CN207559667U - A kind of DC energy source router - Google Patents
A kind of DC energy source router Download PDFInfo
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- CN207559667U CN207559667U CN201721143779.8U CN201721143779U CN207559667U CN 207559667 U CN207559667 U CN 207559667U CN 201721143779 U CN201721143779 U CN 201721143779U CN 207559667 U CN207559667 U CN 207559667U
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Abstract
The utility model discloses a kind of DC energy source router, including main circuit, driving circuit and control circuit；Main circuit includes input port, Buck conversion circuit (BUCK circuits) and output port；The input port is used to connect external DC micro-electric source；The output port is used to connect external dc bus；The Buck conversion circuit includes blocking diode (D1), relay protection switch (EMI), channel switch (SSI), IGBT, fly-wheel diode (D2), inductance (L1) and capacitance (C1)；Drive module outputs level signals are to relay protection switch and channel switch, the control terminal (i.e. the G poles of IGBT) of driving circuit output pwm signal to IGBT.The DC energy source router is easy to implement, and the switching of router channel is realized using multiple switch, and reliability is high.
Description
Technical field
The utility model is related to a kind of DC energy source routers.
Background technology
Existing direct-current grid is made of DC micro-electric source, energy storage device, load etc., DC micro-electric source include wind-powered electricity generation,
Solar energy, the fuel cell distributed energy, type is more, and has the characteristics that intermittent, randomness, and output voltage exists not
Stablize, the problem of voltage level is inconsistent, each DC energy source cannot directly collect, and can not carry out unified allocation of resources to each DC energy source
Control.Solution universal at present is that each distributed energy carries out DC/DC transformation company by Technics of Power Electronic Conversion device voltage
Dc bus is connected to, dc bus provides electricity by alternating current-direct current load of the Technics of Power Electronic Conversion device for different voltages grade again
Can, the micro battery output voltage and power are adjusted by each independent micro source controller.
It is that a kind of micro-capacitance sensor is referred in the patent of Publication No. CN105932779A to have most close scheme at present
Energy router, including dc bus, generating equipment controllable switch group, grid-connected modular converter and electric control system etc..
Distributed-generation equipment is directly connect with electric loading, power grid with router, and the router integrated level is high, can meet particular needs
It asks, but exists simultaneously input interface disunity, portable poor, the problem of being unfavorable for extending, it is difficult to adapt to micro-capacitance sensor and flexibly control
The requirement of system.
Though the prior art can solve the problems, such as the access of a variety of distributed energies, control underaction is existed simultaneously, it is impossible to
Unified interface is provided, portability, scalability are poor, and progress dynamic control can not be distributed to the microgrid direction of energy and be asked
Topic.
Therefore, it is necessary to design a kind of DC energy source router.
Utility model content
The technical problem to be solved by the utility model is to provide a kind of DC energy source router, the DC energy source routers
It is easy to implement, the switching of router channel is realized using multiple switch, reliability is high.
The technical solution of utility model is as follows：
A kind of DC energy source router unit (abbreviation router unit, similarly hereinafter), including main circuit, driving circuit and control
Circuit；
Main circuit includes input port, Buck conversion circuit (BUCK circuits) and output port；
The input port is used to connect external DC micro-electric source in succession,；
The output port is used to connect external dc bus in succession；
The Buck conversion circuit includes blocking diode (D1), relay protection switch (EMI), channel switch
(SSI), IGBT, fly-wheel diode (D2), inductance (L1) and capacitance (C1)；Blocking diode, relay protection switch, channel switch
And IGBT is serially connected between the anode of input port and the cathode of fly-wheel diode；Inductance be connected on the cathode of fly-wheel diode with it is defeated
Between the anode of exit port；Capacitance is in parallel with output port；The negative terminal of input port and the negative terminal of output port with afterflow two
The anode of pole pipe is connected；
Driving circuit is connected with control module, and is controlled by control module；3 output terminals of driving circuit succeed electricity respectively
The control terminal of protection switch, channel switch and IGBT；Drive module outputs level signals to relay protection switch and channel switch,
Driving circuit output pwm signal is to the control terminal (i.e. the G poles of IGBT) of IGBT.
Blocking diode (D1), relay protection switch (EMI), channel switch (SSI), IGBT can be sequentially connected in series, and also may be used
Arbitrarily to connect, its electrical characteristic is not changed.
The DC energy source router further includes the data acquisition circuit for acquiring feedback voltage or current signal；Number
It is connected according to Acquisition Circuit with control module.
Data acquisition circuit includes first voltage detection circuit, second voltage detection circuit and current feedback circuit；First
Voltage detecting circuit and second voltage detection circuit are respectively used to the voltage of detection input mouth and output port, current feedback electricity
Road is used for the output current of detection output mouth.
Driving circuit is connected by IGBT drive module and the control terminal of IGBT.
IGBT drive module uses M57959 devices.
The control module includes data acquisition controller, relay protection and control device and communication controler；Data acquire
Controller and relay protection and control device are connected with driving circuit；Data acquisition controller and relay protection and control device communication link
It connects；Data acquisition controller is communicated to connect with communication controler；Communication controler is communicated to connect with relay protection and control device.
The communication controler is ARM controller；
ARM controller has the CAN interface for connecting CAN bus.
The data acquisition controller is DSP.
It is additionally provided with whether state monitoring module (for detecting the output state of the router, i.e., has voltage at output port
Output etc.).
State monitoring module has to be connect for CAN interface, RS485 interfaces or the MODUSB buses of output status signal
Mouthful.Specifically, state monitoring module with host computer is communicated or passed through CAN interface by RS485 interfaces or MODUSB buses
It communicates with external host.
In addition：Data acquisition controller be also associated with for locally control man-machine interface (such as keyboard, mouse, touch screen,
Touch tablet, display screen etc.).
In addition：
(I) the DC energy source router module being made of this DC energy source router, including at least one router group；
Each router group includes n router unit；N >=2, n are natural number；
Each router unit includes main circuit；Driving circuit and control circuit are equipped in router group；
Main circuit includes input port, Buck conversion circuit (BUCK circuits) and output port；
The input port is used to connect external DC micro-electric source；
The output port is used to connect external dc bus；
Buck conversion circuit is driven by driving circuit, and Buck conversion circuit is controlled by control circuit.
Controller is 1 or n；n≥2；N is natural number；
(1) when controller is 1, which controls all router units；
(2) when controller is n, n controllers are corresponding respectively to control n router unit.
Driver is 1 or n；
(1) when driver is 1, all router units of the driver control；
(2) when controller is n, n driver is corresponding respectively to drive n router unit.
Each router unit further includes the data acquisition circuit for acquiring feedback voltage or current signal；Data are adopted
Collector is connected with control module.Data acquisition circuit includes first voltage detection circuit, second voltage detection circuit and electric current
Feedback circuit；
First voltage detection circuit and second voltage detection circuit are respectively used to the electricity of detection input mouth and output port
Pressure, current feedback circuit are used for the output current of detection output mouth.
Controller is connect with external fieldbus, for obtaining control signal by fieldbus and uploading acquisition
Data.Fieldbus is CAN bus or other buses.
DC micro-electric source is wind-powered electricity generation electricity generation module, solar electrical energy generation module, fuel cell, thermal power generation module, flywheel hair
At least one of electric module, compressed air electricity generation module.
The control module includes data acquisition controller, relay protection and control device and communication controler；Data acquire
Controller and relay protection and control device are connected with driving circuit；Data acquisition controller and relay protection and control device communication link
It connects；Data acquisition controller is communicated to connect with communication controler；Communication controler is communicated to connect with relay protection and control device.
The communication controler is ARM controller；
ARM controller has the CAN interface for connecting CAN bus.
The data acquisition controller is DSP.
Lightning protection device is equipped in router group.Lightning protection device is direct current arrester, also known as DC power supply arrester, is existing
Mature equipment；DC power supply arrester device is used to prevent lightning surge and transient overvoltage from setting DC power system and electricity consumption
Damage caused by standby, protects equipment and the safety of user.Direct current arrester is additionally operable to eliminate distributed energy and accumulator string
The inductive lightning entered.
It is additionally provided with whether state monitoring module (for detecting the output state of the router, i.e., has voltage at output port
Output etc.).
State monitoring module has to be connect for CAN interface, RS485 interfaces or the MODUSB buses of output status signal
Mouthful.Specifically, state monitoring module with host computer is communicated or passed through CAN interface by RS485 interfaces or MODUSB buses
It communicates with external host.
In addition：Data acquisition controller be also associated with for locally control man-machine interface (such as keyboard, mouse, touch screen,
Touch tablet, display screen etc.).
Driving circuit is connected by IGBT drive module and the control terminal of IGBT.
IGBT drive module uses M57959 devices.
(II) micro-grid system based on this DC energy source router is as follows：
A kind of micro-grid system, including system monitor (i.e. energy management platform), DC energy source router, accumulator mould
Block and change flow module；
DC energy source router has multiple power input ports for being used to access DC micro-electric source；DC energy source router
Multiple output ports be connected with dc bus；
Battery module is connected by module of plugging into dc bus；
Become flow module with dc bus to be connected, become flow module and be used for as AC or DC load supplying；
DC energy source router, battery module and change flow module are connected, and be controlled by system with system monitor
Monitor.
Micro-grid system further includes the bus-bar collocation device being connected with dc bus, and bus-bar collocation device is controlled by system prison
Control device.
Battery module includes multiple single batteries.Multiple single batteries can carry out series and parallel combination.
Module of plugging into is plugged into case for accumulator.
Become flow module to include connecing the DC/AC modules of AC load and/or the DC/DC modules for connecing DC load.
DC energy source router, battery module and change flow module are connected by bus with system monitor.It is preferred that CAN
Bus.
DC energy source router includes at least one router group；Each router group includes n router unit；n
>=2, n are natural number；
Each router unit includes main circuit；Driving circuit and control circuit are equipped in router group；
Main circuit includes input port, Buck conversion circuit (BUCK circuits) and output port；
The input port is used to connect external DC micro-electric source；
The output port is used to connect external dc bus；
Buck conversion circuit is driven by driving circuit, and Buck conversion circuit is controlled by control circuit.
Router group, which is placed in babinet, (if router group is one, to be placed in babinet, if multiple router groups, right
It should be placed in respective independent babinet).
Each router unit further includes the data acquisition circuit for acquiring feedback voltage or current signal；Data are adopted
Collector is connected with control module.Data acquisition circuit includes first voltage detection circuit, second voltage detection circuit and electric current
Feedback circuit.
First voltage detection circuit and second voltage detection circuit are respectively used to the electricity of detection input mouth and output port
Pressure, current feedback circuit are used for the output current of detection output mouth.
DC micro-electric source is wind-powered electricity generation electricity generation module, solar electrical energy generation module, fuel cell, thermal power generation module, flywheel hair
At least one of electric module, compressed air electricity generation module.
Bus-bar collocation device is connected by CAN bus with system monitor, for stable DC busbar voltage, eliminates line
Wave inhibits voltage flicker.It is described as follows：
Bus-bar collocation device includes being controlled by the standby energy-storage system (such as standby capacitor) that system monitor carries out switching
And discharge system；
(1) standby energy-storage system provides backup power supply for dc bus, realizes low-voltage crossing when busbar voltage is too low
(low-voltage crossing refers to, when electric network fault or disturbance cause grid entry point Voltage Drop, the power supply of grid integration can continue to run with,
For example, when electric network fault or disturbance cause the Voltage Drop of wind farm grid-connected point, in the range of Voltage Drop, Wind turbines
It can uninterruptedly be incorporated into the power networks.For photovoltaic plant when power system accident or disturbance cause photo-voltaic power generation station grid-connected voltage to be fallen
When, in certain Voltage Drop scope and time interval, photo-voltaic power generation station can ensure not off-grid continuous operation.)
(2) effect of discharge system；Due to new energy such as solar energy and wind energies, there are certain seasonalities, i.e. weather and season
The variation of section, there are larger differences for output energy；Sometimes, output voltage is excessively high electrical equipment to be caused to be damaged
Evil；Therefore, when DC bus-bar voltage is excessively high, certain electric energy is discharged by discharge system, so as to which DC bus-bar voltage be maintained to exist
In preset range；
Standby energy-storage system and discharge system are monitored by system monitor, and system monitor first passes through real-time acquisition
Data monitoring dc bus data, so as to decide whether start bus-bar collocation device, pass through CAN bus if it need to start
Bus-bar collocation device is issued instructions to, controls input and the excision of standby energy-storage system and discharge system.
Advantageous effect：
The DC energy source router of the utility model can realize the access and output of DC power supply, and DC energy source road
It is controlled by relay protection switch (EMI), channel switch (SSI), the IGBT of controller by being integrated in device；Reliability is high, and controls
Device processed includes data acquisition controller, relay protection and control device and communication controler, can not only realize field control, moreover it is possible to receive
Remote control commands are conducive to the networking of this DC energy source router, also support the manual control at scene, therefore, this straight
Stream energy source router reliability is high, and control is flexible and convenient.
Further, the DC energy source router module of multiple this DC energy source router compositions can realize a variety of direct currents
The energy collects, and using modular design, provides unified micro battery input interface, carries out output power dynamic control.Routing
Device module is an autonomous device, can meet the different type micro battery input of 6 tunnels or more road simultaneously, per input all the way or export
Independent control can be carried out, effectively controls the distribution of micro-capacitance sensor trend, scalability is high, portable good, is conducive to build micro-capacitance sensor
System.
Direct current router module is completed a variety of micro batteries and is collected in this system, can dynamic regulation output port power it is defeated
Go out, be the hinge of the energy and the hinge of information.Energy management platform is by fieldbus to micro battery, energy storage device, compensation
Device, load electric converter carry out unified management and allotment, can ensure that entire micro-grid system is reliable, stable operation.
The utility model uses unified distributed micro battery input interface, enhances portability, the autgmentability of system,
The environmental suitability of raising system；
And it based on the micro-grid system of this router, solves and modular distributed micro battery access, electricity is provided
The problem of distribution of power trend is difficult to control using the component of high modularization, convenient for extension, can enhance the adaptability of micro-capacitance sensor.
Description of the drawings
Fig. 1 is the circuit diagram of DC energy source router unit.
Fig. 2 is the structure chart of DC energy source router.
Fig. 3 is the topological diagram that DC energy source router is used for micro-capacitance sensor.
Specific embodiment
The utility model is described in further details below with reference to the drawings and specific embodiments：
Embodiment 1：
Such as Fig. 1, DC energy source router is also known as routing channel circuit or router unit, including main circuit, driving circuit,
Data acquisition controller, relay protection and control device and ARM controller (i.e. communication controler).
Main circuit：For accessing distributed micro battery, blocking diode D1, relay protection switch EM1, channel switch are included
SS1, PWM regulating switch etc. forms a decompression BUCK type circuit.
Driving circuit：It is driven with controller, relay protection and control device, relay protection switch EM1, channel switch SS1, IGBT
Module M57959 is connected, for receiving the signal of controller and relay protection and control device, control relay protection switch, channel switch
Connecting and disconnecting, adjust output voltage electric current.
Controller：It is connected with driving circuit, relay protection and control device, data acquisition controller, for collection voltages, electric current
Feedback signal, and operation is carried out according to the long-range Setting signal that data acquisition and ARM controller pass over, form control
Signal is communicated when controller is under loss situation, practicable local control, the reliable and stable operation of safeguards system.
ARM controller：It is connected with relay protection and control device and controller, for receiving remote signal and the local number of transmission
According to.
The voltage transmitter HPT of data acquisition controller and main circuit (i.e. first voltage detection circuit and second voltage inspection
Slowdown monitoring circuit), current transducer HCT (i.e. current feedback circuit) connections, the data acquisition controller also with driving circuit, relay
Protect controller, data acquisition and ARM controller (i.e. communication controler) connection.
The relay protection switch EM1 of driving circuit and main circuit, channel switch SS1, IGBT drive module M57959 connections,
The driving circuit is also connect with data acquisition controller, relay protection and control device.
Relay protection and control device is connect with controller, driving circuit, data acquisition and ARM controller.
ARM controller is connect with data acquisition controller, relay protection and control device.
Such as Fig. 3, DC energy source router module includes 2 routing casees and dc bus, and routing case further includes independent electricity
Source circuit.The routing case is made of 3 independent routing channels, can access the different DC micro-electric source in 3 tunnels, as shown in Fig. 2,
DC energy source routing cabinet has accessed 6 kinds of different DC micro-electric sources.6 road variety classes direct current distribution micro battery of the left side passes through system
One interface access direct current router, converges into dc bus output, right side energy storage device includes electric power storage after DC/DC is converted
Pond is plugged into case, accumulator group, and energy storage device plays " peak load shifting ", when distributed micro battery output power deficiency, by storing up
Energy device supplement, effectively prevent voltage to cave in, an important supporting role is played in micro-grid system.Dc bus compensation dress
Overvoltage and voltage sag can be prevented by putting, and inhibited ripple, improved DC bus-bar voltage stability and entire micro-grid system
Reliability.
Direct current router is connected with micro battery and dc bus.Bus-bar collocation device, accumulator are plugged into case, DC/DC, DC/
AC converters are connected with dc bus, and dc bus completes the exchange of the energy.Energy management platform passes through CAN bus and direct current road
It is plugged into and case, DC/DC, DC/AC converter and is connected by device, bus-bar collocation device, accumulator, be the control core of entire micro-grid system
The heart.Accumulator plugs into case as two-way DC/DC converting means, can both store energy or micro-capacitance sensor provides energy, and keep system
Voltage stabilization.
The DC energy source router of the utility model is made of 2 independent routing casees and dc bus, the routing case
Including 3 mutually independent routing channels, the different micro battery in 3 tunnels can access.
Micro-grid system based on energy source router includes photovoltaic, wind-force, fuel cell, heating power, flywheel, compressed air etc.
Direct current distribution micro battery further includes direct current router, energy management platform, bus-bar collocation device, energy storage device, energy conversion
Device.
DC micro-electric source：The direct currents distributed energy such as photovoltaic, wind-force, the input terminal of micro-grid system.
DC energy source router：Micro-capacitance sensor system central module completes collecting and exchanging for DC energy source.
Energy management platform：The control core of system is monitored entire micro-grid system by local controlling bus,
Dynamic control micro battery exports and the distribution of the micro-capacitance sensor direction of energy.
Bus-bar collocation device：Clamper is carried out to output voltage, inhibits voltage fluctuation and flickering.
Energy storage device：It plugs into case, accumulator group etc. including accumulator, for micro-grid system energy stores and output voltage
Support, plays a part of " peak load shifting ".
Energy converter：Including DC/AC, DC/DC converters for matched load, complete electric energy output.
Furthermore it is also possible to routing case by 2 be extended to 3 or accumulator plug into case, dc bus compensation dress
It puts, energy management platform, DC/DC converters, DC/AC converters are independent or some or all of are integrated to DC energy source routing
Device is also considered as same scheme.
Claims (10)
1. a kind of DC energy source router, which is characterized in that including main circuit, driving circuit and control circuit；
Main circuit includes input port, Buck conversion circuit (BUCK circuits) and output port；
The input port is used to connect external DC micro-electric source；
The output port is used to connect external dc bus；
The Buck conversion circuit include blocking diode (D1), relay protection switch (EMI), channel switch (SSI),
IGBT, fly-wheel diode (D2), inductance (L1) and capacitance (C1)；Blocking diode, relay protection switch, channel switch and IGBT
It is serially connected between the anode of input port and the cathode of fly-wheel diode；Inductance is connected on the cathode and output port of fly-wheel diode
Anode between；Capacitance is in parallel with output port；The negative terminal of input port and the negative terminal of output port with fly-wheel diode
Anode is connected；
Driving circuit is connected with control module, and is controlled by control module；3 output terminals of driving circuit succeed electric protection respectively
The control terminal of switch, channel switch and IGBT；Drive module outputs level signals drive to relay protection switch and channel switch
Circuit output pwm signal is to the control terminal (i.e. the G poles of IGBT) of IGBT.
2. DC energy source router according to claim 1, which is characterized in that further include to acquire feedback voltage or electricity
Flow the data acquisition circuit of signal；Data acquisition circuit is connected with control module.
3. DC energy source router according to claim 2, which is characterized in that data acquisition circuit is examined including first voltage
Slowdown monitoring circuit, second voltage detection circuit and current feedback circuit；
First voltage detection circuit and second voltage detection circuit are respectively used to the voltage of detection input mouth and output port, electricity
Current feedback circuit is used for the output current of detection output mouth.
4. DC energy source router according to claim 1, which is characterized in that driving circuit by IGBT drive module with
The control terminal connection of IGBT.
5. DC energy source router according to claim 4, which is characterized in that IGBT drive module uses M57959 devices
Part.
6. DC energy source router according to claim 1, which is characterized in that the control module is acquired including data
Controller, relay protection and control device and communication controler；Data acquisition controller and relay protection and control device are and driving circuit
It is connected；Data acquisition controller is communicated to connect with relay protection and control device；Data acquisition controller and communication controler communication link
It connects；Communication controler is communicated to connect with relay protection and control device.
7. DC energy source router according to claim 6, which is characterized in that the communication controler is controlled for ARM
Device；
ARM controller has the CAN interface for connecting CAN bus.
8. DC energy source router according to claim 6, which is characterized in that the data acquisition controller is DSP.
9. according to claim 1-8 any one of them DC energy source routers, which is characterized in that be additionally provided with shape at output port
State monitoring modular.
10. DC energy source router according to claim 9, which is characterized in that state monitoring module has to export
CAN interface, RS485 interfaces or the MODUSB bus interface of status signal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143779.8U CN207559667U (en) | 2017-09-07 | 2017-09-07 | A kind of DC energy source router |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721143779.8U CN207559667U (en) | 2017-09-07 | 2017-09-07 | A kind of DC energy source router |
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| Publication Number | Publication Date |
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| CN207559667U true CN207559667U (en) | 2018-06-29 |
Family
ID=62676002
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190602A (en) * | 2019-05-07 | 2019-08-30 | 深圳市航天新源科技有限公司 | A kind of portable intelligent power router and its control method |
-
2017
- 2017-09-07 CN CN201721143779.8U patent/CN207559667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110190602A (en) * | 2019-05-07 | 2019-08-30 | 深圳市航天新源科技有限公司 | A kind of portable intelligent power router and its control method |
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Effective date of registration: 20210210 Address after: 411100 No.28 Baishi Road, Jingkai District, Xiangtan City, Hunan Province Patentee after: WASION ENERGY INDUSTRY TECHNOLOGY Co.,Ltd. Address before: 410205 No. 468, west slope, Tongzi high tech Development Zone, Hunan, Changsha Patentee before: HUNAN LINENG TECHNOLOGY Co.,Ltd. |
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