KR20230065850A - Integrated energy controlling system and method thereof - Google Patents

Abstract

An integrated energy control system and a method thereof according to an embodiment are disclosed. The integrated energy control system comprises: a terminal device which collects actual power generation data, which measures the amount of power produced by a solar power generation system installed in a building, and energy consumption data, which measures the amount of energy consumed by the building; an integrated server which generates an optimal driving scenario based on the collected actual power generation data and energy consumption data; and a driving device which operates the integrated energy system based on the optimal driving scenario and collects status information of the integrated energy system. According to the embodiment, renewable energy from solar heat sources, water heat sources, and geothermal sources can be used efficiently and at low cost.

Description

Integrated energy control system and its method {INTEGRATED ENERGY CONTROLLING SYSTEM AND METHOD THEREOF}

Embodiments relate to an integrated energy control system and method.

Entering modern society, electricity has become an indispensable and indispensable element. In particular, as the modern society becomes more advanced, power consumption has increased even more, and the energy system including the power system, which is a basic industry, has become complex and gigantic.

The energy industry is targeting a shift in the energy mix from energy supply to encompassing the power mix. The reason for this is to stably supply safe and clean energy while aiming to build a coexistence-type ecosystem through active citizen participation and profit sharing.

Therefore, an energy control system that allows integrated operation of the energy system is required.

Embodiments provide an integrated energy control system and method.

The problem to be solved in the embodiment is not limited thereto, and it will be said that the solution to the problem described below or the purpose or effect that can be grasped from the embodiment is also included.

An integrated energy control system according to an embodiment includes a terminal device for collecting power generation measurement data obtained by measuring the amount of power generated by a photovoltaic power generation system installed in a building and energy consumption data obtained by measuring energy consumption used in the building; an integrated server for generating an optimal driving scenario based on the collected data on the amount of power generation and the amount of energy consumption; and a driving device that operates the integrated energy system based on the optimal driving scenario and collects state information of the integrated energy system.

The integrated server predicts the amount of power generation using a predetermined prediction algorithm based on the collected actual measurement data of power generation and energy consumption data to generate power generation prediction data, and sends the generated power generation prediction data and power generation actual measurement data to the driving device. can transmit

The driving device may operate the integrated energy system according to a pre-stored driving scenario based on the transmitted prediction data and actual measurement data of generation amount, and may collect driving state data of the integrated energy system.

The integration server may generate an optimal driving scenario using an optimal driving algorithm based on the collected driving state data and the energy consumption data, and transmit the generated optimal driving scenario to the driving device.

The integrated energy system includes a solar power generation system generating power from a solar heat source; an energy storage device that stores some of the power generated from the solar thermal power generation system; A first heat storage tank for storing heat using a water heat source; A second heat storage tank for storing heat using a geothermal source; a first heat pump controlling the temperature of the heat stored in the first heat storage tank; and a second heat pump for adjusting the temperature of the heat stored in the second heat storage tank.

The first and second heat pumps may be driven with a portion of power generated from the solar thermal power generation system.

The integrated energy control method according to the embodiment includes the steps of collecting, by a terminal device, power generation data obtained by measuring the amount of power generated by a photovoltaic power generation system installed in a building and energy consumption data obtained by measuring the amount of energy consumed in the building; generating, by an integrated server, an optimal driving scenario based on the collected data on the amount of power generation and the amount of energy consumption; and driving the integrated energy system based on the optimal driving scenario and extracting state information of the integrated energy system by a driving device.

In the generating step, the generated generation prediction data is generated by predicting the generation amount using a predetermined prediction algorithm based on the collected actual measurement data of the generation amount and the energy consumption data, and the generated generation prediction data and the actual measurement data of the generation amount are used in the driving device can be sent to

In the extracting step, the integrated energy system may be operated according to a pre-stored driving scenario based on the transmitted predicted data and the actual measurement data of generation amount, and driving state data of the integrated energy system may be collected.

In the generating step, an optimal driving scenario may be generated using an optimal driving algorithm based on the collected driving state data and the energy consumption data, and the generated optimal driving scenario may be transmitted to the driving device.

According to the embodiment, renewable energy from solar heat sources, water heat sources, and geothermal sources can be used efficiently and at low cost.

According to the embodiment, since an optimal driving scenario is generated based on information on the operating state of the integrated energy system, the integrated energy system can be operated in an optimal state.

Various advantageous advantages and effects of the present invention are not limited to the above description, and will be more easily understood in the process of describing specific embodiments of the present invention.

1 is a diagram showing an integrated energy control system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a basic configuration of the integrated energy system shown in FIG. 1 .
FIG. 3 is a view showing in detail some configurations of the energy system shown in FIG. 2 .
4 to 5 are diagrams for explaining the principle of controlling a heat storage source in a cooling/heating heat storage tank.
6 is a diagram illustrating an integrated energy control method according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

However, the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in a variety of different forms, and if it is within the scope of the technical idea of the present invention, one or more of the components among the embodiments can be selectively implemented. can be used by combining and substituting.

In addition, terms (including technical and scientific terms) used in the embodiments of the present invention, unless explicitly specifically defined and described, can be generally understood by those of ordinary skill in the art to which the present invention belongs. It can be interpreted as meaning, and commonly used terms, such as terms defined in a dictionary, can be interpreted in consideration of contextual meanings of related technologies.

Also, terms used in the embodiments of the present invention are for describing the embodiments and are not intended to limit the present invention.

In this specification, the singular form may also include the plural form unless otherwise specified in the phrase, and when described as “at least one (or more than one) of A and (and) B and C”, A, B, and C are combined. may include one or more of all possible combinations.

Also, terms such as first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention.

These terms are only used to distinguish the component from other components, and the term is not limited to the nature, order, or order of the corresponding component.

In addition, when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected to, combined with, or connected to the other component, but also with the component. It may also include the case of being 'connected', 'combined', or 'connected' due to another component between the other components.

In addition, when it is described as being formed or disposed on “above (above) or below (below)” of each component, “upper (above)” or “lower (below)” is not only a case where two components are in direct contact with each other, but also one A case in which another component above is formed or disposed between two components is also included. In addition, when expressed as “up (up) or down (down)”, it may include the meaning of not only the upward direction but also the downward direction based on one component.

1 is a diagram showing an integrated energy control system according to an embodiment of the present invention.

Referring to FIG. 1, the integrated energy control system according to an embodiment of the present invention includes a building integrated photovoltaic (BIPV) system 100, a terminal device 300, an integrated server 400, and a driving device 500. , may include an integrated energy system 600.

The photovoltaic power generation system 100 may convert sunlight intensity, which is input energy, into current and output the converted current. The photovoltaic power generation system 100 may include a photovoltaic array 110 and a photovoltaic inverter 120 . The photovoltaic array 110 may convert sunlight intensity, which is input energy, into DC current and output the converted direct current. The solar inverter 120 may convert the direct current output from the photovoltaic array 110 into alternating current and output the converted current.

The terminal device 300 may be disposed in a building to collect power generation measurement data obtained by measuring the amount of power generated by the photovoltaic power generation system 100 installed in the building and energy consumption data obtained by measuring the amount of energy consumed in the building. . Here, the amount of energy consumption may be the amount of consumption used for power, cooling, heating, and hot water supply.

The terminal device 300 may be, for example, a block chain-based RTU (Remote Terminal Unit), but is not necessarily limited thereto and may be various types of terminals.

The integration server 400 receives the actually measured data on the amount of power generation and the amount of energy consumption data collected from the plurality of terminal devices 300, and predicts the amount of power generation using a predetermined prediction algorithm based thereon, thereby generating predicted amount of power generation data.

The integration server 400 provides generated power generation prediction data and power generation actual measurement data to the driving device, and from the driving device, the state of charge (SoC) of the energy storage device, the operating state of the heat pump, heat energy production, etc. Driving status data can be provided.

The integrated server 400 may generate an optimal driving scenario by using an optimal driving algorithm based on the received driving state data and previously stored energy consumption data.

The integration server 400 may provide the generated optimal driving scenario to the driving device 500 .

When the driving device 500 receives power generation prediction data and power generation actual measurement data from the integrated server 400, it operates the integrated energy system 600 for cooling and heating, and charges due to the operation of the integrated energy system 600. Driving state data such as state, driving state, and production volume may be collected and provided to the integration server 400 .

When the driving device 500 receives an optimal driving scenario from the integrated server 400, it can operate the integrated energy system 600 using a driving algorithm based on the optimal driving scenario.

The integrated energy system 600 can generate cold and warm heat using renewable energy such as a solar heat source, a geothermal heat source, and a water heat source, and operate cooling and heating operations with the generated cold and warm heat.

FIG. 2 is a diagram showing a basic configuration of the integrated energy system shown in FIG. 1 .

Referring to FIG. 2 , an integrated energy system 600 according to an embodiment of the present invention includes a photovoltaic power generation system 100, an energy storage system (ESS) 610, and a first heat pump (GSHP, 620). ), a second heat pump (WSHP, 630), a first heat storage tank (TES1, 640), and a second heat storage tank (TES2, 650).

The photovoltaic power generation system 100 may convert sunlight intensity, which is input energy, into electric power and output the converted power. The power produced through the solar power generation system 100 is preferentially supplied to the smart village, and the surplus power remaining after supplying the smart village is stored in the energy storage device 610 or the first heat pump 620 and the second heat may be supplied to the pump 630.

The energy storage device 610 may store power generated through the solar power generation system 100 .

The first heat pump 620 may be a geothermal heat pump using a geothermal source.

The second heat pump 630 may be a hydrothermal heat pump using a water heat source.

The first heat storage tank 640 may store heat produced through the photovoltaic power generation system 100 as well as cold heat and heat produced through the first heat pump 620 and the second heat pump 630 .

The second heat storage tank 650 may store heat produced through the photovoltaic power generation system 100 as well as heat produced through the first heat pump 620 and the second heat pump 630 .

FIG. 3 is a view showing in detail some configurations of the energy system shown in FIG. 2 .

Referring to FIG. 3 , the energy system according to an embodiment of the present invention may include a first heat pump (GSHP), a second heat pump (WSHP), a first heat storage tank (TES1), and a second heat storage tank (TES2). .

The first heat pump GSHP may be a geothermal heat pump using a geothermal heat source.

The second heat pump WSHP may be a hydrothermal heat pump using a water heat source. In this case, the heat source-side pipe may be configured so that the second heat pump WSHP can be operated using a geothermal source.

The first heat pump GSHP and the second heat pump WSHP may include two heat pumps connected in series, and a secondary heat medium may circulate through the two heat pumps connected in series.

The first heat pump GSHP and the second heat pump WSHP may be turned on/off according to supply and production temperatures, and may be turned on/off at TM3, TM4, TM5, TL3, and TL4 temperatures.

The first heat storage tank TES1 stores cold heat and hot heat generated through the first heat pump GSHP and the second heat pump WSHP, and the stored cold heat and hot heat may be supplied to a load side through a heat exchanger.

The second heat storage tank TES2 stores hot heat generated through the first heat pump GSHP for domestic hot water among the first heat pumps GSHP, and the stored heat may be supplied to the load side through the heat exchanger.

Entrances and exits of the first heat storage tank TES1 and the second heat storage tank TES2 may be changed depending on whether or not there is hot or cold water.

The cooling water supplied to the load side may be supplied in two areas through HX-cool 19-1 and 37-1, but may be supplied to a plurality of areas without necessarily being limited thereto.

Hot water for domestic hot water/heating supplied to the load side can be divided into two areas and supplied through HX-heat 19-2 and 37-2, but it is not necessarily limited thereto and can be supplied to multiple areas.

During the cooling period, cold water for cooling may be supplied from the first heat storage tank TES1, and hot water for hot water supply may be supplied from the second heat storage tank TES2.

During the heating period, hot water is first supplied from the second heat storage tank TES2, and when insufficient, hot water may be supplied from the first heat storage tank TES1.

CP19-1 and CP19-2 are operated 24 hours a day, and the A/B pump is operated alternately every day, and as the level increases, it is operated in A+B.

CP37-1 and CP37-2 are operated 24 hours a day, the inverter is connected only to pump A among A/B/C, and pump B/C is operated alternately every day. When the load of A pump is high, B or C pump is operated.

At this time, the heat storage in which internal heat or thermal energy is stored may be operated in the first mode and the second mode.

In the first mode, heat is stored in the heat storage tank by using cheap electricity during the night time, and the heat storage tank is first stored in the heat storage tank during the night time and operated during the daytime if insufficient. During daytime operation, it is operated during light load times or during times when BIPV generation is high.

The second mode is a method of accumulating heat through a heat pump by utilizing surplus power of BIPV and PV during the day, and is operated at night when insufficient. After predicting the amount of BIPV power generation, community power consumption, and ESS charging amount, the final surplus power is calculated, and the amount of surplus power that can be used for heat pump storage is calculated, and the insufficient amount of heat storage is stored late at night. When calculating heat storage capacity of the heat pump with surplus power during the daytime, the number of heat pumps may be controlled in units of, for example, 30RT, 50RT, 60RT, 80RT, 90RT, 140RT, and 190RT.

4 to 5 are diagrams for explaining the principle of controlling a heat storage source in a cooling/heating heat storage tank.

Referring to FIG. 4 , when receiving a heat storage signal from the integrated server, the energy system may store heat in the first heat storage tank TES1 by operating the heat pumps WSHP and GSHP, the pump WSP, and the heat source pump.

During cooling operation, when the heat pumps (WSHP, GSHP) and pumps (WSP1 to WSP6) are turned on to produce cold heat, MVC-P1 is PID-controlled to maintain the set temperature Tcctes (< 4.5℃) for the TM9 temperature.

At this time, when all of the pumps WSP1 to WSP6 are stopped in operation, they may be stopped at the initial opening rate.

During heating operation, when the heat pumps (WSHP, GSHP) and pumps (WSP1 to WSP6) are turned on to produce heat, MVC-P1 is PID-controlled to maintain the set temperature Thctes (> 55℃) at the TM9 temperature.

At this time, when all of the pumps WSP1 to WSP6 are stopped in operation, they may be stopped at the initial opening rate.

Heat pumps (WSHP, GSHP) can be divided into hydrothermal heat pumps (WSHP) and geothermal heat pumps (GSHP). When operating the hydrothermal heat pump (WSHP) and the geothermal heat pump (GSHP), the geothermal heat pump may be operated first, but is not necessarily limited thereto, and the priority may be determined in advance.

For example, when 30RT operation is requested, the geothermal heat pump (GSHP19-1) is operated first, and when 60RT operation is requested, the geothermal heat pump (GSHP19-1, GSHP37-1) is operated simultaneously or the geothermal heat pump (GSHP37-1) and hydrothermal heat are operated simultaneously. Simultaneous operation of pump (WSHP37-1), simultaneous operation of geothermal heat pump (GSHP19-1, GSHP37-1) and hydrothermal heat pump (WSHP37-1) when 90RT operation is requested, and hydrothermal heat pump (WSHP37) when 100RT operation is requested -2, WSHP19-1), operate geothermal heat pumps (GSHP19-1, GSHP37-1) and hydrothermal heat pumps (WSHP37-1, WSHP37-2) simultaneously when 140RT operation is requested, and all simultaneously when 190RT operation is requested. can drive

In addition, when the energy system receives a heat storage signal from the integrated server, the pump (WSP) is operated in connection with each heat pump (WSHP, GSHP). When the heat pumps WSHP and GSHP connected to the pump WSP are stopped in manual mode or the like, the associated pump WSP is also stopped.

1 minute before sending an operation signal to the heat pumps (WSHP, GSHP), the associated pumps (WSP) are operated first. After sending a stop signal to the heat pumps (WSHP, GSHP), the stop of the heat pumps (WSHP, GSHP) is confirmed, and the associated pump (WSP) is also stopped 1 minute later. Here, 1 minute is only an example for explaining the time delay, but is not necessarily limited thereto and may be changed as needed.

For example, when the operation signal of the heat pump (GSHP19-1) is operated, the pump (WSP5/6) is also operated in conjunction, and when the operation signal of the heat pump (GSHP37-1, WSHP37-1) is operated, the pump (WSP3/4) is also operated in conjunction, and the heat pump (WSHP37-2, WSHP19-1) The pump (WSP1/2) is also operated in conjunction with the operation signal.

In addition, the pumps (MV-HP1 to MV-HP4) are basically manually operated, but are not limited thereto. The pumps MV-HP1 and MV-HP3 are always open, and the pumps MV-HP2 and MV-HP4 are always closed.

However, if each heat pump is operated independently by adding a pump to the pump reserve side instead of operating in series, the pumps (MV-HP1, MV-HP3) are closed and the pumps (MV-HP2, MV-HP4) are open. .

Also, during the cooling operation, when the load-side inlet temperature of each heat pump reaches the set temperature Thpcli (7° C.), the corresponding heat pump is stopped. At this time, the heat pump (GSHP19-1, WSHP37-1, WSHP37-2) is determined based on TM3, the heat pump (GSHP37-1) is determined based on TM5, and the heat pump (WSHP19-1) is determined based on TM4.

In heating mode, when the load-side inlet temperature of each heat pump reaches the set temperature Thpcli (52°C), the corresponding heat pump is stopped. At this time, the heat pump (GSHP19-1, WSHP37-1, WSHP37-2) is determined based on TM3, the heat pump (GSHP37-1) is determined based on TM5, and the heat pump (WSHP19-1) is determined based on TM4.

Referring to FIG. 5 , when receiving a heat storage signal from the integrated server, the energy system may store heat in the second heat storage tank TES2 by operating the heat pump GSHP, the pump WSP, and the heat source pump.

6 is a diagram illustrating an integrated energy control method according to an embodiment of the present invention.

Referring to FIG. 6 , the terminal device 300 is disposed in a building and collects power generation measurement data obtained by measuring the amount of power generated by the photovoltaic power generation system installed in the building and energy consumption data obtained by measuring the amount of energy consumed in the building. can do.

Next, the terminal device 300 may transmit the collected power generation data and energy consumption data to the integration server 400 .

Next, the integrated server 400 receives the actual measurement data of the amount of power generation and the amount of energy consumption data collected from the plurality of terminal devices 300, predicts the amount of power generation using a predetermined prediction algorithm based on this, and generates predicted amount of power generation data. can

Next, the integration server 400 may transmit the generated power generation prediction data and power generation actual measurement data to the driving device 500 .

Next, the driving device 500 receives power generation prediction data and power generation actual measurement data from the integrated server 400, and based on this, the integrated energy system 600 is operated for cooling and heating according to pre-stored driving scenarios, charging state, Operation status data such as operation status and production volume can be collected.

In this case, the driving device 500 may operate the integrated energy system 600 and adjust the driving state of the integrated energy system 600 by comparing predicted power generation amount with actual measurement data of the power generation amount at this time.

Next, the driving device 500 may transmit the collected driving state information to the integrated server 400 .

Next, the integration server 400 may generate an optimal driving scenario by using an optimal driving algorithm based on the provided driving state data and previously stored energy consumption data.

Next, the integrated server 400 may transmit the generated optimal driving scenario to the driving device 400 .

Next, the driving device 500 may receive an optimal driving scenario from the integration server 400 and operate the integrated energy system based on the received optimal driving scenario.

The term '~unit' used in this embodiment means software or a hardware component such as a field-programmable gate array (FPGA) or ASIC, and '~unit' performs certain roles. However, '~ part' is not limited to software or hardware. '~bu' may be configured to be in an addressable storage medium and may be configured to reproduce one or more processors. Therefore, as an example, '~unit' refers to components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, and procedures. , subroutines, segments of program code, drivers, firmware, microcode, circuitry, data, databases, data structures, tables, arrays, and variables. Functions provided within components and '~units' may be combined into smaller numbers of components and '~units' or further separated into additional components and '~units'. In addition, components and '~units' may be implemented to play one or more CPUs in a device or a secure multimedia card.

Although the above has been described with reference to preferred embodiments of the present invention, those skilled in the art will variously modify and change the present invention within the scope not departing from the spirit and scope of the present invention described in the claims below. You will understand that it can be done.

100: solar power system
200: terminal device
300: integration server
400: driving device
500: integrated energy system

Claims (10)

A terminal device that collects power generation data measured by measuring the amount of power generated by the photovoltaic power generation system installed in the building and energy consumption data by measuring energy consumption used in the building;
an integrated server for generating an optimal driving scenario based on the collected data on the amount of power generation and the amount of energy consumption; and
An integrated energy control system comprising a driving device that operates the integrated energy system based on the optimal driving scenario and collects state information of the integrated energy system. According to claim 1,
The integrated server,
Based on the collected actual measurement data of power generation and energy consumption data, generating power generation prediction data by predicting power generation using a predetermined prediction algorithm;
An integrated energy control system for transmitting the generated power generation prediction data and power generation actual measurement data to the driving device. According to claim 2,
The driving device,
Operating the integrated energy system according to a pre-stored driving scenario based on the transmitted prediction data and actual measurement data of power generation;
An integrated energy control system that collects driving state data of the integrated energy system. According to claim 2,
The integrated server,
An optimal driving scenario is created using an optimal driving algorithm based on the collected driving state data and the energy consumption data;
An integrated energy control system that transmits the generated optimal driving scenario to the driving device. According to claim 1,
The integrated energy system,
A solar power generation system that produces power from a solar source;
an energy storage device that stores some of the power generated from the solar power generation system;
A first heat storage tank for storing heat using a water heat source;
A second heat storage tank for storing heat using a geothermal source;
a first heat pump controlling the temperature of the heat stored in the first heat storage tank; and
And a second heat pump for adjusting the temperature of the heat stored in the second heat storage tank, the integrated energy control system. According to claim 5,
The first and second heat pumps,
An integrated energy control system driven by a portion of the power generated from the solar power generation system. Collecting, by a terminal device, power generation data obtained by measuring power generation generated by a photovoltaic power generation system installed in a building and energy consumption data obtained by measuring energy consumption used in the building;
generating, by an integrated server, an optimal driving scenario based on the collected data on the amount of power generation and the amount of energy consumption; and
An integrated energy control method comprising driving an integrated energy system based on the optimal driving scenario and extracting state information of the integrated energy system by a driving device. According to claim 7,
In the generating step,
Based on the collected actual measurement data of power generation and energy consumption data, generating power generation prediction data by predicting power generation using a predetermined prediction algorithm;
An integrated energy control method for transmitting the generated power generation prediction data and power generation actual measurement data to the driving device. According to claim 8,
In the extraction step,
Operating the integrated energy system according to a pre-stored driving scenario based on the transmitted prediction data and actual measurement data of power generation;
An integrated energy control method for collecting driving state data of the integrated energy system. According to claim 8,
In the generating step,
An optimal driving scenario is created using an optimal driving algorithm based on the collected driving state data and the energy consumption data;
The integrated energy control method of transmitting the generated optimal driving scenario to the driving device.

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