KR20200077761A - System and method for managing photovoltaic power generation equipment - Google Patents

Abstract

The present invention relates to a system for managing a photovoltaic power generation facility, which can monitor a state of a small-scale photovoltaic power generation facility installed in a house in real time. The system for managing a photovoltaic power generation facility comprises: a smart socket including a photovoltaic power generation facility to connect loads, and measuring voltage and a current of the connected load to transmit the same to a management server in accordance with a specified method; and a management server measuring voltage, a current, a power factor, and a solar radiation amount in real time by linking information received from the smart socket with weather information, and using measured data to process at least one information of an amount of electricity cost savings, power generation efficiency for each small-scale photovoltaic power generation facility manufacturer, and failure history management information in real time so as to provide a real-time monitoring service through a terminal of an information requestor.

Description

Solar power generation facility management system and method{SYSTEM AND METHOD FOR MANAGING PHOTOVOLTAIC POWER GENERATION EQUIPMENT}

The present invention relates to a solar power generation facility management system and method, and more specifically, an Open Connectivity Foundation (OCF) standard-based small photovoltaic power generation equipment (PV) connection outlet (or adapter) and an indoor router By transmitting data to the management server of the upper network to collect it, the management server processes the collected information and measures the voltage, current, power factor, and solar radiation in real time in connection with weather information, thereby allowing small solar light installed in the house. The present invention relates to a solar power generation facility management system and method, which enables real-time monitoring of the state of a power generation facility.

Recently, local governments (ie, local governments) in Korea are subsidizing annually to implement small-scale solar power generation facilities (eg, small-capacity solar power generation facilities under 1MW).

However, facility failures after the construction of small-scale photovoltaic power generation facilities are reported to the contractor only when consumers have noticed in advance due to insufficient maintenance system, and also cumulative power generation, power generation efficiency and manufacturers of small-scale photovoltaic power generation facilities Due to the lack of information provision service system such as quality control by star, if consumers need the above information, they are measuring the amount of power generation by purchasing the instrument directly.

On the other hand, due to the recent implementation of an unlimited access guarantee system for small and new capacity under 1MW and the government's declaration of energy conversion, small-scale photovoltaic power generation is expected to spread in the future, but the company will lead the standard technology that can provide services such as monitoring and maintenance in connection with the platform. , Standardization of inverter manufacturing technology and communication protocol is being delayed.

In addition, due to the lack of economic efficiency due to the increase in technology development costs of related companies due to lack of technical compatibility, it is difficult to build an information service ecosystem that combines platform and mobile.

In addition, it is difficult to grasp the generation amount and power generation efficiency of all photovoltaic facilities completed by each local government, and the system system that can comprehensively promote quality control by manufacturer and production year is insufficient, so small-scale photovoltaic facilities installed in the home (or There is a problem that it is not possible to monitor (or monitor) the state of a small-scale solar power system in real time.

Background of the invention is disclosed in Republic of Korea Patent Registration No. 10-1897816 (2018.09.05. registration, network system).

According to an aspect of the present invention, the present invention was created to solve the above problems, and through a high-level network through an outlet (or adapter) and an indoor router for linking a small-scale solar power facility based on the Open Connectivity Foundation (OCF) standard The data is delivered to the management server for the collection, and the management server processes the collected information and measures the voltage, current, power factor, and solar radiation in real time in connection with weather information, so that the state of the small-scale photovoltaic facility installed in the house The purpose of the present invention is to provide a solar power generation facility management system and method that enables real-time monitoring.

A photovoltaic power generation facility management system according to an aspect of the present invention includes a smart outlet that connects a load including a photovoltaic power generation facility, measures voltage and current of the connected load side, and transmits it to a management server according to a specified method; Measures voltage, current, power factor, and solar radiation in real time by linking the information received from the smart outlet with weather information, and uses the measured data to save electricity bills in real time and power generation efficiency by small solar power plant manufacturers And a management server that processes at least one of the failure history management information and provides a real-time monitoring service through the terminal of the information requester.

In the present invention, the smart outlet, a voltage and current detection unit for detecting the load-side voltage and current; A power failure blocking unit that automatically opens in the event of a load failure; And a communication unit that detects the load-side voltage and current and transmits it to the management server.

In the present invention, the smart outlet is characterized in that it is connected to the Internet router installed in the subscriber's premises and wired or wirelessly to communicate with the management server.

In the present invention, the smart outlet, a unique ID or account is set, and the memory for storing the detected load-side voltage and current values.

In the present invention, the Internet router communicates with the smart outlet through wired or wireless communication to transmit an information request message from the management server to the smart outlet, or, conversely, to information output from the smart outlet to the management server It is characterized by.

In the present invention, the management server is implemented in the form of a cloud server, and is characterized by including an OCF-based cloud interface to transmit and receive OCF-based data therein.

In the present invention, the management server may receive data in a specified period or a designated transmission unit from a smart outlet connected to each load side, and the smart outlet may transmit data to the internal memory in the specified period or a designated transmission unit. It is characterized in that it stores the data, transmits the data in the event of an event from the management server or transmits it according to a specified period, and the data means load-side measurement data for a load monitoring service.

According to another aspect of the present invention, a method for managing a photovoltaic power generation facility, in a method for managing a photovoltaic power generation facility management system, when there is an event for requesting a monitoring service by an information requester, the management server may perform an event for the event through a cloud interface. Transmitting an information update request to a smart outlet; Receiving, by the smart outlet, a notification requesting information update regarding an event from the management server; When the smart outlet receives an information update request notification regarding an event, fetching information corresponding to the requested event from load-side information stored in the internal memory of the smart outlet; The smart outlet fetching information corresponding to the requested event and passing the fetched information to the management server; And receiving, by the management server, information corresponding to the event and responding to the information requester after processing.

Solar power generation facility management method according to another aspect of the present invention, in a method of managing a solar power generation facility management system, when a predetermined period is reached, the management server measures information on the specified smart outlet through an internal cloud interface. Requesting; Transmitting the measurement information request to a designated smart outlet by the cloud interface of the management server; A step of fetching measurement information for a corresponding home device connected to the designated smart outlet receiving the measurement information request and transmitting the measurement information to a cloud interface of the management server; And processing, by the management server, measurement information received through the cloud interface, and providing the processed result to the information requester.

According to an aspect of the present invention, the present invention is to collect data by transferring data to a management server of an upper network through an outlet (or adapter) for connecting to a small-scale photovoltaic power generation facility based on the Open Connectivity Foundation (OCF) standard and an indoor router, The management server processes the collected information and measures the voltage, current, power factor, and solar radiation in real time in connection with weather information, so that the state of a small-scale photovoltaic facility installed in a house can be monitored in real time.

1 is an exemplary view showing a schematic configuration of a solar power generation facility management system according to an embodiment of the present invention.
Figure 2 is an exemplary view showing a more specific configuration of the smart outlet in Figure 1 above.
FIG. 3 is an exemplary view shown in FIG. 1 for explaining a service function of the management server in more detail.
4 is an exemplary view shown in FIG. 1 to explain a method of periodically transmitting data from a smart outlet to a management server.
5 is a flowchart illustrating a data transmission method for managing a solar power generation facility according to a first embodiment of the present invention.
6 is a flowchart illustrating a data transmission method for managing a solar power generation facility according to a second embodiment of the present invention.

Hereinafter, an embodiment of a solar power generation facility management system and method according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of components shown in the drawings may be exaggerated for clarity and convenience. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or practice. Therefore, the definition of these terms should be made based on the contents throughout this specification.

Hereinafter, the photovoltaic power generation facility management system according to this embodiment installs an outlet (or adapter) for connecting a small-scale photovoltaic power generation facility based on the Open Connectivity Foundation (OCF) standard and manages a power company (for example, KEPCO) through an indoor router. It collects and processes data through a server, and measures voltage, current, power factor, and solar radiation in real time in connection with weather information. And, by requesting the quality management portal service for information such as the amount of electricity bill reduction and power generation efficiency by manufacturer (ie, small-scale solar power plant manufacturer), and failure history management by using the measured data in real time (for example, consumers, This is to prevent the reverse transmission by identifying the failure status of the solar power generation facility's single operation prevention device in case of power failure and the real-time monitoring service that combines the management server and the mobile (i.e., mobile communication terminal) to the local governments, enterprises, etc.

1 is an exemplary view showing a schematic configuration of a solar power generation facility management system according to an embodiment of the present invention. 2 is an exemplary view showing a more specific configuration of the smart outlet 100 in FIG. 1.

As illustrated in FIG. 1, the solar power generation facility management system according to the present embodiment includes a smart outlet 100, an Internet router 200, and a management server 300.

2, the smart outlet 100 may be configured as a two-hole outlet (see FIG. 2(a)) or a one-hole outlet (see FIG. 2(b)). However, it is illustrated by way of example for purposes of understanding and is not intended to be limiting.

Each sphere of the smart outlet 100 includes a power failure blocking unit 110, a voltage and current detection unit 120, and a communication unit 130.

The voltage and current detection unit 120 detects the load-side voltage and current connected to the smart outlet 100. The voltage and current detection unit 120 detects a load-side power failure connected to the smart outlet 100. The voltage and current detection unit 120 detects the load-side voltage and current connected to the smart outlet 100 and transmits it to the management server 300 through the communication unit 130.

The blackout block 110 is automatically opened (or turned off) in the event of a power failure on the load side.

The blackout block 110 is automatically opened in the event of a failure to prevent reverse transmission from the power system.

For example, when the photovoltaic power generation facility (PV) connected to the smart outlet 100 is operated normally, it is in a closed (or on) state, and accordingly, the voltage and current detector 120 load-side voltage connected to the smart outlet 100 And current. The detected load-side voltage and current values are transmitted to the management server 300 through the communication unit 130.

The communication unit 130 is connected to the Internet router 200 installed in the subscriber's premises by wired or wireless (eg, WiFi, mobile communication service, etc.).

The smart outlet 100 has its own unique ID (or account), and also includes a memory (not shown) for storing the detected load-side voltage and current values.

In addition, the communication unit 130 additionally performs a function of a control unit (not shown), and fetches information (for example, load-side voltage and current values) stored in the memory (not shown) in real time or periodically (ie, constant information) (Withdrawal in units) to the management server 300.

The Internet router 200 communicates wired or wirelessly with the smart outlet 100 to transmit an information request message to the smart outlet 100 or, conversely, to the information output from the smart outlet 100 through the management server ( 300).

The management server 300 requests the information required for the smart outlet 100 through the Internet router 200, or delivers the load-side voltage and current values from the smart outlet 100 through the Internet router 200. Can receive

The management server 300 measures the voltage, current, power factor, and solar radiation in real time by linking the received information with weather information.

3 is an exemplary view shown in FIG. 1 to describe the service function of the management server 300 in more detail.

As shown in FIG. 3, the management server 300 of the solar power generation facility management system according to the present embodiment utilizes the measured data to reduce the electricity bill in real time and the manufacturer (ie, a small-scale solar power generation facility manufacturer) ), power generation efficiency, and fault history management. In addition, the management server 300 is a terminal (for example, a mobile communication terminal) (MT) of an information requester (eg, a consumer, a local government, a company, etc.) through a quality management portal service (or service app (APP)) (not shown). Real-time monitoring service.

Also, referring to FIG. 3, the management server 300 may be implemented in the form of a cloud server, and the management server 300 includes an OCF-based cloud interface to transmit (or transmit/receive) OCF-based data. do.

In addition, the management server 300 may provide a new additional service utilizing the measured data in connection with an additional service provider.

Meanwhile, referring to FIG. 3, a plurality of loads (for example, a smart home appliance, an energy storage device, a solar power generation facility, etc.) are included in the customer's home, and the plurality of loads are each smart outlets (or outlets) 100. Connected to.

Therefore, a plurality of smart outlets 100 are installed, and each ID (or account) is set, and is connected to the management server 300 in the form of a cloud server through an internet sharer (or sharer) 200.

As a result, the smart outlet 100 and the management server 300 are connected through the Internet, and data based on OCF (that is, data transmitted from the smart outlet to the management server, or data transferred from the management server to the smart outlet). To send.

In addition, the management server 300 is a terminal (for example, a mobile communication terminal) (MT) of an information requester (eg, a consumer, a local government, a company, etc.) through a quality management portal service (or service app (APP)) (not shown). It provides real-time monitoring services (voltage, current, power factor, solar radiation, power quality, electricity savings, power generation efficiency by manufacturer, breakdown history, etc.).

At this time, the management server 300, as shown in Figure 4, may receive data at a specified period (or a designated transmission unit) from the smart outlet 100 connected to each load side. Therefore, the smart outlet 100 stores data to be transmitted in the designated period (or designated transmission unit) in an internal memory (not shown).

In this case, the transmitted data means measurement (or meter) data for the monitoring service (voltage, current, power factor, solar radiation, power quality, electricity savings, power generation efficiency by manufacturer, failure history, etc.).

This is to collect and transmit the data to be transmitted in a designated unit in case the Internet sharer 200 does not operate (ie, the Internet connection is not smooth).

In addition, as shown in FIG. 4, the data to be transmitted may be collected and transmitted every predetermined period (or a predetermined transmission unit), but data is not periodically transmitted, but data is continuously collected (ie, memory) It can be stored only for a certain period of time, and can be transmitted only when an event occurs (for example, the requestor's monitoring service request).

Hereinafter, two methods of transmitting the data to the management server will be described with reference to FIGS. 5 and 6.

5 is a flowchart illustrating a data transmission method for managing a solar power generation facility according to a first embodiment of the present invention.

Referring to FIG. 5, when there is a request for monitoring service (ie, an event occurs) by an information requester (eg, a consumer, a local government, a company, etc.) (in this case, the event is aperiodic), the management server 300 generates an event (Example: Request for information update for DR (Demand Request) event) (S101).

The information update request for the event is transmitted to the smart outlet 100 (or outlet) through the cloud interface (not shown) of the management server 300.

Accordingly, the smart outlet 100 (or outlet) receives an information update request notification regarding an event (for example, a DR event) from the management server 300 (S102).

As described above, when the smart outlet 100 (or outlet) receives a notification requesting information update related to an event (for example, a DR event), the smart outlet 100 (or outlet) is from an in-home device (ie, a load-side device). Information corresponding to the requested event is fetched (S103).

Substantially, since load-side information is stored in a memory (not shown) inside the smart outlet 100 (or outlet), information corresponding to the requested event is fetched from the memory (not shown).

In addition, when the smart outlet 100 (or outlet) fetches information corresponding to the requested event, the retrieved information is transmitted to the management server 300 (S104).

Accordingly, the management server 300 receives information corresponding to the event (eg, DR event) and processes (ie, status monitoring), and then responds to the information requester (eg, consumer, local government, company, etc.) (S105) ).

6 is a flowchart illustrating a data transmission method for managing a solar power generation facility according to a second embodiment of the present invention.

Referring to FIG. 6, when a predetermined period is reached, the management server 300 requests information (for example, metering information) about the designated smart outlet 100 (or outlet) through an internal cloud interface (S201 ).

Accordingly, the cloud interface of the management server 300 delivers the information (eg, metering information) request (ie, information request message) to the designated smart outlet 100 (or outlet) (S202).

Accordingly, the designated smart outlet 100 (or outlet) receiving the information (eg, metering information) request (that is, an information request message) is connected to the corresponding home device (eg, smart home appliance, energy storage device, solar light). The information (eg, metering information) on the power generation facility is withdrawn and transmitted to the cloud interface of the management server 300 (S203).

Substantially, since the load-side information (that is, the indoor device) is stored in the memory (not shown) inside the smart outlet 100 (or the outlet), information corresponding to the requested event is stored in the memory (not shown). Withdraw.

Accordingly, the management server 300 receives and processes information (eg, metering information) received through the cloud interface (ie, status monitoring) (S204), and requests the information from the processed result (eg, a consumer, Local governments, companies, etc. (S205).

For example, the management server 300 provides real-time information to terminals (eg, mobile communication terminals) (MT) of information requesters (eg, consumers, local governments, companies, etc.) through a quality management portal service or a service app (APP) (not shown). Monitoring services can be provided.

As described above, this embodiment enables data to be collected by transferring data to a management server of a higher-level network through an outlet (or adapter) for connecting to a small-scale photovoltaic power generation facility based on the Open Connectivity Foundation (OCF) and an indoor router, and collecting the management server. By processing the old information and measuring the voltage, current, power factor, and solar radiation in real time in connection with weather information, it is possible to monitor the state of a small-scale photovoltaic power generation facility installed in a house in real time.

The present invention has been described above with reference to the embodiment shown in the drawings, but this is only exemplary, and those skilled in the art to which the art pertains may have various modifications and other equivalent embodiments. You will understand the point. Therefore, the technical protection scope of the present invention should be defined by the claims below. Also, the implementations described herein can be implemented, for example, as a method or process, apparatus, software program, data stream, or signal. Although discussed only in the context of a single form of implementation (eg discussed only as a method), implementation of the discussed features may also be implemented in other forms (eg, devices or programs). The device can be implemented with suitable hardware, software and firmware. The method can be implemented in an apparatus, such as a processor, generally referring to a processing device, including, for example, a computer, microprocessor, integrated circuit, or programmable logic device. The processor also includes communication devices such as computers, cell phones, portable/personal digital assistants (“PDAs”), and other devices that facilitate communication of information between end-users.

100: smart outlet
110: blackout block
120: voltage and current detection unit
130: communication unit
200: Internet router
300: management server
MT: mobile communication terminal

Claims (9)

A smart outlet that connects a load including a photovoltaic power generation facility, measures voltage and current of the connected load side, and transmits it to a management server according to a specified method; And
Measure the voltage, current, power factor, and solar radiation in real time by linking the information received from the smart outlet with weather information, and use the measured data to reduce the electricity bill in real time and the power generation efficiency of each small solar power plant manufacturer And a management server that processes at least one of the failure history management information and provides a real-time monitoring service through the terminal of the information requester.
According to claim 1, The smart outlet,
A voltage and current detector for detecting load side voltage and current;
A power failure blocking unit that automatically opens in the event of a load failure; And
And a communication unit that detects the load-side voltage and current and transmits it to the management server.
According to claim 1, The smart outlet,
Solar power generation facility management system, characterized in that it is connected to the Internet server installed in the subscriber's premises and wired or wirelessly to communicate with the management server.
According to claim 1, The smart outlet,
A unique PV ID or account is set, and the memory for storing the detected load-side voltage and current values; PV power management system comprising a.
According to claim 3, The Internet router,
Solar power generation facility management characterized in that the smart outlet communicates with the smart outlet by wire or wirelessly to transmit an information request message from the management server to the smart outlet or, conversely, to transmit information output from the smart outlet to the management server. system.
The method of claim 1, wherein the management server,
It is implemented in the form of Klaus server,
A solar power generation facility management system comprising an OCF-based cloud interface for transmitting and receiving OCF-based data therein.
According to claim 1,
The management server may receive data in a specified cycle or a designated transmission unit from a smart outlet connected to each load side,
The smart outlet stores data to be transmitted in an internal memory in the specified period or in a specified transmission unit, and transmits the data in the event of an event from the management server or according to a specified period,
The data, the solar power generation facility management system, characterized in that means the load-side measurement data for the monitoring service of the load.
In the method of managing the solar power generation facility management system,
If there is a monitoring service request event by the information requester, the management server transmits a request for updating information about the event to the smart outlet through the cloud interface;
Receiving, by the smart outlet, a notification requesting information update regarding an event from the management server;
When the smart outlet receives an information update request notification regarding an event, fetching information corresponding to the requested event from load-side information stored in the internal memory of the smart outlet;
The smart outlet fetching information corresponding to the requested event and passing the fetched information to the management server; And
And the management server receiving and processing the information corresponding to the event and then responding to the information requester.
In the method of managing the solar power generation facility management system,
Requesting measurement information for a designated smart outlet through an internal cloud interface when a predetermined period is reached;
Transmitting the measurement information request to a designated smart outlet by the cloud interface of the management server;
A step of fetching measurement information for a corresponding home device connected to the designated smart outlet receiving the measurement information request and transmitting the measurement information to a cloud interface of the management server; And
The management server processing the measurement information received through the cloud interface, and providing the processed result to the information requester; Solar power generation facility management method comprising a.

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