CN207782430U - A kind of energy source router applied to island microgrid - Google Patents
A kind of energy source router applied to island microgrid Download PDFInfo
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- CN207782430U CN207782430U CN201820056098.6U CN201820056098U CN207782430U CN 207782430 U CN207782430 U CN 207782430U CN 201820056098 U CN201820056098 U CN 201820056098U CN 207782430 U CN207782430 U CN 207782430U
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Abstract
The utility model proposes a kind of energy source routers applied to island microgrid, belong to energy Internet technical field.The energy source router applied to island microgrid of the utility model includes N number of AC converter and M DC converter and can source router control module；Each AC converter structure is identical, and the exchange side of each AC converter is connect with a micro-capacitance sensor respectively, and the DC side of each AC converter is connect with DC bus；Each DC converter structure is identical, and the side of each DC converter is connect with a direct-current grid respectively, and the other side is respectively connect with DC bus；Energy source router control module issues power dispatching instruction according to the energy information of each micro-capacitance sensor.The energy source router of the utility model realizes exchange micro-capacitance sensor, the power of direct-current grid connects, and the break-make that three micro-capacitance sensors and energy source router are realized in shutdown is opened by controlling three port switch.
Description
Technical field
The utility model is related to energy Internet technical field, especially a kind of energy source routings applied to island microgrid
Device.
Background technology
With the fast development of China's marine cause, marine resources development is lifted using the Major Strategic for being listed in economic construction
It arranges, protection, the exploitation on island become the hot spot of new century marine cause with management.The exploitation marine resources of rational and orderly will be very big
The current land of alleviation develop the contradiction between faced economy, resource and environment.Hair of the China one to emphasis sea island resources
Exhibition utilizes, and the utilization on island need the energy as thrust.But in general, most islands face fossil fuel shortages, fortune
Defeated difficult, region remote the problems such as being difficult to network with continent.Existing diesel generating system is difficult to ensure the steady of island energy supply
It is qualitative.Since most of islands and surrounding possess abundant regenerative resource such as solar energy, by the island energy for building high-efficiency cleaning
Source system, especially greatly develops island microgrid, the problems such as can not only solving island fossil fuel shortages, transport difficult,
To protecting the marine environment, promoting energy-saving and emission-reduction also to have great importance.
For energy internet in energy access, energy control and energy transmission etc. institute's facing challenges, use for reference
The design concept of switch " router " in Internet, design can realize energy network interconnection, scheduling and control
The concept of " energy router " be proposed out.Energy router has been a kind of integrated fusion, and information technology becomes with power electronics
The efficient electrical circuitry equipment utilized and transmit for changing technology, realizing distributed energy.Technics of Power Electronic Conversion technology makes electric energy router
Required electric energy interface form is provided for various types of distributed generation resources, energy storage device and novel load, including various voltages,
Direct current or form of communication of the magnitude of current etc..To ensure that the reliable and stable operation of power grid and equipment, electric energy router also need have master
The functions such as dynamic Fault Isolation, power quality improve and uninterrupted electric power provides.
Chinese patent CN103248068A discloses the electric energy router for having a variety of power supply modes, and it is mixed to use alternating current-direct current
It closes busbar and forms alternating current-direct current mixing microgrid, use switch arrays to form energy channel.Chinese patent CN104682430A is public
A kind of energy router apparatus applied to energy internet has been opened, middle pressure range is belonged to, DC/DC transformation, DC/AC have been made greatly
The explanation of amount.Chinese patent CN105932779A discloses the micro-capacitance sensor based on energy router, uses the intelligent pipe of height
The energy router of reason manages electrical power trans mission/distribution system, has the characteristics that intelligent power transmission and distribution management and energy utilization rate are high.Existing energy
Amount router research is concentrated mainly on AC network, mixing alternating current-direct current net, and has focused largely on LAN and backbone network, to off-network type
Island microgrid and the how close energy source interconnection research apart from island microgrid group less focus on.
Utility model content
The utility model proposes a kind of energy source routers applied to island microgrid, and it is multiple and different to solve existing connection
The island microgrid of framework realizes that the integral energy of each micro-capacitance sensor in region coordinates flowing.
Realize that the technical solution of the utility model is：A kind of energy source router applied to island microgrid, including N
A AC converter and M DC converter and energy source router control module；Each AC converter structure is identical,
The exchange side of each AC converter is connect with a micro-capacitance sensor respectively, and DC side and the DC bus of each AC converter connect
It connects；Each DC converter structure is identical, and the side of each DC converter is connect with a direct-current grid respectively, separately
Side is respectively connect with DC bus；
The energy source router control module issues power dispatching instruction according to the energy information of each micro-capacitance sensor.
Further, the DC side of each AC converter is connect by a capacitance with DC bus.
Further, the AC converter includes sequentially connected Industrial Frequency Transformer, LC filters and three-phase half-bridge
Circuit, the Industrial Frequency Transformer are located at the exchange side of AC converter, and the three-phase half-bridge circuit is located at the straight of AC converter
Flow side.
Further, the three-phase half-bridge circuit is made of insulated gate bipolar transistor.
Further, the DC converter include sequentially connected DC converting module, DC side LC filters and
D.C. contactor KM2, the DC converting module are located at the side that DC converter is connect with DC bus, the direct current contact
Device KM2 is located at the side that DC converter is connect with direct-current grid.
Compared with prior art, remarkable advantage is the utility model：1, there is multiple input port, can be achieved at the same time
The energy flow between different micro-capacitance sensors is realized in the access of several micro-grid systems, and it is scarce to meet being full of for power between each micro-capacitance sensor
Complementation improves the utilization ratio of energy.2, using AC converter and DC converter, it is all made of modularized design, is enabled
Source router has " plug and play " function, can meet more micro-capacitance sensor access dilatation demands.3, access is simple, it can be achieved that heat is inserted
It pulls out, realizes the group net operation of energy internet, by DC/DC, the power generation of different distributions formula can be achieved in different micro- electricity in AC/DC transformation
Net complimentary can be widely applied to off-network island, the occasions such as industrial park, school, hospital.
Further detailed description is done to the utility model below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is a kind of access way schematic diagram of energy source router applied to island microgrid of the utility model.
Fig. 2 is a kind of circuit topology figure of energy source router applied to island microgrid of the utility model.
Specific implementation mode
The utility model is described in more detail below in conjunction with the accompanying drawings.
A kind of energy source router applied to island microgrid, including N number of AC converter and M DC converter and
It can source router control module；Each AC converter structure is identical, and the exchange side of each AC converter is respectively with one
A micro-capacitance sensor connection, the DC side of each AC converter are connect with DC bus；Each DC converter structure is identical,
The side of each DC converter is connect with a direct-current grid respectively, and the other side is respectively connect with DC bus；
The energy source router control module issues power dispatching instruction according to the energy information of each micro-capacitance sensor.
In further embodiment, the DC side of each AC converter is connected by a capacitance and DC bus
It connects.
In further embodiment, the AC converter include sequentially connected Industrial Frequency Transformer, LC filters and
Three-phase half-bridge circuit, the Industrial Frequency Transformer are located at the exchange side of AC converter, and the three-phase half-bridge circuit is located at exchange and becomes
The DC side of parallel operation
In further embodiment, the three-phase half-bridge circuit is made of insulated gate bipolar transistor.
In further embodiment, the DC converter includes sequentially connected DC converting module, DC side LC filters
Wave device and D.C. contactor KM2, the DC converting module is located at the side that DC converter is connect with DC bus, described
D.C. contactor KM2 is located at the side that DC converter is connect with direct-current grid.
So that the island that the energy source router applied to island microgrid of the utility model connects multiple and different frameworks is micro-
Power grid realizes that the integral energy of each micro-capacitance sensor in region coordinates flowing.It is set for distribution type renewable energy generating equipment, energy storage
Standby, power load access provides a kind of new energy routing mode.Realize the energy internet of short distance island microgrid group
Structure, meets the inside self-healing of single micro-capacitance sensor and the power-balance of entire micro-capacitance sensor group.
Embodiment 1
In conjunction with shown in Fig. 2, a kind of energy source router applied to island microgrid, including 2 AC converters and 1 are straight
Alternating-current converter, each AC converter structure is identical, and the exchange side of each AC converter is connect with a micro-capacitance sensor respectively, often
The DC side of a AC converter is connect with DC bus；Each DC converter structure is identical, each DC converter
Side connect respectively with a direct-current grid, the other side is respectively connect with DC bus.AC port is mainly and distribution
Net system connects.The low-voltage direct port of DC converter can then be charged with external energy storage device, distributed generation resource, electric vehicle
The DC equipments such as device.Wherein, AC converter includes sequentially connected Industrial Frequency Transformer, LC filters and three-phase half-bridge electricity
Road, exchange micro-capacitance sensor realize electrical isolation by Industrial Frequency Transformer, meet voltage transformation demand.Exchange micro-capacitance sensor voltage electric current warp
It after Industrial Frequency Transformer, is filtered by LC filters, then accesses the three-phase half-bridge being made of insulated gate bipolar transistor
Circuit, two AC converter DC side output connection DC bus, then access DC converter, realization are micro- with direct current jointly
The power of power grid connects, and DC voltage grade can be that the voltage class such as DC400V, DC48 are optional, be connect convenient for distributed generation resource
Enter, meets the access demand of the loads such as data center, mobile communication.
In conjunction with shown in Fig. 1, exchange micro-capacitance sensor 1 realized applied to the energy source router of island microgrid in the present embodiment, handed over
The power connection of micro-capacitance sensor 2, direct-current grid 3 is flowed, the voltage of two exchange micro-capacitance sensors is exchange 380V, the voltage of direct-current grid
Including the voltage class such as DC voltage 400V, 48V, it is micro- to open shutdown realization three by control three port switch S1, S2, S3
The break-make of power grid and energy source router.It can source router control module and Energy Management System and the progress data friendship of each micro-capacitance sensor
It changes, to realize the multidirectional control of energy stream and data flow, realizes that the utility model is applied to island by RS485 or Ethernet
The energy source router of micro-capacitance sensor and the communication function of Energy Management System.For energy source router as nucleus module, realization is multiple not
It is connected with framework micro-capacitance sensor, energy source router three micro-capacitance sensor integral energies of control module pair carry out coordination control, realize each micro-
Being full of for power grid energy lacks complementation.Micro-capacitance sensor 1 is negative by photovoltaic generating system, plumbic acid energy-storage system, current transformer, exchange in the present embodiment
The compositions such as lotus, DC load, desalination plant, tuning controller, controllable switch；Micro-capacitance sensor 2 is by wind generator system, plumbic acid
The compositions such as energy-storage system, current transformer, AC load, controllable switch；Micro-capacitance sensor 3 is by photovoltaic generating system, Acid Battery System, shifting
The compositions such as dynamic communication load, controllable switch.
Energy Management System judges the information of each micro-capacitance sensor according to formula P0=Pv+Pess-Pload, wherein
P0 indicates that dump power in micro-capacitance sensor, wherein Pv indicate that distributed photovoltaic power generation power, Pess indicate energy-storage battery output power,
Pload is expressed as specific load electric power.P0 and 0 relationship are judged for each micro-capacitance sensor, if the P0 of exchange micro-capacitance sensor 1 is more than
Zero, then it represents that exchange 1 exportable power of micro-capacitance sensor, if being less than zero, then it represents that exchange micro-capacitance sensor needs are obtained from other micro-capacitance sensors
Take power.Other two micro-capacitance sensors are similar to be judged.
After Energy Management System is by three micro-capacitance sensor data processings, so that it may to judge power demand flow direction,
If exchange 1 power of micro-capacitance sensor has vacancy, energy source router control module judges the work(of exchange micro-capacitance sensor 2 and direct-current grid
Then rate selects the remaining larger micro-capacitance sensor of power to power instruction under its converter, carries out power control.The utility model
Energy source router applied to island microgrid is realized by the power control to 2 AC converters and 1 DC converter
Flow of power between micro-capacitance sensor.
Claims (5)
1. a kind of energy source router applied to island microgrid, which is characterized in that including N number of AC converter and M direct current
Exchanger and energy source router control module；Each AC converter structure is identical, the exchange of each AC converter
Side is connect with a micro-capacitance sensor respectively, and the DC side of each AC converter is connect with DC bus respectively；Each direct current
Transformer configuration is identical, and the side of each DC converter is connect with a direct-current grid respectively, the other side respectively with directly
Flow busbar connection；
The energy source router control module issues power dispatching instruction according to the energy information of each micro-capacitance sensor.
2. the energy source router according to claim 1 applied to island microgrid, which is characterized in that each exchange
The DC side of converter is connect by a capacitance with DC bus.
3. the energy source router according to claim 1 applied to island microgrid, which is characterized in that the exchange conversion
Device includes sequentially connected Industrial Frequency Transformer, LC filters and three-phase half-bridge circuit, and the Industrial Frequency Transformer is located at exchange and becomes
The exchange side of parallel operation, the three-phase half-bridge circuit are located at the DC side of AC converter.
4. the energy source router according to claim 3 applied to island microgrid, which is characterized in that the three-phase half-bridge
Circuit is made of insulated gate bipolar transistor.
5. the energy source router according to claim 1 applied to island microgrid, which is characterized in that the DC converting
Device includes sequentially connected DC converting module, DC side LC filters and D.C. contactor KM2, the DC converting module
Positioned at the side that DC converter is connect with DC bus, the D.C. contactor KM2 is located at DC converter and DC micro-electric
Net the side of connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820056098.6U CN207782430U (en) | 2018-01-12 | 2018-01-12 | A kind of energy source router applied to island microgrid |
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| CN201820056098.6U CN207782430U (en) | 2018-01-12 | 2018-01-12 | A kind of energy source router applied to island microgrid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281987A (en) * | 2018-01-12 | 2018-07-13 | 中国电力科学研究院南京分院 | A kind of energy source router applied to island microgrid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108281987A (en) * | 2018-01-12 | 2018-07-13 | 中国电力科学研究院南京分院 | A kind of energy source router applied to island microgrid |
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