KR20180112917A - Total monitoring system and method of electric safety diagnosis for Building Integrated Photovoltaic system - Google Patents

Abstract

The present invention relates to a system and a method for integrally monitoring an electrical safety diagnosis of a building integrated photovoltaic system (BIPV), which prevent an occurrence of a secondary accident such as an electric shock and a fire due to insulation breakdown and an overload accident in a BIPV. To this end, the system of the present invention may comprise a BIPV and an integrated monitoring system. The integrated monitoring system may include a measuring unit, a transmitting unit, a receiving unit, a display unit, and a remote control unit. The measuring unit may measure preset measurement elements from the BIPV. The transmitting unit may transmit the measurement elements measured by the measuring unit using wired/wireless communication, and the receiving unit may receive measurement data transmitted from the transmitting unit. The display unit may receive the measurement data from the receiving unit to display the same. The remote control unit may determine whether each of the measurement elements is abnormal based on the data measured by the measuring unit, and remotely separate DC power of the BIPV when it is determined that an accident risk exists as a result of determination. Accordingly, an occurrence of a secondary accident such as an electric shock and a fire due to insulation breakdown and an overload accident in the BIPV is prevented.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an integrated monitoring system and method for electric safety diagnosis,

The present invention relates to an integrated monitoring system and method for electrical safety diagnosis of a building integrated photovoltaic power generation system, and more particularly, The present invention relates to an integrated monitoring system and method for electrical safety diagnosis of a building integrated photovoltaic power generation system.

Recently, the use of photovoltaic power generation equipment capable of generating electric power using solar energy has become increasingly popular. Solar cells using this solar energy are attracting attention as a new alternative energy source in the future because they do not use fossil fuels such as coal or oil, and use sunlight which is pollution-free and infinite energy.

Such solar cells are currently being used to generate power for solar power plants, buildings, and automobiles.

Generally, photovoltaic generation is a technique of directly producing electricity using a photovoltaic (PV). The solar cell is a semiconductor device that converts light energy into electrical energy using a photoelectric effect, and is composed of two semiconductor thin films each having a plus (+) and a minus (-) polarity. In addition, a plurality of solar cells are connected in series / parallel to generate a voltage and a current required by the user, and the user can use the power generated from the solar cell.

Solar photovoltaic power generation has various applications, but BIPV (Building Integrated Photovoltaic) technology, which uses solar PV as a covering material for buildings, has attracted worldwide attention as a promising new technology in the 21st century.

Building integration technology is a more aggressive technology that utilizes the existing building envelope as a tool of energy generation by simply avoiding the concept of protection against external stimuli and can play a part of the supply and demand of the solar cell. A double effect of reducing the cost can be expected.

However, in the conventional solar power generation system with integrated buildings, the power generation facilities are installed inside or on the roof of the building and exposed to the environment where the human body can always come into contact with, so that in case of insulation breakdown and overloading in power generation facilities, And a secondary accident such as a topic may occur.

In addition, the monitoring system for the integrated PV system of the building provides the user with only the information on the current generation amount and the cumulative generation amount, and does not provide the elements that can judge the electric safety such as the grounding accident and the insulation accident have.

Korean Registered Patent No. 10-1200631 (issued on November 12, 2012)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art, and it is an object of the present invention to secure electrical safety by monitoring main electrical safety-related factors of a building integrated solar power generation system.

In order to achieve the above object, an integrated monitoring system for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to the present invention may include a building integrated photovoltaic generation system (BIPV) and an integrated monitoring system.

The building integrated photovoltaic system (BIPV) may include a string, a connection board and an inverter.

The string may be constructed by connecting a plurality of solar modules, which produce electricity using solar light, in series. The connection module can collect the electricity supplied by the string and collect it into the power required by the system.

In addition, the inverter can convert the DC power supplied from the connection module to AC power.

Here, the connection section may include a DC circuit separation device capable of separating and blocking the DC power supplied to the inverter from the connection panel.

The integrated monitoring system may include a measuring unit, a transmitting unit, a receiving unit, a display unit, and a remote control unit.

The measuring unit measures at least one of a frame temperature of the building integrated photovoltaic power generation system (BIPV), a connection half reverse current diode temperature, a connection half internal temperature, a string insulation resistance, a string voltage, an inverter insulation resistance, .

The transmission unit can transmit the measurement element measured by the measurement unit using wired / wireless communication. The receiving unit may receive the measurement data transmitted from the transmitting unit.

Further, the display unit may receive and display the measurement data from the receiving unit.

The remote control unit may determine whether there is an abnormality for each measurement element based on the data measured by the measurement unit, and may disconnect the DC power of the connection unit remotely when it is determined that there is an accident risk according to the determination result.

The integrated monitoring method for electrical safety diagnosis of building integrated photovoltaic system according to an embodiment of the present invention includes the steps of measuring predetermined measurement elements from a building integrated photovoltaic system (BIPV) (S1) (S2), and transmitting and displaying the measured result (S3).

In operation S4, it is determined whether there is an accident based on the result of the determination. If the determination result indicates that there is an accident, the controller 130 supplies the measured result to the inverter 130 (S5) of disconnecting the DC power source and outputting an alarm signal to notify the user of the abnormality (S6).

As described above, the integrated monitoring system and method for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to the present invention can prevent a secondary accident such as an electric shock and a subject due to insulation breakdown and an overload accident in a building- It has the effect of preventing and preventing.

FIG. 1 is a block diagram illustrating an integrated monitoring system for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to an embodiment of the present invention.
FIG. 2 is a view illustrating a building integrated photovoltaic generation system according to an embodiment of the present invention.
FIG. 3 is a configuration diagram illustrating an integrated monitoring system for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to an embodiment of the present invention.
FIG. 4 is a flowchart illustrating an integrated monitoring method for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when an element is referred to as "comprising ", it means that it can include other elements as well, without excluding other elements unless specifically stated otherwise. Also, the terms " part, "" ... "," module ", and the like described in the specification mean units for processing at least one function or operation, and may be implemented by hardware or software or a combination of hardware and software .

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

Like reference symbols in the drawings denote like elements.

The present invention relates to an integrated monitoring system and method for electrical safety diagnosis in a building integrated photovoltaic system (BIPV).

FIG. 1 is a block diagram showing an integrated monitoring system for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to an embodiment of the present invention. FIG. 2 is a block diagram showing a building integrated photovoltaic power generation system according to an embodiment of the present invention to be.

As shown in FIG. 1, the present invention can include a building integrated photovoltaic power generation system (BIPV) 100 and an integrated monitoring system 200.

2, the building integrated photovoltaic power generation system (BIPV) 100 may include a string 110, a connection board 120, and an inverter 130. As shown in FIG.

The string 110 may be constructed by connecting a plurality of solar modules 111, which produce electricity using solar light, in series. In addition, the solar modules 111 may be installed on the wall of the building with a predetermined gap in the horizontal and vertical directions.

The connection block 120 is connected to a plurality of strings 110 and may collect the electricity supplied by the strings 110 and provide the collected electricity to the inverter 130.

In addition, the connection board 120 may include a DC circuit separating apparatus 121. [

The DC circuit separator 121 is operated under the control of the remote controller 250 so that the DC power supplied from the connection panel 120 to the inverter 130 can be disconnected and disconnected.

The inverter 130 may supply the DC power generated by the string 110 through the connection unit 120 and convert the AC power into AC power.

The integrated monitoring system 200 may include a measuring unit 210, a transmitting unit 220, a receiving unit 230, a display unit 240, and a remote control unit 250.

The measurement unit 210 measures at least one of the frame temperature, the connection half reverse current diode temperature, the connection half internal temperature, the string insulation resistance, the string voltage, the inverter insulation resistance, and the inverter internal temperature from the building integrated solar power generation system (BIPV) One can always be measured.

FIG. 3 is a configuration diagram illustrating an integrated monitoring system for electrical safety diagnosis of a building-integrated photovoltaic power generation system according to an embodiment of the present invention.

As shown in FIG. 3, the frame temperature can be measured in the solar module 111 constituting the string 110 of the building integrated solar power generation system (BIPV) 100.

In addition, the connection panel 120 can measure the connection semi-reverse current diode temperature, the connection half internal temperature, the string insulation resistance, and the string voltage.

The inverter 130 can measure the inverter insulation resistance and the inverter internal temperature.

Therefore, it is possible to prevent a fire accident by monitoring the frame temperature, the connection half reverse current diode temperature, the connection half internal temperature and the inverter internal temperature.

In addition, by monitoring string insulation resistance, string voltage and inverter insulation resistance, it is possible to prevent electric shock accidents due to insulation breakdown.

The transmission unit 220 can transmit the measurement element measured by the measurement unit 210 using wired / wireless communication. The receiving unit 230 may receive the data transmitted from the transmitting unit 220 and transmit the received data to the display unit 240 and the remote control unit 250.

The display unit 240 may receive and display the measured values measured by the measuring unit 210.

The remote control unit 250 controls the measurement unit 210 and the display unit 240 to determine whether there is an abnormality for each measurement element based on the data acquired from the measurement unit 210. According to the determination result, If so, the DC circuit separator 122 can be remotely controlled to separate the DC circuit.

The integrated monitoring method for electrical safety diagnosis of building integrated photovoltaic system according to an embodiment of the present invention includes the steps of measuring predetermined measurement elements from a building integrated photovoltaic system (BIPV) (S1) (S2), and transmitting and displaying the measured result (S3).

Here, the measurement elements may include at least one of a frame temperature, a connection half-reverse current diode temperature, a connection half internal temperature, a string insulation resistance, a string voltage, an inverter insulation resistance, and an inverter internal temperature.

In operation S4, it is determined whether there is an accident based on the result of the determination. If the determination result indicates that there is an accident, the controller 130 supplies the measured result to the inverter 130 (S5) of disconnecting the DC power source and outputting an alarm signal to notify the user of the abnormality (S6).

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, And all changes to the scope that are deemed to be valid.

100: Building Integrated Photovoltaic System (BIPV)
110: string 111: solar module
120: connection board 121: DC circuit separator
130: INVERTER 200: Integrated monitoring system
210: measuring unit 220: transmitting unit
230: Receiver 240: Display
240: remote control unit

Claims (4)

A connection string for collecting electric power supplied by the string and for collecting electric power required by the system, and a connection module for connecting the connection module to the connection module, A building-integrated photovoltaic generation system (BIPV) comprising an inverter for converting supplied DC power into AC power,
A measurement unit for always measuring at least one of a frame temperature of the building integrated photovoltaic power generation system (BIPV), a connection half reverse current diode temperature, a connection half internal temperature, a string insulation resistance, a string voltage, an inverter insulation resistance and an inverter internal temperature;
A transmission unit for transmitting the measurement element measured by the measurement unit using wired / wireless communication;
A receiving unit for receiving measurement data sent from the transmitting unit;
A display unit for receiving and displaying measurement data from the receiver;
And a remote control unit for determining whether there is an abnormality for each measurement element based on the data measured by the measurement unit and remotely disconnecting the DC power of the connection unit when it is determined that there is an accident risk according to the determination result Power generation system electrical safety diagnosis integrated monitoring system.
The method according to claim 1,
And a DC circuit isolation device that is operated under the control of the remote controller to disconnect the DC power.
A connection string for collecting electric power supplied by the string and for collecting electric power required by the system, and a connection module for connecting the connection module to the connection module, A building-integrated photovoltaic generation system (BIPV) comprising an inverter for converting supplied DC power into AC power,
(S1) measuring predetermined measurement elements from the building integrated solar power generation system (BIPV);
Transmitting the measured result using wired / wireless communication (S2);
Transmitting and displaying the measured result (S3);
Comparing the measured result with a predetermined reference range and determining whether the measured result is dangerous (S4);
Separating DC power supplied to the inverter from the connection module if it is determined that there is an accident risk based on the determination result (S5); And
And a step (S6) of outputting an alarm signal to inform the user of the abnormality.
The method of claim 3,
In step S1
Wherein the metrology element comprises at least one of a frame temperature, a connection half-reverse current diode temperature, a connection half internal temperature, a string insulation resistance, a string voltage, an inverter insulation resistance and an inverter internal temperature. Way.

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