CN205753442U - V2G two-way AC-DC conversion current transformer - Google Patents
V2G two-way AC-DC conversion current transformer Download PDFInfo
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- CN205753442U CN205753442U CN201620385964.7U CN201620385964U CN205753442U CN 205753442 U CN205753442 U CN 205753442U CN 201620385964 U CN201620385964 U CN 201620385964U CN 205753442 U CN205753442 U CN 205753442U
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Abstract
This utility model relates to a kind of V2G two-way AC-DC conversion current transformer, it includes operating circuit, signal acquisition circuit and control circuit, described operating circuit includes the three-phase inverter bridge circuit being connected with dc bus, the isolating transformer being connected with ac bus and the filter circuit being arranged between described three-phase inverter bridge circuit and isolating transformer, the control output of described control circuit connects described inverter circuit, described signal acquisition circuit connects each parts in described operating circuit, described signal acquisition circuit accesses described control circuit, described three-phase inverter bridge circuit includes the bridge arm unit that three tunnels are arranged in parallel, each described bridge arm unit is by two power switch pipe compositions being arranged in series.In this utility model realizes micro-capacitance sensor by the design of rational structure and control mode, two-way alternating current-direct current energy is changed, and maintains ac bus and the voltage of dc bus, improves the work efficiency of V2G alternating current-direct current mixing micro-capacitance sensor.
Description
Technical field
This utility model relates to a kind of V2G two-way AC-DC conversion current transformer, and the friendship being mainly used in employing V2G technology is straight
The conversion and control of electric energy between ac bus and dc bus in stream mixing micro-capacitance sensor.
Background technology
V2G(car electricity interconnection mode) refer to that passenger car and electrical network use the control technology of energy in bidirectional flow, electronic
Car the most unidirectional reception power grid energy, it may also be necessary to provide energy to support to electrical network, be following intelligent grid strong after
Shield.V2G technology is the direction of new-energy automobile, by V2G technology, can smooth the charging electric vehicle impact to electrical network, no
Charging interval and charge power only can be made controlled, it may also be necessary to reversely discharge to electrical network, thus alleviate the peak of electrical network
Pressure.
The development of V2G technology makes Development of Electric Vehicles rapid, thus drives the alternating current-direct current mixing micro-capacitance sensor using V2G technology
Development.Traditional AC-DC conversion current transformer can not be at isolated power grid and be incorporated into the power networks between two kinds of mode of operations and carry out switchback
Change, and the setting of active power or reactive power can only be realized, therefore use traditional AC-DC conversion current transformer will shadow
Ring the work efficiency of V2G alternating current-direct current mixing micro-capacitance sensor.
Summary of the invention
In order to overcome the drawbacks described above under prior art, the purpose of this utility model is to provide a kind of two-way friendship of V2G straight
Current transformer is changed in circulation, and this current transformer solves deficiency pointed in background technology, is designed and controlling party by rational structure
Formula is the conversion of two-way alternating current-direct current energy in realizing micro-capacitance sensor, maintains ac bus and the voltage of dc bus, improves V2G alternating current-direct current and mixes
Close the work efficiency of micro-capacitance sensor.
The technical solution of the utility model is:
A kind of V2G two-way AC-DC conversion current transformer, including operating circuit, signal acquisition circuit and for controlling described work
Make the control circuit of circuit working state, three-phase inverter bridge circuit that described operating circuit includes being connected with dc bus,
The isolating transformer being connected with ac bus and the filter being arranged between described three-phase inverter bridge circuit and isolating transformer
Wave circuit, the control output of described control circuit connects described inverter circuit, and described signal acquisition circuit connects described work electricity
Each parts in road, the duty of each parts of Real-time Collection, described signal acquisition circuit is connected with described control circuit
Connect.
Preferably, direct current arrester, direct current interruption it are sequentially provided with between described dc bus and three-phase inverter bridge circuit
Device, DC fuse, D.C. contactor and DC filter, described dc bus connects has direct current precharging circuit and direct current to release
Circuit.
Preferably, it is sequentially provided with alternating-current lightning arrestor, AC circuit breaker between described ac bus and isolating transformer, exchanges
Fuse and A.C. contactor, described ac bus connects exchange precharging circuit.
Preferably, described microprocessor uses dsp chip.
Preferably, described control circuit is provided with secondary accessory power supply, and described secondary accessory power supply uses alternating current-direct current mixing to supply
Electrically, the direct current power source voltage scope of described secondary accessory power supply is 200-1000V, the exchange of described secondary accessory power supply
Supply voltage scope is 176-264V.
Preferably, described control circuit is also associated with mutual circuit, and described mutual circuit is provided with human-computer interaction interface, described
Human-computer interaction interface includes that display and control panel, described control panel are provided with run indicator, malfunction indicator lamp and tight
Anxious stop botton.
Preferably, described three-phase inverter bridge circuit includes the bridge arm unit that three tunnels are arranged in parallel, each described brachium pontis
Unit is by two power switch pipe compositions being arranged in series, and described power switch pipe reverse parallel connection has diode, described power
Switching tube is IGBT pipe.
Preferably, described control circuit controls device talk with higher level and is connected.
Preferably, the driving signal of described PWM drive circuit is calculated by described microprocessor, described driving signal packet
Including frequency signal and duty cycle signals, described PWM drive circuit connects described power switch pipe, controls described power switch pipe
Switch motion makes described three-phase inverting circuit be operated in inverter mode or rectification state.When described three-phase inverting circuit is operated in inverse
During change state, electric energy flows to described ac bus from described dc bus；When described three-phase inverting circuit is operated in rectification state
Time, electric energy flows to described dc bus from described ac bus.
Preferably, described control circuit is provided with different controlling parties according to the method for operation that alternating current-direct current mixing micro-capacitance sensor is different
Formula, described control mode includes V-f control mode and P-Q uneoupled control mode.When described alternating current-direct current mixing micro-capacitance sensor orphan nets fortune
During row, described microprocessor performs V-f control mode.When described alternating current-direct current mixing micro-grid connection is run, described micro-process
Device performs P-Q uneoupled control mode.When described alternating current-direct current mixing micro-capacitance sensor is switched to grid-connect mode by lonely net pattern, at lonely net
Under pattern, described microprocessor uses V-f control mode to be tracked the voltage under grid-connect mode and phase place, grid-connected rear described
Control mode is transferred to P-Q uneoupled control mode by microprocessor.Described alternating current-direct current mixing micro-capacitance sensor by grid-connect mode to lonely net mould
Formula switching includes that planned grid-connect mode turns lonely net pattern switching and unplanned property grid-connect mode turns lonely net pattern switching.Planned
When grid-connect mode turns the switching of lonely net pattern, the control mode of described microprocessor is receiving grid-connect mode and is turning the finger of lonely net pattern
Transferred to V-f control mode by P-Q uneoupled control mode after order；Described micro-place when unplanned property grid-connect mode turns lonely net pattern switching
The control mode of reason device is directly transferred to V-f control mode by P-Q uneoupled control mode.
Preferably, realize described by the described three-phase inverter bridge circuit output voltage of regulation with the phase place angle of electric current
The P-Q of V2G two-way AC-DC conversion current transformer decouples function.
Preferably, described V-f control mode is: power frequency sine wave is carried out discretization, it is thus achieved that if in a power frequency period
The sinusoidal wave data of dry discrete time point, forms sine table array sin [n] being made up of these some sinusoidal wave datas, according to just
String table array forms the square pulse of correspondence and replaces the required power frequency sine wave of V-f control as modulating wave, passes through switch lock
Rate obtains a switch corresponding to power frequency period sine table and counts nf with the relation of work frequency, with sine table array element sum
The step-length that when multiple of n and nf is to realize power frequency sine wave, sine table pointer moves chooses the rectangular pulse for modulation.
Preferably, described P-Q uneoupled control mode is: power frequency sine wave is carried out discretization, it is thus achieved that a power frequency period
The sinusoidal wave data of interior some discrete time points, forms sine table array sin [m] being made up of these some sinusoidal wave datas, depends on
Forming the square pulse of correspondence according to this sine table array replaces in P-Q uneoupled control power frequency needed for electric voltage feed forward part sinusoidal
Ripple, as modulating wave, obtains a switch corresponding to power frequency period sine table by switching frequency with the relation of work frequency and counts
Mf, the step-length that during with the multiple of sine table array element sum m and mf for realizing power frequency sine wave, sine table pointer moves is chosen
Rectangular pulse for modulation.
The beneficial effects of the utility model are:
1, this utility model uses three phase full bridge two-way PWM conversion, can realize two-way alternating current-direct current energy conversion；
2, this utility model uses one-stage transfor-mation device, and topology is simple, and reliability is high；
3, this utility model achieves the function (four-quadrant operation ability) of P-Q decoupling；
4, use isolating transformer to carry out electrical isolation between this utility model direct current network and AC network, isolate transformation
Device can also carry out the voltage matches between alternating current-direct current；
5, this utility model DC side configuring direct current chopper, DC fuse, AC configuration AC circuit breaker, exchange
Fuse, it is possible to achieve overload flow is protected；
6, this utility model dc bus and ac bus are respectively connected with precharging circuit, and electrical network Starting mode is flexible, start
Impact little；
7, this utility model is provided with human-computer interaction interface and can check the fortune of V2G two-way AC-DC conversion current transformer at any time
Row information, carries out relative parameters setting and runs operation；
8, this utility model is provided with for carrying out communication between V2G two-way AC-DC conversion current transformer and background management system
Special communication interface, management system realizes V2G hand over directly by controlling the on off operating mode at public electric wire net site (PCC switch) place
Stream mixing micro-capacitance sensor toggles at isolated power grid and being incorporated into the power networks between two kinds of mode of operations, it is achieved seamless handover function；
9, this utility model is provided with special run indicator and malfunction indicator lamp, for indicate equipment running status and
Malfunction；
10, this utility model is provided with emergency stop button for equipment emergency shutdown, is provided with operation/stopping permutator limit
Control equipment service condition, makes that equipment is more safe and stable, reliability service.
Accompanying drawing explanation
Fig. 1 is frame structure sketch of the present utility model；
Fig. 2 is circuit diagram of the present utility model；
Fig. 3 is the electrical schematic diagram that this utility model three-phase inverter bridge circuit is operated under active inversion state；
Fig. 4 is the electrical schematic diagram that this utility model three-phase inverter bridge circuit is operated under active rectification state；
Fig. 5 is this utility model four-quadrant operation boundary sketch.
Detailed description of the invention
See Fig. 1 to Fig. 2, the utility model discloses a kind of V2G two-way AC-DC conversion current transformer, including work electricity
Road, signal acquisition circuit and for controlling the control circuit of described operating circuit duty, described control circuit is adopted with signal
Collector communication connects, and under modern technologies background, can be preferably provided with microprocessor, described micro-process in described control circuit
Device connects described inverter circuit by PWM drive circuit, is achieved in control output and the described inversion electricity of described control circuit
Control between road connects.
Described operating circuit includes that the three-phase inverter bridge circuit 5 being connected with dc bus is connected with ac bus
Isolating transformer 7 and the filter circuit 6 that is arranged between described three-phase inverter bridge circuit and isolating transformer.
Described three-phase inverter bridge circuit is the core of operating circuit, and its modulation is the tune of described two-way inverter circuit than being exactly
Ratio processed, it is in inverter mode, and two-way inverter circuit is at inverter mode, and it is in rectification state, and two-way inverter circuit is just
It is in rectification state.Described three-phase inverter bridge circuit includes the bridge arm unit that three tunnels are arranged in parallel, each bridge arm unit by
IGBT switching tube and diode reverse compose in parallel.Wherein, the effect of backward diode is to prevent from being punctured by high backward voltage,
Play afterflow protective effect；IGBT switching tube turn on and off ac-dc conversion and the two-way flow achieving energy.Described three
Phase bridge inverter main circuit use air blast cooling radiating mode, it is possible to ensure good heat radiation, enable the circuitry to reliable, stable,
Work efficiently.
PWM drive circuit connects described three-phase inverter bridge circuit, and multi-channel PWM output is coupled with each IGBT switching tube
Control end.PWM drive circuit sends pwm signal, and frequency entrained by pwm signal or duty cycle information are by DSP microprocessor
Calculate, then be controlled signal amplification through PWM drive circuit, make the control signal of output can drive IGBT switching tube
Action.PWM drive circuit uses special drive circuit, IGBT switching tube can be made to be operated in optimum state, the most described driving
Circuit also has defencive function, according to the state of the IGBT switching tube that described signal acquisition circuit collects, different having detected
Send fault-signal and turn off IGBT switching tube time often.
Described filter circuit major function is that the voltage signal of high frequency is converted to the satisfactory sine wave of harmonic wave, meets
National utility power grid quality requirement.
The effect of described isolating transformer is direct-current grid to be isolated with exchanging micro-capacitance sensor, carries out between alternating current-direct current simultaneously
Voltage matches.
Be provided with between described three-phase inverter bridge circuit and dc bus direct current arrester 1, dc circuit breaker 2, direct current melt
Disconnected device, D.C. contactor 3 and DC filter 4, described dc bus is additionally provided with direct current precharging circuit and direct current leadage circuit, makes
The Starting mode of DC loop is flexible, reduces startup impact little.
Be provided with between described isolating transformer and ac bus AC circuit breaker 9, AC fuse, A.C. contactor 8 and
Alternating-current lightning arrestor 10, described ac bus is additionally provided with exchange precharging circuit, it is achieved the starting protection etc. to ac circuit.
Described signal acquisition circuit mainly includes digital signal acquiring module and collection of simulant signal module, it is possible to adopt in real time
The duty of each parts in collection current transformer.
Described control circuit is the core of automatically controlled part, is calculated for the signal sent here by signal acquisition circuit
The control signal that described PWM drive circuit works on request is ordered about in result data the output of target parameter.Described control
The set-point of result data with corresponding target parameter is compared by circuit, sends alarm signal when beyond set point
Breath；The microprocessor of described control circuit uses technical grade dsp chip (TMS320F28335PGFA), it is possible to realize V2G two-way
The support of the bottom function of AC-DC conversion current transformer and control, numerical computations, logical judgment, fault judges, circuit is protected
Protect and the function such as both-way communication.
Described bidirectional communication function is by the communication interface circuit being connected with dsp chip both-way communication and switching value interface electricity
Road realizes, it is possible to achieve the control function of V2G two-way AC-DC conversion current transformer.
Described communication interface circuit is mainly used in V2G two-way AC-DC conversion current transformer and controls equipment with higher level and lead to
News, it is possible to transmit communication control signal by external touch screen.
Described switching value interface circuit is mainly used in sending control information and receiving on-off model, thus judges current transformer
The state of inner member, and then judge the running status of micro-capacitance sensor.As examined by the on off operating mode signal at reception PCC switch
Being incorporated into the power networks or isolated power grid state of micrometer electrical network.
Described V2G two-way AC-DC conversion current transformer is provided with secondary accessory power supply, and described secondary accessory power supply uses to be handed over directly
Stream combined power supply way, can be i.e. DC source, it is also possible to be alternating current power supply, and the scope of described secondary accessory power supply is very
Width, the voltage range of DC source is at 200-1000V/dc, and the voltage range of alternating current power supply is at 176-264V/ac.
As it is shown on figure 3, described three-phase inverter bridge circuit is operated under active inversion state, dc bus laterally exchanges mother
Line release electric energy, by the control to three-phase inverter bridge circuit, it is achieved energy conversion from DC to AC, thus obtains high-quality
Three-phase alternating current (UA/UB/UC/N).When V2G two-way AC-DC conversion current transformer is operated in isolated power grid, this part
Electric energy can be supplied to the load of ac bus；When V2G two-way AC-DC conversion current transformer is operated in and is incorporated into the power networks, this part electric energy
Public electric wire net can also be flowed in addition to the load of supply ac bus.
As shown in Figure 4, described three-phase inverter bridge circuit is operated under active rectification state, and the lateral direct current of ac bus is female
Line release electric energy, by the control to three-phase inverter bridge circuit, it is achieved electric energy transformation from AC to DC, thus obtains stable
Direct current energy supply dc bus electrical equipment.
The two-way friendship of V2G is realized straight by the described three-phase inverter bridge circuit output voltage of regulation and the phase place angle of electric current
The function (four-quadrant operation ability) of the P-Q decoupling of current transformer is changed in circulation, and its four-quadrant operation boundary sketch is as shown in Figure 5.
Described V2G two-way AC-DC conversion current transformer has different according to the method for operation that alternating current-direct current mixing micro-capacitance sensor is different
Control mode:
1, during described alternating current-direct current mixing micro-capacitance sensor isolated power grid, described microprocessor performs V-f control mode, and V-f controls
Needing power frequency sine wave as modulating wave, in this utility model, the forming method of this modulating wave is: to power frequency sine wave (preferably
It is the power frequency sine wave of 1 for amplitude) carry out discretization, it is thus achieved that the sine of some in a power frequency period (n) discrete time point
Wave datum, forms sine table array sin [n] being made up of these some sinusoidal wave datas, is formed respectively according to described sine table array
Under discrete time point to replace V-f to control corresponding to the square pulse of power frequency sine wave data under this discrete time point required
Power frequency sine wave as modulating wave, obtains a power frequency period sine table by switching frequency corresponding with the relation of work frequency
Switch nf(switching frequency numerical value i.e. in units of a power frequency period of counting), with sine table array element sum n's and nf
The step-length that when multiple is to realize power frequency sine wave, sine table pointer moves chooses the rectangular pulse for modulation, thus from above-mentioned square
Battle array pulse train have chosen the some rectangular pulse (rectangular pulse subsequence) corresponding with switching signal time point, in this, as tune
Ripple processed compares with switching signal and modulates output and complies with power frequency sine wave shape (including that position is mutually identical).And in sine table array
Current array pointer sin-pointer according to certain step change, it is achieved power frequency modulating wave, corresponding with sin-pointer
Angle go update lock phase angle theta.
Analyzing as a example by A phase, the triangular carrier cycle corresponds to cycle count value Counpr, and A burst length that is conducted is corresponding
Count as nA for step-by-step counting CouncmpA, A phase is corresponding in sine table array, have CouncmpA=0.5 × Counpr(1+
Ma sin [nA]), B phase and C phase modulating wave also can move an operation from sine table array accordingly and obtain.
2, when described alternating current-direct current mixing micro-grid connection is run, microprocessor is followed the tracks of changed power rapidly, is controlled simultaneously
The change of V2G two-way AC-DC conversion current transformer dc bus, meets dc bus bearing power vacancy；During grid-connected work, V2G
Two-way AC-DC conversion current transformer can be to perform P-Q uneoupled control mode, and P-Q uneoupled control needs three-phase by coordinate transform
Change of variable under symmetrical rest frame becomes the variable under the synchronous rotating frame on the basis of electrical network fundamental voltage, conversion
Afterwards, the DC Variable under the quantitative change of first-harmonic AC sine is synchronous rotating frame.In P-Q uneoupled control, electric voltage feed forward part is also
Need power frequency sine wave as modulating wave, modulating wave during the forming method of this modulating wave controls in this patent equipment with V-f
Forming method is all mutually: carry out discrete to power frequency sine wave (for ease of computing, be preferably set to the power frequency sine wave that amplitude is 1)
Change, it is thus achieved that the sinusoidal wave data of some discrete time points in a power frequency period, formed by this some (m) sinusoidal wave data group
Sine table array sin [m] become, the square pulse forming correspondence according to this sine table array replaces in P-Q uneoupled control
Needed for electric voltage feed forward part, power frequency sine wave is as modulating wave, obtains a power frequency by the relation of switching frequency and work frequency
The switch that cycle sinusoidal table is corresponding is counted mf, by sine table array element sum m and mf(i.e. in units of a power frequency period
Switching frequency numerical value) the multiple step-length that sine table pointer moves when being to realize power frequency sine wave choose the rectangle arteries and veins for modulation
Punching；M and n is the integer more than 1.Lock phase angle theta changes along with electric network voltage phase, by phase-locked angle corresponding to sine table array
In array pointer sin-pointer current for pointer sin-pointerPQ and the angle of correspondence, it is achieved with reference to modulating wave, will
The modulating wave that P-Q decoupling current ring obtains is added on the reference modulating wave of sine table generation, can get the defeated of P-Q uneoupled control
Go out modulating wave, it is achieved the power tracking of grid-connect mode.
3, described alternating current-direct current mixing micro-capacitance sensor by lonely net pattern when grid-connect mode switches, described micro-place when lonely net pattern
Reason device use V-f control mode the voltage under grid-connect mode, phase place are tracked, grid-connected after, described microprocessor will control
Mode transfers P-Q uneoupled control mode to.Lock phase angle theta changes along with electric network voltage phase, calculates the θ finger corresponding to sine table array
Pin sin-pointerPQ, with current array pointer sin-pointer follow the trail of sin-pointerPQ, during two-way inverter circuit
Running in V-f voltage source mode, modulating wave generates the change depending on sin-pointer, when two pointers are equal, controls
PCC point high-speed switch closes, and switches to the pattern of being incorporated into the power networks, and depends on sin-pointerPQ(sin-with reference to modulating wave
Pointer and sin-pointerPQ keep equal) change, after stable operation, according to power instruction by P-Q decoupling electricity
The modulating wave that stream ring generates is superimposed upon with reference on modulating wave, it is achieved power tracking controls.
4, described alternating current-direct current mixing micro-capacitance sensor by grid-connect mode to lonely net pattern switching time be divided into two kinds of situations:
(1) planned grid-connect mode turns lonely net pattern switching: touch when V2G two-way AC-DC conversion current transformer receives HMI
When touching screen or backstage telecommand ' grid-connected turn of lonely net ', implementation plan grid-connect mode is turned lonely net pattern switching behaviour by equipment
Making, control mode will go to V-f control mode, and V2G system switches seamlessly to isolated power grid.
(2) unplanned property grid-connect mode turns lonely net pattern switching: i.e. the reasons such as the unexpected power down of PCC point or electric network fault are made
PCC point is become to lose electric network source, sin-pointer(now sin-pointer and sin-of phase-locked angle, θ correspondence switching instant
PointerPQ is the most equal) keep a switch periods, sin-pointer no longer follows the trail of sin-pointerPQ, with reference to modulating wave
Not relying on the change of sin-pointerPQ, now can control PCC point high-speed switch and disconnect, V2G system switches seamlessly to lonely net
Run.Sin-pointer is according to the pointer value of switching instant, according to certain step change, it is achieved new reference modulating wave, this
Time control mode directly transfer V-f control mode to.
Disclosed in this utility model each preferably with optional technological means, unless otherwise indicated and a preferred or optional skill
Art means are outside the restriction further of another technological means, all can form some different technical schemes in any combination.
Claims (10)
1. a V2G two-way AC-DC conversion current transformer, it is characterised in that include operating circuit, signal acquisition circuit and control electricity
Road, described operating circuit includes the isolation that the three-phase inverter bridge circuit being connected with dc bus is connected with ac bus
Transformator and the filter circuit being arranged between described three-phase inverter bridge circuit and isolating transformer, the control of described control circuit
System output connects described inverter circuit, and described signal acquisition circuit connects each parts in described operating circuit, described signal
Acquisition Circuit accesses described control circuit.
2. V2G two-way AC-DC conversion current transformer as claimed in claim 1, it is characterised in that described three-phase inverter bridge circuit
The bridge arm unit being arranged in parallel including three tunnels, each described bridge arm unit is by two power switch pipe groups being arranged in series
Become.
3. V2G two-way AC-DC conversion current transformer as claimed in claim 2, it is characterised in that described power switch pipe is provided with instead
To diode in parallel.
4. V2G two-way AC-DC conversion current transformer as claimed in claim 3, it is characterised in that described power switch pipe is IGBT
Pipe.
5. V2G two-way AC-DC conversion current transformer as claimed in claim 1, it is characterised in that be provided with micro-in described control circuit
Processor, described microprocessor uses dsp chip.
6. V2G two-way AC-DC conversion current transformer as claimed in claim 5, it is characterised in that described control circuit is provided with secondary
Accessory power supply, described secondary accessory power supply uses alternating current-direct current combined power supply way, the DC source electricity of described secondary accessory power supply
Pressure scope is 200-1000V, and the AC supply voltage scope of described secondary accessory power supply is 176-264V.
7. V2G two-way AC-DC conversion current transformer as claimed in claim 6, it is characterised in that described control circuit is also associated with
Mutual circuit, described mutual circuit is provided with human-computer interaction interface, and described human-computer interaction interface includes display and control panel, institute
State control panel and be provided with run indicator, malfunction indicator lamp and emergency stop button.
8. V2G two-way AC-DC conversion current transformer as claimed in claim 7, it is characterised in that described control circuit is controlled with higher level
Control equipment communication connects.
9. V2G two-way AC-DC conversion current transformer as claimed in claim 1, it is characterised in that described dc bus and three-phase bridge
Direct current arrester, dc circuit breaker, DC fuse, D.C. contactor and DC filtering it is sequentially provided with between formula inverter circuit
Device, described dc bus connects direct current precharging circuit and direct current leadage circuit.
10. V2G two-way AC-DC conversion current transformer as claimed in claim 1, it is characterised in that described ac bus and isolation
Being sequentially provided with alternating-current lightning arrestor, AC circuit breaker, AC fuse and A.C. contactor between transformator, described ac bus is even
It is connected to exchange precharging circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620385964.7U CN205753442U (en) | 2016-05-03 | 2016-05-03 | V2G two-way AC-DC conversion current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620385964.7U CN205753442U (en) | 2016-05-03 | 2016-05-03 | V2G two-way AC-DC conversion current transformer |
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| Publication Number | Publication Date |
|---|---|
| CN205753442U true CN205753442U (en) | 2016-11-30 |
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ID=57371850
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579542A (en) * | 2017-09-26 | 2018-01-12 | 华为数字技术（苏州）有限公司 | A kind of method, apparatus and system for suppressing inverter output end overvoltage |
| CN108377094A (en) * | 2018-04-09 | 2018-08-07 | 西安工业大学 | A kind of dead zone adjustment control method being suitable for double active bridge soft starts |
| CN108574400A (en) * | 2018-04-18 | 2018-09-25 | 国网山西省电力公司电力科学研究院 | A kind of a wide range of adjustable experimental power supply of alternating current-direct current mixing and its control method |
| CN110149063A (en) * | 2019-04-26 | 2019-08-20 | 科华恒盛股份有限公司 | Gird-connected inverter current controlled circuit setting device and method |
-
2016
- 2016-05-03 CN CN201620385964.7U patent/CN205753442U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107579542A (en) * | 2017-09-26 | 2018-01-12 | 华为数字技术（苏州）有限公司 | A kind of method, apparatus and system for suppressing inverter output end overvoltage |
| CN108377094A (en) * | 2018-04-09 | 2018-08-07 | 西安工业大学 | A kind of dead zone adjustment control method being suitable for double active bridge soft starts |
| CN108377094B (en) * | 2018-04-09 | 2020-07-28 | 西安工业大学 | Dead zone regulation control method suitable for soft start of double active bridges |
| CN108574400A (en) * | 2018-04-18 | 2018-09-25 | 国网山西省电力公司电力科学研究院 | A kind of a wide range of adjustable experimental power supply of alternating current-direct current mixing and its control method |
| CN110149063A (en) * | 2019-04-26 | 2019-08-20 | 科华恒盛股份有限公司 | Gird-connected inverter current controlled circuit setting device and method |
| CN110149063B (en) * | 2019-04-26 | 2021-01-01 | 科华恒盛股份有限公司 | Current control loop setting device and method for grid-connected inverter |
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Effective date of registration: 20220803 Address after: Room 16, building 2, East Ring Road, Yanqing Park, Zhongguancun, Yanqing District, Beijing 102107 Patentee after: Beijing Badaling electric power energy Co.,Ltd. Address before: Room 231, Huaxia Science and Technology Building, Building 8, Zhongguancun Software Park, Shangdi, Haidian District, Beijing, 100193 Patentee before: BEIJING BEIBIAN MICRO GRID TECHNOLOGY CO.,LTD. |