CN106253268B - Based on more power supplys-multi-voltage grade load domestic intelligent energy router device - Google Patents
Based on more power supplys-multi-voltage grade load domestic intelligent energy router device Download PDFInfo
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- 230000005611 electricity Effects 0.000 claims abstract description 30
- 238000004146 energy storage Methods 0.000 claims abstract description 20
- 238000010248 power generation Methods 0.000 claims abstract description 11
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 230000009466 transformation Effects 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 10
- 239000003034 coal gas Substances 0.000 claims description 7
- 238000011217 control strategy Methods 0.000 claims description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- 239000003345 natural gas Substances 0.000 claims description 2
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
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- 230000002457 bidirectional effect Effects 0.000 description 1
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- 239000002737 fuel gas Substances 0.000 description 1
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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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/008—Circuit arrangements for ac mains or ac distribution networks involving trading of energy or energy transmission rights
Abstract
One kind being based on more power supplys-multi-voltage grade load domestic intelligent energy router device, including energy router, MPPT maximal power tracing DC-DC module, energy storage bi-directional DC-DC module, generator AC-DC module, distributed photovoltaic battery, gas electricity generator, static switch QF1, QF2 and Real-Time Scheduling top-level server.Energy router device of the present invention can not only realize transformation function, moreover it is possible to provide the standard interface of various electrical energy forms, be able to achieve the access of the various AC and DC power equipment including distributed power generation unit；Real-time control can be carried out to the voltage and current of each port, realize the power grids demands such as energy management, trend scheduling.The dynamic characteristic of energy router device of the present invention is good, has the function of to cope with short trouble, complete low-voltage crossing etc.；The acquisition of electric network data can be completed, the operation reserve for energy internet in larger scope provides big data foundation.
Description
Technical field
The present invention relates to one kind to be based on more power supplys-multi-voltage grade load domestic intelligent energy router device, belongs to the energy
Internet transformation of electrical energy technical field.
Background technique
It distributes and dispatches with traditional power grid centralization energy, energy can only be from power grid to the operational mode of user's one-way flow
Difference, in energy internet, the energy can in the form of peer-to-peer on the market carry out freely equity transaction and
It exchanges, user is the suppliers that energy consumers are again the energy.This open energy interaction, to the energy internet energy
Access, control and transmission propose challenge.Internet switching equipment concept is used for reference, design energy source router is as energy
Source production, consumption, the interface for transmitting infrastructure, realize input, output, conversion and the storage of different energy sources carrier.
Energy source router is made of Technics of Power Electronic Conversion and energy-storage units, communication unit and Decision Control unit three parts.
Energy stream between energy source router local area network and inside local area network carries out real time monitoring and information is collected, and logical by information
Road timely feedbacks energy stream mode.Control unit controls converters or energy storage device carries out phase according to feedback information
The energy conversion and storage movement answered, guarantee energy high quality, high reliability flowing, realize the energy between multiple distributed energy nets
Amount exchange, routing management and wind-light storage and load collaboration consumption in same local area network.
With the raising that household electricity power quality requires, power supply reliability requires higher and higher, energy router conduct
Multiple-energy-source access device, by the Optimized Operation of energy, with the minimum constraint condition of electricity price, energy router is that a kind of integrate is melted
Information technology and Technics of Power Electronic Conversion technology, the efficient electrical circuitry equipment utilized and transmit for realizing distributed energy are closed.Electric power
Electronics converter technique makes the various types of distributed generation resources of energy router, energy storage device and novel load provide required electricity
Energy interface form, including various voltages, the direct current of the magnitude of current or form of communication etc..Energy router not only can be from trunk distribution
Net obtains energy transmission to terminal user, while in the generated energy surplus of subnet, can be by extra energy feedback to backbone network.
In addition, energy router should also have the ability of local area network internal energy integration and coordinated allocation, i.e. energy in subnet is multidirectional
It flows freely.However, and not all port must all have to and fro flow of power ability, specially with the interface that is connected of load,
Only need energy output function；For special distributed energy interface, then power absorption ability is only needed, and in order to fill
Divide and utilize distributed energy, interface also needs have maximal power tracing (MPPT) function；And connecing for connection energy storage device
Mouthful, generally require energy in bidirectional flow ability.
Summary of the invention
The object of the present invention is in order to widen the integration of the local area network internal energy of energy router and coordinated allocation ability,
The present invention proposes a kind of based on more power supplys-multi-voltage grade load domestic intelligent energy router device.
Realize the technical scheme is that, based on more power supplys-multi-voltage grade load domestic intelligent energy router dress
Set including energy router, MPPT maximal power tracing DC-DC module, energy storage bi-directional DC-DC module, generator AC-DC module,
Distributed photovoltaic battery, gas electricity generator, static switch QF1, QF2 and Real-Time Scheduling top-level server.
The input terminal of the energy router passes through 380 volts of AC networks of static switch QF1 connection；Distributed photovoltaic battery
Output connection MPPT maximal power tracing DC-DC module；Energy storage device connects energy storage bi-directional DC-DC module；Gas electricity generator is defeated
Generator AC-DC module is connected out；MPPT maximal power tracing DC-DC module output end and generator AC-DC module output end
Connect energy storage bi-directional DC-DC module；Energy storage bi-directional DC-DC module is bi-directionally connected energy router；The output end of energy router
It is separately connected charging pile module, 220/380V output AC port, 5/24V output AC port.The connection of the one end static switch QF2
380V AC network end, one end connect the ac voltage output of energy router, directly use electric network source for user, will
Energy router bypass.
The ARM+FPGA key control unit of the energy router connects Real-Time Scheduling top-level server；Core control is single
Member receives the order that Real-Time Scheduling top-level server issues, and the state acquisition number of electricity consumption is sent to Real-Time Scheduling top-level server
According to.
The energy router includes isolating transformer, AC-DC rectification module, DC-AC inverter module and ARM+FPGA core
Heart control unit.Isolating transformer, AC-DC rectification module and DC-AC inverter module three-level converter are connected in series；ARM+FPGA
Key control unit is separately connected isolating transformer, AC-DC rectification module and DC-AC inverter module, controls them；
ARM+FPGA key control unit also controls MPPT maximal power tracing DC-DC module, energy storage bi-directional DC-DC module and generator
AC-DC module；ARM+FPGA key control unit also controls the alternating voltage of output DC voltage and output.
The isolating transformer realizes being isolated for energy router and alternating current, will common three-stage topology structure letter originally
Dan Hua, it is practical, cost is not only reduced by isolating transformer, and reduce the overall cost of device, while change is isolated
The two-way flow of energy may be implemented in depressor, while when reducing energy feedback, the influence to power grid.
The AC-DC rectification unit is bi-directional energy flow control, mono- in its outlet side DC bus and storage batteries D C-DC
Member, photovoltaic cell DC-DC unit, generator AC-DC unit are in parallel, and wherein storage batteries D C-DC unit realizes the charge and discharge of battery
Function, photovoltaic cell DC-DC unit realize the MPPT function of photovoltaic, and generator AC-DC unit realizes that direct current is grid-connected, battery
DC-DC unit exports DC voltage and controls as DC bus-bar voltage, and wherein the device busbar voltage setting value is 650V.
The ARM+FPGA control unit is realized by calculating power grid electricity price and natural gas electricity price in real time to photovoltaic cell
Send instructions under DC-DC unit, generator AC-DC unit, storage batteries D C-DC unit, QF1, QF2, with the minimum constraint item of electricity price
Part carries out United Dispatching.
The DC-AC rectification unit is directed energy output unit, is exchange 380V by DC voltage inversion, then leads to
Crossing output transformer difference transformation is 380V, 220V, 24V, 5V power supply, realizes all standing of all kinds of alternating voltages of family, thus
Reduce the energy loss of household charger transformation link.
The invention has the advantages that energy router device of the present invention is an open energy carrier, it can not only
Enough realize transformation function, moreover it is possible to the standard interface of various electrical energy forms be provided, be able to achieve including distributed power generation unit
Various AC and DC power equipment access；Real-time control can be carried out to the voltage and current of each port, realize energy management, tide
The power grids demands such as stream scheduling.The dynamic characteristic of energy router device of the present invention is good, has reply short trouble, completes low pressure
The functions such as pass through；Can complete the acquisition of electric network data, for energy internet in larger scope operation reserve provide big data according to
According to.
Detailed description of the invention
Fig. 1 is the overall structure block diagram of energy router device of the present invention；
Fig. 2 is Real-Time Scheduling top-level server structural schematic diagram；
Fig. 3 is output transformer device structure schematic diagram；
Fig. 4 is apparatus of the present invention control strategy schematic diagram.
Specific embodiment
The specific embodiment of the invention is as shown in the picture.
Fig. 1 is that the present embodiment is shown based on more power supplys-multi-voltage grade load domestic intelligent energy router device structure
It is intended to.It include energy router, MPPT maximum work based on more power supplys-multi-voltage grade load domestic intelligent energy router device
Rate tracks DC-DC module, energy storage bi-directional DC-DC module, generator AC-DC module, distributed energy photovoltaic cell, fuel gas generation
Machine, static switch QF1, QF2 and Real-Time Scheduling top-level server.
Real-Time Scheduling top-level server structure is as shown in Figure 2；The alternating voltage output of energy router is as shown in Figure 3.
The present embodiment is based on more power supplys-multi-voltage grade load domestic intelligent energy router device control strategy as schemed
Shown in 4.The control strategy of device is as follows:
(1) enter self-test state after device starting and be initially cut alternating current if device is faulty, QF2 is thrown at this time
Enter, QF1 is disconnected；Secondly in the trouble-free situation of self-check of device, QF1 investment, QF2 is disconnected.
(2) dispatch layer control strategy:
(A) electricity price, coal gas valence first determine whether electricity price and gas price as in real time price input FPGA+ARM controller
Relationship while on daytime, illustrate at this time for low power consumption, at this time preferential use if electricity price is less than the price of coal gas power generation
The power generation of gas-driven generator full power, while also maximal power tracing generates electricity photovoltaic battery panel, battery is as the instantaneous switching of load
Energy adjustment, if at this time load be greater than generated energy, consider further that using alternating current, if load be less than generated energy, battery is
In the case where being full of, energy back power grid；At night, illustrate preferentially to use alternating current at this time for low power consumption at this time, store simultaneously
Energy adjustment of the battery as the instantaneous switching of load.
(B) if electricity price is greater than the price of coal gas power generation, while on daytime, illustrate at this time to be peak of power consumption, at this time preferentially
It is generated electricity using gas-driven generator full power, while also maximal power tracing generates electricity photovoltaic battery panel, battery is instantaneous as load
The energy adjustment of switching considers further that if load is greater than generated energy at this time using alternating current, if load is less than generated energy, electric power storage
In the case that pond fills with, energy back power grid；At night, illustrate at this time to be peak of power consumption, at this time preferential gas-driven generator
Full power power generation, while energy adjustment of the battery as the instantaneous switching of load, Real-Time Scheduling realize the minimum final mesh of electricity price
Mark.
(3) control layer strategy, AC-DC rectification module, DC-AC inverter module, MPPT maximal power tracing DC-DC module,
Energy storage bi-directional DC-DC module is that IGBT bridge arm is realized, control layer is stablized in 650V using DC bus-bar voltage as final goal,
650V DC bus-bar voltage is supported by battery voltage first, when DC bus-bar voltage is lower than 650V, output energy is less than
Input energy, if busbar voltage illustrates greater than 650V, output energy is greater than input energy, and battery is instantaneous as DC bus
It adjusts, input power and output power is timely feedbacked into dispatch layer, realize the Real-time Balancing of energy.
Claims (5)
1. one kind is based on more power supplys-multi-voltage grade load domestic intelligent energy router device, which is characterized in that described device
Including energy router, MPPT maximal power tracing DC-DC module, energy storage bi-directional DC-DC module, generator AC-DC module, divide
Cloth photovoltaic cell, gas electricity generator, static switch QF1, QF2 and Real-Time Scheduling top-level server；The energy router
Input terminal passes through 380 volts of AC networks of static switch QF1 connection；Distributed photovoltaic battery output connection MPPT maximal power tracing
DC-DC module；Energy storage device connects energy storage bi-directional DC-DC module；Gas electricity generator output connection generator AC-DC module；
MPPT maximal power tracing DC-DC module output end connects energy storage bi-directional DC-DC module with generator AC-DC module output end；
Energy storage bi-directional DC-DC module is bi-directionally connected energy router；The output end of energy router is separately connected charging pile module, 220/
380V exports AC port, 5/24V exports AC port；The one end static switch QF2 connects 380V AC network end, one end connection
The ac voltage output of energy router directly uses electric network source for user, energy router is bypassed；
The ARM+FPGA key control unit of the energy router connects Real-Time Scheduling top-level server；Key control unit connects
The order that Real-Time Scheduling top-level server issues is received, the state acquisition data of electricity consumption are sent to Real-Time Scheduling top-level server；
The energy router includes isolating transformer, AC-DC rectification module, DC-AC inverter module and ARM+FPGA core control
Unit processed；Isolating transformer, AC-DC rectification module and DC-AC inverter module three-level converter are connected in series；ARM+FPGA core
Control unit is separately connected isolating transformer, AC-DC rectification module and DC-AC inverter module, controls them；ARM+
Fpga core control unit also controls MPPT maximal power tracing DC-DC module, energy storage bi-directional DC-DC module and generator AC-
DC module；ARM+FPGA key control unit also controls the alternating voltage of output DC voltage and output；
The isolating transformer realizes being isolated for energy router and alternating current, will originally common three-stage topology structure it is simple
Change, it is practical, cost is not only reduced by isolating transformer, and reduce the overall cost of device, while transformation is isolated
The two-way flow of energy may be implemented in device, while when reducing energy feedback, the influence to power grid.
2. according to claim 1 be based on more power supplys-multi-voltage grade load domestic intelligent energy router device, spy
Sign is that the AC-DC rectification unit is bi-directional energy flow control, mono- in its outlet side DC bus and storage batteries D C-DC
Member, photovoltaic cell DC-DC unit, generator AC-DC unit are in parallel, and wherein storage batteries D C-DC unit realizes the charge and discharge of battery
Function, photovoltaic cell DC-DC unit realize the MPPT function of photovoltaic, and generator AC-DC unit realizes that direct current is grid-connected, battery
DC-DC unit exports DC voltage and controls as DC bus-bar voltage, and wherein the device busbar voltage setting value is 650V.
3. according to claim 1 be based on more power supplys-multi-voltage grade load domestic intelligent energy router device, spy
Sign is that the ARM+FPGA control unit is realized by calculating power grid electricity price and natural gas price in real time to photovoltaic cell DC-DC
Send instructions under unit, generator AC-DC unit, storage batteries D C-DC unit, QF1, QF2, is carried out with the minimum constraint condition of electricity price
United Dispatching.
4. according to claim 1 be based on more power supplys-multi-voltage grade load domestic intelligent energy router device, spy
Sign is that the DC-AC rectification unit is directed energy output unit, is exchange 380V by DC voltage inversion, then passes through
Exporting transformer difference transformation is 380V, 220V, 24V, 5V power supply, all standing of all kinds of alternating voltages of family is realized, to subtract
The energy loss of few household charger transformation link.
5. according to claim 1 be based on more power supplys-multi-voltage grade load domestic intelligent energy router device, spy
Sign is that the control strategy of described device is as follows:
(1) enter self-test state after device starting and be initially cut alternating current if device is faulty, QF2 is put at this time, QF1
It disconnects；Secondly in the trouble-free situation of self-check of device, QF1 investment, QF2 is disconnected；
(2) dispatch layer control strategy:
(A) electricity price, coal gas valence first determine whether the pass of electricity price and gas price as in real time price input FPGA+ARM controller
System illustrates preferentially to use coal gas at this time at this time for low power consumption if electricity price is less than the price of coal gas power generation, while on daytime
The power generation of generator full power, while also maximal power tracing generates electricity photovoltaic battery panel, energy of the battery as the instantaneous switching of load
Amount is adjusted, if load is greater than generated energy at this time, is considered further that using alternating current, if load is less than generated energy, battery has filled
In the case where full, energy back power grid；At night, illustrate preferentially to use alternating current, while battery at this time at this time for low power consumption
Energy adjustment as the instantaneous switching of load；
(B) if electricity price is greater than the price of coal gas power generation, while on daytime, illustrate at this time for peak of power consumption, it is preferential at this time to use
The power generation of gas-driven generator full power, while also maximal power tracing generates electricity photovoltaic battery panel, battery is as the instantaneous switching of load
Energy adjustment, if at this time load be greater than generated energy, consider further that using alternating current, if load be less than generated energy, battery is
In the case where being full of, energy back power grid；At night, illustrate that preferential gas-driven generator expires function at this time at this time for peak of power consumption
Rate power generation, while energy adjustment of the battery as the instantaneous switching of load, Real-Time Scheduling realize the minimum final goal of electricity price；
(3) control layer strategy, AC-DC rectification module, DC-AC inverter module, MPPT maximal power tracing DC-DC module, energy storage
Bi-directional DC-DC module is that IGBT bridge arm is realized, control layer is stablized in 650V as final goal, first using DC bus-bar voltage
650V DC bus-bar voltage is supported by battery voltage, when DC bus-bar voltage is lower than 650V, output energy is less than input
Energy, if busbar voltage illustrates greater than 650V, output energy is greater than input energy, and battery is instantaneously adjusted as DC bus
Input power and output power are timely feedbacked dispatch layer, realize the Real-time Balancing of energy by section.
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