KR101927759B1 - optimum control system for photovoltaic energy generation system - Google Patents

Abstract

The present invention provides an optimal control system of a solar power generation system and an optimal control method of a solar power generation system using the optimal control system. The optimal control system comprises: a microgrid EMS platform performing centralized integrated control and management by interlocking with power generation systems and power storage systems such as a solar power generation (PV) system, a steam supply and power generation (CHP) system, an energy storage system (ESS), and a fuel cell (FC) and interlocking with an Internet of things (IoT) device in addition to an energy facility; a pre-management system having a plurality of power management systems (PMS) isolated by function to reduce a load on the microgrid EMS platform and minimize a delay of response rate at the control of the platform, in order to perform a function of each of the PMSs; and a distributed processing engine distributing, by function, data input from the isolated PMSs constituting the pre-management system, processing the data, and building a database. According to the present invention, an optimal control function can be performed on the solar power generation system by using various techniques for modeling, scheduling, and predicting a solar energy generation source and a load, various types of solar power generation systems can be integrally controlled and managed in the center, and an economical and stable power supply system can be provided.

Description

[0001] Optimal control system for photovoltaic energy generation system [0002]

The present invention relates to an optimal control system for a photovoltaic energy generation system, and more particularly, to an optimal control system for a photovoltaic energy generation system using modeling, scheduling and various prediction techniques of a photovoltaic power generation source and load The present invention relates to an optimal control system for a photovoltaic power generation system capable of realizing an economical and stable power supply system by enabling centralized integrated control and operation.

Generally, the solar energy generation system is a system that utilizes renewable energy such as photovoltaic (PV) and energy storage system (ESS). The solar energy requires pure solar energy It is eco-friendly energy that can produce electricity using light and photovoltaic power generation facilities.

Such solar energy is used in various forms. One of the most commonly used ones is a photovoltaic power generation system that uses a solar photovoltaic module to generate electricity. The photovoltaic power generation system Storage system, and the like.

The photovoltaic power generation system is designed with various facilities according to the purpose of solar energy such as grid-connected power plant and grid, and recently it is linked with an energy storage system (ESS) which is called as next generation power network .

In addition, the energy storage system is applied to both the power generation area for generating electricity, the power transmission and distribution area for transferring the generated electricity, and the consumer (consumer) area where the electricity is actually used.

In this way, solar energy uses solar power generation system or energy storage system (ESS), and it is used in various electricity demand layers such as being used to supply and control electric power to building equipment installed in buildings such as lighting equipment and air conditioning equipment have.

However, in the conventional photovoltaic energy generation system, there are technical limitations in performing power supply and control, and it has been difficult to realize an economical and stable power supply, and only the simple management of the building energy has been performed, There was a problem of falling.

Korean Patent Publication No. 10-1015133

The present invention has been devised to solve the above-mentioned conventional problems and to provide an optimal control function for the photovoltaic power generation system by utilizing the modeling, scheduling and various prediction techniques of the photovoltaic power generation source and the load The present invention provides an optimal control system and a control method for a photovoltaic power generation system that can realize an economical and stable power supply system by enabling centralized control and operation of the system.

The present invention relates to a micro-grid EMS platform, which is a centralized integrated control and operation system, for minimizing the delay of reaction speed as well as reducing the overall load on the optimal control system. And to provide an optimal control system and a control method of a solar energy generation system.

The present invention enables optimal control of the solar energy generation system on the basis of energy production and energy demand, enables integration control of the micro grid EMS platform and various building facilities installed in the building, The present invention provides an optimal control system and a control method of a solar energy generation system that can integrate management and efficiency of energy.

According to an aspect of the present invention, there is provided an optimum control system for a solar photovoltaic power generation system, including a photovoltaic (PV), a CHP, an energy storage system (ESS), a fuel cell Micro Grid EMS platform for centralized integration control and management in conjunction with system and storage systems and in conjunction with energy facilities as well as Internet (IoT) devices; A dictionary management system designed to perform a function of each of the micro-grid EMS platforms with a plurality of independent power management systems (PMS) in order to minimize the delay in response speed when controlling the platform; A distributed processing engine for distributing data inputted from a plurality of independent power management systems constituting the dictionary management system to each database and processing the data into databases; And a control unit.

Here, the micro grid EMS platform includes: a system management unit for collectively managing and operating the platform; An application group for various kinds of prediction, statistical analysis, and scheduling generation including supply and load power estimation using a database collected and recorded through a plurality of independent power management systems (PMS); The centralized control and management statuses performed by the platform are monitored through data communication through API (Application Programming Interface) between the platform and the integrated operation center (TOC), and the centralized control and management A web service and an interface unit for providing a web service for the web service; An independent modulator for performing independent and stable functions of integrated control and management through an independent modular configuration in the platform; The central integrated control and management information generated within the platform, including the load measurement information of the energy facility, the energy generation and storage information, and the Internet IoT collection information collected through a plurality of independent power management systems (PMS) A database for storing large data through data mining; And a control unit.

Here, the independent modularization unit may include: an event management module for managing a reference event required for performing an operation control for each energy facility associated with the platform; A scenario management module for managing scenarios that enable automatic operation control on energy facilities associated with the platform; A command dispatcher module for generating an internal command necessary for performing an operation control for each energy facility associated with the platform; A plurality of power generation systems associated with the platform, a status and operation status of the storage system and the energy facilities, a notification module for notifying the operator and the consumer of energy supply and demand, And a control unit.

Here, the dictionary management system monitors and controls power generation systems and storage systems, including PV, CHP, ESS, fuel cell (FC), associated with the platform An electrical production PMS for; An electricity demand PMS for monitoring and managing the measured load of the energy facilities measured through the Remote Meter Reading Infrastructure (AMI) associated with the platform; Environment PMS for collecting indoor and outdoor environmental data including temperature and humidity, wind direction, wind speed, and solar radiation for use in controlling Internet devices and building equipment such as lighting devices and air conditioners connected to the platform; And a control unit.

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According to the present invention, it is possible to perform optimal control functions for a solar energy generation system by utilizing modeling, scheduling and various prediction techniques of a solar energy generator and a load, Control and management of the power supply system, and it is possible to achieve a useful and economical and stable power supply system.

The present invention relates to a micro-grid EMS platform, which is a centralized integrated control and operation system, to minimize the delay of the reaction speed as well as to reduce the overall load on the optimal control system. Can be useful to achieve.

The present invention can optimally control the photovoltaic energy generation system based on energy production and energy demand, and can control the load and the power generation in a balanced manner, as well as control the frequency, voltage and current It is possible to stabilize the change quickly, and it is possible to integrate and control the Micro Grid EMS platform and each building facility installed in the building, thereby achieving the usefulness of integrating management and efficiency of the building energy.

The present invention can generate big data through data mining using update data collected from various energy facilities, production forecast, weather prediction, statistical analysis, and scheduling data, which are newly generated through the update of collected data. Can be utilized to more effectively control and manage the photovoltaic power generation system.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall configuration diagram illustrating an optimal control system of a solar energy generation system according to an embodiment of the present invention; FIG.
2 is a configuration diagram illustrating a database unit constructed in an optimal control system of a solar energy generation system according to an embodiment of the present invention.
3 is a schematic flow chart for explaining an optimal control method of a solar energy generation system according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

1 and 2, an optimal control system for a solar energy generation system according to an embodiment of the present invention includes a micro grid EMS platform 100 and a dictionary management system 100 provided in association with a lower portion of the platform 100. [ And a distributed processing engine 300 for distributing collected data to a database unit included in the platform 100.

The microgrid EMS (Energy Management System) platform 100 is coupled with power generation systems and storage systems, including PV, CHP, ESS, Fuel Cells Of course, in addition to the energy facilities that consume various heat and electricity, it also integrates with various Internet (IoT) devices and building facilities, and is a configuration for centralized control and management of all of them on a platform basis.

The micro grid EMS platform 100 includes a system management unit 110 for collectively managing and operating the micro grid EMS platform 100 and a plurality of power management units An application group unit 120 for generating various predictions, statistical analysis and scheduling, including forecasting of supply and load power quantities using a database collected and recorded through a system (PMS), integrated operation with the microgrid EMS platform 100, The micro-grid EMS platform 100 monitors the centralized control and management state performed by the micro-grid EMS platform 100 through the API (Application Programming Interface) between the center (TOC) 10 and the operator 20 or the consumer 30 A web service for providing a web service upon request of the web service for centralized control and management performed by the micro grid EMS platform 100 And an interface unit 130. The independent modularization unit 140 performs an independent and stable function of integrated control and management through an independent modular structure in the micro grid EMS platform 100, Generated in the micro grid EMS platform 100, including load measurement information, energy generation and storage information, and Internet IoT collection information of energy facilities collected through a plurality of independent power management systems (PMS) And a database unit 150 for recording the integrated control and management information as well as the big data through data mining.

The independent modularization unit 140 includes an event management module 141 for managing reference events required to perform operation control for each energy facility associated with the platform 100, A scenario management module 142 for managing scenarios for performing automatic operation control on various energy equipments associated with the platform 100, A command dispatcher module 143 for generating an internal command necessary for execution of the system, a plurality of power generation systems and storage systems associated with the platform 100, And a Notification Module 144 for notifying the operator and the consumer of the received information.

The independent modularization unit 140 is provided with a batch processing module so that various information collected through a plurality of independent PMSs 210, 220, and 230 constituting the dictionary management system 200 Can be collected in a morning, afternoon, or a day until a predetermined amount is reached, and then batch processed.

The database unit 150 includes an integrated DB having a logical classification of environment, collection, history, statistics, prediction, and schedule, an integrated DB for operating a platform with optimum energy from the center, a relational DB , A power generation relation DB according to power generation conditions, a load relation DB according to load conditions, and an operation control DB for applying appropriate modeling.

That is, the database unit 150 includes a repository DB 151 for managing environment information and operating information of a platform, which is an integrated control and operation system, and platform operators such as various application programs and data, A current DB 152 for collecting and managing current data to be monitored, such as weather information and weather information from a plurality of independent PMSs, a dashboard and a real-time information providing data management server 152, A historical DB 153 for collecting and storing various detailed data such as demand information and development information from a plurality of independent PMSs constituting the system, and storing and managing the detailed data, and various statistics A statistics DB 154 for managing information, goal management information and energy efficiency information, A forecasting DB 155 for managing various kinds of analysis information such as demand and power generation prediction information and economic efficiency generated from the platform as a control operation system, schedule information for each operation mode generated by the platform, which is an integrated control operating system, A Schedule DB 156 for managing the schedule information and the like, and the like.

The pre-management system 200 may be configured to reduce the load on the micro-grid EMS platform 100, as well as to reduce the load on the micro-grid EMS platform 100, (PMS) having a plurality of power management systems (PMS).

The proactive management system 200 monitors the power generation and storage systems, including PV, CHP, ESS, and FC, associated with the platform 100, And an electricity demand PMS 220 for monitoring and managing loads such as heat and electricity in energy facilities measured through an AMI associated with the platform, And environmental PMS 230 for collecting indoor and outdoor environmental data including temperature and humidity, wind direction, wind speed, and solar radiation for use in controlling objects Internet devices and building facilities including the lighting devices and air conditioners connected to the platform do.

At this time, the dictionary management system 200 is connected to a power generation system and storage system such as PV, CHP, ESS, and FC, and a remote meter reading infrastructure (AMI ), Various sensors and object Internet devices, and wireless communication modules such as LTE and Wi-Fi.

The distributed processing engine 300 distributes data inputted from a plurality of independent power management systems (PMS) 210, 220 and 230 constituting the dictionary management system 200 according to each function and performs database processing .

An optimal control method using the optimum control system of the solar energy generation system according to the present invention having the above-described structure will be described with reference to FIG.

S1 collects various information for use in the integrated control and management of various energy generation systems and object Internet devices and sensors interlocked with the micro grid EMS platform, which is an integrated control and operation system.

That is, from the electric production PMS constituting the dictionary management system, generation information and storage information about power generation system and storage system including PV, CHP, ESS, Collects information, collects load measurement information of energy facilities from the electricity demand PMS through the remote meter reading infrastructure (AMI), and compares the temperature, humidity, wind direction, wind speed , And solar radiation.

At this time, the proactive management system is connected to the electricity generation system (PV), CHP, energy storage system (ESS), fuel cell (FC) And data communication through a wireless communication module such as LTE or Wi-Fi.

(S2) to the distributed processing engine, the various information collected from each independent electric production PMS, electric demand PMS, and environmental PMS constituting the dictionary management system.

In the distributed processing engine, various data collected from the electric production PMS, the electricity demand PMS, and the environment PMS having independent configurations are separately stored in the database unit built in the micro grid EMS platform, which is an integrated control and operation system (S3).

At this time, in the micro grid EMS platform, various information is updated through continuous collection and databaseization of the above data.

In the micro grid EMS platform, a scenario for performing integrated control as well as automatic operation control for various energy facilities connected to the platform is generated using various collected data collected as described above, and an internal command is generated (S4).

At this time, in the micro grid EMS platform, it is possible to perform a stable operation by supporting the integrated control and management of a plurality of energy facilities connected to each independent independent modular unit independently. Thus, the application group We perform program processing such as production forecasting, forecasting, statistical analysis and scheduling generation as well as forecasting of supply and load energy of each energy equipment, and real-time diagnosis and control of operation status of each energy facility.

In the Micro Grid EMS platform, after real-time diagnosis by prediction and analysis of operation state of each energy equipment by collected data, control command is sent to various energy equipment connected through sub-management system for control, (S5).

The terms of the solar power energy generation system and the energy facility described in the present invention have the same meaning and are the same as those of the solar power generation system (CHP), energy storage system (ESS), fuel cell Systems and storage systems, remote meter reading infrastructure (AMI), various sensors, air conditioners and lighting devices, Internet devices, and building facilities.

Accordingly, in the present invention, large data can be generated through data mining using update data collected from various energy facilities, as well as newly generated production forecast, weather forecast, statistical analysis, and scheduling data. , And the big data thus generated can be advantageously utilized for more optimal control and management of the solar energy generation system.

Further, in the present invention, it is possible to perform efficient centralized control and management, balance control of load and power generation amount, and stabilize change of frequency, voltage, current, , And economical and reliable power supply can be realized.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. Modifications or substitutions may be made.

100: Micro Grid EMS Platform 110: System Management Unit
120: Application group section 130: Web service and interface section
140: independent modularization unit 150: database unit
200: Sub-management system 210: Electric production PMS
220: Electricity demand PMS 230: Environment PMS
300: distributed processing engine

Claims (5)

In addition to energy systems that consume heat and electricity, as well as power generation systems and storage systems, including PV, CHP, ESS, and FC, A Micro Grid EMS (Energy Management System) platform to centrally control and manage all of these in a platform-based manner in conjunction with IoT devices and building facilities; A dictionary management system designed to perform a function of each of the micro-grid EMS platforms with a plurality of independent power management systems (PMS) in order to minimize the delay in response speed when controlling the platform; A distributed processing engine for distributing and processing data input from a plurality of independent power management systems constituting the dictionary management system for each function; / RTI >
The microgrid EMS platform comprises:
A system manager for collectively managing and operating the microgrid EMS platform; An application group unit for generating various predictions, statistical analysis, and scheduling, including prediction of supply and load power quantities using a database collected and recorded through a plurality of independent power management systems (PMS); The microgrid EMS platform communicates data through API (Application Programming Interface) between the integrated operation center (TOC) to monitor the central integrated control and management state performed in the micro grid EMS platform, A web service and interface unit for providing a web service for centralized control and management performed by the platform; An independent modulator for performing independent and stable functions of integrated control and management through a modular configuration independent of the microgrid EMS platform; (IoT) collecting information of the energy facilities collected through a plurality of independent power management systems (PMS) for each function, energy management and storage information, central integrated control A database unit for storing management information and for converting the data into big data through data mining; Lt; / RTI >
The independent modulator may include:
An event management module for managing a reference event necessary for performing an operation control for each energy facility associated with the micro grid EMS platform; A Scenario Management Module for managing scenarios for performing automatic operation control on energy facilities associated with the micro grid EMS platform; A command dispatcher module for generating an internal command necessary for performing an operation control for each energy facility associated with the micro grid EMS platform; A Notification Module for notifying operators and consumers of the status and operation status of a plurality of power generation systems and storage systems and energy facilities associated with the micro grid EMS platform, and energy supply and demand; / RTI >
The dictionary management system includes:
An electricity producing PMS for monitoring and controlling power generation systems and storage systems, including PV, CHP, ESS, fuel cells FC, associated with the microgrid EMS platform; An electrical demand PMS for monitoring and managing the load of the energy facilities measured through the remote meter reading infrastructure (AMI) associated with the microgrid EMS platform; An environment PMS for collecting indoor and outdoor environmental data including temperature and humidity, wind direction, wind speed, and solar radiation for use in controlling Internet appliances and building equipment including illumination devices and air conditioners associated with the micro grid EMS platform; And a control system for controlling the power of the solar power generation system. delete delete delete delete

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