CN209104805U - High voltage protective module - Google Patents
High voltage protective module Download PDFInfo
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- CN209104805U CN209104805U CN201822121478.6U CN201822121478U CN209104805U CN 209104805 U CN209104805 U CN 209104805U CN 201822121478 U CN201822121478 U CN 201822121478U CN 209104805 U CN209104805 U CN 209104805U
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Abstract
High voltage protective module belongs to high voltage protective technical field more particularly to a kind of high voltage protective module.The utility model provides a kind of safe and reliable high voltage protective module.The utility model includes incoming line cabinet, metering cabinet, PT cabinet, house transformer and outgoing line cabinet, the input of the output end and metering cabinet of incoming line cabinet terminates a bus, the input terminal of the output termination PT cabinet of metering cabinet, the output of PT cabinet terminates secondary bus, secondary bus is connected with the input terminal of the input terminal of house transformer, outgoing line cabinet respectively, the input terminal of the output termination high-voltage rectifying transformer unit of outgoing line cabinet.
Description
Technical field
The utility model belongs to high voltage protective technical field more particularly to a kind of high voltage protective module.
Background technique
With the high speed development of new-energy automobile, people pay close attention to the charging technique of new-energy automobile further, therefore have
Necessity researches and develops a kind of safe and reliable charging equipment, and safe and reliable charging equipment then needs a kind of safe and reliable high pressure
Protective module.
Summary of the invention
The utility model provides a kind of hardware foundation of safe and reliable high voltage protective module aiming at the above problem.
To achieve the above object, the utility model adopts the following technical solution, and the utility model includes incoming line cabinet, metering
The input of cabinet, PT cabinet, house transformer and outgoing line cabinet, the output end and metering cabinet of incoming line cabinet terminates a bus, metering cabinet
The input terminal of output termination PT cabinet, the output of PT cabinet terminate secondary bus, secondary bus respectively with the input terminal of house transformer,
The input terminal of outgoing line cabinet is connected, the input terminal of the output termination high-voltage rectifying transformer unit of outgoing line cabinet.
As a preferred embodiment, the utility model further includes the electric energy output end and secondary bus of micro-capacitance sensor power supply system
It is connected.
As another preferred embodiment, the rectifier transformer pair side of high-voltage rectifying transformer unit described in the utility model is adopted
With star, triangle output-parallel structure.
As another preferred embodiment, the turn ratio of rectifier transformer first winding and secondary winding described in the utility model
It is 1: 1: 3, wherein secondary winding star structure is 1, delta connection structure 3.
As another preferred embodiment, the iron core of rectifier transformer described in the utility model uses silicon steel sheet 30Q130, adopts
With 45 ° of full bias seams without latitude glass tape binding structure.
As another preferred embodiment, the utility model micro-capacitance sensor power supply system includes master switch, step-up transformer, first
Switch, photovoltaic DC-to-AC converter, photovoltaic module, second switch, blower inverter, wind-driven generator, third switch, energy storage inverter,
Energy-storage battery, the 4th switch and Active Power Filter-APF, master switch one terminate secondary bus, the master switch other end and boosting transformation
Device output end is connected, and step-up transformer input terminal switchs one end, the with first switch one end, second switch one end, third respectively
Four switch one end are connected, and first switch one end other end is connected with the output end of photovoltaic DC-to-AC converter, the input terminal of photovoltaic DC-to-AC converter
Connect the output end of photovoltaic module；
Second switch one end other end is connected with the output end of blower inverter, the input terminal of blower inverter give a dinner for a visitor from afar power hair
The output end of motor；
Third switchs one end other end and is connected with the output end of energy storage inverter, the input termination energy storage electricity of energy storage inverter
Pond；
One end is another is terminated with active power filter for 4th switch.
As another preferred embodiment, high-voltage rectifying transformer unit described in the utility model includes high-pressure side winding, low
Press side star parallel winding and low-pressure side triangle parallel winding.
As another preferred embodiment, high-voltage rectifying transformer unit described in the utility model further includes detection low-pressure side electricity
The voltage sensor of pressure, the signal output port of voltage sensor are connected with the detection signal input port of controller, controller
Control signal output mouth be connected with the control signal input mouth of tap changer for adjusting high-pressure side umber of turn.
Secondly, the utility model high-pressure side winding includes U phase winding, V phase winding and W phase winding, tap changer group includes U
The first tap changer of phase, the second tap changer of U phase, the first tap changer of V phase, the second tap changer of V phase, the first pressure regulation of W phase are opened
It closes, the second tap changer of W phase,
U phase winding centre cap is U phase input terminal and adjusts respectively with the first terminals of the first tap changer of W phase, W phase second
First terminals that compress switch are connected；
V phase winding centre cap is V phase input terminal and adjusts respectively with the first terminals of the first tap changer of U phase, U phase second
First terminals that compress switch are connected；
W phase winding centre cap is W phase input terminal and adjusts respectively with the first terminals of the first tap changer of V phase, V phase second
First terminals that compress switch are connected；
The second wiring of the first tap changer of U phase terminates U phase winding one end, another the second tap changer of termination U phase of U phase winding
Second terminals；
The second wiring of the first tap changer of V phase terminates V phase winding one end, another the second tap changer of termination V phase of V phase winding
Second terminals；
The second wiring of the first tap changer of W phase terminates W phase winding one end, another the second tap changer of termination W phase of W phase winding
Second terminals.
In addition, low-pressure side star parallel winding described in the utility model includes 2a winding, 2b winding and 2c winding, low-pressure side
Triangle parallel winding includes 3a winding, 3b winding and 3c winding, and 2a winding one end, 2b winding one end, 2c winding one end are connected,
The 2a winding other end, the 2b winding other end, the 2c winding other end are electric energy output end；
3a winding one end is electric energy output end and be connected with 3c winding one end, the 3c winding other end for electric energy output end and with
3b winding one end is connected, and the 3b winding other end is electric energy output end and is connected with the 3a winding other end.
The utility model beneficial effect.
The safety and reliability of high voltage protective can be improved by the mutual cooperation of each section in the utility model.
The utility model provides a kind of hardware foundation of high voltage protective module.
Detailed description of the invention
The utility model is described further with reference to the accompanying drawings and detailed description.Scope of protection of the utility model
It is not only limited to the statement of the following contents.
Fig. 1 is the system block diagram of the utility model centralization high-voltage rectifying electric current distribution charging heap.
Fig. 2 is the high voltage protective system block diagram of the utility model.
Fig. 3 is the rectifier transformer block diagram of the utility model.
Fig. 4 is block diagram of high-voltage rectifying system of the utility model.
Fig. 5 is that the commutation spike of the utility model absorbs molten Zapping circuit figure fastly.
Fig. 6 is the PLC CPU control unit figure of the utility model.
Fig. 7 is the touch screen, ethernet module unit figure of the utility model.
Fig. 8 is the overvoltage of direct current absorption of the utility model, DC voltage sampling unit figure.
Fig. 9 is the switching overvoltage absorptive unit figure of the utility model.
Figure 10 is the PLC unit figure of the utility model.
Figure 11 is the bridge arm temperature alarm of the utility model, and bridge arm overheats trip unit figure.
Figure 12 is the fast fusing alarm of the utility model, trip unit figure.
Figure 13 is the instrument separator system unit figure of the utility model.
Figure 14 is the high voltage rectifier stack control system power supply unit figure of the utility model.
Figure 15 is the charging pile Control system architecture unit figure of the utility model.
Figure 16 is the charging pile control system principle elements figure of the utility model.
Figure 17 is the intelligent charging spot semibridge system binary channels crisscross parallel charging chopper circuit unit figure of the utility model.
Figure 18 is the intelligent charging spot dynamic allocation system regulating loop circuit unit figure of the utility model.
Figure 19 is high-voltage rectifying transformer (diode) system unit figure of the utility model.
Figure 20 is high-voltage rectifying transformer (thyristor) system unit figure of the utility model.
Figure 21 is the 12 pulse wave rectifier system unit figures of the utility model.
Figure 22 is the micro-capacitance sensor power supply system block diagram of the utility model.
Figure 23 is the micro-capacitance sensor controller of the utility model.
Figure 24 is the utility model tap changer structural schematic diagram.
Specific embodiment
As shown, the utility model can be applied to centralized high-voltage rectifying electric current distribution charging heap, the high repoussage of centralization
Galvanic electricity stream distribution charging heap includes high voltage protective unit (i.e. the utility model high voltage protective module), high-voltage rectifying transformer list
Member, high-voltage rectifying unit and charging pile group current distribution unit, the output port and high-voltage rectifying transformer of high voltage protective unit
The input port of unit is connected, and the output port of high-voltage rectifying transformer unit is connected with the input port of high-voltage rectifying unit,
The output port of high-voltage rectifying unit is connected with the input port of charging pile group current distribution unit.
The utility model centralization high-voltage rectifying electric current distribution charging heap is cooperated by each unit, and charging heap can be improved
Safety and reliability, convenient for the distribution of charging current.
The output port of the high-voltage rectifying transformer unit exports 12 pulse wave 840V/1500A pulse voltages.
The middle straightening stream of the output port output 750V/1500A of the high-voltage rectifying unit.
The charging pile group current distribution unit includes multiple charging piles, and each charging pile is in parallel, each charging pile electric energy input
End is connected with the output port of high-voltage rectifying unit.
The output port of the high-voltage rectifying unit is connected by closing busbar with charging pile electrical energy inputs.
The high voltage protective unit includes incoming line cabinet, metering cabinet, PT cabinet, house transformer and outgoing line cabinet, incoming line cabinet it is defeated
The input of outlet and metering cabinet terminates a bus, the input terminal of the output termination PT cabinet of metering cabinet, the output termination two of PT cabinet
Secondary bus, secondary bus are connected with the input terminal of the input terminal of house transformer, outgoing line cabinet respectively, and the output of outgoing line cabinet terminates high
The input terminal of voltage adjustment rectifier transformer unit.House transformer can for all devices control power supply and entire charging field illumination and
Communication equipment power supply.
The utility model further includes that the electric energy output end of micro-capacitance sensor power supply system is connected with secondary bus.
In the insufficient situation of local network load, the 500KW micro-grid system that system support can be selected carries out load benefit
It fills.
The rectifier transformer pair side of the high-voltage rectifying transformer unit uses star, triangle output-parallel structure.Rectification becomes
Star and delta connection is respectively adopted in depressor secondary side winding, makes phase shifting between two groups of three-phase alternating-current supplies, size phase
Deng, so that output rectified voltage is made to pulse 12 times in each AC mains cycle, the rectification change of high-voltage rectifying transformer unit
After depressor secondary winding is respectively connected to T1 and T2 high-voltage rectifier bridge, exported after two groups of direct current outputs are in parallel.
The turn ratio of the rectifier transformer first winding and secondary winding is 1: 1: 3, wherein secondary winding star structure
It is 1, delta connection structure 3.
The iron core of the rectifier transformer uses silicon steel sheet 30Q130, is bound using 45 ° of full bias seams without latitude glass tape
Structure.Structure the utility model modulation flux density < 1.58T, it can be ensured that when voltage ripple of power network+5%, iron core not overexcitation；It adjusts
Still output rated voltage when range being pressed to consider voltage ripple of power network -5%；Whole change flux density < 1.65T.
Micro-capacitance sensor power supply system includes master switch, step-up transformer, first switch, photovoltaic DC-to-AC converter, photovoltaic module, second
Switch, blower inverter, wind-driven generator, third switch, energy storage inverter, energy-storage battery, the 4th switch and active electric power filter
Wave device, master switch one terminate secondary bus, and the master switch other end is connected with step-up transformer output end, step-up transformer input terminal
One end, the 4th switch one end are switched with first switch one end, second switch one end, third respectively to be connected, first switch one end is another
One end is connected with the output end of photovoltaic DC-to-AC converter, the output end of the input termination photovoltaic module of photovoltaic DC-to-AC converter；
Second switch one end other end is connected with the output end of blower inverter, the input terminal of blower inverter give a dinner for a visitor from afar power hair
The output end of motor；
Third switchs one end other end and is connected with the output end of energy storage inverter, the input termination energy storage electricity of energy storage inverter
Pond；
One end is another is terminated with active power filter for 4th switch.
The high-voltage rectifying transformer unit includes high-pressure side winding, low-pressure side star parallel winding and low-pressure side triangle
Parallel winding.
The high-voltage rectifying transformer unit further includes the voltage sensor for detecting low-pressure side voltage, the letter of voltage sensor
Number output port is connected with the detection signal input port of controller, the control signal output mouth of controller and adjusts high-pressure side
The control signal input mouth of the tap changer of umber of turn is connected.
The utility model enters tap changer after using 7 segmentation tap changers, the AC energy of power grid to pass through high-voltage switch gear,
Tap changer can be operated by tap switch with carrying.The gear of tap changer shows that signal is transmitted to commutation system control cabinet,
And having load boosting, having load to be depressured and have load emergency stop operation signal for control cabinet can be received.The primary side of transformer is converted
Tap adjusts the operation of voltage, to guarantee that secondary side exports one compared with stable voltage.When system detection is primary to direct current
When voltage is lower than voltage rating 10%, control system adjusts tap changer, by reducing the number of turns of first winding, reaches raising two
The purpose of secondary winding output voltage.
When the controller detects low-pressure side voltage lower than voltage rating 10%, controller controls tap changer and reduces height
Press the number of turns of side winding.
High-pressure side winding includes U phase winding, V phase winding and W phase winding, tap changer group include the first tap changer of U phase,
The second tap changer of U phase, the first tap changer of V phase, the second tap changer of V phase, the first tap changer of W phase, the second pressure regulation of W phase are opened
It closes,
U phase winding centre cap is U phase input terminal and adjusts respectively with the first terminals of the first tap changer of W phase, W phase second
First terminals that compress switch are connected；
V phase winding centre cap is V phase input terminal and adjusts respectively with the first terminals of the first tap changer of U phase, U phase second
First terminals that compress switch are connected；
W phase winding centre cap is W phase input terminal and adjusts respectively with the first terminals of the first tap changer of V phase, V phase second
First terminals that compress switch are connected；
The second wiring of the first tap changer of U phase terminates U phase winding one end, another the second tap changer of termination U phase of U phase winding
Second terminals；
The second wiring of the first tap changer of V phase terminates V phase winding one end, another the second tap changer of termination V phase of V phase winding
Second terminals；
The second wiring of the first tap changer of W phase terminates W phase winding one end, another the second tap changer of termination W phase of W phase winding
Second terminals.
The low-pressure side star parallel winding includes 2a winding, 2b winding and 2c winding, low-pressure side triangle parallel winding
Including 3a winding, 3b winding and 3c winding, 2a winding one end, 2b winding one end, 2c winding one end are connected, the 2a winding other end,
The 2b winding other end, the 2c winding other end are electric energy output end；
3a winding one end is electric energy output end and be connected with 3c winding one end, the 3c winding other end for electric energy output end and with
3b winding one end is connected, and the 3b winding other end is electric energy output end and is connected with the 3a winding other end.
The high-voltage rectifying unit uses T1 high-voltage rectifier bridge (1) and T2 high-voltage rectifier bridge (2), T1 high-voltage rectifier bridge (1)
It is connected with the input terminal of T2 high-voltage rectifier bridge (2) with the output end of high-voltage rectifying transformer unit；
Or use pulse wave rectifier circuit, the output end phase of the input terminal and high-voltage rectifying transformer unit of pulse wave rectifier circuit
Even.
The pulse wave rectifier circuit includes diode V7~V12, diode V1~V6, diode V7 anode respectively with 2a around
Group electric energy output end, diode V8 cathode be connected, diode V7 cathode respectively with diode V9 cathode, diode V12 cathode, arteries and veins
Wave rectification circuit output cathode, diode V1 cathode, diode V3 cathode, diode V5 cathode are connected；
Diode V8 anode is positive with diode V10 anode, diode V11 anode, diode V2 anode, diode V4 respectively
Pole, diode V6 anode, pulse wave rectifier circuit output cathode are connected；
Diode V10 cathode is connected with 2b winding electric energy output end, diode V9 anode respectively, diode V11 cathode point
It is not connected with 2c winding electric energy output end, diode V12 anode；
Diode V1 anode is connected with 3a winding electric energy output end, diode V2 cathode respectively, diode V3 anode difference
Be connected with 3b winding electric energy output end, diode V4 cathode, diode V5 anode respectively with 3c winding electric energy output end, diode
V6 cathode is connected.
Figure 21 pulse wave rectifier circuit, two 30 ° of three-phase thyristor bridge rectification circuit phase shift connections in parallel form pulse wave rectifier
Circuit makes between two groups of three-phase alternating-current supplies 30 ° of phase shifting, and output rectified voltage is made to pulse 12 times in a power cycle.
T1 and T2 is two groups of rectifier bridges in parallel.
The T1 high-voltage rectifier bridge (1) and T2 high-voltage rectifier bridge (2), T1 high-voltage rectifier bridge (1) includes L, K, J, I, H, G
Arm, T2 high-voltage rectifier bridge (2) include F, E, D, C, B, A arm；L, K arm one terminates 2a winding electric energy output end, and another termination of L arm is defeated
Outlet cathode, another termination output head anode of K arm；
J, I arm one terminates 2b winding electric energy output end, and another termination negative pole of output end of J arm, another termination output end of I arm is just
Pole；
H, G arm one terminates 2c winding electric energy output end, and another termination negative pole of output end of H arm, another termination output end of G arm is just
Pole；
F, E arm one terminates 3a winding electric energy output end, and another termination negative pole of output end of F arm, another termination output end of E arm is just
Pole；
D, C arm one terminates 3b winding electric energy output end, and another termination negative pole of output end of D arm, another termination output end of C arm is just
Pole；
B, A arm one terminates 3c winding electric energy output end, and another termination negative pole of output end of B arm, another termination output end of A arm is just
Pole.
The L arm is composed in series by diode V12-1~2 and fuse FU12-1~2；
K arm is composed in series by diode V11-1~2 and fuse FU11-1~2；
J arm is composed in series by diode V10-1~2 and fuse FU10-1~2；
I arm is composed in series by diode V9-1~2 and fuse FU19-1~2；
H arm is composed in series by diode V8-1~2 and fuse FU8-1~2；
G arm is composed in series by diode V7-1~2 and fuse FU7-1~2；
F arm is composed in series by diode V6-1~2 and fuse FU6-1~2；
E arm is composed in series by diode V5-1~2 and fuse FU5-1~2；
D arm is composed in series by diode V4-1~2 and fuse FU4-1~2；
C arm is composed in series by diode V3-1~2 and fuse FU13-1~2；
B arm is composed in series by diode V2-1~2 and fuse FU2-1~2；
A arm is composed in series by diode V11-1~2 and fuse FU1-1~2.
The high-voltage rectifying unit further include commutation spike absorb Zapping circuit, commutation spike absorb Zapping circuit with
The arm of high-voltage rectifier bridge is connected.
It includes resistance R11 that the commutation spike that connect with K arm, which absorbs Zapping circuit, the one end resistance R11 respectively with K arm, two
Pole pipe V11-3 anode, diode V11-2 anode, diode V11-1 anode are connected, and the resistance R11 other end passes sequentially through capacitor
C11, fuse FU21 connect the end L+, and the signal output end of fuse FU21 connects the detection signal input part of PLC CPU control unit
Mouthful；
Diode V11-3 cathode connects the end L+ by fuse FU11-3, and diode V11-2 cathode passes through fuse FU11-2
It connects the end L+, diode V11-31 cathode and the end L+ is connect by fuse FU11-1；
The detection with the one end resistance R81-3, fast fusing alarm trip unit respectively of fuse FU11-3 signal output end
Signal input port is connected, and resistance R81-3 mono- terminates the detection signal input port of fast fusing alarm trip unit；
The detection with the one end resistance R81-2, fast fusing alarm trip unit respectively of fuse FU11-2 signal output end
Signal input port is connected, and resistance R81-2 mono- terminates the detection signal input port of fast fusing alarm trip unit；
The detection with the one end resistance R81-1, fast fusing alarm trip unit respectively of fuse FU11-1 signal output end
Signal input port is connected, and resistance R81-1 mono- terminates the detection signal input port of fast fusing alarm trip unit.
It includes resistance R1 that the commutation spike that connect with A arm, which absorbs Zapping circuit, the one end resistance R1 respectively with A arm, two poles
Pipe V1-3 anode, diode V1-2 anode, diode V1-1 anode are connected, and the resistance R1 other end passes sequentially through capacitor C1, fusing
Device FU21 connects the end L+, and the signal output end of fuse FU21 connects the detection signal input port of PLC CPU control unit；
Diode V1-3 cathode connects the end L+ by fuse FU1-3, and diode V1-2 cathode meets L+ by fuse FU1-2
End, diode V1-31 cathode connect the end L+ by fuse FU1-1；
Detection of the fuse FU1-3 signal output end respectively with the one end resistance R71-3, fast fusing alarm trip unit is believed
Number input port is connected, and resistance R71-3 mono- terminates the detection signal input port of fast fusing alarm trip unit；
Detection of the fuse FU1-2 signal output end respectively with the one end resistance R71-2, fast fusing alarm trip unit is believed
Number input port is connected, and resistance R71-2 mono- terminates the detection signal input port of fast fusing alarm trip unit；
Detection of the fuse FU1-1 signal output end respectively with the one end resistance R71-1, fast fusing alarm trip unit is believed
Number input port is connected, and resistance R71-1 mono- terminates the detection signal input port of fast fusing alarm trip unit.
The PLC CPU control unit includes CPU226 A1, and the signal that the end .0 of A1 and 1.4 terminate fuse FU21 is defeated
Outlet.
The high-voltage rectifying unit further includes touch screen ethernet module unit.
The high-voltage rectifying unit further includes switching overvoltage absorptive unit, and switching overvoltage absorptive unit includes pressure-sensitive electricity
RV1~6 are hindered, varistor RV1 connects 2a winding electric energy output end by fuse FU41, and varistor RV2 passes through fuse
FU42 connects 2b winding electric energy output end, and varistor RV3 connects 2c winding electric energy output end by fuse FU43, and fuse 41~
43 signal output end connects the detection signal input port of fast fusing alarm trip unit, bridge arm temperature alarm bridge arm mistake respectively
The detection signal input port of thermal tripping unit, the detection signal input port of PLC CPU control unit are connected；
Varistor RV4 connects 3a winding electric energy output end by fuse FU44, and varistor RV5 passes through fuse FU45
3b winding electric energy output end is connect, varistor RV6 connects 3c winding electric energy output end by fuse FU46, fuse 44~46
Signal output end connects the detection signal input port of fast fusing alarm trip unit respectively, bridge arm temperature alarm bridge arm overheat is jumped
The detection signal input port of lock unit, the detection signal input port of PLC CPU control unit are connected.
The high-voltage rectifying unit further includes overvoltage of direct current absorptive unit, and overvoltage of direct current absorptive unit includes in parallel connects
Resistance R31, the R32 and DC voltage sampling module connect, resistance R31 and R32 parallel circuit one end respectively with the end L+, fuse
The one end FU53 be connected, the fuse FU53 other end respectively with the one end varistor RV13, resistance R91 and R92 parallel circuit one end
It is connected, resistance R91 and R92 the parallel circuit other end is connected with the parallel circuit of capacitor C41~45 one end, and capacitor C41~45 is in parallel
The circuit other end is connected with the varistor RV13 other end, the one end fuse FU54 respectively, the fuse FU54 other end respectively with
Resistance R31 is connected with the R32 parallel circuit other end, the end L-；The signal output port of fuse FU53 and FU54 are melted with fast respectively
The detection signal input of the detection signal input port, bridge arm temperature alarm bridge arm overheat trip unit of fusing alarm trip unit
Port, the detection signal input port of PLC CPU control unit are connected；
The high-voltage rectifying unit further includes DC voltage sampling unit, and DC voltage sampling unit includes that DC voltage takes
The detection input first port of egf block, DC voltage sampling module is connected by fuse FU55, FU56 with the end L+, the end L-,
The detection input second port of DC voltage sampling module is connected with the end L2+, the end L2-, the detection letter of DC voltage sampling module
Number output port is connected with the detection signal input port of PLC unit.
The PLC unit uses EM231 A3, and A+, A- foot of A3 connects the detection signal output end of DC voltage sampling module
Mouthful.
Bridge arm temperature alarm bridge arm overheat trip unit includes QBBJ04 P2,19 feet of P2 respectively with L arm, J arm, H
Arm, F arm, D arm, B arm, the one end switch L105, the one end switch J105, the one end switch H105, the one end switch F105, switch D105 mono-
End, the one end switch B105 are connected, and the switch L105 other end, the switch J105 other end, the switch H105 other end, switch F105 are another
End, the switch D105 other end, the switch B105 other end are corresponding with 18~13 feet of P2 respectively to be connected；
1~6 foot of P2 respectively with the one end switch A105, the one end switch C105, the one end switch E105, the one end switch G105,
The one end switch I105, the one end switch K105 are corresponding connected, and the switch A105 other end, the switch C105 other end, switch E105 are another
End, the switch G105 other end, the switch I105 other end, the switch K105 other end are corresponding with A, C, E, G, I, K arm respectively to be connected, A,
C, E, G, I, K arm connect 7 feet of P2；8 feet of P2 connect the end .3 of A1.
The bridge arm temperature alarm bridge arm overheat trip unit includes QBBJ04 P3, and 11,12 feet of P3 are respectively with P2's
11,12 feet are corresponding is connected；
19 feet of P3 respectively with L arm, J arm, H arm, F arm, D arm, B arm, the one end switch L115, the one end switch J115, switch
The one end H115, the one end switch F115, the one end switch D115, the one end switch B115 are connected, and the switch L115 other end, switch J115 are another
One end, the switch H115 other end, the switch F115 other end, the switch D115 other end, the switch B115 other end respectively with P3 18
~13 feet are corresponding to be connected；
1~6 foot of P3 respectively with the one end switch A115, the one end switch C115, the one end switch E115, the one end switch G115,
The one end switch I115, the one end switch K115 are corresponding connected, and the switch A115 other end, the switch C115 other end, switch E115 are another
End, the switch G115 other end, the switch I115 other end, the switch K115 other end are corresponding with A, C, E, G, I, K arm respectively to be connected, A,
C, E, G, I, K arm connect 7 feet of P3；8 feet of P3 connect the end .2 of A1.
The fast fusing alarm trip unit includes KRBJO4 P1, and 5 feet of P1 pass through control fuse alarm tripping
Relay K14 connects instrument separator system unit, and 6 feet of P1 connect instrument separator system unit, and 3,4 feet of P1 meet PLC CPU
Control unit.
The instrument separator system unit includes that direct current part PV1, DC current part PA1, in-cabinet temperature are adopted
Collect part, DC current part E1, in-cabinet temperature part E2 and fan section, the input of PV1 terminates DC voltage sampling unit.
In Fig. 6, each foot output of PLC carries out controlling various signals, each intermediate relay by multiple intermediate relay K
The contact of device K is marked with terminal number, and each terminal is according to number connected to external hardware (such as: each button, indicator light, air draft
Fan etc.).
Autotransducer includes control winding, displacement winding (offset winding), spare winding, Figure 20.DC power supply is defeated
The magnetic density for changing autotransducer to one of winding is sent, adjusts AC energy indirectly, reaches the mesh of steady-state adjustment
's.
Have and carry the alternating voltage that tap changer is inputted in the primary-side-control of rectifier transformer, controls in a certain range defeated
D. C. value out.There is load tap changer to be used in combination with the saturable reactor being connected in rectifier output circuit.By
DC current is introduced in reactor, makes to generate a variable impedance in route.It is defeated by controlling the voltage drop at reactor both ends
Value can control in narrow range out.
The high-voltage rectifying unit further includes high voltage rectifier stack control system power supply unit, high voltage rectifier stack control system electricity
Source unit includes PLC touch screen working power part, PLC DI power unit, isolator instrument power part, probe power
Partially, alarm power unit, voltage sample isolator power unit, control power failure part, PLC touch screen working power
Partially, PLC DI power unit, isolator instrument power part, probe power part, alarm power unit, voltage sample
The input terminal of isolator power unit is connected with the end L1+, L1-.
The charging pile includes charging pile control system, charging pile control system include controller, semibridge system chopper circuit,
Sensing module, optical coupling isolation circuit, photoelectrical coupler and charging gun electronic lock, the detection signal input port of controller respectively with
The signal transmission port of input power, controller is defeated with the control signal of power output contactor respectively by optical coupling isolation circuit
Inbound port, the control signal input mouth of indicator light, the control signal input mouth of charging gun electronic lock, the user of charging gun are logical
Casually, the signal transmission port of touch screen is connected；
The detection signal input port of controller is switched with detection semibridge system chopper circuit respectively by photoelectrical coupler
The signal output port of the temperature sensor of tube temperature degree, detect charging gun temperature temperature sensor signal output port, CC1
The detection signal output port for controlling voltage detecting circuit is connected；
The control signal output mouth of controller is connected with the control signal input mouth of semibridge system chopper circuit.
It is defeated that the controller passes sequentially through SG3525 chip, Fiber isolation circuit and the control signal of semibridge system chopper circuit
Inbound port is connected.
The charging pile control system further includes semibridge system chopper circuit short-circuit alarming circuit.
The semibridge system chopper circuit short-circuit alarming circuit is using the insulating monitoring connect in semibridge system chopper circuit output end
Device.
The semibridge system chopper circuit includes IGBT S1~S4, the gate pole of IGBT S1~S4 respectively with the control of controller
Signal output port is connected, and the source electrode of S1 is connected with the drain electrode of S2, the one end inductance L2 respectively, and the drain electrode of S1 is cut with semibridge system respectively
Wave circuit electrical energy inputs anode, the one end capacitor C1, S3 drain electrode be connected, the capacitor C1 other end respectively with semibridge system chopper circuit
Electrical energy inputs cathode, the source electrode of S2, the source electrode of S4, the one end capacitor C2, semibridge system chopper circuit electric energy output end cathode are connected,
The capacitor C2 other end is connected with the inductance L2 other end, semibridge system chopper circuit electric energy output end anode, the one end inductance L1 respectively, electricity
The sense L1 other end is connected with the drain electrode of the source electrode of S3, S4 respectively.
Figure 17, the switching tube driving signal of each bridge arm is limited by constant output voltage and is exported in each multichannel copped wave module
The Double-closed-loop control circuit of electric current generates, which includes voltage PI adjuster, electric current PI adjuster, moves
Phase device and m carrier wave, which are handed over, cuts comparator, and m carrier wave hands over the m bridge arm cut in comparator and the multichannel copped wave module
It corresponds, the positive input terminal input reference voltage of voltage PI adjuster, the negative input end input of voltage PI adjuster should
The output voltage of multichannel copped wave module, the positive input terminal of the output end connection electric current PI adjuster of voltage PI adjuster,
The negative input end of electric current PI adjuster inputs the output electric current of the multichannel copped wave module, the output end of electric current PI adjuster
M carrier wave of connection hands over the positive input terminal for cutting comparator, and phase shifter exports m phase successively staggeredly 2 π/m carrier signal
The negative input end for cutting comparator is handed over to m carrier wave, each carrier wave hands over the switching tube for cutting the corresponding bridge arm of comparator output to drive letter
Number.
Uin is the DC voltage that transformer rectifying part provides, and C1 is input filter capacitor, S1, S2, L2 composition one and half
Bridge power topology, S3, S4, L2 form another half-bridge power topology, and C2 is output filter capacitor, and IL is inductive current sampling
(average value is equivalent to charging current), Uo are charging output voltage.G1-g4 corresponds to the driving signal of S1-S4, passes through g1-g4's
The constant current voltage limiting control of charge power supply is realized in pulsewidth modulation.
Figure 18, including intelligent charging spot dynamic allocation system regulating loop, charging voltage gives Uref and charging current is given
Determine a reference value of charging voltage and electric current that Iref is setting, it is charge power supply that output voltage, which samples Uo and inductive current sampling IL,
Controlled volume.The modulating wave obtained by voltage regulator and current regulator, with two staggeredly 180 ° triangular carrier carry out
Carrier wave, which is handed over, to be cut, and driving signal g1-g4, the final stability contorting for realizing charge power supply are generated.Wherein, g1/g2 and g3/g4 difference is mutual
Mend work.
The sensing module includes the voltage sensor for detecting input voltage, the voltage sensor for detecting output voltage, inspection
Survey the current sensor of input current, the current sensor of detection output electric current, the voltage sensor for detecting vehicle battery voltage.
The controller uses STM32F103 chip, the end ADC of STM32F103 chip respectively with detection input voltage
The detection signal output port of voltage sensor, the detection signal output port of the voltage sensor of detection output voltage, detection
The detection signal output of the detection signal output port, the current sensor of detection output electric current of the current sensor of input current
Port, the detection signal output port for the voltage sensor for detecting vehicle battery voltage are connected.
The charging pile control system further includes temperature-compensation circuit
The photoelectrical coupler uses HCNR201 module.
The charging pile control system further includes accessory power supply, the signal biography of accessory power supply signal transmission port and controller
Defeated port is connected, and the power output port of accessory power supply is connected by contactor KM5 with the auxiliary electric energy input port of charger,
The control signal input mouth of contactor KM5 is connected with the control signal output mouth of controller.
The accessory power supply uses digital switch power supply.
The accessory power supply passes sequentially through discharge module, air switch QF2 and AC/380V phase by residual current operated protective device
Even.
The semibridge system chopper circuit electrical energy inputs anode respectively with the one end resistance R1, contactor KM2 first is normally opened opens
Close one end be connected, the first normal open switch of contactor KM2 other end respectively with the first normal open switch of contactor KM1 one end, fuse
The one end FU1 is connected, another terminating resistor R1 other end of the first normal open switch of contactor KM1；The fuse FU1 other end respectively with change
Resistance one end device RV1, air switch QF1 first switch one end, the one end Surge Protector SPD1 are connected, and air switch QF1 first is opened
Close another termination DC/840V, Surge Protector SPD1 other end ground connection；The rheostat RV1 other end respectively with fuse FU2 mono-
End, air switch QF1 second switch one end, the one end Surge Protector SPD2 are connected, Surge Protector SPD2 other end ground connection, empty
Another termination DC/840V of air cock QF1 second switch；The fuse FU2 other end respectively with the second normal open switch of contactor KM1 one
End, the second normal open switch one end contactor KM2 are connected, and contactor KM1 the second normal open switch other end and contactor KM2 second are normal
Switch the other end, semibridge system chopper circuit electrical energy inputs cathode is connected.
The utility model further includes the contact switch KV and charging gun return that monitoring device door state is mounted on machine box door
The detection signal output port of detection contact switch Kl, KV and Kl are connected with the detection signal input port of controller.
The semibridge system chopper circuit electric energy output end anode respectively with contactor KM3 normal open switch one end, varistor
The one end RV2, insulated monitor LMD positive terminal, the first normal open switch one end contactor KM4 are connected, and contactor KM3 normal open switch is another
One end by resistance R3 respectively with semibridge system chopper circuit electric energy output end cathode, the varistor RV2 other end, insulated monitor
LMD negative pole end, the second normal open switch one end contactor KM4 are connected, the control signal input mouth of contactor KM4 and controller
The defeated place port of signal is controlled to be connected；
Contactor KM4 the first normal open switch other end is connected with voltmeter positive terminal, charging gun positive terminal respectively, contactor
KM4 the second normal open switch other end is connected with voltmeter negative pole end, charging gun negative pole end respectively, the detection signal output of voltmeter
Port is connected with the detection signal input port of controller.
The switching tube driving signal of each bridge arm of semibridge system chopper circuit limits output electric current by constant output voltage
Double-closed-loop control circuit generate, the Double-closed-loop control circuit include voltage PI adjuster, electric current PI adjuster, phase shifter with
And m carrier wave is handed over and cuts comparator, m carrier wave hands over the m bridge arm one cut in comparator and the multichannel copped wave module a pair of
It answers, the negative input end of the positive input terminal input reference voltage of voltage PI adjuster, voltage PI adjuster inputs the multichannel
The output voltage of copped wave module, the positive input terminal of the output end connection electric current PI adjuster of voltage PI adjuster, electric current PI
The negative input end of adjuster inputs the output electric current of the multichannel copped wave module, and the output end of electric current PI adjuster connects m
A carrier wave hands over the positive input terminal for cutting comparator, and phase shifter exports m phase and successively interlocks 2 π/m carrier signal to m
Carrier wave hands over the negative input end for cutting comparator, and each carrier wave, which is handed over, cuts the switching tube driving signal that comparator exports corresponding bridge arm.
The control signal output mouth of the controller passes sequentially through low pressure and adjusts part, constant current clipped portion, electric current tune
Section device is handed over first carrier cut comparator positive input terminal respectively, the second carrier wave hands over a section comparator positive input terminal to be connected, first carrier
Hand over a section comparator negative input end, the second carrier wave that a section comparator negative input end is handed over to be connected respectively with the output end of phase-shifting carrier wave part,
The input terminal of phase-shifting carrier wave part is connected with the output end of carrier wave generating portion, the control signal input of carrier wave generating portion with
The control signal output mouth of controller is connected；
First carrier hands over a section comparator output terminal to be connected respectively with the gate pole of S1, the first input terminal for negating circuit, and first
Negate the gate pole of the output termination S2 of circuit；Second carrier wave hands over a section comparator output terminal to negate electricity with the gate pole of S3, second respectively
The input terminal on road is connected, and second negates the gate pole of the output termination S4 of circuit；
The inspection with the sensor of detection semibridge system chopper circuit output voltage respectively of the detection signal input port of controller
Survey signal output port, the signal output port for the sensor that detection semibridge system chopper circuit exports is connected.
The utility model further includes unit microcomputer protection monitor part, transformer cooling system, rectification cooling system, detection
The direct current transducer, direct current banister S1~S4, the signal transmission port of PLC that rectifier transformer exports Current Voltage are micro- with group respectively
Machine protects the signal transmission port, the signal transmission port of transformer cooling system, the signal for rectifying cooling system of monitor portion
Transmission port, the signal transmission port of direct current transducer, the signal transmission port of direct current banister are connected.
The utility model further includes PWM drive part, the control signal input mouth of PWM drive part and the control of PLC
Signal output port is connected, the control signal output mouth of the PWM drive part control signal input with the control section A respectively
Mouth, the control signal input mouth of the control section B are connected.
The control section A and the control section B include the displacement that reactor is arrived to reactor control winding and one
Winding, DC power supply are delivered to one of winding, change the magnetic density of autotransducer, adjust AC energy indirectly；A
TA1 is controlled, B controls TA2；TA1, TA2 respectively correspond secondary winding star structure part and delta connection structure division.
The control section A is connect with transformer TA1 output end reactor, the control section B and transformer TA2 output end electricity
Anti- device connection.
The utility model further includes A phase shift diode and B phase shift diode, A phase shift diode and TA1 reactor be displaced around
The connection of group port, B phase shift diode and transformer TA2 reactor displacement winding port connect.
The utility model further includes control conversion section, and control conversion section detects direct current major loop by direct current transducer
Operating voltage it is whether normal, such as off-rating ± 10%, control system will issue instructions to tap changer and be adjusted.
The rectification cooling system includes the temperature sensor and rectification part cooling fan for detecting rectification part, and temperature passes
The detection signal output port of sensor is connected with the detection signal input port of PLC, the control signal output mouth of PLC and rectification
The control signal input mouth of component cooling fan is connected.
The transformer cooling system includes the temperature sensor and fan for cooling transformer for detecting transformer operating temperature,
The detection signal output port of temperature sensor is connected with the detection signal input port of PLC, the control signal output mouth of PLC
It is connected with the control signal input mouth of fan for cooling transformer.
Described group of microcomputer protection monitor part uses single-chip microcontroller, and the detection signal input port of single-chip microcontroller is pressed off with height respectively
Close the detection signal output port of cabinet detection part, detection signal output port, the transformer of on-load voltage regulating switch detection part
Detection signal output port, the detection signal output port of commutation system temperature detection part, the direct current of temperature detection part return
The detection signal output port of the detection part on road.
The utility model further includes exchange intelligent collector, and the signal input port for exchanging intelligent collector is connected with TA1,
The detection signal output port of TA2 is connected with the signal input port of exchange conversion part；
Exchange intelligent collector signal output port respectively with the signal input port of the first synchronization detecting section, second
The signal input port of synchronization detecting section is connected, and the signal output port of the first synchronous test section and the signal of the first MCU are defeated
Inbound port is connected, and the signal output port of the second synchronous test section is connected with the signal input port of the 2nd MCU, the first MCU's
Control signal output mouth is connected with the control signal input mouth of the first pulse amplifier part, the control of the first pulse amplifier part
Signal output port processed is connected with the gate pole of the first thyristor of control tap changer；
The control signal output mouth of 2nd MCU is connected with the control signal input mouth of the second pulse amplifier part, the
The control signal output mouth of two pulse amplifier parts is connected with the second gate circuit transistor gate of control tap changer；First thyristor
Cathode connects the end L+ by switch QS2, and the first thyristor anode is connected with the second thyristor cathode, and the second thyristor anode is by opening
It closes QS3 and connects the end L-.
The utility model further includes first passage monitoring, second monitor portion, the first LCD display keyboard portion, second
LCD shows keyboard portion, the first communication interface part, the second communication interface part, the first A/D variable part, the 2nd A/D variable
Partially, first switch amount I/O part, the part second switch amount I/O, the first MCU respectively with first passage monitor portion, first
LCD shows that keyboard portion, the first communication interface part, the first A/D variable part, the part first switch amount I/O are connected；
2nd MCU shows keyboard portion, the second communication interface part, the with second channel monitor portion, the 2nd LCD respectively
Two A/D variable parts, the part second switch amount I/O are connected；
First communication interface part, the second communication interface part are connected with machine set PLC monitor portion respectively；First A/D becomes
Amount part, the 2nd A/D variable part respectively with the turn on thyristors rate control unit on exchange conversion part, the first thyristor cathode
Part is connected；
TA1, TA2 respectively correspond secondary winding star structure part and delta connection structure division.
First pulse amplifier part and the second pulse amplifier part use signal amplifier.
The exchange conversion part uses A/D variable module.Exchange conversion part acquires AC signal and direct current major loop
Signal.
The synchronism of synchronization detecting section detection commutation system.
In Figure 20, TV is voltage transformer, detects busbar voltage.Channel monitoring include external switch amount, analog quantity detection,
Forceful electric power source voltage detecting, pulse detection monitoring, two-node cluster hot backup channel monitoring.
The system that controller is made of digital processing unit, synchronization signal enter processor (MCU) by transformation, pulse letter
It number is exported by processor, the phase sequence of trigger pulse can be set in LCD touch display screen.
Synchronous detection: detecting power grid PT three-phase synchronous signal, in number control device starting work, is guaranteeing to synchronize
Under the frequency signal distortion factor, just start digital triggering pulse, otherwise issues lock-out signal.
Pulse amplifier: the pulse wave signal of output high-power in bandwidth range carries out power setting, gain adjustment, determines
When test.
Channel monitoring: monitoring pulse transmittance process and pulse amplifier tubulose state.To controller Working Status Monitoring, issue
Channels operation normal state signal.When the work of service aisle digital control implement is abnormal or has internal fault, channel failure letter is issued
Number, start alternate channel.
Triggering power supply: to pulse amplifier output be monitored, when voltage fluctuation or be lower than an amplitude when, issue lose triggering electricity
The alarm of source status fault, pulse blocking are simultaneously stopped status signal working properly.
Exchange conversion: being the voltage for mutual inductor being collected power grid, current signal, by being transformed into A/D variable module institute
After the signal format needed, it is input to A/D transformer module.
When transformer secondary voltage is lower than rated value, there is load to adjust to upper end, reduce the first winding of transformer, thus
Achieve the purpose that improve voltage.When transformer secondary voltage is higher than rated value, there is load to adjust to lower end, increase the one of transformer
Secondary winding, to achieve the purpose that reduce voltage.
The micro-capacitance sensor power supply system includes micro-capacitance sensor controller, micro-capacitance sensor controller signals transmission port respectively with photovoltaic
Signal transmission port, the signal transmission port of Active Power Filter-APF, the signal transmission port of energy storage inverter, wind of inverter
Signal transmission port, the signal transmission port of microgrid energy power system of machine inverter are connected,
The microgrid energy power system uses computer.
The micro-capacitance sensor controller includes MCU, DSP, and the signal transmission port of MCU is connected with the signal transmission port of DSP,
The control signal output mouth of MCU and firstIPM moduleInput port be connected, firstIPM moduleOutput port and DC/DC
The control port of module is connected, and the input port of DC/DC module is connected with photovoltaic module, the output port of DC/DC module and the
The input port of one AC/DC module is connected；
The control signal input parallel port and second of first AC/DC moduleIPM moduleOutput port be connected, secondIPM ModuleInput port connect dsp control signal output port, dsp control signal output port connects the control of two-way AC/DC module
Signal input port is connected, and two-way AC/DC module is contacted with battery group, the output port of the first AC/DC module, first respectively
Device one end is connected, the signal input port and the signal output port of photovoltaic power generation, wind-power electricity generation load condition sampling module of DSP
It is connected；
The control signal input mouth of first contactor is connected by relay with the control signal output mouth of DSP, the
The one contactor other end is connected with the input terminal of AC load, the 2nd AC/DC module respectively, the output end of the 2nd AC/DC module
Connect DC load, AC load is given a dinner for a visitor from afar power generator by second contactor, and the control signal input mouth of second contactor is logical
Cross the control signal output mouth that relay meets DSP.
Figure 23, sampling module sample photovoltaic power generation, wind-power electricity generation and loading condition, send to DSP, by presetting
Priority carry out photovoltaic and wind-powered electricity generation switching, since generated output and bearing power are larger, DSP is driven by control relay
Contactor.MCU passes through and DSP embedded scm cross complaint is defeated to photovoltaic power generation direct current by IPM module (intelligent power module)
It is controlled out.
It is understood that being merely to illustrate the utility model above with respect to the specific descriptions of the utility model and not being
It is limited to technical solution described in the utility model embodiment, those skilled in the art should understand that, it still can be with
It modifies to the utility model or equivalent replacement, to reach identical technical effect；Needs are used as long as meeting, all in this reality
Within novel protection scope.
Claims (5)
1. high voltage protective module, including incoming line cabinet, metering cabinet, PT cabinet, house transformer and outgoing line cabinet, it is characterised in that incoming line cabinet
Output end and metering cabinet input terminate a bus, metering cabinet output termination PT cabinet input terminal, the output end of PT cabinet
Secondary bus is connect, secondary bus is connected with the input terminal of the input terminal of house transformer, outgoing line cabinet respectively, the output end of outgoing line cabinet
Connect the input terminal of high-voltage rectifying transformer unit.
2. high voltage protective module according to claim 1, it is characterised in that further include the power output of micro-capacitance sensor power supply system
End is connected with secondary bus.
3. high voltage protective module according to claim 1, it is characterised in that micro-capacitance sensor power supply system includes master switch, boosting change
Depressor, first switch, photovoltaic DC-to-AC converter, photovoltaic module, second switch, blower inverter, wind-driven generator, third switch, storage
Energy inverter, energy-storage battery, the 4th switch and Active Power Filter-APF, master switch one terminate secondary bus, the master switch other end
It is connected with step-up transformer output end, step-up transformer input terminal is opened with first switch one end, second switch one end, third respectively
Pass one end, the 4th switch one end are connected, and first switch one end other end is connected with the output end of photovoltaic DC-to-AC converter, photovoltaic DC-to-AC converter
Input termination photovoltaic module output end；
Second switch one end other end is connected with the output end of blower inverter, and the input terminal of blower inverter is given a dinner for a visitor from afar power generator
Output end；
Third switchs one end other end and is connected with the output end of energy storage inverter, and the input of energy storage inverter terminates energy-storage battery；
One end is another is terminated with active power filter for 4th switch.
4. high voltage protective module according to claim 1, it is characterised in that the high-voltage rectifying transformer unit includes high pressure
Side winding, low-pressure side star parallel winding and low-pressure side triangle parallel winding.
5. high voltage protective module according to claim 1, it is characterised in that the high-voltage rectifying transformer unit further includes inspection
Survey the voltage sensor of low-pressure side voltage, the detection signal input port phase of the signal output port and controller of voltage sensor
Even, the control signal input mouth phase of the control signal output mouth of controller and the tap changer for adjusting high-pressure side umber of turn
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121478.6U CN209104805U (en) | 2018-12-18 | 2018-12-18 | High voltage protective module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822121478.6U CN209104805U (en) | 2018-12-18 | 2018-12-18 | High voltage protective module |
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| Publication Number | Publication Date |
|---|---|
| CN209104805U true CN209104805U (en) | 2019-07-12 |
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ID=67162955
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361215A (en) * | 2018-12-18 | 2019-02-19 | 辽宁恒顺新能源科技有限公司 | High voltage protective module |
| CN114172035A (en) * | 2021-12-08 | 2022-03-11 | 安徽广远智能电力装备制造有限公司 | Intelligent automatic voltage-boosting transformer without power failure of high-voltage line and control method thereof |
-
2018
- 2018-12-18 CN CN201822121478.6U patent/CN209104805U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109361215A (en) * | 2018-12-18 | 2019-02-19 | 辽宁恒顺新能源科技有限公司 | High voltage protective module |
| CN109361215B (en) * | 2018-12-18 | 2024-01-19 | 辽宁恒顺新能源科技有限公司 | High-voltage protection module |
| CN114172035A (en) * | 2021-12-08 | 2022-03-11 | 安徽广远智能电力装备制造有限公司 | Intelligent automatic voltage-boosting transformer without power failure of high-voltage line and control method thereof |
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