CN110247432A - A kind of intelligent micro-grid - Google Patents
A kind of intelligent micro-grid Download PDFInfo
- Publication number
- CN110247432A CN110247432A CN201910615658.6A CN201910615658A CN110247432A CN 110247432 A CN110247432 A CN 110247432A CN 201910615658 A CN201910615658 A CN 201910615658A CN 110247432 A CN110247432 A CN 110247432A
- Authority
- CN
- China
- Prior art keywords
- energy
- battery
- load
- storage
- monitoring device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
Abstract
The invention discloses a kind of intelligent micro-grids, it is related to electric power network technical field, including distributed power supply system, load system, energy-storage system and electric energy management system, the distributed power supply system includes distributed generation resource and distributed generation resource monitoring device, the load system includes load and load monitoring apparatus, the energy-storage module includes energy-storage battery, energy storage converter and energy-storage battery monitoring device, the distributed generation resource, distributed generation resource monitoring device, load, load monitoring apparatus, energy-storage battery, energy storage converter and energy-storage battery monitoring device are connect with electric energy management system, and the distributed generation resource monitoring device is connect with distributed generation resource, the load monitoring apparatus and load connect, the energy storage converter and energy-storage battery monitoring device are connect with energy-storage battery；The present invention is convenient to the power grid in localized region and controls, and improves the requirement of power supply reliability and power supply quality.
Description
Technical field
The present invention relates to electric power network technical fields, more particularly to a kind of intelligent micro-grid.
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.
Summary of the invention
The technical problem to be solved by the present invention is to the shortcomings that overcoming the prior art, provide a kind of intelligent micro-grid.
In order to solve the above technical problems, technical scheme is as follows:
A kind of intelligent micro-grid, including distributed power supply system, load system, energy-storage system and electric energy management system, it is described
Distributed power supply system includes distributed generation resource and distributed generation resource monitoring device, and the load system includes load and bears
Monitoring device is carried, the energy-storage module includes energy-storage battery, energy storage converter and energy-storage battery monitoring device, the distributed electrical
Source, distributed generation resource monitoring device, load, load monitoring apparatus, energy-storage battery, energy storage converter and energy-storage battery monitoring device
It is connect with electric energy management system, and the distributed generation resource monitoring device is connect with distributed generation resource, the load monitoring dress
It sets and is connected with load, the energy storage converter and energy-storage battery monitoring device are connect with energy-storage battery, the distributed generation resource
Monitoring device be used to acquire distributed generation resource current power generation total amount and real-time generated output, and by collected data information
It is transmitted to electric energy management system, the load monitoring apparatus is used to acquire the utilization voltage and electricity consumption electric current of load, and will adopt
The data information transfer collected to electric energy management system, the energy-storage battery monitoring device is used to acquire the current storage of energy-storage battery
Electric energy and discharge power are deposited, and by collected data information transfer to electric energy management system, the electric energy management system is used
In the electricity consumption situation according to load, the charge and discharge electrical alternations and ac-dc conversion of energy-storage battery are controlled by energy storage converter.
It further, further include emergency power supply and emergency power supply control system, emergency power supply and emergency power supply control are
System, external electrical network and load system connection, emergency power supply control system can control emergency power supply to power to the load.
A kind of preceding intelligent micro-grid, distributed generation resource includes photovoltaic generating system and wind generator system, photovoltaic
Electricity generation system includes photovoltaic module and photovoltaic DC-to-AC converter, and the DC terminal of photovoltaic DC-to-AC converter is connect with photovoltaic module, photovoltaic DC-to-AC converter
Exchange end connect with micro-capacitance sensor, wind generator system includes wind-driven generator and blower inverter, blower inverter it is straight
Stream end is connect with wind-driven generator, and the exchange end of blower inverter is connect with micro-capacitance sensor.
A kind of preceding intelligent micro-grid, energy-storage battery includes lithium battery group.
A kind of preceding intelligent micro-grid, energy-storage battery monitoring device include battery core management control layer, battery set management
Unit and battery energy management unit, battery core management control layer are used to complete the battery information to lithium battery single in lithium battery group
It is acquired, and collected information is transmitted to battery set management unit, and the signal transmitted according to battery set management unit
The equilibrium in battery group between single lithium battery electric core is completed, battery set management unit is for receiving battery core management control layer transmission
Data information, acquire the voltage and current of lithium battery group, calculated and corrected, complete the management of charging and discharging of lithium battery group,
And battery energy management unit is sent data to, battery energy management unit is used to receive the number of battery set management unit transmission
It is believed that breath, and interacted with electric energy management system.
A kind of preceding intelligent micro-grid, electric energy management system are EMS Energy Management System.
A kind of preceding intelligent micro-grid, emergency power supply includes battery group and energy storage converter.
The beneficial effects of the present invention are:
(1) present invention is connected distributed generation resource and user load by electrical power trans mission/distribution system in regional area, can be facilitated
Power grid in ground localized region is controlled, and improves the requirement of power supply reliability and power supply quality, solves long distance power transmission
The various constraints of bring reduce influence of the energy power system to environment to improve energy utilization rate with all kinds of drawbacks,
Promote the environmentally protective development of society；
(2) present invention uses photovoltaic power generation and wind-power electricity generation as distributed generation resource, real while realizing high reliability power supply
Existing renewable energy is distributed rationally；Energy-storage system is added in micro-grid system again, solves photovoltaic power generation and wind-force hair
Intermittence, fluctuation possessed by electricity and uncertainty can store electric energy in the load valley period, and in load peak
Period is released, and so that micro-grid system is had schedulability, and reduce the configuration capacity of electrical network facilities, is improved defeated
The utilization rate of distribution has delayed the construction of power distribution network；
(3) present invention is additionally provided with emergency power supply, when distributed generation resource is too small for energy, when deficiency thinks all load supplyings,
It can be in micro-grid system by the emergency power supply outside micro-grid system or when poor grid power quality or fault outage occur
The load in portion is powered, and guarantees its normal operation；
(4) 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 battery, and complete single battery in battery group
Equilibrium between battery core；Battery set management unit can acquire the voltage and current of battery group, calculated and corrected, and electric power storage is completed
The management of charging and discharging of pond group；Battery energy management unit is interacted with electric energy management system；It to sum up completes to energy-storage system
Intelligent management 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, including distributed power supply system, load system, energy-storage system and
Electric energy management system.Distributed power supply system includes distributed generation resource and distributed generation resource monitoring device, load system include
Load and load monitoring apparatus, energy-storage module include energy-storage battery, energy storage converter and energy-storage battery monitoring device, distribution
Power supply, distributed generation resource monitoring device, load, load monitoring apparatus, energy-storage battery, energy storage converter and energy-storage battery monitoring dress
It sets and is connect with electric energy management system.And distributed generation resource monitoring device is connect with distributed generation resource, load monitoring apparatus and negative
Connection is carried, energy storage converter and energy-storage battery monitoring device are connect with energy-storage battery.
Distributed generation resource monitoring device be used for acquire distributed generation resource current power generation total amount and real-time generated output, and
By collected data information transfer to electric energy management system；Load monitoring apparatus is used to acquire the utilization voltage and use of load
Electric current, and by collected data information transfer to electric energy management system；Energy-storage battery monitoring device is for acquiring energy storage electricity
The current storage electric energy and discharge power in pond, and by collected data information transfer to electric energy management system；Electric energy management
System is used for the electricity consumption situation according to load, controls the charge and discharge electrical alternations of energy-storage battery by energy storage converter and alternating current-direct current becomes
It changes.
Referring to Fig. 1, distributed generation resource includes photovoltaic generating system and wind generator system.Wherein, photovoltaic generating system packet
Include photovoltaic module and photovoltaic DC-to-AC converter, the DC terminal of photovoltaic DC-to-AC converter is connect with photovoltaic module, the exchange end of photovoltaic DC-to-AC converter with
Micro-capacitance sensor connection.Wind generator system includes wind-driven generator and blower inverter, the DC terminal and wind-force of blower inverter
Generator connection, the exchange end of blower inverter is connect with micro-capacitance sensor.Distributed generation resource monitoring device and photovoltaic generating system and
Wind generator system connection, can acquire distributed generation resource current power generation total amount and real-time generated output, and will be collected
Data information transfer is to electric energy management system.In the present embodiment, distributed generation resource monitoring device uses DG controller.
In energy-storage system, energy-storage battery uses lithium battery group.Lithium ion battery energy storage technology is a kind of extensive efficient
Electrochemical energy storage new technology, compared to other battery energy storage technologies, lithium battery has the advantage that voltage height, and energy density is high,
Output power is high；Battery is long, and self discharge is low, environment friendly and pollution-free etc..Energy-storage battery and energy storage converter, energy storage exchange
Device can control the charge and discharge electrical alternations and ac-dc conversion of energy-storage battery.And energy-storage battery monitoring device includes battery core management control
Layer, battery set management unit and battery energy management unit, battery core manage control layer for completing to lithium single in lithium battery group
The battery information of battery is acquired, and collected information is transmitted to battery set management unit, and according to battery set management
The signal of unit transmission completes the equilibrium in battery group between single lithium battery electric core, and battery set management unit is for receiving battery core
The data information for managing control layer transmission, acquires the voltage and current of lithium battery group, is calculated and corrected, and completes lithium battery group
Management of charging and discharging, and send data to battery energy management unit, battery energy management unit is for receiving battery pack pipe
The data information of unit transmission is managed, and is interacted with electric energy management system.Energy-storage battery monitoring device can acquire energy-storage battery
Current storage electric energy and discharge power, and by collected data information transfer to electric energy management system.
Electric energy management system is EMS Energy Management System, and the groundwork of EMS Energy Management System is in micro-grid system
In operational process, guarantee power system stability, and be adjusted to parameters such as voltage, frequencies.
In addition, being additionally provided with emergency standby power, which can adopt in intelligent micro-grid in the present embodiment
With battery group, which connect with external electrical network, is charged by external electrical network to it.The battery group and emergency
Power control system and load system connection, control battery group by emergency power supply control system, can be to load
Load supplying in system.When distributed generation resource is too small for energy, when deficiency thinks all load supplyings, or it is electric when there is power grid
When the second-rate or fault outage of energy, it is ensured that load operates normally.
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 (7)
1. a kind of intelligent micro-grid, it is characterised in that: including distributed power supply system, load system, energy-storage system and electric energy
Management system,
The distributed power supply system includes distributed generation resource and distributed generation resource monitoring device, and the load system includes negative
It carries and load monitoring apparatus, the energy-storage system includes energy-storage battery, energy storage converter and energy-storage battery monitoring device, it is described
Distributed generation resource, distributed generation resource monitoring device, load, load monitoring apparatus, energy-storage battery, energy storage converter and energy-storage battery
Monitoring device is connect with electric energy management system, and the distributed generation resource monitoring device is connect with distributed generation resource, described negative
It carrying monitoring device and load connects, the energy storage converter and energy-storage battery monitoring device are connect with energy-storage battery,
The distributed generation resource monitoring device be used for acquire distributed generation resource current power generation total amount and real-time generated output, and
By collected data information transfer to electric energy management system,
The load monitoring apparatus is used to acquire the utilization voltage and electricity consumption electric current of load, and collected data information is passed
Electric energy management system is transported to,
The energy-storage battery monitoring device is used to acquire the current storage electric energy and discharge power of energy-storage battery, and will collect
Data information transfer to electric energy management system,
The electric energy management system is used for the electricity consumption situation according to load, and the charge and discharge of energy-storage battery are controlled by energy storage converter
Alternating and ac-dc conversion.
2. a kind of intelligent micro-grid according to claim 1, it is characterised in that: further include emergency power supply and emergency power supply
Control system, the emergency power supply are connect with emergency power supply control system, external electrical network and load system, the emergency power supply
Control system can control emergency power supply to power to the load.
3. a kind of intelligent micro-grid according to claim 1, it is characterised in that: the distributed generation resource includes photovoltaic power generation
System and wind generator system,
The photovoltaic generating system includes photovoltaic module and photovoltaic DC-to-AC converter, the DC terminal and photovoltaic module of the photovoltaic DC-to-AC converter
Connection, the exchange end of the photovoltaic DC-to-AC converter are connect with micro-capacitance sensor,
The wind generator system includes wind-driven generator and blower inverter, the DC terminal and wind-force of the blower inverter
Generator connection, the exchange end of the blower inverter is connect with micro-capacitance sensor.
4. a kind of intelligent micro-grid according to claim 1, it is characterised in that: the energy-storage battery includes lithium battery group.
5. a kind of intelligent micro-grid according to claim 1, it is characterised in that: the energy-storage battery monitoring device includes electricity
Core pipe manages control layer, battery set management unit and battery energy management unit,
The battery core management control layer will be adopted for completing to be acquired the battery information of lithium battery single in lithium battery group
The information collected is transmitted to battery set management unit, and completes list in battery group according to the signal of battery set management unit transmission
Equilibrium between a lithium battery electric core,
The battery set management unit is used to receive the data information of battery core management control layer transmission, acquires the voltage of lithium battery group
And electric current, it is calculated and is corrected, complete the management of charging and discharging of lithium battery group, and send data to battery energy management list
Member,
The battery energy management unit is used to receive the data information of battery set management unit transmission, and and electric energy management system
It interacts.
6. a kind of intelligent micro-grid according to claim 1, it is characterised in that: the electric energy management system is EMS energy
Management system.
7. a kind of intelligent micro-grid according to claim 2, it is characterised in that: the emergency power supply include battery group with
And energy storage converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615658.6A CN110247432A (en) | 2019-07-09 | 2019-07-09 | A kind of intelligent micro-grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615658.6A CN110247432A (en) | 2019-07-09 | 2019-07-09 | A kind of intelligent micro-grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110247432A true CN110247432A (en) | 2019-09-17 |
Family
ID=67891476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910615658.6A Pending CN110247432A (en) | 2019-07-09 | 2019-07-09 | A kind of intelligent micro-grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110247432A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595235A (en) * | 2020-04-30 | 2021-11-02 | 国网天津市电力公司 | Energy storage management system based on ubiquitous power Internet of things |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199093A (en) * | 2005-06-17 | 2008-06-11 | 最优许可公司 | Fast acting distributed power system for transmission and distribution system load using energy storage units |
| CN103595138A (en) * | 2013-11-21 | 2014-02-19 | 国网上海市电力公司 | Smart micro-grid system |
| CN205646811U (en) * | 2016-05-24 | 2016-10-12 | 中广核太阳能开发有限公司 | Photovoltaic directly exchanges and mixes little grid system |
| CN109120010A (en) * | 2018-09-21 | 2019-01-01 | 无锡美凯能源科技有限公司 | A kind of alternating current-direct current mixing tandem type micro-capacitance sensor applied to communication base station field |
-
2019
- 2019-07-09 CN CN201910615658.6A patent/CN110247432A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101199093A (en) * | 2005-06-17 | 2008-06-11 | 最优许可公司 | Fast acting distributed power system for transmission and distribution system load using energy storage units |
| CN103595138A (en) * | 2013-11-21 | 2014-02-19 | 国网上海市电力公司 | Smart micro-grid system |
| CN205646811U (en) * | 2016-05-24 | 2016-10-12 | 中广核太阳能开发有限公司 | Photovoltaic directly exchanges and mixes little grid system |
| CN109120010A (en) * | 2018-09-21 | 2019-01-01 | 无锡美凯能源科技有限公司 | A kind of alternating current-direct current mixing tandem type micro-capacitance sensor applied to communication base station field |
Non-Patent Citations (1)
| Title |
|---|
| 黄小红 等: "分布式光储微电网设计及应用研究", 《新材料产业》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113595235A (en) * | 2020-04-30 | 2021-11-02 | 国网天津市电力公司 | Energy storage management system based on ubiquitous power Internet of things |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102931653B (en) | Comprehensive coordination control method of wind-solar direct current micro-grid | |
| CN106549415A (en) | The method that distributed wind and solar hybrid generating system realizes effectively scheduling | |
| CN103199564A (en) | Intelligent power grid distributed self-supporting photovoltaic power supply system | |
| CN102361328A (en) | Wind and light complement distributed micro-grid system for comprehensively utilizing commercial power | |
| CN205092592U (en) | Distributing type photovoltaic power generation and control system | |
| CN112531760B (en) | Light storage and charging integrated layered coordination control system and control strategy thereof | |
| CN107749642A (en) | A kind of household energy router | |
| CN206195362U (en) | Photovoltaic microgrid grid -connected electricity generation system | |
| CN104283229A (en) | Comprehensive energy storage power station coordination control system of subsystem self-control mode | |
| CN113554352A (en) | Regional power grid electric energy distribution and scheduling system and method | |
| CN105790273A (en) | New energy microgrid interconnection power route method and device | |
| CN217215983U (en) | Lithium ion battery and flow battery integrated energy storage power station | |
| CN112636385A (en) | Micro-grid control method and system for multi-energy-flow complementary control | |
| CN106886201A (en) | The family expenses photovoltaic generating system and control method of a kind of Internet | |
| CN110061515B (en) | Energy storage monitoring device applied to zinc-iron flow battery of photovoltaic power generation field | |
| CN110350560A (en) | A kind of intelligent micro-grid control device | |
| CN102931688B (en) | Combined regenerative energy power supply device | |
| CN206908304U (en) | A kind of intelligent micro-grid energy-storage system | |
| CN203596618U (en) | Cabinet-type DC power supply system | |
| CN110247432A (en) | A kind of intelligent micro-grid | |
| CN104935075A (en) | Distributed power supply access user bidirectional metering, monitoring and energy efficiency management system and distributed power supply access user bidirectional metering, monitoring and energy efficiency management method | |
| CN103560537A (en) | Area distribution photovoltaic power supply grid-connected system and control method of area distribution photovoltaic power supply grid-connected system | |
| CN103840548B (en) | A kind of transformer substation system with micro-grid system | |
| CN207731116U (en) | A kind of family electric energy collection device | |
| CN203536974U (en) | Local distributed grid-connected photovoltaic power supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
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. |