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1. 发明授权

US11874014B2 Method and controller for controlling a reversible heat pump assembly 有权
公开(公告)号：US11874014B2
公开(公告)日：2024-01-16
申请号：US17255105
申请日：2019-06-19
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Fredrik Rosenqvist , Bengt Lindoff
IPC分类号： F24F11/67 , F24D10/00
CPC分类号： F24F11/67 , F24D10/003 , F24D2200/12 , F24D2220/0271
摘要： A controller configured to selectively set a reversible heat pump assembly (100) in either a heating mode or in a cooling mode is presented. The controller comprising a control circuit (44) configured to: for a time period, determine, using a demand determining function (50), a heating demand for heat from one or more local heating circuits (140) connected to the reversible heat pump assembly (100) and a cooling demand for cold from one or more local cooling circuits (140) connected to the reversible heat pump assembly (100); generate, using a control function (52), a control signal indicative of if the reversible heat pump assembly (100) is to be set in either the heating mode or in the cooling mode, wherein the control function is configured to use the heating demand and the cooling demand as input data; and send, using a transmission function (54), the control signal to a heat pump (110) of the reversible heat pump assembly (100). Also a method for controlling the reversible heat pump assembly (100) is presented.

2. 发明申请

US20230045781A9 DISTRIBUTION PUMP ARRANGEMENT FOR A HYDRAULIC DISTRIBUTION SYSTEM HAVING CHANGING FLOWING DIRECTION 有权
公开(公告)号：US20230045781A9
公开(公告)日：2023-02-09
申请号：US17309589
申请日：2019-12-09
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Fredrik Rosenqvist , Bengt Lindoff
IPC分类号： F24D19/10 , G05D16/20 , F24D3/02
摘要： The present invention relates to a distribution pump arrangement for a bi-directional hydraulic distribution grid (10). The distribution pump arrangement comprising: a hot conduit control valve (20) in a hot conduit (12); a first distribution pump (22) having an inlet (22a) connected to the hot conduit (12) at a first side (20a) of the hot conduit control valve, and an outlet (22b) connected to the hot conduit (12) at a second side (20b), opposite the first side (20a), of the hot conduit control valve (20); a pressure difference determining device (80, 80′) arranged beyond the second side of the hot conduit control valve (20) and configured to determine a local pressure difference, Δp, between a local pressure, phot, of heat transfer liquid in the hot conduit (12) and a local pressure, pcold, of heat transfer liquid in the cold conduit (14); and a controller (90) configured to: while Δp phot, set the distribution pump arrangement in a hot conduit pumping mode, wherein: the hot conduit control valve (20) is set to be closed, and the first distribution pump (22) is set to be active, thereby reduce the local pressure difference.

3. 发明申请

US20220381449A1 METHOD AND CONTROL UNIT FOR CONTROLLING A CONTROL VALVE CONTROLLING A FLOW OF HEAT TRANSFER FLUID INTO A THERMAL ENERGY EXTRACTION UNIT 有权
公开(公告)号：US20220381449A1
公开(公告)日：2022-12-01
申请号：US17755743
申请日：2020-10-27
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Fredrik Rosenqvist , Bengt Lindoff , Helen Carlstrom
IPC分类号： F24D19/10 , F24D10/00
摘要： Disclosed is a method for controlling a control valve (110), wherein the control valve (110) is configured to control a flow of heat transfer fluid to a thermal energy extraction unit (108). The method comprising: reviewing (S402) a demand signal for the control valve (110); checking (S404) if the demand signal is indicative of setting the control valve (110) in a hysteresis interval for the control valve (110); and upon the demand signal is indicative of setting the control valve (110) in the hysteresis interval, alternatingly (S406) setting the control valve (110) in an open state above the hysteresis interval and setting the control valve (110) in a closed state.

4. 发明申请

US20220214070A1 METHOD AND DEVICE FOR CONTROLLING INDOOR CLIMATE IN A PORTION OF A BUILDING 有权
公开(公告)号：US20220214070A1
公开(公告)日：2022-07-07
申请号：US17595041
申请日：2020-04-17
申请人： E.ON SVERIGE AB
发明人： Bengt Lindoff , Per Rosén , Jacob Skogström , Fredrik Rosenqvist , Helen Carlström
IPC分类号： F24F11/65 , F24F11/58 , F24F11/74 , F24F11/80
摘要： A method for controlling indoor climate in a portion (102) of a building (100) is presented. The method comprises: identifying (S402), based on a wireless communication based positioning function, electronic devices (204a, 204b, 204c) present in the portion (102) of the building (100); for each identified electronic device, determining whether the identified electronic device is associated with a user; determining (S406) an estimated total amount of heat dissipation present in the portion (102) of the building (100) based on an amount of heat dissipation associated with the respective user to which the respective identified electronic device is associated; and controlling (S408) indoor climate in the portion (102) of the building (100) based on the estimated total amount of heat dissipation present in the portion (102) of the building (100). Also, a server (106) and a system for performing the controlling are presented.

5. 发明授权

US12007060B2 Method for filling a trench comprising a pair of conduits and such a filled trench 有权
公开(公告)号：US12007060B2
公开(公告)日：2024-06-11
申请号：US17309553
申请日：2019-12-03
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Bengt Lindoff , Fredrik Rosenqvist
IPC分类号： F16L59/15 , F16L1/028
CPC分类号： F16L59/15 , F16L1/028
摘要： A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of the second type (4b) has a second thermal conduction coefficient, the second thermal conduction coefficient being different from the first thermal conduction coefficient.

6. 发明授权

US11629863B2 District energy distribution system and method of providing mechanical work and heating heat transfer fluid of a district thermal energy circuit 有权
公开(公告)号：US11629863B2
公开(公告)日：2023-04-18
申请号：US16608202
申请日：2018-04-26
申请人： E.ON Sverige AB
发明人： Per Rosén , Fredrik Rosenqvist
IPC分类号： F24D10/00 , F01K9/00 , F24D19/10 , F24D18/00 , F24T10/20 , F24D103/13 , F24D101/10
摘要： A district energy distributing system comprising a geothermal power plant comprising a first and a second circuit. The first circuit comprises a feed conduit for an incoming flow of geothermally heated water from a geothermal heat source; a boiler comprising a heat exchanger configured to exchange heat from the incoming flow of geothermally heated water to superheat a working medium of a second circuit of the geothermal power plant; and a return conduit for a return flow of cooled water from the boiler to the geothermal heat source. The second circuit comprises the boiler configured to superheat the working medium of the second circuit; an expander configured to allow the superheated working medium to expand and to transform the expansion to mechanical work; and a condenser configured to transform the expanded working medium to liquid phase and to heat a heat transfer fluid of a district thermal energy circuit.

7. 发明申请

US20220349589A1 A METHOD AND AN APPARATUS FOR DETERMINING A DEVIATION IN A THERMAL ENERGY CIRCUIT 有权
公开(公告)号：US20220349589A1
公开(公告)日：2022-11-03
申请号：US17310652
申请日：2020-02-20
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Fredrik Rosenqvist , Bengt Lindoff
IPC分类号： F24D10/00 , F24D19/10
摘要： A method for identifying a deviation in a thermal energy circuit is presented. The method comprising: receiving (302) a first hot fluid flow measurement (f1) from a first hot fluid flow sensor (208) arranged in a hot fluid conduit (102); receiving (304) a first cold fluid flow measurement (r1) from a first cold fluid flow sensor (204) arranged in a cold fluid conduit (104); receiving (306) a second hot fluid flow measurement (f2) from a second hot fluid flow sensor (210) arranged in the hot fluid conduit (102) upstream the first hot fluid flow meter (208); receiving (308) a second cold fluid flow measurement (r2) from a second cold fluid flow sensor (206) arranged in the cold fluid conduit (104) downstream the first cold fluid flow sensor (204); receiving (310) a thermal device flow measurement (g) from a thermal device flow sensor (202) configured to measure a thermal device flow of a thermal device (106a) connected to the hot fluid conduit (102) downstream the first hot fluid flow sensor (208) and upstream the second hot fluid flow sensor (210), and to the cold fluid conduit (104) upstream the first cold fluid flow sensor (204) and downstream the second cold fluid flow sensor (206). The method further comprising upon (312) the first hot fluid flow measurement (f1) is different from the second hot fluid flow measurement (f2) and the thermal device flow measurement (g) in combination, generating (314) a first deviation signal indicating a deviation in the hot fluid conduit (102), or upon (316) the first cold fluid flow measurement (r1) is different from the second cold fluid flow measurement (r2) and the thermal device flow measurement (g) in combination, generating (318) a second deviation signal indicating a deviation in the cold fluid conduit (104).

8. 发明申请

US20220018488A1 METHOD FOR FILLING A TRENCH COMPRISING A PAIR OF CONDUITS AND SUCH A FILLED TRENCH 有权
公开(公告)号：US20220018488A1
公开(公告)日：2022-01-20
申请号：US17309553
申请日：2019-12-03
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogström , Bengt Lindoff , Fredrik Rosenqvist
IPC分类号： F16L59/15 , F16L1/028
摘要： A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of the second type (4b) has a second thermal conduction coefficient, the second thermal conduction coefficient being different from the first thermal conduction coefficient.

9. 发明授权

US12044425B2 Thermal energy distribution system and control method thereof 有权
公开(公告)号：US12044425B2
公开(公告)日：2024-07-23
申请号：US17250984
申请日：2019-10-02
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogstrom , Fredrik Rosenqvist
IPC分类号： G05B13/02 , F24F11/65
CPC分类号： F24F11/65 , G05B13/026
摘要： The disclosure relates to a method for controlling a thermal energy distribution system, the method comprising: —determining forecast data pertaining to expected overall outtake of heat and/or cooling over time from a distribution grid by local distribution systems connected to the distribution grid, and to expected production capacity of heat and/or cooling in one or more production plants, —determining, at a control server, a time resolved control signal, the control signal being based on forecast data and being associated with at least one local control unit, —sending the control signal from the control server to the associated local control unit, —receiving the control signal at the associated local control unit, —regulating over time, in response to the control signal, the outtake of heat and/or cooling of the local distribution system from the distribution grid. The thermal energy distribution system is also claimed.

10. 发明授权

US11927930B2 Controlling heat outtake from a heat distribution system 有权
公开(公告)号：US11927930B2
公开(公告)日：2024-03-12
申请号：US17250906
申请日：2019-09-13
申请人： E.ON SVERIGE AB
发明人： Per Rosén , Jacob Skogstrom , Fredrik Rosenqvist
IPC分类号： F24D10/00 , F24D19/10 , G05B19/042 , G05D23/19
CPC分类号： G05B19/042 , F24D10/003 , F24D19/10 , G05D23/1904 , F24D2200/13 , G05B2219/2614
摘要： The disclosure relates to a method for controlling a heat distribution system. The method comprises: determining a time period of forecasted elevated overall outtake of heat from a district thermal energy distribution grid (110) by local heat distribution systems (150) connected to the district thermal energy distribution grid (110); determining, at a control sewer (130), a control signal associated with a respective one of a plurality of local control units (140), wherein each respective control signal is time resolved and comprises information pertaining to a temporary increase in heat outtake from the district thermal energy distribution grid (110) before the determined time period, and information pertaining to a temporary decrease in heat outtake from the district thermal energy distribution grid (110) during the determined time period; sending each respective control signal from the control sewer (130) to the respective local control unit (140); receiving the respective control signal at the respective local control unit (140); and regulating, at each respective local control unit (140) and based on the respective control signal, the outtake of heat by the respective local heat distribution system (150) from the district thermal energy distribution grid (110).

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