CN105914799B - V2G alternating current-direct current mixing micro-capacitance sensor power architecture - Google Patents
V2G alternating current-direct current mixing micro-capacitance sensor power architecture Download PDFInfo
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- CN105914799B CN105914799B CN201610283130.XA CN201610283130A CN105914799B CN 105914799 B CN105914799 B CN 105914799B CN 201610283130 A CN201610283130 A CN 201610283130A CN 105914799 B CN105914799 B CN 105914799B
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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
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Abstract
The present invention relates to a kind of V2G alternating current-direct current mixing micro-capacitance sensor power architectures, including direct-current grid with exchange micro-capacitance sensor, the direct-current grid includes DC bus and connects the distributed DC power supply unit of the DC bus by respective current transformer respectively, DC energy storage device, direct-current charging post and change electric battery DC charge and discharge device, the exchange micro-capacitance sensor includes ac bus and connects the exchange grid-connecting apparatus of the ac bus by its current transformer, straight AC convertor connects the DC bus between the ac bus passes through micro-capacitance sensor, photovoltaic inversion and charging pile rectification link can effectively be reduced by connecting the bulk power grid present invention by exchange grid-connecting apparatus, the construction cost and operation cost of reduction system, make battery of electric vehicle as the slow charging network pressure power of Mobile energy storage device, increase grid stability and reliability , reduce electric system operation cost.
Description
Technical field
The present invention relates to a kind of V2G alternating current-direct current mixing micro-capacitance sensor power architectures, and in particular to one kind is applied to electronic
Power architecture in terms of automobile charging and electric network coordination matching management.
Background technique
V2G(vehicle electricity interconnection mode) refer to passenger car and power grid using the control technology of energy in bidirectional flow, it is electronic
Vehicle not only unidirectionally receives power grid energy, it may also be necessary to power grid provide energy support, be the following smart grid it is strong after
Shield, the installed capacity in power grid in China in 2015 are 2000GW, and automotive society ownership is 1.6 hundred million, and annual automobile increment is
20000000, each power of vehicle is calculated according to 50KW, 20000000*50kw=1000GW, that is to say, that annual newly-increased automobile
Power is equivalent to the installed capacity of half of power grid, and big data shows that the synthesis utilization rate of automobile only has 5%, and daily one hour, entirely
Social power of vehicle capacity is 4 times of electrical network capacity, and stored energy capacitance is the 20% of grid generation amount, and general generator utilization rate
60%, annual 4800 hours, above data shows the energy storage scale of construction of future automobile far more than other any energy storage modes.
V2G technology is the direction of new-energy automobile, by V2G technology, can smoothly electric car be charged to normal grid
The impact of (can be described as bulk power grid or referred to as power grid), not only can make charging time and charge power controllable, may be used also when necessary
Reversely to discharge to power grid, to alleviate the peak pressure of power grid；V2G technology also helps roadside assistance, when an electric vehicle
It is out of power not need to be towed back to, only need two V2G electric vehicles that can realize quickly to filling；Using the electronic vapour of V2G technology
Vehicle is suitble to do disaster area breakdown lorry, tool car, and the V2G electric car of the full electricity of a 50kwh can be supplied one family one week
Electricity.
The Development of Electric Vehicles of currently employed V2G technology is rapid, but power grid construction and electrically-charging equipment construction are serious backward.It is main
Show: 1, distribution network construction is asynchronous, and charging pile and charging station access power grid are difficult；2, charging pile and existing parking stall
Conflict；3, charging rate is slow, needs to wait in line；4 electrically-charging equipment sites are insufficient, and especially remote districts are less.
Summary of the invention
In order to solve the drawbacks described above of the prior art, the present invention provides a kind of V2G alternating current-direct current mixing micro-capacitance sensor power supply bodies
Architecture, by distributed new power generation, electric car charging, power grid energy storage and grid power exchange, management is got up well,
Impact with the charging of smooth electric car to power grid, and electric vehicle is changed into battery and on-vehicle battery as energy storage means, it improves
Micro-capacitance sensor improves the economic benefit of micro-capacitance sensor to the frequency modulation and peak modulation capacity of bulk power grid, improve bulk power grid safety and
Stability.
The present invention realizes that the technical solution of above-mentioned purpose is:
A kind of V2G alternating current-direct current mixing micro-capacitance sensor power architecture comprising direct-current grid with exchange micro-capacitance sensor,
The direct-current grid includes:
DC bus, the DC bus connects bulk power grid by direct current grid-connecting apparatus, alternatively, the DC bus passes through
Direct current grid-connecting apparatus connects bulk power grids with two approach of micro-capacitance sensor are exchanged, and the direct current grid-connecting apparatus is mainly by interconnected straight
Grid-connected converter and direct current switching device is flowed to constitute, the direct current switching device can under the control of management control system and/
Or according to the connection between the switching normal ON or cutting direct-current grid and bulk power grid of setting, the direct current grid-connected converter
For bidirectional converter, can power transmission standard implementation under the control of management control system and/or according to setting from bulk power grid to
Direct-current grid power transmission or from direct-current grid to bulk power grid power transmission；
Distributed DC power supply unit, including one or more distributed DC powers, the distributed DC is for Denso
Distributed DC power in setting accesses the DC bus by distributed DC power current transformer, and the electric energy of generation is sent into
DC bus；
DC energy storage device is mainly made of energy-storage battery group and DC energy storage current transformer, the DC energy storage device
Energy-storage battery group connects the DC bus by the DC energy storage current transformer, and the DC energy storage current transformer is Bidirectional variable-flow
Device can carry out the DC charging of energy-storage battery group (by DC bus to energy-storage battery group under the control of management control system
Charging) or direct-current discharge (from energy-storage battery group to DC bus power transmission)；
Direct-current charging post (electric vehicle DC charge and discharge device, abbreviation charging pile) is equipped with electric vehicle DC charge and discharge unsteady flow
Device, one end of the electric vehicle DC charge and discharge electric converter connect the DC bus, and the other end is connected with to be filled with electric vehicle
The matched electric vehicle interface of electric staking mouth (the charging pile joint in the charge cable including electric vehicle), the electric vehicle DC fill
Electric discharge current transformer is bidirectional converter, can carry out electricity under the control of management control system or according to external charge and discharge instruction
The DC charging (from DC bus to charging battery of electric vehicle) or direct-current discharge of motor-car battery are (from battery of electric vehicle to direct current mother
Line power transmission)；
Electric battery DC charge and discharge device is changed, it is described to change electric battery DC equipped with changing electric battery DC charge and discharge electric converter
One end of charge and discharge electric converter connects the DC bus, and the other end is connected with and can connect electric vehicle to change changing for battery electric
Pond interface arrangement, it is described change electric battery DC charge and discharge electric converter be bidirectional converter, can be in the control of management control system
DC charging that is lower or changing battery according to external charge and discharge instruction progress electric vehicle (is filled from DC bus to battery is changed
Electricity) or direct-current discharge (from changing battery to DC bus power transmission),
The exchange micro-capacitance sensor includes:
Ac bus, straight AC convertor connects the DC bus between the ac bus passes through micro-capacitance sensor, passes through friendship
Flow grid-connecting apparatus connect bulk power grid, with realize respectively exchange micro-capacitance sensor and direct current net power grid between connection and exchange micro-capacitance sensor and
Connection between bulk power grid, straight AC convertor is bidirectional converter between the micro-capacitance sensor, can be in the control of management control system
The lower and/or power transmission standard implementation according to setting of system is from direct-current grid to exchange micro-capacitance sensor power transmission or from exchange micro-capacitance sensor to straight
Flow micro-capacitance sensor power transmission；
Grid-connecting apparatus is exchanged, is mainly constituted by exchange grid-connected converter interconnected with switching device is exchanged, the friendship
Flowing switching device can be under the control of management control system and/or according to setting condition connection or cutting exchange micro-capacitance sensor and greatly
Connection between power grid, the exchange grid-connected converter be bidirectional converter, can under the control of management control system and/or
Power transmission standard implementation according to setting is from bulk power grid to exchange micro-capacitance sensor power transmission or from exchange micro-capacitance sensor to bulk power grid power transmission；
The ac bus is connected with or is not connected to AC load；
The ac bus is connected with or is not connected to distributed AC power source.
Against the background of the prior art, the distributed DC power usually may include distributed photovoltaic power generation system, institute
Stating distributed photovoltaic power generation system can be set according to actual needs, for example, its solar panel (photovoltaic module) is arranged
In bicycle shed or/and roof.
The AC load may include alternating-current charging pile (electric vehicle exchanges charge and discharge device, abbreviation charging pile), described
Alternating-current charging pile is equipped with electric vehicle and exchanges charge and discharge electric converter, and the electric vehicle exchanges described in one end connection of charge and discharge electric converter
Ac bus, the other end are connected with and the charging pile interface of electric vehicle (the charging pile joint in the charge cable including electric vehicle)
Matched electric vehicle interface, the electric vehicle exchange charge and discharge electric converter is bidirectional converter, can be in management control system
The lower or AC charging according to external charge and discharge instruction progress battery of electric vehicle of control (is filled from ac bus to battery of electric vehicle
Electricity) or alternating current discharge (from battery of electric vehicle to ac bus power transmission).
The AC load may include exchange energy storage device, mainly by energy-storage battery group and exchange energy accumulation current converter structure
At the energy-storage battery group of the exchange energy storage device connects the ac bus, the friendship by the exchange energy accumulation current converter
Stream energy accumulation current converter is bidirectional converter, and the AC charging of energy-storage battery group can be carried out under the control of management control system
(being charged from ac bus to energy-storage battery group) or alternating current discharge (from energy-storage battery group to ac bus power transmission).
The AC load may include changing battery exchange charge and discharge device, exchange charge and discharge unsteady flow equipped with battery is changed
Device, described one end for changing battery exchange charge and discharge electric converter connect the ac bus, and the other end, which is connected with, can connect electricity
Motor-car changes the electric battery interface apparatus of changing of battery, and the battery exchange charge and discharge electric converter that changes is bidirectional converter, can
Under the control of management control system or electric vehicle, which is carried out, according to external charge and discharge instruction changes the AC charging of battery (by handing over
Stream bus charges to battery is changed) or alternating current discharge (from changing battery to ac bus power transmission).
The management control system may include master control set and be set to the direct-current grid with it is described exchange it is micro-
Several detection devices for being used to obtain detection signal in power grid, the master control set and each detection device communicate to connect,
Analytic operation is carried out to the detection signal for being originated from the detection device, each current transformer and each fling-cut switch are controlled according to control strategy
The working condition of device.
The management control system is also provided with communication module and is communicated by the communication module with remote server
Connection and/or progress network data transmission.
The energy-storage battery of the energy-storage battery group can use lithium battery, lead carbon battery, supercapacitor and flow battery
In any one or more.
The direct current switching device and/or exchange switching device can use corresponding direct current or exchange gateway interface cabinet
Form.
Preferably, the electric vehicle of part or all of access system is changed into battery and is used for energy storage adjusting, filled by controlling it
Power consumption and total amount of powering in the net of micro-capacitance sensor (direct-current grid and/or exchange micro-capacitance sensor) where electricity and electric discharge are adjusted, work as electricity
When the energy storage adjusting that the energy storage regulating power that motor-car changes battery can satisfy micro-capacitance sensor requires, local (in micro-capacitance sensor) is omitted
Energy storage device does not omit local energy storage device, (does not omit local energy storage energy storage when being equipped with energy storage device in micro-capacitance sensor
Device) when, preferentially net using the energy storage device adjusting of interior power consumption total amount and total amount of powering；
Preferably, the battery of electric vehicle (on-vehicle battery) of part or all of access system is adjusted for energy storage, passes through control
It makes it and is charged and discharged power consumption and power supply total amount in the net for adjusting place micro-capacitance sensor, according to external command or according to established standards
The battery of electric vehicle for being not used in energy storage adjusting is not used in energy storage adjusting, described to be not used in the electronic of energy storage adjusting according to established standards
Vehicle battery includes at least the battery of electric vehicle using the charging of fast charge mode, when being equipped with energy storage device and/or for storing up in micro-capacitance sensor
When the electric vehicle being adjustable changes battery, it is preferential using energy storage device and/or the electric vehicle adjusted for energy storage change battery into
Row nets the adjusting of interior power consumption total amount and power supply total amount；
Preferably, the economic principle according to electrical safety and micro-capacitance sensor itself, by switching on or off and bulk power grid
Connection realization isolated power grid is incorporated into the power networks,
Preferably, under isolated power grid state (i.e. direct-current grid with the state for exchanging micro-capacitance sensor and not accessing bulk power grid),
According to the economic principle of micro-capacitance sensor itself, power consumption total amount and power supply total amount in netting are adjusted by energy storage capacity in netting, is made in net
Power consumption total amount and total amount phase equilibrium of powering, and preferred arrangement electricity consumption in the following order: the first sequence is the electricity in fast charge state
Motor-car battery；Second sequence is the battery of electric vehicle in trickle charge state；Third sequence is that the electric vehicle adjusted for energy storage changes
Battery；4th sequence is energy-storage battery group, meanwhile, the electric vehicle for setting certain proportion or quantity changes battery to be not used in storage
The electric vehicle being adjustable changes battery, and is included in the first sequence or the second sequence of electricity consumption of giving priority in arranging for, or part arranges
Enter the first sequence, is partially included in the second sequence；
Preferably, under grid-connected state (i.e. direct-current grid and/or the state of exchange micro-capacitance sensor access bulk power grid),
It is bulk power grid progress frequency modulation and/or tune by adjusting power consumption total amount and power supply total amount in net according to the economic principle of microgrid itself
Peak, in bulk power grid, frequency declines or when there is downward trend due to load is excessive, reduce micro-capacitance sensor to the electricity consumption of bulk power grid or
Increase power transmission amount of the micro-capacitance sensor to bulk power grid, when frequency increases or raising trend occurs bulk power grid due to load is too small, increases
Micro-capacitance sensor reduces the electricity consumption or reduction power transmission amount of the micro-capacitance sensor to bulk power grid of bulk power grid in the peak of power consumption of bulk power grid
Micro-capacitance sensor adds the power transmission amount to bulk power grid to the electricity consumption or increasing micro-capacitance sensor of bulk power grid, in the low power consumption of bulk power grid, increases
Electricity consumption or reduction power transmission amount from micro-capacitance sensor to bulk power grid of the micro-capacitance sensor to bulk power grid.
The invention has the benefit that
The electric energy that distributed power supply system is generated accesses direct-current grid, cooperates energy-storage system and electric automobile charging pile
DC micro power grid system is formed, solves the problems, such as electric car distribution network construction；Pass through setting quick-inflating type charging pile and trickle charge
Formula charging pile solves the charging problems of user；Bulk power grid is connected by exchange micro-capacitance sensor, solves the problems, such as micro-grid connection, it is real
The now connection between bulk power grid increases reliability of operation of the present invention, at the same enable the invention to switch at any time it is grid-connected or from
The net method of operation, the method for operation are flexible；The distributed micro-grid system of the present invention solves the problems, such as electrically-charging equipment site deficiency,
Be conducive to the universal of cleaning vehicle.
Battery of electric vehicle (on-vehicle battery) can be used and change battery as Mobile energy storage device and delay charging network pressure power, from
And support is provided for the intermittent renewable energy of distributed power supply system, lower CO2Discharge, improves distributed power supply system
Grid-connected ability.The present invention can provide such as peak regulation or frequency modulation ancillary service for power grid simultaneously, increase grid stability and reliably
Property, reduce electric system operation cost.
Electric current in direct-current grid is in the form of direct current between distributed power supply system and DC bus, energy storage
It is conducted between system and DC bus, between electric automobile charging pile and DC bus.It is directly connected in the form of direct current
Photovoltaic inversion and charging pile rectification link can effectively be reduced in the DC bus of direct-current grid, reduce the construction of system at
This and operation cost, raising system effectiveness are increased economic efficiency.
Detailed description of the invention
Fig. 1 is frame structure schematic diagram of the invention；
Fig. 2 is power architecture schematic diagram of the invention.
Specific embodiment
Referring to Fig. 1 to Fig. 2, Typical Disposition of the invention are as follows:
Photovoltaic+energy storage+electrically-charging equipment+direct-current grid+exchange micro-capacitance sensor+management control system
Photovoltaic power generation: distributed photovoltaic power generation system (abbreviation photovoltaic) is the main distributed DC under prior art background
Power supply, can be using generating power for their own use, by the way of remaining electricity online, based on generating power for their own use, supplemented by power grid is adjusted.
Photovoltaic can be the diversified forms such as photovoltaic bicycle shed, roof photovoltaic, micro-capacitance sensor be accessed nearby, as in direct-current grid
Power supply unit, can be used for for electric car charging.
Middle-size and small-size photovoltaic system, photovoltaic capacity are advisable with 30kW-500kW；Large scale system is 500kW or more, or megawatt
The photovoltaic power generation of grade.
Energy storage device: the energy storage dress of various ways can be configured for micro-capacitance sensor according to the prior art or other possible technologies
It sets (energy-storage system), energy-storage battery group can use the technology of any suitable, such as lithium battery, lead carbon battery, super capacitor
Device and flow battery etc..
The batteries of electric automobile (electric vehicle changes battery) for changing battery system can be included in energy-storage system, will part or
Whole electric vehicles change battery and adjust for energy storage, as the device of standby energy storage, dedicated energy storage device regulating power not
It when sufficient, adjusted for energy storage, can be set as needed a certain proportion of battery that changes and be not used in energy storage, this part changed electric
Pond is in charged stand-by state, and to replace at any time, stand-by state changes electric number of batteries or ratio according to actual conditions
It determines, usually should ensure that the needs of replacement battery.
After the scale for changing battery reaches certain degree, if only being enough to realize that energy storage is adjusted using battery is changed
It is required that, it is convenient to omit (being not provided with) energy storage device, whole energy-storage battery groups are all made of the form for changing battery in other words.
The charge and discharge device of battery of electric vehicle: for direct-current grid, the dedicated DC/DC of configuring direct current micro-capacitance sensor is special
It may include fast charge and trickle charge two kinds of forms with charging pile, it, can also be on the same charging pile according to the development of technology
Two kinds of charge modes of fast charge and trickle charge are set, to improve transfer efficiency, reduce equipment cost.
For exchanging micro-capacitance sensor, the configuration exchange common ac/dc charging pile of micro-capacitance sensor exchanges the charging pile of micro-capacitance sensor
Also it may include fast charge and trickle charge two kinds of forms, according to the development of technology, can also be arranged on the same charging pile fast
It fills and two kinds of charge modes of trickle charge.
Direct-current grid and DC bus: it is micro- that photovoltaic, energy storage device and electric vehicle can access direct current in a manner of direct current
Corresponding current transformer is arranged in power grid, a variety of different devices, and the DC bus of direct-current grid is accessed by current transformer, for example,
The DC/DC converter of photovoltaic, the DC/DC bidirectional converter of energy storage device, what electric automobile charging pile used
DC/DC bidirectional converter, and corresponding DC power distribution cabinet, protection and measuring equipment is set as needed etc., it is various two-way
Current transformer can carry out the power transmission of any direction under the control of management control system, so that respective battery can fill
Electricity can also send out electric energy, for use in energy storage adjusting.
Exchange micro-capacitance sensor and ac bus: exchange micro-capacitance sensor as the intermediate link between direct-current grid and bulk power grid,
Direct-current grid is connected by dedicated AC/DC converter, by gateway interface cabinet (containing high-speed switch) in PCC (Point of
Common Coupling, micro-grid connection PCC) at connect with bulk power grid, exchange micro-capacitance sensor itself can be with AC load, including one
As alternating-current charging pile, ac/dc charging pile etc..
Management control system: having the observing and controlling function that alternating current-direct current mixes micro-capacitance sensor, has flat with higher level's information management operation
Platform interaction capabilities.
Including energy management (EMS): passing through record, statistics, the operation power data of analysis system, integrated management tune
Generation of electricity by new energy, energy storage, power grid energy exchange, the charging and discharging of electric car are spent, so that the operation of system reaches best shape
State realizes preferable economic benefit.
The interface of cloud: module (interface) by wireless communication manages platform, generation of electricity by new energy management with higher level's electric car
The remote server of platform, smart grid monitor supervision platform etc. is associated, and can access network, by network and each management terminal into
Row data interaction, to realize that user remotely monitors, manages.
Present architecture and corresponding work can be realized using the prior art of any suitable and other possible technologies
Mode.Such as:
(1) DC micro-electric network technology is used, photovoltaic generating system, energy storage device, electric automobile charging pile etc. are all connected
On DC bus, the voltage range of DC bus is DC600V to reduce photovoltaic inversion and charging pile rectification link, reduces system
The construction cost and operation cost of system improve system effectiveness, increase economic efficiency；
(2) at present that electric car with the highest lead carbon battery (energy-storage system) of cost performance, can be used from now on will be retired sharp again
With battery, as mating energy storage, to reduce cost；It, can also be into when photovoltaic does not generate electricity after configuring energy-storage system
Row charging business；
(3) if following use intelligent battery technology, rentable battery operation mode also obtains so that electric car changes electric mode
To large-scale promotion application, then it can use photovoltaic power generation directly to battery charging is changed, system is more succinct, efficient；
(4) if electric car electric charging and deposited, in the case where micro-grid system photovoltaic power generation, electric car is preferentially given
Charging can then reduce energy storage configuration, improve economy to battery charging is changed when no charge requirement；
(5) based on above-mentioned typical scenario, the V2G micro-grid system Combination Design of different scales can be carried out.
(6) along highway, service area periphery can build the new-type compound V2G micro-capacitance sensor system of large-scale MW class
System.
The operational mode of the direct-current grid are as follows: the distributed power supply system is female to direct current by the electrical energy transportation of generation
Line, when electric car charging, the electric energy in the direct-current grid supplies electric automobile charging pile preferentially to meet electronic vapour
Vehicle charging uses, and especially when using fast charge mode charging, battery of electric vehicle is usually not involved in energy storage adjusting.Charge mode can
It is limited with the charge mode by charging pile itself, the charging pile that can use fast charge and trickle charge both of which also can be set, by
Battery of electric vehicle under trickle charge mode does not often need all to charge in the All Time of access, such as the vehicle parked whole night
, it may be necessary to the battery of electric vehicle of these batteries access charging pile is included in energy storage regulating system, it can be by charging
Corresponding button or input unit are set in stake, when whether input allows for the battery to be included in energy storage adjusting and/or input parking
Between (time span) and/or answer the related datas such as charged time (time of using cars), or even when can also input vehicle next time
The charge volume or stroke mileage needed is included in energy storage adjusting within the corresponding slack time by management control system, and is protected
It demonstrate,proves (or charge volume meets requirement) that the battery when driving is filled with electricity.When scale greatly to a certain extent after, this energy storage
Adjusting the stable operation for bulk power grid has practical significance, such as the frequency modulation for bulk power grid.When no electric car charges,
Electric energy in the direct-current grid, which preferentially supplies, to be changed battery (including battery pack) and charges, and changes battery to meet electric vehicle
Demand, then charge again to energy-storage battery group, guarantee the normal operation of the direct-current grid as power storage, most
It afterwards again will be in remaining electrical energy transportation to the exchange micro-capacitance sensor.Certain condition can be set, energy storage adjusting is included in control
Energy-storage battery, change battery and part trickle charge state battery of electric vehicle (if appropriate) charge and discharge equalization point and/
Or charge and discharge mode, to realize that the maximum economic benefit of micro-capacitance sensor itself and stablizing for network system (micro-capacitance sensor and bulk power grid) are transported
Row.It is included in energy storage adjusting by the way that battery etc. will be changed as a result, the configuration of energy storage device can be efficiently reduced, also complied with simultaneously
Economic requirement makes benefit.
Electrical energy transportation between micro-capacitance sensor and bulk power grid be it is two-way, bulk power grid can receive exchange micro-capacitance sensor transmitting
Electric energy, also can to the exchange micro-capacitance sensor convey electric energy.From there through grid-connected with bulk power grid, it can make up micro-capacitance sensor
The deficiency of self generating ability, it is possible to by the energy storage regulating power of micro-capacitance sensor, realize frequency modulation and peak regulation to bulk power grid.
The power architecture is additionally provided with management control system, and the management control system includes master control set and setting
Lead in the direct-current grid with the detection device in micro-capacitance sensor in each equipment, the master control set and the detection device is exchanged
Letter connection.The management control system can be realized direct-current grid with exchange the observing and controlling function of micro-capacitance sensor, by recording, uniting
Distributed power supply system, energy-storage system, electric automobile charging pile are dispatched in the operation power data of meter, analysis system, integrated management
And the energy exchange between direct-current grid and exchange micro-capacitance sensor is realized preferable so that the operation of system reaches optimum state
Economic benefit.
The management control system is additionally provided with communication module, and the management control system and remote server communicate to connect.
The remote server includes electric car management platform, generation of electricity by new energy management platform and smart grid monitor supervision platform, is passed through
Telecommunication realizes user's remote monitoring and administration.
Each current transformer and management control system and control mode can using the prior art of any suitable or its
His technology.The sensor or signal pickup assembly of any suitable can be used, it is even big using the coherent signal in system everywhere
The coherent signal of power grid, be sent into management control system carry out analytic operation, with according to the relevant criterion of operation result and setting into
Row control, when receiving external command, usually can preferentially be adapted to external command.
It is disclosed by the invention it is each preferably with optional technological means, unless otherwise indicated and one preferably or can selecting technology hand
Section is that further limiting for another technological means is outer, can form several different technical solutions in any combination.
Claims (9)
1. a kind of V2G alternating current-direct current mixing micro-capacitance sensor power architecture, it is characterised in that including direct-current grid with exchange micro- electricity
Net,
The direct-current grid includes:
DC bus, the DC bus connects bulk power grid by direct current grid-connecting apparatus, alternatively, the DC bus passes through direct current
Grid-connecting apparatus with exchange micro-capacitance sensor two approach connection bulk power grids, the direct current grid-connecting apparatus mainly by direct current interconnected simultaneously
Net current transformer and direct current switching device are constituted, the direct current switching device can under the control of management control system and/or according to
According to the connection between the switching normal ON or cutting direct-current grid and bulk power grid of setting, the direct current grid-connected converter is double
To current transformer, can power transmission standard implementation under the control of management control system and/or according to setting from bulk power grid to direct current
Micro-capacitance sensor power transmission or from direct-current grid to bulk power grid power transmission；
Distributed DC power supply unit, including one or more distributed DC powers, in the distributed DC power supply unit
Distributed DC power the DC bus is accessed by distributed DC power current transformer, the electric energy of generation is sent into direct current
Bus；
DC energy storage device is mainly made of energy-storage battery group and DC energy storage current transformer, the energy storage of the DC energy storage device
Battery pack connects the DC bus by the DC energy storage current transformer, and the DC energy storage current transformer is bidirectional converter,
The DC charging or direct-current discharge of energy-storage battery group can be carried out under the control of management control system；
Direct-current charging post, is equipped with electric vehicle DC charge and discharge electric converter, and one end of the electric vehicle DC charge and discharge electric converter connects
The DC bus is connect, the other end is connected with the electric vehicle interface with the charging pile interface kit of electric vehicle, and the electric vehicle is straight
Stream charge and discharge electric converter is bidirectional converter, can under the control of management control system or according to external charge and discharge instruct into
The DC charging or direct-current discharge of row battery of electric vehicle；
Electric battery DC charge and discharge device is changed, it is described to change electric battery DC charge and discharge equipped with changing electric battery DC charge and discharge electric converter
One end of electric converter connects the DC bus, and the other end is connected with to connect electric vehicle and change the battery that changes of battery and connect
Mouthful device, described to change electric battery DC charge and discharge electric converter be bidirectional converter, can under the control of management control system or
Charge and discharge instruction according to outside carries out DC charging or direct-current discharge that electric vehicle changes battery,
The exchange micro-capacitance sensor includes:
Ac bus, straight AC convertor connects the DC bus between the ac bus passes through micro-capacitance sensor, by exchanging simultaneously
Net device connects bulk power grid, to realize the connection between exchange micro-capacitance sensor and direct current net power grid respectively and exchange micro-capacitance sensor and big electricity
Connection between net, straight AC convertor is bidirectional converter between the micro-capacitance sensor, can be under the control of management control system
And/or the power transmission standard implementation according to setting is micro- from direct-current grid to exchange micro-capacitance sensor power transmission or from exchange micro-capacitance sensor to direct current
Grid transmission；
Grid-connecting apparatus is exchanged, is mainly constituted by exchange grid-connected converter interconnected with switching device is exchanged, the exchange is thrown
Cutting apparatus can be under the control of management control system and/or according to connection or the cutting exchange micro-capacitance sensor and bulk power grid of imposing a condition
Between connection, the exchange grid-connected converter is bidirectional converter, can be under the control of management control system and/or foundation
The power transmission standard implementation of setting is from bulk power grid to exchange micro-capacitance sensor power transmission or from exchange micro-capacitance sensor to bulk power grid power transmission；
The ac bus is connected with or is not connected to AC load；
The ac bus is connected with or is not connected to distributed AC power source,
The electric vehicle of part or all of access system is changed into battery and is used for energy storage adjusting, is charged and discharged adjusting by controlling its
Power consumption and power supply total amount in the net of place micro-capacitance sensor, when the energy storage regulating power that electric vehicle changes battery can satisfy micro-capacitance sensor
Energy storage adjusting when requiring, omit local energy storage device or do not omit local energy storage device, when being equipped with storage in micro-capacitance sensor
When energy device, preferentially net using the energy storage device adjusting of interior power consumption total amount and total amount of powering；
The battery of electric vehicle of part or all of access system is used to energy storage to adjust, is charged and discharged where adjusting by controlling it
Power consumption and power supply total amount, the electric vehicle of energy storage adjusting is not used according to external command or according to established standards in the net of micro-capacitance sensor
Battery is not used in energy storage adjusting, and the battery of electric vehicle for being not used in energy storage adjusting according to established standards is included at least using fast charge
The battery of electric vehicle of mode charging, when the electric vehicle for being equipped with energy storage device in micro-capacitance sensor and/or adjusting for energy storage changes battery
When, the preferential electric vehicle using energy storage device and/or for energy storage adjusting changes battery and carries out netting interior power consumption total amount and power total
The adjusting of amount；
According to the economic principle of electrical safety and micro-capacitance sensor itself, by switching on or off the connection realization isolated network with bulk power grid
It runs or is incorporated into the power networks,
Under isolated power grid state, according to the economic principle of micro-capacitance sensor itself, it is total that power consumption in netting is adjusted by energy storage capacity in netting
Amount and power supply total amount make the power consumption total amount in net and total amount phase equilibrium of powering, and preferred arrangement electricity consumption in the following order: first is suitable
Sequence is the battery of electric vehicle in fast charge state；Second sequence is the battery of electric vehicle in trickle charge state；Third sequence is use
Battery is changed in the electric vehicle that energy storage is adjusted；4th sequence is energy-storage battery group, meanwhile, set the electronic of certain proportion or quantity
Vehicle change battery be not used in energy storage adjusting electric vehicle change battery, and be included in electricity consumption of giving priority in arranging for first sequence or
Second sequence, or part are included in the first sequence, are partially included in the second sequence；
Under grid-connected state, according to the economic principle of microgrid itself, it is by adjusting power consumption total amount and power supply total amount in net
Bulk power grid carries out frequency modulation and/or peak regulation, when frequency declines or downward trend occurs bulk power grid due to load is excessive, reduces micro- electricity
Net is to the electricity consumption of bulk power grid or increases power transmission amount of the micro-capacitance sensor to bulk power grid, in bulk power grid due to load is too small frequency increase or
When there is raising trend, increases micro-capacitance sensor to the electricity consumption of bulk power grid or reduce power transmission amount of the micro-capacitance sensor to bulk power grid, in big electricity
When the peak of power consumption of net, reduces micro-capacitance sensor and the power transmission amount to bulk power grid is added to the electricity consumption of bulk power grid or increasing micro-capacitance sensor, in big electricity
When the low power consumption of net, increases micro-capacitance sensor to the electricity consumption of bulk power grid or reduce power transmission amount of the micro-capacitance sensor to bulk power grid.
2. V2G alternating current-direct current mixing micro-capacitance sensor power architecture as described in claim 1, it is characterised in that the distributed direct
Galvanic electricity source includes distributed photovoltaic power generation system.
3. V2G alternating current-direct current mixing micro-capacitance sensor power architecture as described in claim 1, it is characterised in that the AC load
Including alternating-current charging pile, the alternating-current charging pile is equipped with electric vehicle and exchanges charge and discharge electric converter, and the electric vehicle exchanges charge and discharge
One end of current transformer connects the ac bus, and the other end is connected with to be connect with the electric vehicle of the charging pile interface kit of electric vehicle
Mouthful, the electric vehicle exchange charge and discharge electric converter is bidirectional converter, can be under the control of management control system or according to outer
The charge and discharge instruction in portion carries out AC charging or the alternating current discharge of battery of electric vehicle.
4. V2G alternating current-direct current mixing micro-capacitance sensor power architecture as claimed in claim 3, it is characterised in that the AC load
It including exchanging energy storage device, is mainly made of energy-storage battery group and exchange energy accumulation current converter, the energy storage of the exchange energy storage device
Battery pack connects the ac bus by the exchange energy accumulation current converter, and the exchange energy accumulation current converter is bidirectional converter,
AC charging or the alternating current discharge of energy-storage battery group can be carried out under the control of management control system.
5. V2G alternating current-direct current mixing micro-capacitance sensor power architecture as claimed in claim 4, it is characterised in that the AC load
Including changing battery exchange charge and discharge device, equipped with battery exchange charge and discharge electric converter is changed, the battery that changes exchanges charge and discharge
One end of electric converter connects the ac bus, and the other end is connected with to connect electric vehicle and change the battery that changes of battery and connect
Mouthful device, the battery exchange charge and discharge electric converter that changes is bidirectional converter, can under the control of management control system or
Charge and discharge instruction according to outside carries out the AC charging that electric vehicle changes battery.
6. the V2G alternating current-direct current mixing micro-capacitance sensor power architecture as described in any one of claim 1-5, it is characterised in that
The management control system includes master control set and is set to the direct-current grid and is used for described exchange in micro-capacitance sensor
Several detection devices of detection signal are obtained, the master control set and each detection device communicate to connect, to from the inspection
The detection signal for surveying device carries out analytic operation, and the work shape of each current transformer and each switching device is controlled according to control strategy
State.
7. V2G alternating current-direct current mixing micro-capacitance sensor power architecture as claimed in claim 6, it is characterised in that the management control
System is additionally provided with communication module and communicates to connect and/or carry out network data biography by the communication module and remote server
It is defeated.
8. the V2G alternating current-direct current mixing micro-capacitance sensor power architecture as described in any one of claim 1-5, it is characterised in that
The energy-storage battery of the energy-storage battery group is using any one in lithium battery, lead carbon battery, supercapacitor and flow battery
Or it is a variety of.
9. the V2G alternating current-direct current mixing micro-capacitance sensor power architecture as described in any one of claim 1-5, it is characterised in that
The direct current switching device and/or exchange switching device use corresponding direct current or exchange the form of gateway interface cabinet.
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