CN106026274A - High-power charging circuit and apparatus - Google Patents
High-power charging circuit and apparatus Download PDFInfo
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- CN106026274A CN106026274A CN201610506847.6A CN201610506847A CN106026274A CN 106026274 A CN106026274 A CN 106026274A CN 201610506847 A CN201610506847 A CN 201610506847A CN 106026274 A CN106026274 A CN 106026274A
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- 230000033228 biological regulation Effects 0.000 claims abstract description 72
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- 238000012544 monitoring process Methods 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000000994 depressogenic effect Effects 0.000 claims 1
- 230000008901 benefit Effects 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
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- 238000011900 installation process Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/0071—Regulation of charging or discharging current or voltage with a programmable schedule
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
- H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
- H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
-
- 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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/02—Arrangements for reducing harmonics or ripples
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- H02J7/0086—
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- H02J7/0091—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention relates to a high-power charging circuit and apparatus. The circuit comprises a control circuit, an inlet wire isolation circuit, a voltage regulation and charging circuit, and an output isolation circuit. The control circuit is connected with the inlet wire isolation circuit, the voltage regulation and charging circuit, and the output isolation circuit; and the inlet wire isolation circuit, the voltage regulation and charging circuit, and the output isolation circuit are connected successively in series. According to the circuit and apparatus, various constant-current, constant-voltage, and constant-power charging modes are provided; automatic adjustment can be carried out based on a practical state of to-be-charged equipment; and over-voltage over-current, over-temperature, and under-voltage protection is provided for the to-be-charged equipment. Therefore, rapid and safe charging of the to-be-charged equipment is realized.
Description
Technical field
The present invention relates to charging technique field, particularly relate to a kind of high-power charging circuit and device.
Background technology
The traditional power supply mode of domestic tramcar uses contact net to power, and contact net is responsible for from traction
The electric energy that electric substation obtains is delivered directly to the vital task that tramcar uses, the therefore quality of contact net
The operation of tramcar will be directly affected with duty.It addition, the brakes of tradition tramcar
Braking energy is consumed with form of thermal energy.
Novel modern tram, owing to have employed energy storage type innovative design, had not both had pollution from exhaust emission,
Without built on stilts by operation of power networks, the feature of this electric car maximum is to have employed super capacitor to supply as traction
Power supply, it is not necessary to set up aerial cable " Aranea ", can be laid immediately on existing road, and its
His public transport mixes row, does not waste land resource.Simultaneously can at each station setting ground charging device,
When train enters the station, the time of passenger getting on/off is utilized to be rapidly completed charging, moreover it is possible to produce when absorbing skidding
Raw energy, is converted into electric energy storage and re-uses, and organic efficiency reaches more than 85%.Novel modern rail electricity
Car has safe and efficient, energy-conserving and environment-protective, science and technology fashion, small investment, the feature of instant effect.Therefore, need
Want a kind of ground safe, quick, economic, powerful charging device.
Summary of the invention
The technical problem to be solved is for above-mentioned the deficiencies in the prior art, it is provided that a kind of big merit
Rate charging circuit and device, use existing direct current urban rail Traction networks to power, by DC chopped-wave loop for treating
Charger carries out constant current, constant voltage, invariable power charging.
The technical scheme is that a kind of high-power charging circuit, including
Control circuit, inlet wire isolation circuit, pressure regulation charging circuit and output isolation circuit, described control circuit is divided
Not being connected with described inlet wire isolation circuit, pressure regulation charging circuit and output isolation circuit, described inlet wire is isolated
Circuit, pressure regulation charging circuit and output isolation circuit are in sequential series.
Described control circuit is used for monitoring described inlet wire isolation circuit, pressure regulation charging circuit and output isolation electricity
The running status on road is also uploaded to backstage electric power monitoring system；Described inlet wire isolation circuit is used for receiving outside
The DC voltage of electrical network input, and output voltage is to described pressure regulation charging circuit, at described pressure regulation charged electrical
Electrical isolation is formed between road and external electrical network；Described pressure regulation charging circuit is for the DC voltage by input
Carry out voltage conversion and export to described output isolation circuit；Described output isolation circuit is for by described tune
The charging voltage output of pressure charging circuit output is touched net to charging, charges for charging equipment.
The invention has the beneficial effects as follows: a kind of high power charging device of the present invention, have constant current, constant voltage,
The multiple charge mode of invariable power, it is possible to automatically adjust according to the virtual condition of charging equipment, and be
Charging equipment provides overvoltage, crosses stream, crosses gentle under-voltage protection, thus realizes the quick of charging equipment
Safe charging.
On the basis of technique scheme, the present invention can also do and improve as follows:
Further: described control circuit includes logic control and protection circuit, described logic control and protection
Circuit is connected with described inlet wire isolation circuit, pressure regulation charging circuit and output isolation circuit respectively, and in institute
Enter described in automatically cutting off when stating inlet wire isolation circuit, pressure regulation charging circuit and output isolation circuit generation exception
Line isolation circuit, circuit between pressure regulation charging circuit and output isolation circuit, pass abnormal signal simultaneously
Deliver to background server.
Above-mentioned further scheme provides the benefit that: on the one hand can charged by described control circuit
Journey realizes described inlet wire isolation circuit, pressure regulation charging circuit and output isolation circuit are controlled, separately
On the one hand described inlet wire isolation circuit, pressure regulation charging circuit and the reality of output isolation circuit can be detected in real time
Time state, and the automatic shutdown circuit when occurring abnormal, it is ensured that charging safety, abnormal signal is passed simultaneously
Deliver to background server, conveniently discharge fault in time.
Further: described inlet wire isolation circuit include the first lightning-preventing protector, the second lightning-preventing protector,
First voltage sensor, the second voltage sensor, the first current sensor, the first electric isolating switch,
First cross flow fuse, precharge loop, the first D.C. contactor, the 5th filter reactor, at least one
Individual first resistance, described first lightning-preventing protector is connected between external electrical network positive pole and ground, and described
Two lightning-preventing protectors are connected between external electrical network negative pole and ground, and described first voltage sensor is connected on
Between the both positive and negative polarity of external electrical network, the most in sequential series between external electrical network positive pole and negative pole have described first electricity
Move disconnecting switch, the first mistake flow fuse, drip a D.C. contactor, the 5th filter reactor, the first electricity
Flow sensor and the second voltage sensor, described first resistor coupled in parallel is at described second voltage sensor two
End, described precharge loop is connected in parallel on the two ends of described first D.C. contactor.
Above-mentioned further scheme provides the benefit that: can realize described tune by described inlet wire isolation circuit
Electrical equipment isolation between pressure charging circuit and external electrical network.Described filter reactor be installed on copped wave element it
Before, for reducing the harmonic component of voltage and current in straight-flow system, effectively suppression fault current rises,
The peak value of limiting short-circuit current, filtering noxious higher hamonic wave feedback electrical network.
Further: described precharge loop included that second crossed flow fuse, the second D.C. contactor and the
Three resistance, the described second flow fuse, the second D.C. contactor and the 3rd resistance excessively is in sequential series, and three
The two ends of described first D.C. contactor it are connected in parallel on after person's series connection.
Further: in described pressure regulation charging circuit, to include the pressure regulation charging identical with described first resistance quantity
Unit, each described pressure regulation charhing unit include the first filter reactor, the second filter reactor, the 3rd
Cross flow fuse, the 4th cross flow fuse and DC DC circuit.
Described DC DC circuit be connected in parallel on the two ends of described first resistance one to one, described DC DC electricity
Between two outfans on road in sequential series have described first filter reactor, the 3rd cross flow fuse, the
Four cross flow fuse and the second filter reactors, and the described 3rd crosses flow fuse and the 4th mistake flow fuse
Common port be connected with an input of described output isolation circuit as an outfan.
Above-mentioned further scheme provides the benefit that: by described DC DC circuit, with small area analysis modularity
Product constitutes heavy DC output, it is achieved the multiple redundancy of hardware and software, vehicle-mounted for tramcar
The charging of accumulation power supply controls.
Further: described DC DC circuit include IGBT module and the first electric capacity, described first electric capacity is also
Being associated in the described first resistance two ends of correspondence, described IGBT module parallel is at described first electric capacity two ends.
Above-mentioned further scheme provides the benefit that: described DC DC circuit use fixed frequency pulse-width controlled mode,
Controlling dutycycle size, linear regulation output voltage, it is achieved self-protection function, fault is quick after occurring
Send block PWM and control output order, overvoltage, cross stream, cross gentle under-voltage time be all provided that effectively
Protection.
Further: described IGBT module includes an IGBT, the 2nd IGBT, the 3rd IGBT and the 4th
The emitter stage of IGBT, a described IGBT and the colelctor electrode of the 3rd IGBT connect, described 2nd IGBT
Emitter stage and the colelctor electrode of the 4th IGBT connect, and the colelctor electrode of an IGBT and the 3rd IGBT
The emitter stage of emitter stage and the colelctor electrode of the 2nd IGBT and the 4th IGBT is all connected in parallel on described first electric capacity two
End, and one end of the common port of a described IGBT and the 3rd IGBT and described first filter reactor is even
Connecing, the described common port of the 2nd IGBT and the 4th IGBT is connected with one end of described second filter reactor.
Further: described output isolation cabinet includes the diode identical with described first resistance quantity and institute
State the second identical current sensor of the first resistance quantity, the 4th current sensor, tertiary voltage sensor,
3rd electric capacity, overvoltage crowbar, discharge loop, the 3rd lightning-preventing protector, the 4th anti-lightning strike protection
Device and the second electric isolating switch.
Described 3rd lightning-preventing protector is connected between external electrical network positive pole and ground, described 4th anti-lightning strike
Protector is connected between external electrical network negative pole and ground, and is also sequentially connected in series between the both positive and negative polarity of external electrical network
There are described second electric isolating switch and overvoltage crowbar, described tertiary voltage sensor and discharge loop
All it is connected in parallel on described overvoltage crowbar two ends, described 4th current sensor and described 3rd electric capacity string
It is connected in parallel on described overvoltage crowbar two ends, described second current sensor and institute after connection, and the two series connection
State Diode series at the outfan of corresponding described pressure regulation charging circuit and described 4th current sensor
And between the common port of described 3rd electric capacity.
Above-mentioned further scheme provides the benefit that: described diode VD1 and VD2 makes output and IGBT
Module is isolated, the beneficially isolation between input and output, it is ensured that the operation safety of IGBT module；Described
The magnitude of voltage of voltage sensor V3 detection energy storage device；Described control circuit is according to the magnitude of voltage detected
Mate corresponding output current value, charging equipment is carried out constant-current charge；When charging equipment being detected
Magnitude of voltage when reaching load voltage value, charging equipment is carried out invariable power charging.
Further: described overvoltage crowbar includes voltage limiter and the 4th resistance, described voltage limiter and the 4th
Resistant series is between described second electric isolating switch and the negative pole of external electrical network.
Above-mentioned further scheme provides the benefit that: charging equipment is carried out double by described overvoltage crowbar
Weight overvoltage protection, increases the safety of charging further.
Present invention also offers a kind of high power charging device, high-power including main cabinet and described one
Charging device, switch board that described main cabinet includes being sequentially arranged, feed isolating cabinet, pressure regulation charging cabinet and
Output isolation cabinet, described control circuit, inlet wire isolation circuit, pressure regulation charging circuit and output isolation circuit
It is correspondingly arranged at respectively in described switch board, feed isolating cabinet, pressure regulation charging cabinet and output isolation cabinet.
Further: described main cabinet also includes mounting seat and top cover, described switch board, feed isolating cabinet,
Pressure regulation charging cabinet and output isolation cabinet are sequentially arranged respectively in described mounting seat, and described top cover is arranged on
Described switch board, feed isolating cabinet, pressure regulation charging cabinet and the top of output isolation cabinet, and top cover upper surface
It is evenly arranged with multiple suspension ring.
Above-mentioned further scheme provides the benefit that: can guarantee that described control by described mounting seat and top cover
Cabinet processed, feed isolating cabinet, pressure regulation charging cabinet and output isolation cabinet globality in movement and installation process,
By arranging suspension ring at described top cover upper surface, the beneficially transhipment of equipment and lifting, compare bottom lifting
Mode, more convenient operation, safety is higher.
Accompanying drawing explanation
Fig. 1 is a kind of high power charging device block schematic illustration of the present invention；
Fig. 2 is a kind of high power charging device circuit diagram of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1, control circuit, 2, inlet wire isolation circuit, 3, pressure regulation charging circuit, 4, output isolation circuit.
Detailed description of the invention
Being described principle and the feature of the present invention below in conjunction with accompanying drawing, example is served only for explaining this
Invention, is not intended to limit the scope of the present invention.
As it is shown in figure 1, a kind of high power charging device structural representation, including control circuit 1, inlet wire
Isolation circuit 2, pressure regulation charging circuit 3 and output isolation circuit 4, described control circuit 1 respectively with institute
Stating inlet wire isolation circuit 2, pressure regulation charging circuit 3 and output isolation circuit 4 to connect, described inlet wire is isolated
Circuit 2, pressure regulation charging circuit 3 and output isolation circuit 4 are in sequential series.
In the present embodiment, described control circuit 1 is used for monitoring described inlet wire isolation circuit 2, pressure regulation charging
Circuit 3 and the running status of output isolation circuit 4 are also uploaded to backstage electric power monitoring system；Described inlet wire
Isolation circuit 2 is for receiving the DC voltage of external electrical network input, and output voltage charges to described pressure regulation
Circuit 3, forms electrical isolation between described pressure regulation charging circuit 3 and external electrical network；Described pressure regulation is filled
Electricity circuit 3 for carrying out voltage conversion and exporting to described output isolation circuit by the DC voltage of input
4；Described output isolation circuit 4 exports extremely for the charging voltage exported by described pressure regulation charging circuit 3
Charging is touched net, and charges for charging equipment.
In the present embodiment, described control circuit 1 includes logic control and protection circuit, described logic control
And protection circuit respectively with described inlet wire isolation circuit 2, pressure regulation charging circuit 3 and output isolation circuit 4
Connect, and occur different at described inlet wire isolation circuit 2, pressure regulation charging circuit 3 and output isolation circuit 4
Described inlet wire isolation circuit 2 is automatically cut off, between pressure regulation charging circuit 3 and output isolation circuit 4 time often
Circuit, abnormal signal is sent to background server simultaneously.
Can realize described inlet wire is isolated circuit in charging process by described control circuit 1 one aspect
2, pressure regulation charging circuit 3 and output isolation circuit 4 are controlled, and on the other hand can detect institute in real time
State inlet wire isolation circuit 2, pressure regulation charging circuit 3 and the real-time status of output isolation circuit 4, and sending out
Automatic shutdown circuit during raw exception, it is ensured that charging safety, is sent to background server by abnormal signal simultaneously,
Conveniently discharge fault in time.
As in figure 2 it is shown, in the present embodiment, described inlet wire isolation circuit 2 includes the first lightning-preventing protector
FA1, the second lightning-preventing protector FA2, the first voltage sensor V1, the second voltage sensor V2,
One current sensor A1, the first electric isolating switch QS1, first cross flow fuse F01, be pre-charged back
Road, the first D.C. contactor KM1, the 5th filter reactor L5, the first resistance R1 and the first resistance R2,
Described first lightning-preventing protector FA1 is connected between external electrical network positive pole and ground, described second anti-lightning strike
Protector FA2 is connected between external electrical network negative pole and ground, and described first voltage sensor V1 is connected on
Between the both positive and negative polarity of external electrical network, the most in sequential series between external electrical network positive pole and negative pole have described first electricity
Dynamic disconnecting switch QS1, the first mistake flow fuse F01, the first D.C. contactor KM1, the 5th filter reactance
Device L5, the first current sensor A1 and the second voltage sensor V2, described first resistance R1 and first
Resistance R2 is all connected in parallel on described second voltage sensor V2 two ends, and described precharge loop is connected in parallel on described
The two ends of the first D.C. contactor KM1.
Can be realized between described pressure regulation charging circuit 3 and external electrical network by described inlet wire isolation circuit 2
Electrical equipment isolation.Before described filter reactor is installed on copped wave element, it is used for reducing in straight-flow system electricity
Pressure and the harmonic component of electric current, effectively suppression fault current rises, and the peak value of limiting short-circuit current filters
Harmful higher hamonic wave feedback electrical network.
Preferably, described precharge loop included second fuse F02, the 3rd resistance R3 and second
D.C. contactor KM2, described second crosses flow fuse F02 the second D.C. contactor KM2 and the 3rd resistance
R3 connects, and is connected in parallel on the two ends of described first D.C. contactor KM1 after three's series connection.
In the present embodiment, described pressure regulation charging circuit 3 includes the pressure regulation identical with described first resistance quantity
Charhing unit, each described pressure regulation charhing unit include the first filter reactor, the second filter reactor,
3rd cross flow fuse, the 4th cross flow fuse and DC DC circuit.
As shown in Figure 2, we definition with described described DC in parallel for first resistance R1 DC circuit be
Oneth DC DC circuit, the described DC DC circuit in parallel with described first resistance R2 is the 2nd DC DC
Circuit.Then, it can be seen that between two outfans of a described DC DC circuit sequentially
It is in series with described first filter reactor L1, the 3rd flow fuse F03 excessively, the 4th flow fuse F04 excessively
With the second filter reactor L2, and described 3rd cross flow fuse F03 with the 4th mistake flow fuse F04
Common port be connected with an input of described output isolation circuit 4 as an outfan；Described
In sequential series between two outfans of two DC DC circuit have described first filter reactor L3, the 3rd mistake
Flow fuse F05, the 4th flow fuse F06 and the second filter reactor L4 excessively, and described 3rd mistake stream
Fuse F05 and the 4th cross the common port of flow fuse F06 as another outfan and described output every
Another input from circuit 4 connects.
By a described DC DC circuit and the 2nd DC DC circuit, use heterogeneous Buck chopper circuit
Crisscross parallel designs, and is constituted heavy DC output with small area analysis modular product, it is achieved hardware and software
Multiple redundancy, for the charge and discharge control of charging equipment.It Fig. 2 is biphase Buck chopper circuit
Crisscross parallel.
Preferably, described DC DC circuit include IGBT module and the first electric capacity C1, described first electric capacity
C1 is connected in parallel on the described first resistance R1 two ends of correspondence, and described IGBT module parallel is at described first electric capacity
C1 two ends.
Specifically, a described DC DC circuit includes the first IGBT module and the first electric capacity C1, described
First electric capacity C1 is connected in parallel on described first resistance R1 two ends, and described first IGBT module parallel is described
First electric capacity C1 two ends；Described 2nd DC DC circuit also includes the second IGBT module and the first electric capacity C2,
Described first electric capacity C2 is connected in parallel on described first resistance R2 two ends, and described second IGBT module parallel exists
Described first electric capacity C2 two ends.
Preferably, a described DC DC circuit and the 2nd DC DC circuit use fixed frequency pulse-width controlled PWM
Mode, controls dutycycle size, linear regulation output voltage, it is achieved self-protection function, and fault occurs
The most quickly send block PWM control output order, overvoltage, cross stream, cross gentle under-voltage time all can carry
For effectively protection.
Specifically, described first IGBT module include an IGBT VT1, the 2nd IGBT VT2, the 3rd
IGBT VT3 and the 4th IGBT VT4, the emitter stage of a described IGBT VT1 and the 3rd IGBT VT3
Colelctor electrode connect, the colelctor electrode connection of the emitter stage of described 2nd IGBT VT2 and the 4th IGBT VT4,
And the oneth IGBT VT1 colelctor electrode and the emitter stage of the 3rd IGBT VT3 and the collection of the 2nd IGBT VT2
The emitter stage of electrode and the 4th IGBT VT4 is all connected in parallel on described first electric capacity C1 two ends, and described first
IGBT VT1 and the common port of the 3rd IGBT VT3 and the 2nd IGBT VT2 and the public affairs of the 4th IGBT VT4
It is total to end one end respectively with described first filter reactor L1 and the second filter reactor L2 to be connected.
In like manner, described second IGBT module is similar, the most no longer with the circuit of described first IGBT module
Repeat.
In the present embodiment, described output isolation cabinet 4 includes diode VD1 and VD2, the second current sense
Device A2, the second current sensor A3, the 4th current sensor A4, tertiary voltage sensor V3, the 3rd
Electric capacity C3, overvoltage crowbar, discharge loop, the 3rd lightning-preventing protector FA3, the 4th anti-lightning strike guarantor
Protect device FA4 and the second electric isolating switch QS2.
Wherein, described 3rd lightning-preventing protector FA3 is connected between external electrical network positive pole and ground, described
4th lightning-preventing protector FA4 is connected between external electrical network negative pole and ground, and the both positive and negative polarity of external electrical network
Between be also sequentially connected in series described second electric isolating switch QS2 and overvoltage crowbar, described 3rd electricity
Pressure sensor V3 and discharge loop are all connected in parallel on described overvoltage crowbar two ends, and described 4th electric current passes
Sensor A4 connects with described 3rd electric capacity C3, and is connected in parallel on described overvoltage crowbar two after the two series connection
End, described second current sensor A2 and described diode VD1 is connected on described pressure regulation charging circuit 3
An outfan and described 4th current sensor A4 and the common port of described 3rd electric capacity C3 between,
Described second current sensor A3 is connected on the another of described pressure regulation charging circuit 3 with described diode VD2
Between one outfan and described 4th current sensor A4 and the common port of described 3rd electric capacity C3.
Described diode VD1 and VD2 makes output isolate with IGBT module, beneficially between input and output
Isolation, it is ensured that the operation safety of IGBT module；Described voltage sensor V3 detection energy storage device
Magnitude of voltage；Described control circuit 1 mates corresponding output current value according to the magnitude of voltage detected, treats
Charger carries out constant-current charge；When magnitude of voltage charging equipment being detected reaches load voltage value,
Charging equipment is carried out invariable power charging.
Preferably, described overvoltage crowbar includes voltage limiter CP and the 4th resistance R4, described voltage limiter
CP and the 4th resistance R4 is connected between described second electric isolating switch QS2 and the negative pole of external electrical network.
Described overvoltage crowbar carries out dual overvoltage protection to charging equipment, increases charging further
Safety.In the present embodiment, described overvoltage crowbar is divided into two-stage, and the first order is the total of 910V
Overvoltage protection, the second level is the list set overvoltage protection of independent 915V.
The high-power charging circuit of one of the present invention, has constant current, constant voltage, the multiple charge mode of invariable power,
Can automatically adjust according to the virtual condition of charging equipment, and for charging equipment provide overvoltage,
Cross stream, cross gentle under-voltage protection, thus realize the fast and safely charging of charging equipment.
Present invention also offers a kind of high power charging device, high-power including main cabinet and described one
Charging device, switch board that described main cabinet includes being sequentially arranged, feed isolating cabinet, pressure regulation charging cabinet and
Output isolation cabinet, described control circuit 1, inlet wire isolation circuit 2, pressure regulation charging circuit 3 and output every
Described switch board, feed isolating cabinet, pressure regulation charging cabinet and output isolation it is correspondingly arranged at respectively from circuit 4
In cabinet.
Preferably, described main cabinet also includes mounting seat and top cover, described switch board, feed isolating cabinet,
Pressure regulation charging cabinet and output isolation cabinet are sequentially arranged respectively in described mounting seat, and described top cover is arranged on
Described switch board, feed isolating cabinet, pressure regulation charging cabinet and the top of output isolation cabinet, and top cover upper surface
It is evenly arranged with multiple suspension ring.
Described switch board, feed isolating cabinet, pressure regulation charging cabinet is can guarantee that by described mounting seat and top cover
With output isolation cabinet in mobile and in installation process globality, hang by arranging at described top cover upper surface
The transhipment of ring, beneficially equipment and lifting, compare bottom lifting method, and more convenient operation, safety is more
High.
Preferably, described switch board, feed isolating cabinet, pressure regulation charging cabinet and output isolation cabinet are the most detachable
Being arranged in described mounting seat of formula, dismounts very convenient.
Preferably, described switch board, feed isolating cabinet, pressure regulation charging cabinet and output isolation cabinet before and after two
Side is equipped with cabinet door, and all around all directions are the most symmetrical, has the symmetrical aesthetic feeling of industrial products.
In the present embodiment, whole charging device corner uses designed arc-shaped appearance, makes whole device embody industry
On the premise of product speciality, highlight modern mellow and full aesthetic feeling, more amiable in device perception, more have a solid sense,
Texture is preferable.
In the present embodiment, whole charging device product uses outdoor design housing, and monolithic case considers waterproof
Dust-proof, take into account the heat radiation needs of internal component simultaneously, each natural heat dissipation hole and forced heat radiation hole are existed
Separating in top cover, making the natural heat dissipation passage of device separate with forced heat radiation passage, in order to avoid causing inside
The disorder of recycle heat passage, affects the radiating effect of device.
Preferably, charging device air inlet is arranged on housing bottom, and air outlet is arranged on case top, institute
Some inlet and outlets are provided with the measure preventing rainwater from pouring in down a chimney, it is ensured that at the waterproof effect of rainy day.Enter
The drainage screen filtering dust it is configured with, outside the dust of air inlet is isolated in housing inside air port, it is ensured that
The safe operation of device, increases the service life.
In the present embodiment, the housing of charging device is assembled after using quality steel plate processing, surface of steel plate
After shaping, entirety is zinc-plated, improves the corrosion resistance of device, sprays special open air at Several Thiourea Derivatives on Zinc Plate Surface
Molding powder, makes antirust, the anticorrosion of device, ageing-resistant performance bring up to a new height, it is ensured that dress
The normal service life put can reach 30 years.
The high-power charging circuit of one of the present invention and device, can be applicable to the quick of energy storage type tramcar
Safe charging, it is also possible to for the fast and safely charging of the powerful device of other field, be widely used,
Charge quick, safe efficient, be especially suitable for promoting the use of on a large scale.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in this
Within bright protection domain.
Claims (10)
1. a high-power charging circuit, it is characterised in that: include that control circuit (1), inlet wire are isolated
Circuit (2), pressure regulation charging circuit (3) and output isolation circuit (4), described control circuit (1)
Respectively with described inlet wire isolation circuit (2), pressure regulation charging circuit (3) and output isolation circuit (4)
Connect, described inlet wire isolation circuit (2), pressure regulation charging circuit (3) and output isolation circuit (4)
In sequential series；
Described control circuit (1) is used for monitoring described inlet wire isolation circuit (2), pressure regulation charging circuit (3)
With the running status of output isolation circuit (4) be uploaded to backstage electric power monitoring system；
Described inlet wire isolation circuit (2) is for receiving the DC voltage of external electrical network input, and exports electricity
It is depressed into described pressure regulation charging circuit (3), shape between described pressure regulation charging circuit (3) and external electrical network
Become electrical isolation；
Described pressure regulation charging circuit (3) for carrying out voltage conversion and exporting extremely by the DC voltage of input
Described output isolation circuit (4)；
Described output isolation circuit (4) is for the charging voltage described pressure regulation charging circuit (3) exported
Export and touch net to charging, charge for charging equipment.
A kind of high-power charging circuit, it is characterised in that: described control
Circuit (1) includes logic control and protection circuit, and described logic control and protection circuit are respectively with described
Inlet wire isolation circuit (2), pressure regulation charging circuit (3) and output isolation circuit (4) connect, and
Described inlet wire isolation circuit (2), pressure regulation charging circuit (3) and output isolation circuit (4) occur different
Described inlet wire isolation circuit (2), pressure regulation charging circuit (3) and output isolation circuit is automatically cut off time often
(4) circuit between, is sent to background server by abnormal signal simultaneously.
A kind of high-power charging circuit, it is characterised in that: described inlet wire
Isolation circuit (2) includes the first lightning-preventing protector, the second lightning-preventing protector, the first voltage sensor
Device, the second voltage sensor, the first current sensor, the first electric isolating switch, the first stream fusing excessively
Device, precharge loop, the first D.C. contactor, the 5th filter reactor, at least one first resistance,
Described first lightning-preventing protector is connected between external electrical network positive pole and ground, described second anti-lightning strike protection
Device is connected between external electrical network negative pole and ground, and described first voltage sensor is just being connected on external electrical network
Between negative pole, between external electrical network positive pole and negative pole the most in sequential series have described first electric isolating switch,
First crosses flow fuse, D.C. contactor, the 5th filter reactor, the first current sensor and the second electricity
Pressure sensor, described first resistor coupled in parallel is in described second voltage sensor two ends, described precharge loop
It is connected in parallel on the two ends of described D.C. contactor.
A kind of high-power charging circuit, it is characterised in that: described preliminary filling
Electricity loop included that second crossed flow fuse, the second D.C. contactor and the 3rd resistance, and described second crosses stream
Fuse, the second D.C. contactor and the 3rd resistance are in sequential series, and are connected in parallel on described the after three's series connection
The two ends of one D.C. contactor.
A kind of high-power charging circuit, it is characterised in that: described pressure regulation
Charging circuit (3) includes the pressure regulation charhing unit identical with described first resistance quantity, each described tune
Pressure charhing unit include the first filter reactor, the second filter reactor, the 3rd cross flow fuse, the 4th
Cross flow fuse and DC DC circuit；
Described DC DC circuit be connected in parallel on the two ends of described first resistance one to one, described DC DC electricity
Between two outfans on road in sequential series have described first filter reactor, the 3rd cross flow fuse, the
Four cross flow fuse and the second filter reactors, and the described 3rd crosses flow fuse and the 4th mistake flow fuse
Common port be connected with an input of described output isolation circuit (4) as an outfan.
A kind of high-power charging circuit, it is characterised in that: described DC DC
Circuit includes that IGBT module and the first electric capacity, described first electric capacity are connected in parallel on described first resistance of correspondence
Two ends, described IGBT module parallel is at described first electric capacity two ends.
A kind of high-power charging circuit, it is characterised in that: described IGBT
Module includes an IGBT, the 2nd IGBT, the 3rd IGBT and the 4th IGBT, a described IGBT's
The colelctor electrode of emitter stage and the 3rd IGBT connects, the emitter stage of described 2nd IGBT and the 4th IGBT's
Colelctor electrode connects, and the colelctor electrode of an IGBT and the emitter stage of the 3rd IGBT and the collection of the 2nd IGBT
The emitter stage of electrode and the 4th IGBT is all connected in parallel on described first electric capacity two ends, and a described IGBT with
The common port of the 3rd IGBT is connected with one end of described first filter reactor, described 2nd IGBT and
The common port of four IGBT is connected with one end of described second filter reactor.
A kind of high-power charging circuit, it is characterised in that: described output
Isolation cabinet (4) includes the diode identical with described first resistance quantity and described first resistance quantity
Identical the second current sensor, the 4th current sensor, tertiary voltage sensor, the 3rd electric capacity, mistake
Voltage protection circuit, discharge loop, the 3rd lightning-preventing protector, the 4th lightning-preventing protector and second are electronic
Disconnecting switch；
Described 3rd lightning-preventing protector is connected between external electrical network positive pole and ground, described 4th anti-lightning strike
Protector is connected between external electrical network negative pole and ground, and is also sequentially connected in series between the both positive and negative polarity of external electrical network
There are described second electric isolating switch and overvoltage crowbar, described tertiary voltage sensor and discharge loop
All it is connected in parallel on described overvoltage crowbar two ends, described 4th current sensor and described 3rd electric capacity string
It is connected in parallel on described overvoltage crowbar two ends, described second current sensor and institute after connection, and the two series connection
State Diode series and pass at corresponding outfan and described 4th electric current of described pressure regulation charging circuit (3)
Between the common port of sensor and described 3rd electric capacity.
A kind of high-power charging circuit, it is characterised in that: described overvoltage
Protection circuit includes that voltage limiter and the 4th resistance, described voltage limiter and the 4th resistant series are at described second electricity
Dynamic between disconnecting switch and the negative pole of external electrical network.
10. a high power charging device, it is characterised in that: include main cabinet and claim 1 to 8
A kind of high power charging device described in any one, described main cabinet includes the switch board being sequentially arranged, enters
Line isolation cabinet, pressure regulation charging cabinet and output isolation cabinet, described control circuit (1), inlet wire isolation circuit
(2), pressure regulation charging circuit (3) and output isolation circuit (4) are correspondingly arranged at described control respectively
In cabinet, feed isolating cabinet, pressure regulation charging cabinet and output isolation cabinet.
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| CN201610506847.6A CN106026274B (en) | 2016-06-30 | 2016-06-30 | A kind of high-power charging circuit and device |
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| CN201610506847.6A CN106026274B (en) | 2016-06-30 | 2016-06-30 | A kind of high-power charging circuit and device |
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| CN107482720A (en) * | 2017-08-18 | 2017-12-15 | 谢馥伊 | A kind of Portable low-pressure large current charge device |
| CN109038757A (en) * | 2018-09-05 | 2018-12-18 | 国充充电科技江苏股份有限公司 | A kind of discharge type DC grid charging pile system |
| CN109149934A (en) * | 2018-09-05 | 2019-01-04 | 国充充电科技江苏股份有限公司 | A kind of DC grid buck charging pile system |
| CN113437872A (en) * | 2021-06-26 | 2021-09-24 | 中科华士电气科技南京有限公司 | High-frequency auxiliary power supply based on multiple Buck circuits |
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| CN107482720A (en) * | 2017-08-18 | 2017-12-15 | 谢馥伊 | A kind of Portable low-pressure large current charge device |
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| CN106026274B (en) | 2019-03-05 |
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