CN110350560A - A kind of intelligent micro-grid control device - Google Patents
A kind of intelligent micro-grid control device Download PDFInfo
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- CN110350560A CN110350560A CN201910615035.9A CN201910615035A CN110350560A CN 110350560 A CN110350560 A CN 110350560A CN 201910615035 A CN201910615035 A CN 201910615035A CN 110350560 A CN110350560 A CN 110350560A
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- 238000004146 energy storage Methods 0.000 claims abstract description 55
- 238000012806 monitoring device Methods 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims description 26
- 238000010248 power generation Methods 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract description 3
- 238000013178 mathematical model Methods 0.000 abstract 1
- 238000007726 management method Methods 0.000 description 31
- 238000009826 distribution Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/14—Energy storage units
Abstract
The invention discloses a kind of intelligent micro-grid control devices, it is related to electric power network technical field, including distributed generation resource monitoring device, energy storage monitoring device, load monitoring apparatus and electric energy control system, the distributed generation resource monitoring device, energy storage monitoring device, load monitoring apparatus are connect with electric energy control system；The present invention passes through the acquisition to real time data, and the collected data of part carry out data preparation statistics, micro-grid system is scheduled after founding mathematical models, micro-grid system is set to have flexible scalability and retractility, improve micro-grid system ability, maintenance cost is reduced, ensure that the normal orderly function of micro-capacitance sensor.
Description
Technical field
The present invention relates to electric power network technical fields, more particularly to a kind of intelligent micro-grid control device.
Background technique
In today of epoch high speed development, electricity needs is increased rapidly, and load increases, and power department mostly concentrates investment
In the construction of the large size such as thermoelectricity, water power and nuclear power and China and super-pressure remote conveying power grid.But with power grid scale
Continuous expansion, the drawbacks of ultra-large electric system, is also increasingly prominent, at high cost, operation difficulty is big, it is difficult to adapt to user and get over
Come higher security and reliability requirement and diversified power demands.Direction is turned to energy diversification, cleaning, with optimization
Energy resource structure promotes energy strategy to be transformed into target, and the new round energy revolution characterized by clean energy resource and smart grid is just
It promotes in the world.
Distributed power generation has the advantages that the various aspects such as pollute less, high reliablity, energy utilization rate are high, infield is flexible,
Efficiently solve many potential problems of large-scale centralized power grid.Distributed power generation be also referred to as distributing power generation or distributed energy supply, one
As refer to by smaller power generator be distributed across user scene or user near generation mode.Distributed power supply location
Flexibly, fabulous adaptation the characteristics of dispersing dispersion electricity needs and resource distribution, have delayed needed for defeated, power distribution network upgrading
Huge investment, meanwhile, it makes power supply reliability be improved with bulk power grid mutual backup electricity.
Since the energy mainly includes photovoltaic power generation and wind-power electricity generation etc. in intelligent micro-grid, there is distributed nature and fluctuation
Property, it is therefore desirable to control is managed to the electric energy of intelligent micro-grid and is uniformly coordinated, guarantees the normal operation of intelligent micro-grid.
Summary of the invention
The technical problem to be solved by the present invention is to the shortcomings that overcoming the prior art, provides a kind of intelligent micro-grid control
Device.
In order to solve the above technical problems, technical scheme is as follows:
A kind of intelligent micro-grid control device, including distributed generation resource monitoring device, energy storage monitoring device, load monitoring apparatus with
And electric energy control system, the distributed generation resource monitoring device, energy storage monitoring device, load monitoring apparatus with controlling electric energy system
System connection, the distributed monitoring device is for acquiring the current generated output of distributed generation resource, cut-off to current total power generation
Amount, per day generated energy and the realtime power to generate electricity daily, and by collected data information transfer to electric energy control system；
The energy storage monitoring device is used to acquire the maximum storage electricity of energy-storage system, current total storage electricity, currently also chargeable electricity
Amount, maximum discharge power and present discharge power, and by collected data information transfer to electric energy control system；It is described negative
It carries monitoring device to be used to acquire the real-time voltage and electric current loaded, and by collected data information transfer to controlling electric energy system
System；The electric energy control system is used to receive the data information of each monitoring device transmission, is stored and is counted, and according to load
Electricity consumption situation control energy-storage system charge and discharge electrical alternations and adjust energy-storage system discharge power, be also used to switch micro-capacitance sensor
The independent operating state and grid-connected state of system.
Further, distributed monitoring device includes the power generation data acquisition module being connected with generating set in distributed generation resource
Block and the power generation data acquisition server being connected with power generation data acquisition module, power generation data acquisition server and electric energy control
System connection processed.
A kind of preceding intelligent micro-grid control device, energy storage monitoring device include battery core management control layer, battery pack
Administrative unit and battery energy management unit, battery core management control layer is located in energy-storage battery case, for completing to battery case
The data of internal single battery information acquire, and send data to battery set management unit, while according to battery set management list
The instruction of member transmission is completed between the equilibrium single battery core in battery case, and battery set management unit is located at the Main Control Tank of energy-storage system
It is interior, for receiving the data information of battery core management control layer transmission in battery case, and the voltage and current of sampling battery case, carry out
SOC, SOH are calculated and amendment, completes battery case precharge and management of charging and discharging, and send data to battery energy management list
Member, battery energy management unit are located in Main Control Tank, for receiving the data of battery set management unit transmission and carrying out to data
Analysis and processing, are interacted with electric energy control system by dry contact, and by the system data transmission in battery case to electric energy
Control system.
A kind of preceding intelligent micro-grid control device, load monitoring apparatus include adopting with the electricity consumption data of load connection
Collect module, electricity consumption data acquisition module includes one second level summary table of enterprise, resident's summary table and communal facility summary table.
A kind of preceding intelligent micro-grid control device, electric energy control system are EMS Energy Management System.
A kind of intelligent micro-grid control method, comprising the following steps:
S1: setting the system into grid-connected state, and electric energy control system judges whether need according to the state-of-charge of energy-storage system
It to charge to energy-storage battery, and send the generating set of dispatch command to distributed generation resource, control the generated output of generating set；
S2: being adjusted according to the method for operation of the generated output of the operating status of load and generating set to energy-storage system, when
When the power of load is greater than the output power of distributed generation resource, electric energy control system controls energy-storage system and supplements load remainder
Power demand, energy-storage system discharge electric energy；When the power of load is less than the output power of distributed generation resource, distributed generation resource
Meet the operation power of load, and the remaining output power of distributed generation resource charges to energy-storage system；
S3: it when electric energy control system detects electric network fault, controls grid-connected switch and disconnects, while micro-capacitance sensor energy storage inverter is certainly
Dynamic to be switched to independent operating, system voltage is set up in starting in the form of voltage source, passes through the management microgrid power of power supply and load
Dynamic equilibrium；
S4: after electric energy control system detects that network voltage is normal under independent operating state, the operation of micro-capacitance sensor energy storage inverter
Pattern switching is to be incorporated into the power networks, and subsequent electric energy control system is closed grid-connected switch, and system enters the mode that is incorporated into the power networks.
The beneficial effects of the present invention are:
(1) present invention is formed by monitoring in real time to distributed generation resource, load and energy-storage system to entire micro-capacitance sensor system
The real time monitoring for information of uniting, and according to the operation of collected data information scheduling micro-capacitance sensor, ensure that micro-capacitance sensor normally has
Sort run；
(2) present invention is by the acquisition to real time data, and the collected data of part carry out data preparation statistics, establish mathematical modulo
Micro-grid system is scheduled after type, so that micro-grid system is had flexible scalability and retractility, improves micro-capacitance sensor
System capability reduces maintenance cost；
(3) energy-storage battery monitoring device includes battery core management control layer, battery set management unit and energy content of battery pipe in the present invention
Unit is managed, battery core management control layer can be acquired the battery information of energy-storage battery, and complete in battery case between single battery core
Equilibrium；Battery set management unit can acquire the voltage and current of battery case, calculated and corrected, and the charge and discharge of battery case is completed
Fulgurite reason；Battery energy management unit is interacted with electric energy management system；To sum up complete the intelligence pipe to energy-storage system
Reason and control, ensure that the normal operation of energy-storage system, extend its service life.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
It is right below according to specific embodiment and in conjunction with attached drawing to make the contents of the present invention be easier to be clearly understood
The present invention makes further details of explanation.
Present embodiments provide a kind of intelligent micro-grid control device, including distributed generation resource monitoring device, energy storage monitoring
Device, load monitoring apparatus and electric energy control system, distributed generation resource monitoring device, energy storage monitoring device, load monitoring dress
It sets and is connect with electric energy control system.Wherein, electric energy control system is EMS Energy Management System.
Distributed generation resource includes photovoltaic generating system and wind generator system in the present embodiment, and distributed monitoring device includes
The power generation data acquisition module that is connected with photovoltaic generating system and wind generator system and with power generation data acquisition module
The power generation data acquisition server being connected, power generation data acquisition server are connect with electric energy control system.Send out electric data collecting
Module mainly acquires the running state data of generating set, current generated output, cut-off to current total power generation, per day
Generated energy and the realtime power to generate electricity daily etc..Data source can be SCADA system, on-line monitoring system or other in real time
Monitoring system or sensor etc., power generation data acquisition module are connect with data source, and collected data are transmitted to power generation data and adopt
Collect server, and be transmitted in electric energy control system, electric energy control system carries out data to arrange statistics simultaneously after receiving data
Storage.
Energy storage monitoring device includes battery core management control layer, battery set management unit and battery energy management unit, electricity
Core pipe reason control layer is located in the energy-storage battery case of energy-storage system, for completing the data to battery case inside single battery information
Acquisition, and the complete battery pair of instruction for sending data to battery set management unit, while being transmitted according to battery set management unit
Equilibrium in case between single battery core, battery set management unit are located in the Main Control Tank of energy-storage system, electric in battery case for receiving
Core pipe manages the data information of control layer transmission, and the voltage and current of sampling battery case, carries out SOC, SOH and calculates and correct, complete
At battery case precharge and management of charging and discharging, and battery energy management unit is sent data to, battery energy management unit position
In in Main Control Tank, for receiving the data of battery set management unit transmission and data being analyzed and handled, with controlling electric energy
System is interacted by dry contact, and by the system data transmission in battery case to electric energy control system, electric energy control system
Data are carried out arranging statistics and be stored after receiving data.
Load monitoring apparatus includes the electricity consumption data acquisition module with load connection, and electricity consumption data acquisition module includes enterprise
One second level summary table, resident's summary table and communal facility summary table.Electricity consumption data acquisition module mainly acquires the wattful power of load
Rate, reactive power, power factor, voltage, electric current, frequency, harmonic wave, accumulative electric energy, electricity using at the peak time data etc., collected data
It is transmitted to electric energy control system, electric energy control system is carried out arranging statistics and be stored after receiving data to data.
Wherein, a variety of communications such as RS485, CAN fieldbus, Ethernet can be used to connect for all data acquisition modules
Mouthful, and support the Standards Codes such as MODBUS-RTU/TCP/ASCII.Data transmission procedure meets electric power secondary system security protection
It is required that and guaranteeing the safety and integrality of data using encryption/decryption technique is transmitted.
The present embodiment additionally provides a kind of intelligent micro-grid control method, comprising the following steps:
S1: setting the system into grid-connected state, and electric energy control system judges whether need according to the state-of-charge of energy-storage system
It to charge to energy-storage battery, and send the generating set of dispatch command to distributed generation resource, control the generated output of generating set；
S2: being adjusted according to the method for operation of the generated output of the operating status of load and generating set to energy-storage system, when
When the power of load is greater than the output power of distributed generation resource, electric energy control system controls energy-storage system and supplements load remainder
Power demand, energy-storage system discharge electric energy；When the power of load is less than the output power of distributed generation resource, distributed generation resource
Meet the operation power of load, and the remaining output power of distributed generation resource charges to energy-storage system；
S3: it when electric energy control system detects electric network fault, controls grid-connected switch and disconnects, while micro-capacitance sensor energy storage inverter is certainly
Dynamic to be switched to independent operating, system voltage is set up in starting in the form of voltage source, passes through the management microgrid power of power supply and load
Dynamic equilibrium；
S4: after electric energy control system detects that network voltage is normal under independent operating state, the operation of micro-capacitance sensor energy storage inverter
Pattern switching is to be incorporated into the power networks, and subsequent electric energy control system is closed grid-connected switch, and system enters the mode that is incorporated into the power networks.
The present invention is by the acquisition to real time data, and the collected data of part carry out data preparation statistics, establish mathematics
Micro-grid system is scheduled after model, micro-grid system is made to have flexible scalability and retractility, improves micro- electricity
Net system capability, reduces maintenance cost, ensure that the normal orderly function of micro-capacitance sensor.
In addition to the implementation, the present invention can also have other embodiments；It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (6)
1. a kind of intelligent micro-grid control device, it is characterised in that: including distributed generation resource monitoring device, energy storage monitoring device,
Load monitoring apparatus and electric energy control system, the distributed generation resource monitoring device, energy storage monitoring device, load monitoring apparatus
It is connect with electric energy control system,
The distributed monitoring device for acquire the current generated output of distributed generation resource, cut-off to current total power generation,
Per day generated energy and the realtime power to generate electricity daily, and by collected data information transfer to electric energy control system；
The energy storage monitoring device is used to acquire the maximum storage electricity of energy-storage system, current total storage electricity, currently can also fill
Power consumption, maximum discharge power and present discharge power, and by collected data information transfer to electric energy control system；
The load monitoring apparatus is used to acquire the real-time voltage and electric current loaded, and by collected data information transfer to electricity
It can control system；
The electric energy control system is used to receive the data information of each monitoring device transmission, is stored and is counted, and according to negative
The charge and discharge electrical alternations of the electricity consumption situation control energy-storage system of load and the discharge power for adjusting energy-storage system, are also used to switch micro- electricity
The independent operating state and grid-connected state of net system.
2. a kind of intelligent micro-grid control device according to claim 1, it is characterised in that: the distributed monitoring device
It is connected including the power generation data acquisition module being connected with generating set in distributed generation resource and with power generation data acquisition module
Power generation data acquisition server, the power generation data acquisition server connect with electric energy control system.
3. a kind of intelligent micro-grid control device according to claim 1, it is characterised in that: the energy storage monitoring device packet
Battery core management control layer, battery set management unit and battery energy management unit are included,
The battery core management control layer is located in energy-storage battery case, for completing the data to battery case inside single battery information
Acquisition, and the complete battery pair of instruction for sending data to battery set management unit, while being transmitted according to battery set management unit
Equilibrium in case between single battery core,
The battery set management unit is located in the Main Control Tank of energy-storage system, passes for receiving battery core management control layer in battery case
Defeated data information, and the voltage and current of sampling battery case carry out SOC, SOH and calculate and correct, complete battery case precharge
And management of charging and discharging, and battery energy management unit is sent data to,
The battery energy management unit is located in Main Control Tank, for receiving the data of battery set management unit transmission and to data
It is analyzed and is handled, interacted with electric energy control system by dry contact, and extremely by the system data transmission in battery case
Electric energy control system.
4. a kind of intelligent micro-grid control device according to claim 1, it is characterised in that: the load monitoring apparatus packet
The electricity consumption data acquisition module with load connection is included, the electricity consumption data acquisition module includes one second level summary table of enterprise, Ju Minyong
Family summary table and communal facility summary table.
5. a kind of intelligent micro-grid control device according to claim 1, it is characterised in that: the electric energy control system is
EMS Energy Management System.
6. a kind of based on any intelligent micro-grid control method of claim 1-5, it is characterised in that: including following step
It is rapid:
S1: setting the system into grid-connected state, and electric energy control system judges whether need according to the state-of-charge of energy-storage system
It to charge to energy-storage battery, and send the generating set of dispatch command to distributed generation resource, control the generated output of generating set；
S2: being adjusted according to the method for operation of the generated output of the operating status of load and generating set to energy-storage system, when
When the power of load is greater than the output power of distributed generation resource, electric energy control system controls energy-storage system and supplements load remainder
Power demand, energy-storage system discharge electric energy；When the power of load is less than the output power of distributed generation resource, distributed generation resource
Meet the operation power of load, and the remaining output power of distributed generation resource charges to energy-storage system；
S3: it when electric energy control system detects electric network fault, controls grid-connected switch and disconnects, while micro-capacitance sensor energy storage inverter is certainly
Dynamic to be switched to independent operating, system voltage is set up in starting in the form of voltage source, passes through the management microgrid power of power supply and load
Dynamic equilibrium；
S4: after electric energy control system detects that network voltage is normal under independent operating state, the operation of micro-capacitance sensor energy storage inverter
Pattern switching is to be incorporated into the power networks, and subsequent electric energy control system is closed grid-connected switch, and system enters the mode that is incorporated into the power networks.
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| TWI797019B (en) * | 2022-05-30 | 2023-03-21 | 陳正一 | Microgrid power dispatch system and method thereof |
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Effective date of registration: 20200319 Address after: New new town road Yangzhong city 212200 Jiangsu city of Zhenjiang province No. 1 Applicant after: Jiangsu Dahang Microgrid Technology Co.,Ltd. Applicant after: DAHANG YOUNENG ELECTRICAL Co.,Ltd. Address before: New new town road Yangzhong city 212200 Jiangsu city of Zhenjiang province No. 1 Applicant before: Jiangsu Dahang Microgrid Technology Co.,Ltd. |
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Effective date of registration: 20220406 Address after: 212200 No. 1, pilot Road, Yangzhong high tech Industrial Development Zone, Zhenjiang City, Jiangsu Province Applicant after: Avionics (Jiangsu) new energy Co.,Ltd. Address before: 212200 No. 1 New Deal East Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Applicant before: Jiangsu Dahang Microgrid Technology Co.,Ltd. Applicant before: DAHANG YOUNENG ELECTRICAL CO.,LTD. |
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Application publication date: 20191018 |