CN105048457B - A kind of intelligent micro-grid electric energy management system - Google Patents

A kind of intelligent micro-grid electric energy management system Download PDF

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CN105048457B
CN105048457B CN201510506290.1A CN201510506290A CN105048457B CN 105048457 B CN105048457 B CN 105048457B CN 201510506290 A CN201510506290 A CN 201510506290A CN 105048457 B CN105048457 B CN 105048457B
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data acquisition
energy
storage
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CN105048457A (en
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吕峰
荆书典
李玉全
王伟
李秀波
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JINAN DALU ELECTROMECHANICAL CO Ltd
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JINAN DALU ELECTROMECHANICAL CO Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70Smart grids as climate change mitigation technology in the energy generation sector
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/12Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation

Abstract

The present invention relates to a kind of energy management systems, and in particular to a kind of intelligent micro-grid energy management system based on real-time data acquisition;Including data acquisition unit, data storage cell, energy predicting unit three-decker, wherein data acquisition unit is connected with data storage cell, wherein data storage cell is connected with energy predicting unit, wherein collected status data and implementation environment factor data are transmitted to data storage cell by data acquisition unit, and data are carried out storage and are transmitted to energy predicting unit by data storage cell;The present invention is transmitted to intelligent micro-grid Dispatching Control System by carrying out the data of monitoring to real-time data acquisition after founding mathematical models, and come architecture system by the way of layering, whole system is divided into different logical blocks, system function has been refined, the cost of system development and maintenance is greatly reduced.

Description

A kind of intelligent micro-grid electric energy management system
Technical field
The present invention relates to a kind of energy management systems, and in particular to a kind of intelligent micro-grid energy based on real-time data acquisition Management system.
Background technology
Since the 21th century, with the continuous decline of the resource reserves such as oil, coal, the worldwide energy supplies Constant tension is answered, developing and using the regenerative resource of clean and effective becomes the main outlet for solving the problems, such as future source of energy.It answers at present Include solar energy, wind energy, fuel cell etc. with relatively broad several new energy, is distributed generation resource(Distributed Energy Resources, DER), some corresponding generation technologies are known as distributed generation technology (DistributedGeneration, DG).Distributed generation technology is combined with bulk power grid, is learned by many experts both at home and abroad Person is considered the major way for reducing energy consumption, improving power system security and flexibility, but distributed generation technology is to big electricity The influence of net is a major issue having to take into account that.In order to make full use of economic effect caused by distributed power generation Benefit, while reliability is improved, and reduce its impact to major network, micro-capacitance sensor to the greatest extent(microgrid)Concept be proposed out.
Micro-capacitance sensor is the independent dispersion system of scale is smaller, using a large amount of modern electric technology, by gas turbine, wind Electricity, photovoltaic generation, fuel cell and energy storage device etc. merge, and are directly connected on user side.For bulk power grid, micro- electricity Net can be considered as a controllable in power grid, it can be acted within the several seconds to meet the need of external transmission and distribution networks It asks;On the other hand, micro-capacitance sensor can also meet the particular demands of user, such as improve local reliability, keep local voltage stabilization, is logical It crosses and improves energy utilization efficiency using waste heat and uninterruptible power supply is provided etc..Micro-capacitance sensor and bulk power grid pass through energy exchange, the two It is spare each other, to greatly improve power supply reliability.
Micro-capacitance sensor has the advantages that diversification of intelligent, flexibility, environmental protection and energy utilization, is bound to that future will be become The important development direction of power grid.The energy includes photovoltaic generation, wind-power electricity generation, biomass power generation, fuel gas generation in intelligent micro-grid Deng due to the fluctuation of its distributed nature and the energy itself, so intelligent micro-grid electric energy management system is needed to carry out unification Coordinate and manages.
Invention content
The present invention provides a kind of intelligent micro-grid electric energy management systems, are connected with intelligent micro-grid Dispatching Control System Will, by carrying out the data of monitoring to real-time data acquisition intelligent micro-grid scheduling controlling is transmitted to after founding mathematical models System, and whole system is divided into different logical blocks, has refined system function, greatly come architecture system by the way of layering The big cost for reducing system development and maintenance.
It is specific technical solution below:A kind of intelligent micro-grid electric energy management system, including data acquisition unit, data are deposited Storage unit, energy predicting unit three-decker, wherein data acquisition unit are connected with data storage cell, and wherein data store Unit is connected with energy predicting unit, and wherein data acquisition unit is by collected status data and implementation environment factor data It is transmitted to data storage cell, data are carried out storage and are transmitted to energy predicting unit by data storage cell.
Wherein energy predicting unit includes power generation prediction module, electro-load forecast module and power supply and energy-storage module.
Wherein data acquisition unit includes the power generation data acquisition module being connect respectively with data storage cell, power load Data acquisition module, grid-connected data monitoring module, energy-storage system operating status module, environmental data collecting module;Wherein generate electricity Data acquisition module includes generating set and flourishing data acquisition server, and wherein generating set is connected with data acquisition equipment, number It is connected with power generation data acquisition server according to collecting device, hair electric data collecting pair weapon is connected with data memory module; Wherein generating set includes wind power generating set, photovoltaic generation unit, Biogas Generator Set, natural gas power unit;Power load Data acquisition module includes sequentially connected energy equipment, data acquisition equipment, electricity consumption data acquisition server and data storage Module;Include wherein one two level summary table of enterprise, corporate boss's energy equipment, resident's summary table, communal facility use with energy equipment Electric summary table and other summary tables;Environmental data collecting module includes sequentially connected monitoring station, data acquisition equipment, environmental data Acquisition server and data memory module further include the weather forecast module being individually connected with environmental data collecting server, Wherein monitoring station includes weather monitoring website, illumination monitoring station, water level monitoring website, rainfall monitoring website.
Wherein data storage cell includes real time data processing module and energy management data center, wherein at real time data Reason module is unidirectionally connect with energy management data module, and wherein energy predicting unit is pre- including power generation prediction module, power load Survey module and power supply and energy-storage module.
Further, generate electricity data acquisition module, power load data acquisition module, grid-connected data monitoring module, energy storage System running state module, environmental data collecting module are connected with real time data processing module respectively.
Further, energy management data center respectively with power generation prediction module, electro-load forecast module, power supply and storage Energy prediction module is connected.
Advantageous effect:The present invention to real-time data acquisition by by the data of monitoring transmit after founding mathematical models To intelligent micro-grid Dispatching Control System, and whole system is divided into different logics come architecture system by the way of layering Block has refined system function, greatly reduces the cost of system development and maintenance, and because the structure of layering makes system have Flexible scalability and retractility, and under the coordinated scheduling of microgrid Communities ' Integrated Energy Management System, becoming one has The entirety of machine.
Description of the drawings
Fig. 1 is present invention management system structure diagram.
Fig. 2 is the structure diagram of the power generation data acquisition module in management system of the present invention.
Fig. 3 is the structure diagram of the electricity consumption data acquisition module in management system of the present invention.
Fig. 4 is the structure diagram of the environmental data collecting module in management system of the present invention.
Specific implementation mode
A kind of intelligent micro-grid electric energy management system, including data acquisition unit, data storage cell, energy predicting unit Three-decker, wherein data acquisition unit are connected with data storage cell, wherein data storage cell and energy predicting unit It is connected, wherein collected status data and implementation environment factor data are transmitted to data storage list by data acquisition unit Data are carried out storage and are transmitted to energy predicting unit by member, data storage cell.
Wherein data acquisition unit includes the power generation data acquisition module being connect respectively with data storage cell, power load Data acquisition module, grid-connected data monitoring module, energy-storage system operating status module, environmental data collecting module;Wherein generate electricity Data acquisition module includes generating set and flourishing data acquisition server, and wherein generating set is connected with data acquisition equipment, number It is connected with power generation data acquisition server according to collecting device, hair electric data collecting pair weapon is connected with data memory module; Wherein generating set includes wind power generating set, photovoltaic generation unit, Biogas Generator Set, natural gas power unit;Power load Data acquisition module includes sequentially connected energy equipment, data acquisition equipment, electricity consumption data acquisition server and data storage Module;Include wherein one two level summary table of enterprise, corporate boss's energy equipment, resident's summary table, communal facility use with energy equipment Electric summary table and other summary tables;Environmental data collecting module includes sequentially connected monitoring station, data acquisition equipment, environmental data Acquisition server and data memory module further include the weather forecast module being individually connected with environmental data collecting server, Wherein monitoring station includes weather monitoring website, illumination monitoring station, water level monitoring website, rainfall monitoring website.
Wherein data storage cell includes real time data processing module and energy management data center, wherein at real time data Reason module is unidirectionally connect with energy management data module, and wherein energy predicting unit is pre- including power generation prediction module, power load Survey module and power supply and energy-storage module.
Further, generate electricity data acquisition module, power load data acquisition module, grid-connected data monitoring module, energy storage System running state module, environmental data collecting module are connected with real time data processing module respectively.
Wherein energy predicting unit includes power generation prediction module, electro-load forecast module and power supply and energy-storage module.
Further, energy management data center respectively with power generation prediction module, electro-load forecast module, power supply and storage Energy prediction module is connected.
The invention will be further described with reference to the accompanying drawings of the specification.
By Fig. 1, data acquisition unit major function be acquire smart micro-grid system in key link status data and Implementation environment factor data;Data acquisition unit includes power generation data acquisition module, grid-connected data monitoring module, power load number According to five acquisition module, energy-storage system operating status module, environmental data collecting module submodules.
Wherein power generation data acquisition module is the module for being acquired the power generation data of each generating set, and network data is supervised To survey module, which be the module being monitored to the data after grid-connected, power load data acquisition module, is carried out to electricity consumption review data Module, the energy-storage system operating status module of acquisition are mainly installed on each energy storage website, data source in intelligent micro-grid Energy storage station point control system, monitoring information system or sensing equipment, main gathered data include energy storage website operating status number According to, charge and discharge information data, power budget data, power quality data etc., and by institute's gathered data be transferred to storage unit into The module of row processing;Environmental data collecting module is the module being acquired to ambient enviroment.
Data acquisition unit can use RS485/RS232, CAN/LonWorks fieldbus, Ethernet/INTERNET Equal multiple communication interfaces, and support MODBUS-RTU/TCP/ASCII, IEC60870-5-101/102/103/104, DNP03.0, The Standards Codes such as CDT.Data transmission procedure meets electric power secondary system security protection requirement, and uses transmission encryption/solution secret skill Art, the safety of data and integrality to ensure.
Data storage element major function is the real time data for receiving data acquisition unit and sending, and carries out dissection process simultaneously To energy management data center transmission data and store instruction.The communication that data storage cell is used according to each data acquisition module Interface and communication protocol carry out real time data parsing, according to the data format of " timestamp-measuring point name-value " to energy after data parsing Buret manages data center's transmission data and store instruction.Energy management data center major function is that data store and classify remittance Always, data class is divided into real time data and historical data, and Database Systems are divided into real-time data base and relational database, in real time number According to the real time data of all collection points of library storage, relational database be divided into for system state data library, energy summarize database and Backup database;Relational database is processed data, calculates and classifies and deposits on the basis of real time data according to processing logic Storage, for data analysis, inquiry, prediction and Report Forms Service etc..Data processing and distribution are the cores of this platform, are adopted according to history Every single user's data of power generation, electricity consumption and the energy storage of collection distribute electricity consumption and this society of operation of each unit users automatically The utilization of the regenerative resource in area distributes electricity, temporarily by control system according to hour electricity consumption according to electricity consumption priority Electricity consumption user is increased considerably individually to apply to community microgrid Operation Centre.This module provides basic data for energy digitlization.
Energy predicting unit includes three power generation prediction model, power consumption prediction model, power supply and energy storage prediction model predictions Model.Three models are really to be closely related, and power generation prediction model can be different according to generating set type, according to being acquired Influence factor supplemental characteristic and changing rule predict the following generated energy data, can basis such as wind power generating set Real-time wind speed, wind direction, local climate history data, data of weather forecast etc. establish wind-power electricity generation prediction model, predict future 1-3 Daily generation data;It can be set according to real-time lighting data, long-range weather forecast data combination photovoltaic for photovoltaic generation unit Standby installation data establishes photovoltaic generation prediction model, predicts the following generated energy.Meanwhile the prediction module that generates electricity can be negative according to electricity consumption Lotus prediction model predicts the following power load data, to predict the data such as the following generating set operating load.Power load is pre- Model is surveyed, major function is that electrical equipment history electricity consumption data establishes analysis model based on real-time power load data, in advance Survey power load.The foundation of model is based on a large amount of electricity consumption historical datas, and data include that intelligent micro-grid overlay area is integrally used Electricity historical data, resident's electricity consumption historical data, electricity consumption enterprise totality electricity consumption historical data are main real with energy equipment When operating status and history electricity consumption data etc., user power utilization custom, equipment running status and electricity consumption are analyzed from these data Trend, region electricity consumption and environmental impact factor, power load and time relationship etc., establish electro-load forecast model, and root According to power generation prediction model prediction data and energy storage prediction model prediction data, the data such as the following power load are predicted.Power supply and storage Energy prediction model, according to the operating status of energy storage website, energy storage capacity, time-of-use tariffs data, in conjunction with generated energy prediction data and use Electric load prediction data, establish energy storage with power supply prediction model, prediction process will fully consider intelligent micro-grid economical operation at This, peak period is arranged in by power-on time as possible, and the electric time will be taken to be arranged in the valley period to main power grid.Power generation prediction mould Type, electro-load forecast model and power supply will be conveyed to intelligent micro-grid scheduling controlling system with energy storage prediction model institute prediction data System, is carried out being uniformly coordinated scheduling according to prediction data by it to entire micro-capacitance sensor equipment.
By Fig. 2, power generation data acquisition module includes generating set and power generation data acquisition server, wherein generating set and data Collecting device is connected, and data acquisition equipment is connected with power generation data acquisition server, and generate electricity data acquisition server and number It is connected according to memory module;Wherein generating set includes wind power generating set, photovoltaic generation unit, Biogas Generator Set, natural gas Generating set.Each generating set institute gathered data includes operating states of the units data, generated energy data, power generating quality data, machine Group fault information data, start and stop status data etc., data source can be SCADA system, on-line monitoring system or other in real time Monitoring system or sensor, data acquisition equipment are connect with data source, data acquisition equipment and power generation data acquisition server Connection sends gathered data by power generation data acquisition server and instructs and receive the gathered data sent by data acquisition equipment, Institute's gathered data is transferred to data storage cell and is handled.
By Fig. 3, block does not include sequentially connected energy equipment, data acquisition equipment, electricity consumption number to the acquisition of power load data According to acquisition server and data memory module;Wherein include one two level summary table of enterprise with energy equipment, corporate boss uses can equipment, residence Civilian family summary table, communal facility electricity consumption summary table and other summary tables.This module acquisition data include active power, reactive power, Power factor, voltage, electric current, frequency, harmonic wave, accumulative electric energy, electricity using at the peak time data etc.;Data source can be SCADA system, Line monitoring system, secondary measurement instrument etc., and connect with data acquisition equipment, data acquisition equipment is acquired with power load data Server connects, and is sent by data acquisition equipment by power load data acquisition server transmission data acquisition instructions and reception Gathered data, institute's gathered data are transferred to storage unit and are handled.
By Fig. 4, environmental data collecting module includes that sequentially connected monitoring station, data acquisition equipment, environmental data are adopted Collect server and data memory module, further include the weather forecast module being individually connected with environmental data collecting server, Middle monitoring station includes weather monitoring website, illumination monitoring station, water level monitoring website, rainfall monitoring website.This module is main Function is acquisition real time environment factor data, and collecting device is distributed in intelligent micro-grid institute overlay area, according to generating set kind Different acquisition equipment is arranged in class, for example, the weather monitoring devices such as wind speed, wind direction are arranged near wind power generating set, in photovoltaic Generating equipment region is arranged the monitoring devices such as illumination, humidity, temperature, rainfall, water level, air pressure etc. is arranged in micro-capacitance sensor overlay area Monitoring device;The data of weather forecast that acquisition terminal acquires Central Meteorological Observatory's publication by network is set simultaneously.Institute's gathered data Storage unit is transferred to be handled.

Claims (8)

1. a kind of intelligent micro-grid electric energy management system, be connected with intelligent micro-grid Dispatching Control System by the data of monitoring into It is transmitted to intelligent micro-grid Dispatching Control System after row founding mathematical models, which is characterized in that including data acquisition unit, number According to storage unit, energy predicting unit three-decker, wherein data acquisition unit is connected with data storage cell, wherein data Storage unit is connected with energy predicting unit, and wherein data acquisition unit is by collected status data and real time environment factor Data are carried out storage and are transmitted to energy predicting unit by data transmission to data storage cell, data storage cell;The number Include real time data processing module and energy management data center, wherein real time data processing module and energy pipe according to storage unit Reason data center unidirectionally connects;The real time data processing module carries out real time parsing to data, according to " the time after data parsing The data format of stamp-measuring point name-value " is to energy management data center transmission data and store instruction;The energy management data Center is stored for data and Classifying Sum, data class are divided into real time data and historical data, and data are stored in data base set System, the Database Systems are divided into real-time data base and relational database, and the real-time data base stores the reality of all collection points When data, the relational database is divided into summarizes database and backup database for system state data library, energy;The relationship Database is processed data according to processing logic on the basis of real time data, calculates and classification storage, for data analysis, Inquiry, prediction and Report Forms Service.
2. a kind of intelligent micro-grid electric energy management system according to claim 1, which is characterized in that the data acquisition Unit includes the power generation data acquisition module, power load data acquisition module and netting index being connect respectively with data storage cell According to monitoring modular, energy-storage system operating status module, environmental data collecting module.
3. a kind of intelligent micro-grid electric energy management system according to claim 1, which is characterized in that the energy predicting Unit includes power generation prediction module, electro-load forecast module and power supply and energy-storage module.
4. a kind of intelligent micro-grid electric energy management system according to claim 2, which is characterized in that the power generation data Acquisition module, power load data acquisition module, grid-connected data monitoring module, energy-storage system operating status module, environmental data Acquisition module is connected with real time data processing module respectively.
5. a kind of intelligent micro-grid electric energy management system according to claim 3, which is characterized in that the energy management Data center is connected with power generation prediction module, electro-load forecast module, power supply with energy storage prediction module respectively.
6. a kind of intelligent micro-grid electric energy management system according to claim 2, which is characterized in that the power generation data Acquisition module includes generating set and power generation data acquisition server, and wherein generating set is connected with data acquisition equipment, and data are adopted Collection equipment is connected with power generation data acquisition server, and power generation data acquisition server is connected with data memory module;Wherein Generating set includes wind power generating set, photovoltaic generation unit, Biogas Generator Set, natural gas power unit.
7. a kind of intelligent micro-grid electric energy management system according to claim 2, which is characterized in that the power load Data acquisition module includes sequentially connected energy equipment, data acquisition equipment, electricity consumption data acquisition server and data storage Module;Include wherein one two level summary table of enterprise, corporate boss's energy equipment, resident's summary table, communal facility use with energy equipment Electric summary table and other summary tables.
8. a kind of intelligent micro-grid electric energy management system according to claim 2, which is characterized in that the environmental data Acquisition module includes sequentially connected monitoring station, data acquisition equipment, environmental data collecting server and data memory module, Further include the weather forecast module being individually connected with environmental data collecting server, wherein monitoring station includes weather monitoring station Point, illumination monitoring station, water level monitoring website, rainfall monitoring website.
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Denomination of invention: Electric energy management system of intelligent microgrid

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Denomination of invention: Electric energy management system of intelligent microgrid

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