source's (10, 20) relative outtake of heat from the heating grid (110) and the electrical energy grid (120), respectively.
Claims16
A method for controlling a primary local heating system comprising a first heat source connected to a heating grid, a second heat source connected to an electrical energy grid, one or more heat emitting devices for providing comfort heating, and a distribution system for circulating heat transfer fluid between said one or more heat emitting devices and the first and second heat sources, the method comprising:
- determining a temporally resolved heating control parameter (TRHCP), the TRHCP indicating a temporally resolved overall heating consumption need of a plurality of local heating systems in relation to a temporally resolved overall available heating capacity of the heating grid,
- wherein the plurality of local heating systems are connected to the heating grid,
- determining a temporally resolved electric power control parameter (TREPC), the TREPC indicating a temporally resolved overall electric power need in relation to a temporally resolved overall available electric power of the electrical energy grid to which the second heat source is connected,
- comparing the TRHCP to the TREPC to generate a comparison result;
- and
- based on the comparison result, controlling an outtake of heat from the first heat source (heat outake1) and an outtake of heat from the second heat source (heat outake2) to minimize a performance parameter (P),
- wherein P=(the TRHCP× the heat outake1)+(the TREPC× the heat outake2).
A local heating system, comprising:
- a first heat source connectable to a heating grid and arranged to extract heat from the heating grid;
- a second heat source connectable to an electrical energy grid and to transform electricity feed through the electrical energy grid into heat;
- a heat emitting device;
- a distribution system for circulating heat transfer fluid between the heat emitting device and the first and second heat sources;
- and
- a controller configured to
- determine a temporally resolved heating control parameter (TRHCP), the TRHCP indicating a temporally resolved overall heating consumption need of a plurality of local heating systems in relation to a temporally resolved overall available heating capacity of the heating grid,
- wherein the plurality of local heating systems are connected to the heating grid,
- determine a temporally resolved electric power control parameter (TREPC), the TREPC indicating a temporally resolved overall electric power need in relation to a temporally resolved overall available electric power of the electrical energy grid to which the second heat source is connected,
- compare the TRHCP to the TREPC to generate a comparison result;
- and
- based on the comparison result, control an outtake of heat from the first heat source (heat outake1) and an outtake of heat from the second heat source (heat outake2) to minimize a performance parameter (P),
- wherein P=(the TRHCP× the heat outake1)+(the TREPC× the heat outake2).
A controller configured to control a relative outtake of heat from a first heat source connected to a heating grid and a second heat source connected to an electrical energy grid, the first and second heat sources belonging to a local heating system;
- wherein the controller is configured to
- determine a temporally resolved heating control parameter (TRHCP), the TRHCP indicating a temporally resolved overall heating consumption need of a plurality of local heating systems in relation to a temporally resolved overall available heating capacity of the heating grid,
- wherein the plurality of local heating systems are connected to the heating grid,
- determine a temporally resolved electric power control parameter (TREPC), the TREPC indicating a temporally resolved overall electric power need in relation to a temporally resolved overall available electric power of the electrical energy grid to which the second heat source is connected,
- compare the TRHCP to the TREPC to generate a comparison result;
- and
- based on the comparison result, control an outtake of heat from the first heat source (heat outake1) and an outtake of heat from the second heat source (heat outake2) to minimize a performance parameter (P),
- wherein P=(the TRHCP× the heat outake1)+(the TREPC× the heat outake2).
Dependencies are inferred from the claim text.