CN206908304U - A kind of intelligent micro-grid energy-storage system - Google Patents

A kind of intelligent micro-grid energy-storage system Download PDF

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Publication number
CN206908304U
CN206908304U CN201720498792.9U CN201720498792U CN206908304U CN 206908304 U CN206908304 U CN 206908304U CN 201720498792 U CN201720498792 U CN 201720498792U CN 206908304 U CN206908304 U CN 206908304U
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energy
load
storage system
module
storage
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王燕
李志�
原东甲
薛历兴
王登海
白平
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Huizhou Bo Lei Da Amperex Technology Ltd
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Huizhou Bo Lei Da Amperex Technology 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
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers
    • 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
    • Y02E70/00Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30Systems combining energy storage with energy generation of non-fossil origin

Abstract

A kind of intelligent micro-grid energy-storage system is the utility model is related to, belongs to micro-capacitance sensor technical field of energy storage.The intelligent micro-grid energy-storage system includes energy-storage system and load system, central control system and information processing system, and energy-storage system includes lithium titanate battery module, battery management system;The intelligent micro-grid energy-storage system also includes photovoltaic generating system and the power network frequency conversion system being connected with photovoltaic generating system;The power network frequency conversion system includes transformer, Anti-reflux controller, the grid-connection cabinet being sequentially connected;The central control system includes power prediction module, load prediction module, and the load system includes the dsm unit being connected with central control system.Intelligent micro-grid energy-storage system of the present utility model can improve equipment operating efficiency and the utilization ratio to electric energy, be easy to central control system to carry out intelligent optimization and adjustment to whole energy-storage system according to load system and energy-storage system, the operation conditions of power network frequency conversion system.

Description

A kind of intelligent micro-grid energy-storage system
Technical field
A kind of intelligent micro-grid energy-storage system is the utility model is related to, belongs to micro-capacitance sensor technical field of energy storage.
Background technology
With the fast development of New Energy Industry, distributed power generation has become the useful supplement of power network.Distribution hair Electricity tends to utilize regenerative resource, such as wind energy, solar energy.Micro-capacitance sensor technology is a kind of novel energy-storing technology, can be passed through The small distribution subnet of distributed power generation, energy-storage system and local load composition.Micro-grid system by distributed power generation and Transmission & distribution power technology, an other solution route is provided for the access of renewable energy power generation, realizes that advantage is mutual with current power network Mend the economy and environmental benefit improved.And micro-capacitance sensor intelligent central control system is the core of micro-capacitance sensor, to whole micro-capacitance sensor Running, state, real time data are monitored, and are controlled in real time according to actual conditions or control strategy automatic realizing system, It is safe and stable, reliable, Effec-tive Function the basis of micro-grid system.
Contain a variety of electric loads in micro-capacitance sensor, system is according to these electric load significance levels and power supply reliability It is required that it is classified.Also include the relay protection dress protected to bus, switch, transmission line of electricity, electrical equipment in micro-capacitance sensor Put, and its contactor, static switch, switch, disconnecting link are combined with control section, form the execution of microgrid energy management and control A part for unit.Micro-capacitance sensor central control system is the control core of micro-grid system, its stable operation and intellectuality, will Be largely fixed whole system whether stability, safe and efficient operation.Information management system is also to micro-capacitance sensor simultaneously Storage, analysis, early warning and its transmission of information play an important role, and have influence on whether efficient micro-capacitance sensor, fast express agency and Its whether convenient control management.
Publication No. CN104283308A patent of invention discloses a kind of micro-capacitance sensor Intelligent central policy controlling system, bag Micro-capacitance sensor electrical system and micro-capacitance sensor policy controlling system are included, micro-capacitance sensor electrical system includes distributed generation unit, energy storage list Member, environmental monitoring unit, simulation load cell, actual load unit, grid cell, central policy control unit, micro- electricity Net policy controlling system includes information acquisition unit and central control processing unit.But above-mentioned micro-capacitance sensor Intelligent central strategy Informational linkage in control system between distributed generation unit, energy-storage units and load cell is not abundant enough, can not tackle multiple Miscellaneous electricity consumption situation carries out in good time optimize and revise.
Utility model content
The utility model provides a kind of intelligent micro-grid energy-storage system, and to solve, micro-capacitance sensor can not be to complexity in the prior art The problem of electricity consumption situation is optimized and revised in good time.
Technical scheme is as follows used by the utility model solves above-mentioned technical problem:
A kind of intelligent micro-grid energy-storage system, including energy-storage system and the load system that is connected with energy-storage system, with storage The central control system and information processing system that energy system is connected with load system, energy-storage system include lithium titanate battery mould Block, battery management system;
The intelligent micro-grid energy-storage system also includes photovoltaic generating system and the power network being connected with photovoltaic generating system Frequency conversion system, power network frequency conversion system are connected with energy-storage system, central control system, information processing system;The power network frequency conversion System includes transformer, Anti-reflux controller, the grid-connection cabinet being sequentially connected;
The central control system includes power prediction module and load prediction module, and the load system includes Demand-side Administrative unit.
The lithium titanate module includes more than two lithium titanate battery groups and one-to-one with lithium titanate battery group Charger, in addition to the energy storage controller being connected with lithium titanate battery group and charger.
Man-machine interactive system is connected with energy storage controller, man-machine interactive system includes that the operation of control parameter can be inputted Display screen.
Energy-storage system also includes the inverter being connected with load system.
Central control system includes management control module and the power prediction module being connected with management control module, load Prediction module, presence detection module, prompting module, power prediction module are connected with power network frequency conversion system, load prediction mould Block is connected with load system, and prompting module is connected with dsm unit.
Information processing system includes cloud computing center, predicting unit and environmental monitoring processing unit, cloud computing center, prediction Unit and environmental monitoring processing unit are connected with the management control module in central control system.
Grid-connection cabinet includes the low all oscillation and splitting protections of directional over-current protection module, electric current time limit fast tripping protection module, low pressure Module, synchronous loss of synchronism protection module.
The load system also includes warning system, the load controller being connected with load unit, the load controller It is connected with warning system, dsm unit.
The warning system include be used for corresponding load unit is monitored temperature sensor, humidity sensor, Smoke detectors.
Intelligent micro-grid energy-storage system of the present utility model includes energy-storage system, load system, with energy-storage system and load The connected central control system of system;Also include photovoltaic generating system and the power network frequency conversion system being connected with photovoltaic generating system System, central control system include power prediction module and load prediction module, and load system includes dsm unit.Negative Dsm unit is set in loading system(DSM), and be connected with central control system, can be according to program be set, in time The startup and stopping of load unit are reminded, the operation conditions of load and the electricity needs of load system etc., improves equipment operation Efficiency and the utilization ratio to electric energy, it is easy to central control system according to load system and energy-storage system, power network frequency conversion system Operation conditions carries out intelligent optimization and adjustment to whole energy-storage system.
In addition, intelligent micro-grid energy-storage system of the present utility model can realize to micro-capacitance sensor generating equipment, electrical equipment, Power quality three integrally controls, coordinate with optimization, including intermittent energy source generation schedule, load electricity consumption plan, spatial load forecasting, Energy storage etc., system emergency power consumption control, automatically simultaneously/off-network switching control, anti-reverse flow control, peak load shifting, time shift can be realized Etc. function.
Brief description of the drawings
Fig. 1 is the structural representation of intelligent micro-grid energy-storage system of the present utility model.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model solves are easier to understand, tie below The drawings and the specific embodiments are closed the utility model is described in detail.
As shown in figure 1, intelligent micro-grid energy-storage system of the present utility model includes load system, the energy storage system being sequentially connected System, power network frequency conversion system and photovoltaic generating system, in addition to central control system and information processing system, center management system with Load system, energy-storage system, power network frequency conversion system, information processing system are connected, information processing system and load system, energy storage System, power network frequency conversion system are connected.Power network frequency conversion system is also connected with load system.
Energy-storage system includes lithium titanate battery module and the battery management system being connected with lithium titanate battery module, also wraps The energy storage controller being connected with lithium titanate battery module and battery management system is included, man-machine interaction system is connected with energy storage controller System.Battery management system and energy storage controller are connected with central control system.
Lithium titanate battery module is linked together by multigroup 48V/100A lithium titanate battery group by connection in series-parallel, each A charger is connected with lithium titanate battery group, for being charged to battery pack.Each battery pack is and battery management System and energy storage controller are connected, and each charger is also connected with energy storage controller.Energy storage controller can control charger With the connection and disconnection of battery pack, and the length in charging interval.Because the parameter of single battery group in itself may be different, Energy storage controller can control the single charger of charging module to be charged respectively to corresponding single battery group, can guarantee that every The energy stores of individual battery pack reach maximization and optimized, while extend the service life of battery pack.This charging modes The external input voltage of lithium titanate battery module can also be made to keep stable, it also avoid caused whole during single battery group penalty Individual performance of battery module is unbalanced and influences the life-span.
The man-machine interactive system connected on energy storage controller includes single-chip microcomputer, processor and touch operation display screen.Metatitanic acid The parameters of lithium battery group can show that the operation interface set on operating display can also be entered for user on a display screen Row operation, such as sets charge parameter.
One end that energy-storage system is connected with load system is provided with inverter, direct current is converted into alternating current.
Load system includes load unit, and load unit is conventional household electrical appliance, including air-conditioning, water heater, illumination system System.Load system also includes warning system, load controller and the dsm unit being connected with load unit.Warning system Including the temperature sensor, humidity sensor, smoke detectors being arranged on load unit, these sensors control with center System and load controller are connected.Load system also includes dsm unit, and dsm unit includes acquisition module And control module.Acquisition module carries out real-time data acquisition to the electric instrument equipment of user side, including electric current, voltage, electric energy, Power, electric power quality etc..Control module is handled the data that these are collected, and is sent to central control system and information Processing system.And power quality and electricity consumption reliability are controlled to realize by policy control by central control system, such as Instantaneous load, power quality etc..Dsm unit can also control the access opportunity of photovoltaic generating system and load system, Improve the electricity consumption reliability and stability of user side.
Power network frequency conversion system includes transformer, Anti-reflux controller, the grid-connection cabinet being sequentially connected, transformer and photovoltaic generation System is connected, and grid-connection cabinet is connected with energy-storage system, while is connected with the dsm unit in load system.Anti-reverse flow control Device and grid-connection cabinet are connected with central control system simultaneously.Grid-connection cabinet includes directional over-current protection module, electric current time limit fast tripping protection The low all oscillation and splitting protection modules of module, low pressure, synchronous loss of synchronism protection module.
Central control system includes power prediction module, load prediction module, presence detection module, anti-reverse flow control Module, management control module, emergent control module and prompting module.Power prediction module is connected with power network frequency conversion system, to The parameter of photovoltaic generating system and power network frequency conversion system is acquired and Treatment Analysis, and photovoltaic generating system and power network are become The electrical power that display system can export is made prediction.Load prediction module is connected with load system, to the ginseng to load unit Number is acquired and Treatment Analysis, and the power of load is made prediction.The battery of presence detection module and energy-storage system Management system is connected, and the operational factor of energy-storage system is acquired and handled.Anti-reverse flow control module and power network frequency conversion system In Anti-reflux controller be connected, to control the running status of Anti-reflux controller.Management control module includes management and controlled Device, and be connected with power network frequency conversion system, energy-storage system, load system and information management system, and and center control system Power prediction module, load prediction module, presence detection module, anti-reverse flow control module and emergent control module in system It is connected with prompting module.Management control module is also connected with information processing system, with the information provided according to information processing system Make corresponding control.Emergent control module is connected with the warning system in load system, is receiving what warning system was sent After signal, control instruction, cut-off parts or complete can be sent to the load controller of load system by management control module The connection of section load unit and circuit.Prompting module is connected with the dsm unit in load system, in dsm When the information that unit is sent shows that voltage, electric current or the other specification in load system reach certain setup parameter, by prompting mould Block management control module controls to adjust the annexation between load system and power network frequency conversion system, energy-storage system and external power grid, The normal electricity consumption of proof load system.
Information processing system includes cloud computing center, predicting unit, environmental monitoring processing unit, collecting unit, its medium cloud Calculating center is Cloud Server.Cloud Server, predicting unit, environmental monitoring processing unit, collecting unit are with center control Management control module in system is connected.Cloud Server includes data acquisition module, data memory module, data analysis module, energy Information and the instruction that load system, energy-storage system, power network frequency conversion system and central control system are sent enough are stored, and to these letters Breath carries out Treatment Analysis.Data Management Analysis module carries out long-term statistics, Treatment Analysis to the information in data memory module, Then it can be determined suitably to use power mode according to historical data, and realize intellectualized operation.Predicting unit can be according to energy consumption Following electricity consumption situation of historical data prediction.And automatic intelligent control and management are realized by central control system.
Energy-storage system and load system are all connected with external power grid, low power consumption period or other need store electric energy when Electric main is filled with battery pack, electric energy is temporarily stored within energy-storage system by phase, central control system control charhing unit, Electricity peak period or other desired time discharge, and allow user selectively to obtain electric energy from power network, solve electric energy The problem of unbalanced supply-demand, as effective supplement of power network, serve the effect of peak load shifting.In addition, user can be in electricity price Electric energy is stored when relatively low, is powered when electricity price is higher by inverter to loading section or all, effectively reduces electric cost. Photovoltaic generation is input in grid-connection cabinet by the transformer in power network frequency conversion system, Anti-reflux controller, is input to metatitanic acid afterwards Charged in lithium battery module, at the same at night electricity consumption trough when, power network also charges to energy-storage system, and with photovoltaic send out One piece of electric power caused by electricity collects carry out power energy storage, latter piece load unit is powered, electric power is input to load The electrical equipment such as air-conditioning, water heater in system are powered.
Central control system also includes wireless module, can realize the communication with mobile terminal.And detected with intelligent communication Technology, cloud computing, passage hot backup redundancy technology combine, ensure communication stability, reliability, improve its equipment power consumption efficiency and It reduces electric cost.Simultaneously cloud computing and its dsm unit can also be utilized to implement monitoring equipment operation conditions.
In another embodiment of intelligent micro-grid energy-storage system of the present utility model, it is not provided with central control system Presence detection module and prompting module.Presence detection module and/or prompting module can also be arranged at information In reason system.
In another embodiment of intelligent micro-grid energy-storage system of the present utility model, information processing system is only by cloud meter Calculation center is formed, not including predicting unit and environmental monitoring unit.
In another embodiment of intelligent micro-grid energy-storage system of the present utility model, the institute in lithium titanate battery module There is battery pack that one charger is only set.Or charger can also be not provided with, and it is directly whole on energy-storage system by being arranged on Device is flowed to charge to battery pack.
In another embodiment of intelligent micro-grid energy-storage system of the present utility model, people is not provided with energy storage controller Machine interactive system.
In another embodiment of intelligent micro-grid energy-storage system of the present utility model, it is not provided with and bears in load system The connected warning system of carrier unit and/or load controller.Temperature sensor, humidity sensor, smoke detectors can also have It is selectively disposed in load system.
Above example is only illustrating the technical solution of the utility model, rather than the limit to scope of protection of the utility model System, although being described in detail with reference to preferred embodiment to the utility model, it will be understood by those within the art that, The technical solution of the utility model can be modified or equivalent substitution, without departing from the reality of technical solutions of the utility model Matter and scope.

Claims (7)

1. a kind of intelligent micro-grid energy-storage system, including energy-storage system and the load system that is connected with energy-storage system, with energy storage The central control system and information processing system that system is connected with load system, it is characterised in that energy-storage system includes metatitanic acid Lithium battery module, battery management system;
The intelligent micro-grid energy-storage system also includes photovoltaic generating system and the power network frequency conversion being connected with photovoltaic generating system System, power network frequency conversion system are connected with energy-storage system, central control system, information processing system;The power network frequency conversion system Including transformer, Anti-reflux controller, the grid-connection cabinet being sequentially connected;
The central control system includes power prediction module, load prediction module, and the load system includes controlling with center The connected dsm unit of system.
2. intelligent micro-grid energy-storage system as claimed in claim 1, it is characterised in that central control system also includes management control Molding block and the presence detection module being connected with management control module, prompting module, the power prediction module, load Prediction module is also connected with management control module, and the power prediction module is connected with the power network frequency conversion system, the load Prediction module is connected with the load system, and the prompting module is connected with the dsm unit.
3. intelligent micro-grid energy-storage system as claimed in claim 1, it is characterised in that described information processing system includes cloud meter Calculation center, predicting unit and environmental monitoring processing unit, the cloud computing center, predicting unit and environmental monitoring processing unit are equal It is connected with the management control module in the central control system.
4. intelligent micro-grid energy-storage system as claimed in claim 1, it is characterised in that the lithium titanate battery module includes two It is individual more than lithium titanate battery group and with the one-to-one charger of lithium titanate battery group, in addition to lithium titanate battery group and The connected energy storage controller of charger.
5. intelligent micro-grid energy-storage system as claimed in claim 4, it is characterised in that connect someone on the energy storage controller Machine interactive system, man-machine interactive system include that the operating display of control parameter can be inputted.
6. the intelligent micro-grid energy-storage system as described in claim any one of 1-5, it is characterised in that the load system also wraps Include the warning system being connected with load unit, load controller, the load controller and warning system, dsm unit It is connected.
7. intelligent micro-grid energy-storage system as claimed in claim 6, it is characterised in that the warning system includes being used for right Temperature sensor that the load unit answered is monitored, humidity sensor, smoke detectors.
CN201720498792.9U 2017-05-08 2017-05-08 A kind of intelligent micro-grid energy-storage system Active CN206908304U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108879676A (en) * 2018-08-29 2018-11-23 新智能源系统控制有限责任公司 A kind of sale of electricity control system
CN110212560A (en) * 2019-06-27 2019-09-06 上海电机学院 Based on the hot energy storage control device of long-range control photovoltaic power generation common network counterflow-preventing and method
TWI672575B (en) * 2018-11-30 2019-09-21 旭隼科技股份有限公司 High frequency bi-direction solar invertor energy storage system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108879676A (en) * 2018-08-29 2018-11-23 新智能源系统控制有限责任公司 A kind of sale of electricity control system
CN108879676B (en) * 2018-08-29 2020-10-09 新智能源系统控制有限责任公司 Electricity selling control system
TWI672575B (en) * 2018-11-30 2019-09-21 旭隼科技股份有限公司 High frequency bi-direction solar invertor energy storage system
CN110212560A (en) * 2019-06-27 2019-09-06 上海电机学院 Based on the hot energy storage control device of long-range control photovoltaic power generation common network counterflow-preventing and method

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