KR20140018675A - E-cloud smart community system - Google Patents

Abstract

An E-cloud smart community system comprises at least one generator, measuring unit, central processing unit, and driving control unit. The generator supplies power to multiple power users connected by a network. The measuring unit measures power amounts used for the power users by being connected with each power user. The central processing unit is connected to the measuring unit. The central processing unit comprises an estimating unit which estimates power amounts required for each power user by receiving power amount data measured in the measuring unit; and a storage unit which stores surplus power transferred from the power users through the measuring unit. The driving control unit is connected to the central processing unit and receives the power amount data estimated in the estimating unit and receives the surplus power stored in the storage unit. The driving control unit controls the supply of the surplus power and power produced from the generator so that power is discriminatorily supplied to each power user according to the power amount data which is estimated by being connected with the generator and the power users. [Reference numerals] (250) Fuel supply unit; (300) Measuring unit; (400) Central processing unit; (500) Driving control unit

Description

E-CLOUD SMART COMMUNITY SYSTEM

The present invention relates to an E-cloud smart community system, and more particularly, to a power supply system capable of supplying power to each of a plurality of power users using an E-Cloud Community.

In recent years, power grids for powering each home or, in a larger sense, to power stations such as factories, villages or regions, are analog forms that simply supply power directly by separately installing power supply lines for powering each of them. Increasingly, there is a trend to more intelligently supply power through a digital grid. Accordingly, in the present invention, the power grid in digital form will be referred to as an E-cloud community system.

In order to implement such an E-cloud community system, various technologies such as transmission, substation automation, distribution intelligence, integrated renewable energy management, smart grid operation, energy efficiency, distributed generation and storage are required. Of these, as recent power generation forms change from existing facilities such as thermal power, hydropower or nuclear power to environmentally friendly and regional or building units such as fuel cells or solar cells. The technology of managing the integrated power is considered to be important.

In particular, in the case of a fuel cell can be manufactured to be small enough to be installed and operated in each home, it is important to operate the power generated from each of them efficiently.

However, since power generated from fuel cells installed in each home is not generated according to power consumption of each home, but is collectively generated according to a certain unit capacity for mass production, in some homes, power is insufficient. In addition to using expensive power supplied from the power supply network, in some households, surplus power may be generated and power may be wasted.

An object of the present invention is to provide an E-cloud smart community system that is an intelligent power grid that can efficiently supply power by measuring the power usage of the power users connected to the generator that supplies power.

In order to achieve the above object of the present invention, the E-cloud smart community system according to one feature comprises at least one generator, measuring unit, central processing unit and drive control unit.

The generator supplies power to a plurality of power stations networked with each other. The measuring unit is connected to each of the power stations to measure the amount of power used at each of the power stations. The central processing unit is connected to the measuring unit, and receives power amount data measured from the measuring unit and is transmitted through the measuring unit from the predicting unit and the power using stations to predict the amount of power required at each of the power using stations based thereon. And a storage unit for storing surplus power. The driving control unit is connected to the central processing unit to receive surplus power stored in the storage unit while receiving the power amount data predicted by the prediction unit, and is connected to the generator and the power usage points according to the predicted power amount data. The supply of the surplus power and the power generated from the generator is controlled so that power is differentially supplied to each of the power users.

According to an embodiment, the predicting unit is connected to the measuring unit to collect the measured amount of power data, the accumulating unit and the accumulating unit connected to the collecting unit to calculate and accumulate the collected amount of power data by time. And a logic circuit unit configured to calculate, using a logic circuit, the predicted power amount data required at each of the power users based on the power amount data calculated from the accumulator. In this case, the logic circuit unit may include a first logic circuit unit configured to calculate first predicted power amount data by dividing each of the power users, and a second logic circuit unit configured to calculate second predicted power amount data by time zones of the respective power users. can do.

According to an exemplary embodiment, the measuring unit may include a quality measuring unit measuring a voltage level of power received from the power users.

According to an embodiment, the central processing unit is connected to the quality measuring unit, and compares the voltage level of the measured power with a reference value, the comparing unit, the comparing unit, and the driving control unit. If it is different from the reference value may further include a compensation unit for compensating the voltage level in real time to the reference value and delivers to the power using points under the control of the drive control unit.

According to an embodiment, the generator may include a fuel cell that generates electric power using fuel gas including hydrogen provided from a fuel supply device. Thus, the fuel cell may be a solid oxide fuel cell (SOFC) having an electrolyte made of a ceramic material.

According to an embodiment, a plurality of generators may be individually installed at each of the power users.

According to another embodiment of the present invention, one generator may be connected in parallel with each of the power users.

According to the E-cloud smart community system, the surplus power delivered in part or all is stored while measuring the amount of power supplied from the generator at each of the power stations networked with each other, and then the measurement is performed at each of the power stations. It is possible to efficiently supply the power generated from the generator by predicting the amount of power to be used in the future based on a power amount data, thereby differentially supplying the power generated from the generator and the surplus power to each of the power users.

Particularly, by transmitting the surplus power to a power usage station having a relatively large amount of power used among the power usage stations, not only the surplus power can be prevented from being wasted, but also the power usage station using the power usage is relatively higher than the existing power use. Power is available at low cost.

1 is a block diagram conceptually illustrating an E-cloud smart community system according to an embodiment of the present invention.
FIG. 2 is a block diagram specifically illustrating a central processing unit of the E-cloud smart community system shown in FIG. 1.
FIG. 3 is a block diagram illustrating in detail a logic circuit of the central processor of FIG. 2.
4 is a block diagram conceptually illustrating an E-cloud smart community system according to another embodiment of the present invention.

Hereinafter, an E-cloud smart community system according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing. In the accompanying drawings, the dimensions of the structures are enlarged to illustrate the present invention in order to clarify the present invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

On the other hand, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Do not.

1 is a block diagram conceptually illustrating an E-cloud smart community system according to an embodiment of the present invention.

Referring to FIG. 1, the E-cloud smart community system 1000 according to an embodiment of the present invention may include a plurality of generators 200, a measurement unit 300, a central processing unit 400, and a driving control unit 500. Include.

The generators 200 are installed in each of the power using stations 100-1, 100-2,..., 100 -N to generate power. Here, power sources 100-1, 100-2,..., 100 -N refer to all buildings or places where power can be used, and easily to each home or larger factory, village or region. Can be understood. These power users 100-1, 100-2, ..., 100-N are connected to each other in order to implement the E-cloud smart community system 1000, which is an intelligent power supply system that is a digital form of the present invention. The network connection state must be maintained through a power supply network or a telephone line, and thus the power users 100-1, 100-2, ..., 100-N are transferred to the normal node in the network connection state. Can be understood.

The generator 200 may be, for example, a fuel cell that can be manufactured in a size that can be individually installed in each home, which is one of the power users 100-1, 100-2,..., 100 -N. The fuel cell forms an air electrode and a fuel electrode on both electrolytes, and when oxygen and hydrogen are supplied to the cathode and the fuel electrode, hydrogen and oxygen react electrochemically through the ion conduction phenomenon in the electrolyte to generate power. In this case, the oxygen supplied to the cathode of the fuel cell may use oxygen in the air as it is, but the hydrogen supplied to the anode may be supplied through a separate fuel supply device 250.

The fuel supply device 250 may supply a fuel gas including hydrogen to the fuel cell. For example, the power users 100-1, 100-2,. When the city gas is supplied for cooking, since the city gas includes hydrogen, the fuel supply device 250 may be replaced with the city gas supply device. In this case, the fuel supply device 250 may further include a desulfurization apparatus for removing sulfur components of the city gas or a reformer for reforming hydrogen from the city gas. At this time, the desulfurization apparatus or reforming apparatus may be installed inside each home, which is the interior of the generator 200 or the power users 100-1, 100-2, ..., 100-N.

These fuel cells have a simple, energy-converting step, and in principle, are eco-friendly, high-efficiency, pollution-free generators that produce energy by oxidizing hydrogen, and depending on the type of electrolyte, solid oxide fuel cells (SOFC) and molten carbonate fuel cells ( MCFC), phosphoric acid fuel cell (PAFC) or polymer fuel cell (PEFC). Among these, the fuel cell has the advantage of being the most efficient and less pollutant than the other molten carbonate fuel cell (MCFC), phosphate fuel cell (PAFC) or polymer fuel cell (PEFC), and the combined power generation is possible. It may include a solid oxide fuel cell (SOFC) it has.

Accordingly, the solid oxide fuel cell (SOFC) is an yttria-stabilized zirconia (YSZ), in which an electrolyte has a ceramic material such as high ionic conductivity, excellent redox stability, and excellent mechanical properties. , Sr) (Ga, Mg) O ₃ , Ba (Zr, Y) O _3, GDC (Gd doped CeO ₂ ), YDC (Y ₂ O ₃ doped CeO ₂ ) In addition, the cathode is formed in a porous structure using LSM (Lanthanum strontium manganite) and LSCF (Lanthanum strontium cobalt ferrite) to move oxygen, and the anode is yttria stabilized zirconia (YSZ) to move hydrogen. : It is characterized by being formed into a porous structure using a mixture of Yttria-Stabilized Zirconia) and nickel (Ni).

Meanwhile, since the solid oxide fuel cell (SOFC) generates waste heat of about 600 to 1000 ° C. unlike other fuel cells during the generation of electric power, power sources 100-1, 100-2, and the like. .., 100-N) can use this waste heat for hot water or heating. As a result, the solid oxide fuel cell (SOFC) may have high utility in terms of use compared to other fuel cells. In addition, since the solid oxide fuel cell (SOFC) can generate power in a form such as methane (CH ₄ ) without reforming hydrogen in nature, the reformer described above can be removed, and thus the fuel supply device ( 250) has the advantage that the structure can be simplified more.

On the other hand, the generator 200 has a different concept from the above-described solid oxide fuel cell (SOFC), the power generation by the solar power in the power use (100-1, 100-2, ..., 100-N), such as each home It can also be made of solar cells if possible to install. In this case, since the solar cell generates power only by solar heat, the fuel supply device 250 can be removed.

The measuring unit 300 is connected to each of the power stations 100-1, 100-2,..., 100 -N and is connected to each of the power stations 100-1, 100-2,. Measure the amount of power used in each. Specifically, the measurement unit 300 continuously measures the real-time power usage of each of the power usage points 100-1, 100-2,..., 100 -N, and transmits the same to the central processing unit 400 described below. send. As a result, the measurement unit 300 may check the amount of power used per unit time of each of the power using stations 100-1, 100-2,..., 100 -N. In addition, the measurement unit 300 receives surplus power remaining after being used from some or all of the power using places 100-1, 100-2,..., 100 -N.

The central processing unit 400 is connected to the measuring unit 300. The central processing unit 400 plays an important role in generating the necessary data as a digital signal through the information received from the measuring unit 300 in the E-cloud smart community system 1000 of the present invention. As a result, in the E-cloud smart community system 1000 of the present invention, it is possible to implement intelligent power supply using a digital signal generated from the central processing unit 400. Hereinafter, the central processing unit 400 will be described in more detail with reference to FIGS. 2 and 3.

FIG. 2 is a block diagram illustrating in detail the central processing unit of the E-cloud smart community system illustrated in FIG. 1, and FIG. 3 is a block diagram specifically illustrating a logic circuit unit of the central processing unit illustrated in FIG. 2.

2 and 3, the CPU 400 includes a predictor 410 and a storage 450.

The prediction unit 410 receives the amount of power of each of the power usage points 100-1, 100-2,. , 100-2, ..., 100-N) predict the amount of power needed in the future. At this time, the prediction unit 410 receives the amount of power used in the power use destinations (100-1, 100-2, ..., 100-N) from the measurement unit 300 in real time, and the amount of power used for each time zone It can be predicted.

To this end, the predictor 410 may include a collector 420, an accumulator 430, and a logic circuit 440. The collector is connected to the measurement unit 300 and collects power amount data of each of the power usage points 100-1, 100-2,..., 100 -N measured in real time from the measurement unit 300.

The accumulator 430 is connected to the collector 420 and cumulatively calculates power amount data collected by the collector 420 for each time period. Accordingly, the accumulator 430 may organize a database of the amount of power used for each time zone from each of the power using stations 100-1, 100-2,..., 100 -N.

The logic circuit unit 440 is connected to the accumulator 430 and is required at each of the power usage points 100-1, 100-2,..., 100 -N based on the power amount data calculated from the accumulator 430. The estimated power amount data is calculated using a logic circuit. In detail, the logic circuit unit 440 includes at least two variables, for example, the amount of power accumulated during a certain time, the maximum / minimum power used in a certain time, the rate of change of the amount of power over time, or the number of inflection points in the amount of power over time graph. Power ANDs 100-1, 100-2, by applying AND logic for some of the variables, OR logic for other variables, and NOT logic for other variables. .., 100-N) calculates the required power amount data for each. Accordingly, the logic circuit unit 440 divides each of the power usage destinations 100-1, 100-2,..., And 100 -N into a first logic circuit unit 442 and each of which calculates the first estimated power amount data. The second logic circuit unit 444 may include a second logic circuit unit 444 that calculates the second estimated power amount data by dividing the power use destination by time zone.

Accordingly, the prediction unit 410 may be the amount of power required in the future at each of the power using stations 100-1, 100-2,..., 100 -N through the first estimated power amount data calculated from the first logic circuit unit 442. Can be predicted, and the amount of power required for each future time slot at each of the power usage stations 100-1, 100-2,..., 100 -N through the second predicted power amount data calculated from the second logic circuit unit 444. Can be predicted.

In addition, the predictor 410 also reserves a reserve power ratio as a whole or in a time slot through the first and second predicted power amount data, in future power use stations 100-1, 100-2, ..., 100-N. Since it can be calculated separately, power shortages that can occur can be prevented.

The storage unit 450 receives and stores surplus power remaining from some or all of the power using stations 100-1, 100-2,..., 100 -N from the measuring unit 300. Accordingly, the predictor 410 is connected to the storage unit 450 to store the driving of the circuit when the power is suspended from the power using stations 100-1, 100-2,..., 100 -N. The power may be temporarily performed through the power stored in the unit 450.

On the other hand, the measurement unit 300 may include a quality measuring unit 310 for measuring in real time the quality of the power received from the power using places (100-1, 100-2, ..., 100-N). . For example, the quality measuring unit 310 may measure an important voltage level that may cause a fatal error in power use, among other factors of power.

Thus, the central processing unit 400 may further include a comparator 460 and a compensator 470. The comparison unit 460 is connected to the quality measuring unit 310 and compares the voltage level of the power measured therein with a reference value. The compensator 470 is connected to the comparator 460 and compensates by stepping down or stepping up the voltage level in real time when the voltage level of the power measured as a result of the comparison by the comparator 460 is different from the reference value.

The driving controller 500 is connected to the central processing unit 400 and receives surplus power stored in the storage unit 450 while receiving the predicted power amount data predicted by the prediction unit 410. The driving controller 500 may include the generators 200 installed at each of the power stations 100-1, 100-2, ..., 100-N and the power stations 100-1, 100-2, ... , 100-N, and the surplus power so that power is differentially supplied to each of the power using stations 100-1, 100-2,..., 100 -N according to the power amount data predicted by the predicting unit 410. And control the supply of power generated from the generators 200. As a result, the E-cloud smart community system 1000 of the present invention can efficiently supply power to the power users 100-1, 100-2, ..., 100-N as a whole.

Specifically, the surplus power is generated by the driving control unit 500 at a place where the predicted power amount data is more than the power generation amount of the generator 200 installed therein among the power usage points 100-1, 100-2,..., 100 -N. In order to solve the shortage by transmitting the surplus power, the surplus power is stored in the place where the predicted power amount data is smaller than the power generation amount of the generator 200 installed therein, and is supplied by the driving controller 500 to the power usage point where the power is insufficient. By selling, it is possible to obtain monetary profits accordingly. In this case, since the electric power generation where the surplus electric power is generated was not generated for the purpose of sale, the electric power can be supplied at a relatively lower cost than the power generated for the existing sale. The user can use the power sufficiently at a relatively low cost.

In addition, the driving control unit 500 drives the power generation amount of the generators 200 to be differentiated according to the power amount predicted by the predicting unit 410 of the central processing unit 400, or the generator 200 according to the predicted power amount data. By differentiating the power generation capacity of the power generation itself, it is possible to efficiently supply the power to the power users (100-1, 100-2, ..., 100-N) accordingly.

In addition, the power of the idle time zone is stored in the storage unit 450 of the central processing unit 400 through the amount of power predicted for each time zone by the predicting unit 410 of the central processing unit 400, and then the power is controlled at the peak time zone. By supplying the power users 100-1, 100-2,. .

On the other hand, the driving control unit 500 receives power in real time by the compensation unit 470 of the central processing unit 400, that is, the voltage level is kept constant, and delivers the power to the necessary power use, by using (100-1, 100-2, ..., 100-N) also has the advantage of good quality power available.

4 is a block diagram conceptually illustrating an E-cloud smart community system according to another embodiment of the present invention.

In this embodiment, since the E-cloud smart community system has the same configuration as the embodiment with reference to FIGS. 1 to 3 except for using one integrated generator, the same reference numerals are used for the same configuration. Duplicate detailed descriptions will be omitted.

Referring to FIG. 4, the E-cloud smart community system 1100 includes a generator 600, a measuring unit 300, a central processing unit 400, and a driving control unit 500 integrated into one.

The generator 600 has a structure in which one is connected in parallel with a plurality of power users 100-1, 100-2,..., 100 -N. For example, if the power sources 100-1, 100-2, ..., 100-N each home is in an apartment-like dwelling, the generator 600 provides power to all of these homes. It can be installed in the basement of an apartment, their common space, with enough capacity to do so. On the contrary, the generator 600 may mean a large power generation facility installed in a predetermined area and supplying power only to predetermined power users 100-1, 100-2, ..., 100-N.

The measurement unit 300 is connected to each of the power using stations 100-1, 100-2,. The central processing unit 400 is connected to the measuring unit 300 to calculate the required power amount data in the future through the amount of power measured by the measuring unit 300, and compensates in real time based on the voltage level of the power, 100-1, 100-2, ..., 100-N) Some of the surplus power is used and stored. The driving controller 500 is connected to the central processing unit 400 to receive the compensated power and surplus power, such as the predicted power amount data. Accordingly, the driving controller 500 is connected to the generator 600 and the power users 100-1, 100-2,..., 100 -N and generated from the generator 600 such as compensated power and surplus power. Controlled power is efficiently distributed to the required power usage point by the predicted power amount data.

As such, power generated from one generator 600 by creating a distribution of demand for power usage of the power usage stations 100-1, 100-2,..., 100 -N using the predicted power amount data. Can efficiently supply power to more power sources 100-1, 100-2, ..., 100-N. In addition, by optimizing the power generation capacity of the generator 600 by calculating the optimal amount of power used by the power usage points 100-1, 100-2,..., 100 -N, installation of the generator 600 is unnecessary. It is possible to prevent the increase in installation cost accordingly.

While the present invention has been described in connection with what is presently considered to be practical and exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

As described above, the E-cloud smart community system of the present invention predicts the amount of power actually required in a plurality of power sources, such as each home, thereby supplying power to each of the power users intelligently and efficiently. It can be used for power supply system of digital form which can supply.

100-1, 100-2, ..., 100-N: Power Users
200, 600: generator 300: measuring unit
310: quality measuring unit 400: central processing unit
410: predictor 420: collector
430: accumulator 440: logic circuit
450: storage unit 460: comparison unit
470: compensation unit 500: drive control unit
1000, 1100: E-Cloud Smart Community System

Claims (9)

At least one generator for supplying power to a plurality of power stations networked together;
A measuring unit connected to each of the power stations and measuring the amount of power used by each of the power stations;
It is connected to the measuring unit, and receives the amount of power data measured by the measuring unit based on this, the prediction unit for predicting the amount of power required in each of the power users and stores the surplus power delivered through the measuring unit from the power users. A central processing unit having a storage unit; And
Receives the surplus power stored in the storage unit while receiving the power amount data predicted by the prediction unit connected to the central processing unit, and connected to the generator and the power users respectively, each of the power use points according to the predicted power amount data E-cloud smart community system including a drive control unit for controlling the supply of the surplus power and the power generated from the generator so that power is differentially supplied to. The method of claim 1, wherein the prediction unit
A collecting unit connected to the measuring unit to collect the measured amount of power data;
An accumulating unit connected to the collecting unit and accumulating the amount of power data collected by the collecting unit for each hour; And
And a logic circuit unit connected to the accumulator and configured to calculate, using a logic circuit, the predicted power amount data required at each of the power users based on the power amount data calculated from the accumulator. The logic circuit of claim 2, wherein the logic circuit unit
A first logic circuit unit configured to calculate first predicted amount of power data by dividing each of the power users; And
E-cloud smart community system characterized in that it comprises a second logic circuit unit for calculating the second predicted power amount data by dividing each power usage by time zone. The E-cloud smart community system of claim 1, wherein the measuring unit comprises a quality measuring unit measuring a voltage level of power received from the power users. The method of claim 4, wherein the central processing unit
A comparison unit connected to the quality measuring unit to compare the measured voltage level with a reference value; And
Compensated to be connected to the comparator and the driving control unit, and when the voltage level is different from the reference value, the compensating of the voltage level in real time to the reference value and transferring the voltage level to the power users by the control of the driving control unit. E-cloud smart community system further comprises a wealth. The E-cloud smart community system of claim 1, wherein the generator includes a fuel cell that generates power using fuel gas including hydrogen provided from a fuel supply device. 7. The E-cloud smart community system according to claim 6, wherein the fuel cell is a solid oxide fuel cell (SOFC) having an electrolyte made of a ceramic material. 2. The E-cloud smart community system according to claim 1, wherein the generator is individually installed in each of the power users. The E-cloud smart community system of claim 1, wherein one generator is connected in parallel with each of the power users.

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