CN110061508A - A kind of energy-saving bypass stepless voltage regulator of low energy consumption - Google Patents
A kind of energy-saving bypass stepless voltage regulator of low energy consumption Download PDFInfo
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- CN110061508A CN110061508A CN201910335796.9A CN201910335796A CN110061508A CN 110061508 A CN110061508 A CN 110061508A CN 201910335796 A CN201910335796 A CN 201910335796A CN 110061508 A CN110061508 A CN 110061508A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The invention discloses a kind of energy-saving bypass stepless voltage regulators of low energy consumption, it includes first line, the second route, tertiary circuit, the first relay, the second relay, compensator transformer and converter module, converter module includes inductance, first capacitor, the second capacitor, first switch, second switch, the 4th route, third switch, the 4th switch and four pressure regulation units, and pressure regulation unit includes the 5th route, first resistor, second resistance, diode and third capacitor.The voltage of amplitude needed for the present invention can not only quickly and infinitely be adjusted according to current voltage situation using converter module, its regulation precision is high and is not in apparent lag, voltage is set to be always held within the scope of the qualified voltage of standard, capacitive waveform can also be exported using converter module, reduce the reactive component of current in route, improve the power factor and the practical power output of device of power supply system, it is ensured that the safety in operation of electrical equipment.
Description
Technical field
The present invention relates to regulator field, in particular to a kind of energy-saving bypass stepless voltage regulator of low energy consumption.
Background technique
Rate of qualified voltage is one of important performance assessment criteria of quality of voltage, and most can intuitively embody user's quality of voltage and refer to
Mark, rate of qualified voltage to power system stability and power equipment safety operation, industrial or agricultural safety in production and people's lives electricity consumption all
Have a direct impact.In today that our countries develop by reform and opening-up, economic rapid development at full speed, living standards of the people are continuous
It improves, household electrical appliance enter the lives of the people, and originally distribution network can no longer meet power demand, in addition by daily load, season
Load variations are saved, radius of electricity supply is long, the influence of the unequal factor of power load distributing, and peak of power consumption fluctuates very with line voltage distribution when low ebb
Greatly, transformer undercapacity when peak of power consumption, brownout will cause equipment undercapacity or the abnormal or even damage that works, use
Overtension will affect the service life of electrical equipment again when electric low ebb.Therefore, it is one ten that raising rate of qualified voltage, which is power supply department,
Divide important task, not only influences the image of power supply company, while being also a livelihood issues, influence the horizontal matter of the lives of the people
Amount.
Low-voltage circuit automatic voltage regulator is that one kind is longer exclusively for line powering radius currently on the market, and line footpath is thin, route
The area loss of voltage great Tai and the low-voltage controlling device designed.It is mainly by compensator transformer, controller, A.C. contactor etc.
Composition, when line voltage distribution is too low, controller controls A.C. contactor and acts switching compensator transformer, carries out rank to line voltage distribution
Ladder type compensation boosting can not achieve pressure stabilizing after boosting.Low-voltage circuit automatic voltage regulator, which has, certain solves the problems, such as that low-voltage is made
With, but this voltage regulating mode belongs to stepped, is that output voltage is influenced that fluctuation amplitude is bigger, and pressure stabilizing is defeated by input voltage
Voltage accuracy is low out, and operating condition frequent for input voltage fluctuation, and device pressure regulation speed can be lagged now, is unable to satisfy existing
?.It will lead to when serious and over-voltage occur and can not move back shelves in time or enter overvoltage protection state, largely effect on the pressure regulation of pressure regulator
Effect.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of energy-saving bypass stepless voltage regulators of low energy consumption, to overcome existing low
The fluctuation of crimping road automatic voltage regulator, big precision are low and the shortcomings that be easy to appear lag.
To achieve the above object, the present invention provides a kind of energy-saving bypass stepless voltage regulators of low energy consumption, wherein packet
Include: first line, front end are connect with firewire；Second route, front end are connect with zero curve；Tertiary circuit, its rear end and zero curve
Connection；First relay, is serially connected on firewire；Second relay is serially connected in the front end of the first line；Compensate transformation
Device, primary coil and first relay are connected in parallel on firewire；And the secondary coil concatenation of the compensator transformer
In the rear end of the tertiary circuit；And converter module comprising: the rear end of inductance, one end and the first line connects
It connects, and the inductance other end is connect with the front end of the tertiary circuit；First capacitor, the rear end of one end and second route
Connection, and the other end of the first capacitor is connect with the front end of the tertiary circuit；Second capacitor, one end and the First Line
The front on road connects, and the other end of second capacitor is connect with the front of second route；First switch, second switch,
The first switch and the second switch are sequentially serially connected in the middle part of the first line；4th route, front end are connected to described
In first line and it is located at behind the second switch, and the rear end of the 4th route is connected to the rear portion of two route；
Third switch, the 4th switch, third switch and the 4th switch are sequentially serially connected in the middle part of the 4th route；And four
Pressure regulation unit, first pressure regulation unit and the first switch are connected in parallel in the first line, second tune
Pressure unit and the second switch are connected in parallel in the first line, and the third pressure regulation unit and the third switch
It is connected in parallel on the 4th route, the 4th pressure regulation unit is connected to the described 4th with the 4th switch in parallel
On route；Each pressure regulation unit includes the 5th route, first resistor, second resistance, diode and third capacitor, and described two
Pole pipe and the third capacitor are sequentially serially connected on the 5th route, the first resistor and the second resistance and described two
Pole pipe is connected in parallel on the 5th route.
Preferably, further include a master controller in above-mentioned technical proposal, the master controller by a voltage check device come
The input voltage and output voltage in power supply line are detected, and the master controller is for controlling first relay, described the
Two relays, the first switch, the second switch, third switch and the described 4th switch on-off.
Preferably, in above-mentioned technical proposal, first relay is normally closed relay, and second relay is normally opened
Relay.
Preferably, in above-mentioned technical proposal, the first switch, the second switch, the third switch and it is described
4th switch is AC tube switch.
Compared with prior art, the invention has the following beneficial effects:
Amplitude needed for the present invention can not only quickly and infinitely be adjusted according to current voltage situation using converter module
Voltage, regulation precision is high and is not in apparent lag, and voltage is enable to be always held at the qualified voltage range of standard
It is interior, moreover it is possible to export capacitive waveform using converter module, reduce the reactive component of current in route, improve the power of power supply system
Factor and the practical power output of device, it is ensured that the safety in operation of electrical equipment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the energy-saving bypass stepless voltage regulator of low energy consumption according to the present invention；
Fig. 2 is the structural schematic diagram of the converter module of the energy-saving bypass stepless voltage regulator of low energy consumption according to the present invention.
Main appended drawing reference explanation:
1- firewire, 2- zero curve, 3- arrester, 4- breaker, 5- current transformer, 6- first line, the second route of 7-,
8- tertiary circuit, the first relay of 9-, the second relay of 10-, 11- compensator transformer, 12- converter module, 13- inductance,
14- first capacitor, the second capacitor of 15-, 16- first switch, 17- second switch, the 4th route of 18-, 19- third switch, 20-
4th switch, 21- pressure regulation unit, 22- master controller, 23- first resistor, 24- second resistance, 25- diode, 26- third electricity
Hold, the 5th route of 27-.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
Fig. 1 to Fig. 2 shows a kind of energy-saving bypass stepless-adjustment press fitting of low energy consumption according to the preferred embodiment of the present invention
The structural schematic diagram set, the energy-saving bypass stepless voltage regulator of the low energy consumption include first line 6, the second route 7, third line
Road 8, the first relay 9, the second relay 10, compensator transformer 11 and converter module 12.With reference to Fig. 1, transmission line of electricity is
Conventional transmission line of electricity, is provided with the arrester (FV) 3 for playing lightning protection, 1 He of firewire in the input terminal of its firewire 1
The input terminal of zero curve 2 is additionally provided with the breaker (QF) 4 for hand off power supply, breaker 4 behind arrester 3
It can be moulded case circuit breaker.In addition, the input terminal and output end of firewire 1 are each provided with a current transformer (TA) 5,
To be respectively used to the electric current of detection input and output end.
It continuing to refer to figure 1, the front end of first line 6 is connect with firewire 1, and the front end of the second route 7 is connect with zero curve 2, the
The rear end of three routes 8 is connect with zero curve 2, the junction of tertiary circuit 8 and zero curve 2 be located at the second line we 7 and zero curve 2 junction
Behind.First relay 9 is serially connected on firewire 1, after the first relay 9 is located at the junction of first line 6 and firewire 1
Face.Second relay 10 is serially connected in the front end of first line 6.The primary coil of compensator transformer (TBa) 11 and the first relay 9
It is connected in parallel on firewire 1, and the secondary coil of compensator transformer 11 is serially connected in the rear end of tertiary circuit 8.Preferably, first
Relay 9 is normally closed relay, and the second relay 10 is normally opened relay, thus the electric current when not needing pressure regulation, on firewire
Directly pass through from the first relay 9, the second relay 10 disconnects transformer module 12.Converter module 12 include inductance 13,
First capacitor 14, the second capacitor 15, first switch 16, second switch 17, the 4th route 18, third switch 19, the 4th switch 20
And four pressure regulation units 21.
It continues to refer to figure 1 and Fig. 2, one end of inductance (Lc) 13 is connect with the rear end of first line 6, and inductance 13 is another
End is connect with the front end of tertiary circuit 8；First capacitor (CA) 14 one end is connect with the rear end of the second route 7, and first capacitor
14 other end is connect with the front end of tertiary circuit 8.One end of second capacitor (C) 15 is connect with the front of first line 6, connection
Place is located at behind the second relay 10, and the other end of the second capacitor 15 is connect with the front of the second route 7.Second capacitor
15 effect is EMI filter action.
Continue to refer to figure 1 and Fig. 2, first switch 16 and second switch 17 sequentially tandem connection at the middle part of first line 6,
First switch 16 is located at the second capacitor 15 with behind the junction of first line 6, and second switch 17 is located at before inductance 13.
The front end of 4th route 18 is connected in first line 6 and is located at behind second switch 17, i.e. the front end position of the 4th route 18
Between second switch 17 and inductance 13.The rear end of 4th route 18 is connected to the rear portion of the second route 7, i.e. the 4th route
Rear end is located between the second capacitor 15 and the junction and first capacitor 14 and the junction of the second route 7 of the second route 7.The
Three switches 19 and the 4th switch 20 sequentially tandem connection at the middle part of the 4th route 18.Preferably, first switch 16, second switch
17, third switch 19 and the 4th switch 20 are alternating-current switch pipe (PS).
It continues to refer to figure 1 and Fig. 2, in four pressure regulation units 21 of transformer module 12, first pressure regulation unit 21 and
One switch 16 is connected in parallel in first line 6, and second pressure regulation unit 21 and second switch 17 are connected in parallel on first
On route 6, third pressure regulation unit 21 and third switch 19 are connected in parallel on the 4th route 18, the 4th pressure regulation unit 21
Be connected in parallel on the 4th route 18 with the 4th switch 20, by control it is different switch on-off, just can adjust electric current from
Which pressure regulation unit 21 passes through.
Continue to refer to figure 1 and Fig. 2, each pressure regulation unit 21 include the 5th route 27, first resistor 23, second resistance 24,
Diode 25 and third capacitor 26, the 5th route 27 and corresponding switch in parallel are distributed, diode 25 and third capacitor 26 according to
Sequence is serially connected on the 5th route 27, and first resistor 23 and second resistance 24 and diode 25 are connected in parallel on the 5th route 27
On.First resistor 23, second resistance 24, third capacitor 26 form RC absorption circuit, protect and silicon-controlled not by surge current or change
To over-voltage breakdown, spike promptly can be guided into capacitor by diode 25, improve the effect of capacitive absorption spike.
Each resistance can be such that capacitance voltage discharges in pipe conducting, prepare to absorb energy next time.Switch opens moment electricity
Stream is walked in diode 25, is walked inside resistance.
It continues to refer to figure 1, the present invention further includes a master controller 22 further, and master controller 22 is examined by a voltage
Device is surveyed to detect the input voltage and output voltage in power supply line, power supply can be also detected additionally by current detection means
Input current and output electric current in line, to realize monitoring.And master controller 22 for control the first relay 9, second after
Electric appliance 10, first switch 16, the on-off of second switch 17, third switch 19 and the 4th switch 20.The model of master controller 22
TMS320F2812PGFACG-41APTSW
Stepless voltage regulation process of the invention are as follows:
Judge to need by detection line input voltage Ui and output voltage Uo whether to enter and adjust voltage operation mode,
Into after pressure regulation operating mode, voltage needed for being calculated according to device output voltage Uo feedback, fast driving converter module 12 is produced
Raw continuously adjustable required amplitude voltage Uo ' is added in the secondary circuit of compensator transformer 11, then can cross electromagnetism by compensator transformer 11
Sense voltage Δ U is superimposed upon in major loop, and output voltage is equal to Uo=Ui+ Δ U (continuously adjustable)；Voltage can be risen to national mark
Within the scope of quasi- qualified voltage and stablize some specified value.
With reference to Fig. 2, transformer module 12 is the circuit structure of Buck type AC/AC AC converter, wherein first switch
(PS1) 16, second switch (PS2) 17 is a pair of of alternating-current switch pipe, and it is another that third, which switchs (PS3) 19 and the 4th switch (PS4) 20,
A pair of of alternating-current switch pipe, two pairs of alternating-current switch pipe complementations are open-minded, and service time is respectively DTS, (1-D) TS, and wherein D is duty
Than TS is switch periods.Duty ratio D is constant, is input voltage angular frequency according to the π of ω=2 f, ω, and f is input voltage frequency
Rate, it is known that, output voltage Uo is sinusoidal variations, and phase is consistent with input voltage Uin, but amplitude is not more than the width of input voltage
Value Um.Different further according to the polarity of the input voltage Uin and electric current iLc of inductance 13, within an input voltage period, there are four
Kind different phase: Uin > 0, iLc > 0；Uin>0, iLc<0；Uin < 0, iLc < 0；Uin<0, iLc>0.
Uin=Um sin_t
(1) when there is Uin > 0, when iLc > 0:
Second switch (PS2) the 17, the 4th switchs (PS4) 20 and keeps Heng Tong, first switch (PS1) 16, third switch (PS3)
19 high frequency complementations are open-minded, and the stage circuit is there are two types of mode is switched, and when first switch (PS1) 16 is connected, third switchs (PS3)
19 disconnect, and input voltage gives first capacitor (Ca) 14 and load supplying by first switch (PS1) 16, inductance (Lc) 13；When
When one switch (PS1) 16 is disconnected, third switch (PS3) 19 is opened, inductive current iLc is through inductance (Lc) 13, first capacitor (Ca)
14 switch the backward dioded afterflow of (PS3) 19 with load, third, and inductance (Lc) 13 and first capacitor (Ca) 14 are jointly to negative
Carry power supply.
(2)Uin>0,iLc<0
Second switch (PS2) the 17, the 4th switchs (PS4) 20, and first switch (PS1) 16, third switch (PS3) 19, the rank
Section circuit is there are two types of mode is switched, and when first switch (PS1) 16 is connected, and third switchs (PS3) 19, input voltage passes through first
Backward dioded, the inductance (Lc) 13 of switch (PS1) 16 gives first capacitor (Ca) 14 and load supplying；As first switch (PS1)
16 disconnect, and when third switch (PS3) 19 is opened, inductive current iLc is through inductance (Lc) 13, the 19, first electricity of third switch (PS3)
Hold (Ca) 14 and oad freewheels, inductance (Lc) 13 and first capacitor (Ca) 14 power to the load jointly.
(3)Uin<0,iLc<0
First switch (PS1) 16, third switch (PS3) 19 Heng Tong, and it is high that second switch (PS2) the 17, the 4th switchs (PS4) 20
Frequency is complementary open-minded.The stage circuit is there are two types of mode is switched, when second switch (PS2) 17 is opened, the 4th switch (PS4) 20 is closed
When disconnected, input voltage gives first capacitor (Ca) 14 and load supplying by second switch (PS2) 17, inductance (Lc) 13；When second
It switchs (PS2) 17 to disconnect, when the 4th switch (PS4) 20 is opened, inductive current iLc switchs (PS4) through inductance (Lc) the 13, the 4th
20 backward dioded, first capacitor (Ca) 14 and oad freewheels, inductance (Lc) 13 and first capacitor (Ca) 14 are jointly to load
Power supply.
(4)Uin<0,iLc>0
First switch (PS1) 16, third switch (PS3) 19 Heng Tong, and it is high that second switch (PS2) the 17, the 4th switchs (PS4) 20
Frequency is complementary open-minded.The stage circuit is there are two types of mode is switched, when second switch (PS2) 17 is opened, the 4th switch (PS4) 20 is closed
When disconnected, input voltage to first capacitor (Ca) 14 and is born by backward dioded, the inductance (Lc) 13 of second switch (PS2) 17
Carry power supply；When second switch (PS2) 17 disconnects, the 4th switch (PS4) 20 be when opening, inductive current iLc through inductance (Lc) 13,
First capacitor (Ca) 14 and load, the 4th switch (PS4) 20 afterflow, inductance (Lc) 13 and first capacitor (Ca) 14 are jointly to negative
Carry power supply.
According within an input voltage period, there are four kinds of different phases: Uin > 0, iLc > 0；Uin>0, iLc<0；
Uin<0,iLc<0；Uin<0,iLc>0.Output voltage is believed it with reference output voltage after feedback sample, by master controller
It number is compared, obtains high-frequency PWM control signal, obtain control signal SN2 after 17 reverse phase of second switch (PS2)；Input voltage
After sampled, the input voltage polar signal of low frequency is generated by master controller, obtains signal after 16 reverse phase of first switch (PS1)
SN1；Second switch (PS2) 17, SN2 carry out logic or modulation with first switch (PS1) 16, SN1 respectively, generate first switch
(PS1) 16, second switch (PS2) 17, third switch (PS3) the 19, the 4th switch control signal K1, K2 of (PS4) 20, K3,
K4, by change switch service time come output voltage Uo.
2) the energy-saving bypass of low energy consumption: when device input pressure is in national standard acceptability limit or failure is protected
When function, master controller 22 judges and disconnects the second relay 10, and the second relay 10 no longer needs power-source maintenance in turn at this time
Realize the energy-saving bypass of low energy consumption.
3) increase power factor:
The energy-saving bypass stepless voltage regulator of low energy consumption can be according to route using the power electronics in converter module 12
Operating condition exports capacitive waveform, reduces the reactive component of current in route, and power factor and the device for improving power supply system are real
Border power output, the safety in operation of electrical equipment also will be enhanced.
4) it monitors on-line:
Master controller 22 can measure the operating parameter of complete equipment, count, and pass through GPRS and remote server
The data of system, which interact, realizes distribution transforming on-line monitoring function, specifically includes that
1. collection voltages, electric current realize the measurement of voltage, electric current, active power, reactive power, power factor；
2. converter module action frequency on the 12nd, total action frequency simultaneously count runing time；
5) overload and short-circuit protection:
Breaker 4 is installed in low energy consumption economized bypass stepless voltage regulator, when overload or short circuit, corresponding breaker 4
Disjunction is to reach defencive function.When short-time overload or short circuit occur in compensator transformer 11, master controller 22 can be according to setting
Protection parameters control the second relay 10 movement, switch the device into bypass condition, protect the safety of equipment.
6) lightning protection:
Zinc oxide surge arresters 3 effectively prevent damage caused by Lightning Over-voltage and switching overvoltage in distribution box.If encountered
Overvoltage, the conducting of arrester 3, which will shove, introduces earthed system.
Master controller 22 of the invention collects the output voltage (Uo) of power supply line and input voltage (Ui) is compared
Compared with when unqualified, first contactor 9 is disconnected, and the second relay 10 disconnects, and carries out pressure regulation, master control to access transformer module 12
The continuous voltage of amplitude needed for 22 driving transducer module 12 of device processed generates same-phase is added in the secondary circuit of compensator transformer 11,
Continuously adjustable voltage (Δ U) is added to power supply line by the electromagnetic induction of compensator transformer 11, i.e., output voltage is equal to Uo
=Ui+ Δ U；Because 12 output voltage of converter module continuously automatically adjusts, by being supplied after compensator transformer 12
The output voltage of electric line is stable, i.e. output voltage stabilization a certain value in national standard qualified voltage；Work as input voltage
After being restored to national standard qualification, the second relay 10 is disconnected, and the first relay 9 is connected, so that compensator transformer 11 and transformation
Device module 12 stops working, and stepless voltage regulator enters the energy-saving bypass of low energy consumption.Compared with traditional circuit pressure regulator, low energy consumption
Energy-saving bypass stepless voltage regulator solve voltage output adjustment speed slowly and output voltage fluctuation greatly, shunting device power consumption it is big
The problems such as, major loop of the voltage superposition in compensator transformer 11 of continuously adjustable required amplitude is generated by converter module 12,
Power electronics in converter module 12 can quick high-frequency operation so that output voltage is in set national qualified voltage
In some value, do not influenced by input voltage fluctuation.The energy-saving bypass stepless voltage regulator of low energy consumption utilizes converter module 12
In power electronics can according to route operating condition export capacitive waveform, reduce route in the reactive component of current, improve supply
The practical power output of the power factor and device of electric system, the safety in operation of electrical equipment also will be enhanced.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of energy-saving bypass stepless voltage regulator of low energy consumption characterized by comprising
First line, front end are connect with firewire；
Second route, front end are connect with zero curve；
Tertiary circuit, its rear end are connect with zero curve；
First relay, is serially connected on firewire；
Second relay is serially connected in the front end of the first line；
Compensator transformer, primary coil and first relay are connected in parallel on firewire；And the compensator transformer
Secondary coil is serially connected in the rear end of the tertiary circuit；And
Converter module comprising:
Inductance, one end are connect with the rear end of the first line, and the front end of the inductance other end and the tertiary circuit connects
It connects；
First capacitor, one end are connect with the rear end of second route, and the other end of the first capacitor and the third line
The front end on road connects；
Second capacitor, one end are connect with the front of the first line, and the other end of second capacitor and second line
The front on road connects；
First switch, second switch, the first switch and the second switch are sequentially serially connected in the middle part of the first line；
4th route, front end is connected in the first line and is located at behind the second switch, and the 4th route
Rear end be connected to the rear portion of two route；
Third switch, the 4th switch, third switch and the 4th switch are sequentially serially connected in the middle part of the 4th route；And
Four pressure regulation units, first pressure regulation unit and the first switch are connected in parallel in the first line, the
Two pressure regulation units and the second switch are connected in parallel in the first line, the third pressure regulation unit with it is described
It is connected to third switch in parallel on the 4th route, the 4th pressure regulation unit is connected to the 4th switch in parallel
On 4th route；Each pressure regulation unit includes the 5th route, first resistor, second resistance, diode and third electricity
Hold, the diode and the third capacitor are sequentially serially connected on the 5th route, the first resistor and second electricity
Resistance is connected on the 5th route with the diodes in parallel.
2. the energy-saving bypass stepless voltage regulator of low energy consumption according to claim 1, which is characterized in that further include a master control
Device processed, the master controller detect input voltage and output voltage in power supply line, and the master by a voltage check device
Controller is for controlling first relay, second relay, the first switch, the second switch, described the
It three switches and the described 4th switches on-off.
3. the energy-saving bypass stepless voltage regulator of low energy consumption according to claim 1, which is characterized in that first relay
Device is normally closed relay, and second relay is normally opened relay.
4. the energy-saving bypass stepless voltage regulator of low energy consumption according to claim 1, which is characterized in that described first opens
Pass, the second switch, the third switch and the 4th switch are AC tube switch.
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| CN201910335796.9A CN110061508B (en) | 2019-04-24 | 2019-04-24 | Bypass stepless voltage regulating device |
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| CN201910335796.9A CN110061508B (en) | 2019-04-24 | 2019-04-24 | Bypass stepless voltage regulating device |
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| CN110061508B (en) | 2023-10-10 |
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