CN206117261U - Self -adaptation CT induction electricity -taking's power control system - Google Patents
Self -adaptation CT induction electricity -taking's power control system Download PDFInfo
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- CN206117261U CN206117261U CN201620929231.5U CN201620929231U CN206117261U CN 206117261 U CN206117261 U CN 206117261U CN 201620929231 U CN201620929231 U CN 201620929231U CN 206117261 U CN206117261 U CN 206117261U
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Abstract
The utility model discloses a self -adaptation CT induction electricity -taking's power control system, power control system include CT induction electricity -taking module, full wave rectification module, self -interacting power protection module and energy collection control module, the CT induction electricity -taking pair of module is predetermine the scope electric current and is got electricity acquisition alternating voltage, full wave rectification pair of module alternating voltage carries out exporting behind the full wave rectification DC voltage, self -interacting power protection module charges to built -in energy pond according to the DC voltage, when detection energy cell voltage is greater than protection voltage, release to the CT induction electricity -taking module, when detecting energy cell voltage less than or equal to protection voltage, the energy output cell voltage, control module is collected according to the big minor tune -up of energy cell voltage to little power load's power supply state and super capacitor's charged state to the energy, self -interacting power protection module has solved the problem that current electrical power generating system can not carry out automatically regulated and protection to induction electricity -taking, ability autmoatic storage electric energy, switching energy.
Description
Technical field
This utility model is related to electromagnetic induction technical field, more particularly to a kind of adaptive CT senses the power supply of power taking
Control system.
Background technology
The distribution network automated scope being related to of China is wide, but because early stage lacks overall planning, grid structure is complicated weak,
Probability of malfunction is high, especially overhead transmission line.According to statistics 90% power failure and fault disturbance occur in power distribution network；Wherein search simultaneously
Line fault point is excluded, becomes the key factor for improving power supply quality.Using distribution automation terminal（FTU（Line feed terminals set
It is standby）And DTU（Switching station terminal equipment））The big segmentation of backbone, the fault section and isolation of big branch can be realized.But the party
Case investment is larger, and China's distribution region is broad, is unfavorable for distribution automation all standing.National Energy Board can electric power【2015】
No. 290 files《Distribution network construction transforms action plan》It is distinctly claimed, from 2015-2020 power distribution automations coverage rate from current
20% reach more than 90%.Support the major product that vast scale is covered to be fault detector class product, calculate from the upper data of planning
The demand for learning the five-year fault detector class product is no less than 3,000,000 sets.Therefore, it is economical, to install portable two distant basic
Type distribution is monitored on-line becomes the major product for realizing that vast scale distribution automation is covered with fault location terminal.
Existing built on stilts two distant basic model distribution terminals mainly have following several, there is more defect, particularly power supply
System power taking aspect is more projected, and has a strong impact on products application.One is solar energy power taking；Which is by overcast and rainy, night and sky
Makings amount affects, and power-supply system power taking easily occurs not enough, it is impossible to support terminal long-play.Two is CT sensing power takings；Adopt
With electronic power switch, current minimum can power taking electric current be 10A, more small current power taking cannot be realized, electric current power taking dead band and heat
Design needs to break through, it is impossible to which sensing power taking is automatically adjusted and protected.Three is that built-in disposable Ni-MH battery is powered, and is made
With short life, probe cannot work after 3 ~ 4 years.Four is high-voltage capacitance power taking or wireless power taking, stems from voltage sensor thinking, peace
Full property and energy transfer efficiency are difficult points, and are not suitable for livewire work installation.These defects have had a strong impact on distribution automation
On-line monitoring and the application effect for positioning, and then affect power supply reliability.
Therefore, the technological innovation of power system design is following key technology and development trend, and prior art need
Improve.
Utility model content
In view of above-mentioned the deficiencies in the prior art part, the purpose of this utility model is to provide a kind of adaptive CT sensing to take
, there is electric current power taking dead band mistake to solve existing built on stilts two distant basic model distribution terminal power-supply systems in the power control system of electricity
Greatly, and the problem that can not automatically adjust and protect.
In order to achieve the above object, this utility model takes technical scheme below：
A kind of adaptive CT senses the power control system of power taking, is connected with micropower load, and it includes：
For carrying out the CT sensing electricity-fetching modules that power taking obtains alternating voltage to preset range electric current；
For carrying out exporting the full-wave rectification block of DC voltage after all wave rectification to alternating voltage；
For being charged to built-in energy pond according to DC voltage；When detection energy cell voltage is more than protection voltage, to CT
Sensing electricity-fetching module is released；When detection energy cell voltage is less than or equal to protection voltage, the self-regulation of energy cell voltage is exported
Power protection module；
For adjusting the charging shape of the power supply state and super capacitor loaded to micropower according to the size of energy cell voltage
The energy of state collects control module；
CT sensing electricity-fetching module, full-wave rectification block, self-regulation power protection module, energy collect control module according to
Secondary connection.
In the power control system of described adaptive CT sensing power taking, the CT sensings electricity-fetching module includes two semicircles
The iron core of ring body, two iron core closure one torus of composition；The winding arranged on arbitrary iron core is the coil of nanocrystalline material, around
Draw two terminals and connect full-wave rectification block in one end of group.
In the power control system of described adaptive CT sensing power taking, a diameter of 54.4mm of the toric inner circle,
Outside diameter is 80.6mm；A height of 12.6mm of semi-circular ring, a width of 13.1mm of semi-circular ring.
In the power control system of described adaptive CT sensing power taking, it is provided with the iron core that winding is set and forbids
Winding region.
In the power control system of described adaptive CT sensing power taking, the self-regulation power protection module includes first
Metal-oxide-semiconductor, diode, energy pond, first resistor and over-pressed control unit；
The source electrode of first metal-oxide-semiconductor connects the 2nd foot of rectifier bridge and the positive pole of diode by first resistor；Described two
The negative pole connection energy of pole pipe collects the input of control module, the one end in energy pond and over-pressed control unit；First metal-oxide-semiconductor
The control end of the over-pressed control unit of grid connection, the other end and ground in the drain electrode connection energy pond of the first metal-oxide-semiconductor.
In the power control system of described adaptive CT sensing power taking, the over-pressed control unit include comparable chip,
Second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the second metal-oxide-semiconductor；
One end of one end, one end of 3rd resistor and the 5th resistance of the+IN feet connection second resistance of the comparable chip；
One end of the other end, the one end in energy pond and the 4th resistance of the VS feet connection second resistance of comparable chip；The OUT of comparable chip
Foot connects the other end, the grid of the other end, one end of the 6th resistance and the second metal-oxide-semiconductor of the 5th resistance of the 4th resistance；Relatively
The other end and ground of the GND feet connection 3rd resistor of chip, the source electrode of the second metal-oxide-semiconductor connects the grid of metal-oxide-semiconductor, the second metal-oxide-semiconductor
Drain electrode the 7th resistance of connection one end, the other end of the 7th resistance connects the other end of the 6th resistance and the VS of comparable chip
Foot.
In the power control system of described adaptive CT sensing power taking, the over-pressed control unit also includes the first electric capacity
With the second electric capacity；
One end of first electric capacity connects the VS feet of comparable chip, and the other end of the first electric capacity is grounded, the second electric capacity
The OUT feet of one end connection comparable chip and the grid of the second metal-oxide-semiconductor, the other end of the second electric capacity connects the GND feet of comparable chip
And ground.
Compared to prior art, the adaptive CT that this utility model is provided senses the power control system of power taking, by CT
Sensing electricity-fetching module is to preset range electric current（3~630A）Carry out power taking and obtain alternating voltage, electric current can sense power taking and obtain for 5A
The electric energy needed for built on stilts two distant basic model distribution terminal global function operations must be met, extend the use of two distant basic model distribution terminals
Life-span and range of application；Full-wave rectification block carries out exporting DC voltage after all wave rectification to alternating voltage；Self-regulation power is prevented
Shield module charges according to DC voltage to built-in energy pond；When detection energy cell voltage is more than protection voltage, CT sensings are taken
Electric module is released；When detection energy cell voltage is less than or equal to protection voltage, energy cell voltage is exported；Energy collects control mould
Tuber adjusts the charged state of the power supply state and super capacitor loaded to micropower according to the size of energy cell voltage, takes sensing
Electric energy power maintains all the time maximum output, and electric energy is obtained by, and reduces and wastes and generate heat；Self-regulation power protection module pair
The power-supply system high current sensing moment impact electric current such as power taking or lightning surge automatically adjusts and protects, and can automatically store electricity
, energy can be switched.
Description of the drawings
Fig. 1 is the structural frames of the power control system Application Example of the adaptive CT sensing power taking that this utility model is provided
Figure.
Fig. 2 be this utility model provide adaptive CT sensing power taking power control system in CT sensing electricity-fetching module
Schematic diagram.
Fig. 3 be this utility model provide adaptive CT sensing power taking power control system in CT sensing electricity-fetching module
Scale diagrams.
Fig. 4 be this utility model provide adaptive CT sensing power taking power control system in CT sensing electricity-fetching module,
The circuit diagram of full-wave rectification block, self-regulation power protection module.
Fig. 5 be this utility model provide adaptive CT sensing power taking power control system in energy collect control module
Structured flowchart.
Fig. 6 is the power control method stream of the power control system of the adaptive CT sensing power taking that this utility model is provided
Cheng Tu.
Specific embodiment
Can not carry out sensing power taking acquisition by small current for existing built on stilts two distant basic model distribution terminal power-supply systems
Electric energy needed for global function operation, the problems such as have a strong impact on the service life of its product.This utility model provides a kind of self adaptation
CT senses the power control system of power taking, is related to electromagnetic induction technology, power electronics control and e measurement technology；It is applied to circuit to bear
Charged current is 3 ~ 600A, for the power supply system that 10kV and 35k distribution lines on-line monitoring and fault locator provide working power
System；With Power auto-adjustment and protection circuit, sensing power taking that can be reliable and stable in 3A ~ 630A current ranges.To make
The purpose of this utility model, technical scheme and advantage are clearer, clear and definite, and the embodiment that develops simultaneously referring to the drawings is new to this practicality
Type is further described.It should be appreciated that specific embodiment described herein is not used to only to explain this utility model
Limit this utility model.
Fig. 1 is referred to, the power control system of the adaptive CT sensing power taking that this utility model is provided is loaded with micropower
Connection, including CT sensing electricity-fetching modules 10, full-wave rectification block 20, self-regulation power protection module 30 and energy collection control mould
Block 40.The CT sensings electricity-fetching module 10, full-wave rectification block 20, self-regulation power protection module 30, energy collect control mould
Block 40 is sequentially connected.The CT senses electricity-fetching module 10 to preset range electric current（3A~630A）Carry out power taking and obtain alternating voltage
（AC±）, the little electricity that also can be sensed to 5A needed for the built on stilts two distant basic model distribution terminal global functions operation of power taking acquisition satisfaction of electric current
Energy.Full-wave rectification block 20 carries out exporting DC voltage V after all wave rectification to alternating voltage.Self-regulation power protection module 30
Built-in energy pond is charged according to DC voltage V；When detection energy cell voltage DC is more than the protection voltage for setting, CT sensings are taken
Sensing electricity taking coil in electric module is released（Generally release to during threshold voltage and stop）；Detection energy cell voltage DC is less than
During equal to protection voltage, energy cell voltage DC is exported.Energy is collected control module 40 and is adjusted according to the size of energy cell voltage DC
Power supply state and super capacitor to micropower load（Super capacitor, are called electrochemical capacitor, farad capacitor）'s
Charged state, makes sensing power taking electric energy power maintain maximum output all the time, and electric energy is obtained by, and reduces and wastes and generate heat.
Fig. 2 and Fig. 3 is seen also, the CT sensings electricity-fetching module 10 is current transformer.The CT sensings of the present embodiment
Electricity-fetching module 10 includes the iron core 110 of two semi-circular rings, two iron core closure one torus of composition, the winding 120 on iron core
For the coil of nanocrystalline material（Sense electricity taking coil）.The iron core coating, painting thickness is 0.3mm.The torus
Interior circular diameter d1 be 54.4mm, outside diameter d2 be 80.6mm；The high h of semi-circular ring is 12.6mm, and the wide w of semi-circular ring is
13.1mm.Coiling on only one iron core, the preferably number of turn are 600, and from one end of winding two terminals are drawn（I.e. Fig. 2 is left
Two parallel lines on side）Connect full-wave rectification block 20 respectively.And be provided with the iron core and forbid winding region 130, as shown in Figure 3
Shadow region.It is described to forbid winding region 130 to include being located at the first height H1 of semi-circular ring one end（5mm）Region and
The second height H2 of semi-circular ring the other end（14mm）Region.Setting forbids winding region 130 to be more convenient user installation.This
The error of all sizes is ± 0.2mm in embodiment；Number of turns, winding area to iron core etc. are arranged can be according to practical application
It is adjusted, it is not restricted herein.
Two semi-circular rings can separate, and permanent opening is closed by fixture after torus is enclosed within cable.Electric current is mutual
By primary current in the middle of sensor, Secondary Winding just can induce weak voltage, the wiring of Secondary Winding be terminated to into all-wave whole
Flow module 20, then processed through follow-up self-regulation power protection module 30 and energy collection control module 40, you can take
Obtain required supply voltage.Arranged by above-mentioned size and the material of coil is selected, be so capable of achieving built on stilts two distant basic models
Distribution terminal is to more small current（Such as 5A）Power taking, meet the working power needed for Micro Energy Lose load, and prior art can only be right
The small current power taking of minimum 10A.
Fig. 4 is seen also, the full-wave rectification block 20 is rectifier bridge, and its internal diode can adopt Schottky two
Pole pipe or low-loss diode.The 1st foot connection CT of rectifier bridge senses the negative terminals of electricity-fetching module 10, the 3rd foot of rectifier bridge
Connection CT senses the positive terminals of electricity-fetching module 10, and the 2nd foot of rectifier bridge connects self-regulation power protection module 30, rectifier bridge
4th foot is grounded.
The self-regulation power protection module 30 includes high-power the first controllable metal-oxide-semiconductor Q1 of Low ESR（Model
CSD18563Q5A）, diode D, energy pond C0（Capacitive energy pond）, first resistor R1 and over-pressed control unit 310；Described
The source electrode of one metal-oxide-semiconductor Q1 connects the 2nd foot of rectifier bridge and the positive pole of diode D by first resistor R1；The diode D's is negative
Pole connection energy collects the input in of control module 40, one end of energy pond C0 and over-pressed control unit 310；First metal-oxide-semiconductor
Control end ct of the over-pressed control unit 310 of grid connection of Q1, the other end of the drain electrode connection energy pond C0 of the first metal-oxide-semiconductor Q1 and
Ground.
The DC voltage V of the output of full-wave rectification block 20 charges to energy pond C0.Assume energy pond C0 protection voltage be
U0, rated voltage are Ut.When the detection energy cell voltage DC of over-pressed control unit 310 is less than or equal to protection voltage, letter is closed in output
Number control the first metal-oxide-semiconductor Q1 cut-offs, energy cell voltage DC to follow-up energy collects control module 40.Serve as pressing control unit
When 310 detection energy cell voltage DC are more than the protection voltage U0 for setting, output open signal controls the first metal-oxide-semiconductor Q1 conductings, then
The outfan of full-wave rectification block 20 is shorted.DC voltage V is released to ground across energy pond C0（Equivalent to the electricity on coil
Pressure is released, and no longer energy pond C0 is charged）, meanwhile, the electric energy on the C0 of energy pond is let out also by over-pressed control unit 310
Put, energy cell voltage DC declines.
Due to being subsequently also possible to can charge to energy pond C0, energy cell voltage DC must be made to drop to when reaching threshold voltage
Stopping is released.Then the over-pressed control unit 310 also detects that pressure DC drops to output shutdown signal control when reaching threshold voltage
First metal-oxide-semiconductor Q1 ends, and short-circuit disappearance stopping is released.
In the present embodiment, over-pressed control unit 310 is made up of low power consumption voltage monitoring element and comparison control circuit, specifically
Including：Comparable chip U（Model LT6703IDC-3#TRMPBF）, second resistance R2,3rd resistor R3, the 4th resistance R4,
Five resistance R5, the 6th resistance R6, the 7th resistance R7 and the second metal-oxide-semiconductor Q2；+ IN feet connection the second resistance of comparable chip U
One end of one end of R2, one end of 3rd resistor R3 and the 5th resistance R5；The VS feet of comparable chip U connect the another of second resistance R2
One end（The input in of i.e. over-pressed control unit 310）, energy pond C0 one end and one end of the 4th resistance R4；Comparable chip U
OUT feet connect the other end of the 4th resistance R4, the other end of the 5th resistance R5, one end of the 6th resistance R6 and the second metal-oxide-semiconductor
The grid of Q2；The other end and ground of GND feet connection 3rd resistor R3 of comparable chip U, the source electrode of the second metal-oxide-semiconductor Q2（That is overvoltage
Control end ct of control unit 310）The grid of connection metal-oxide-semiconductor Q1, the one of drain electrode the 7th resistance R7 of connection of the second metal-oxide-semiconductor Q2
End, the other end of the 7th resistance R7 connects the other end of the 6th resistance R6 and the VS feet of comparable chip U.
Wherein, the second metal-oxide-semiconductor Q2 is NMOS tube, and comparable chip U judges energy cell voltage DC less than or equal to protection electricity
During pressure U0, the Q2 cut-offs of output the second metal-oxide-semiconductor of low level control, the source electrode of the second metal-oxide-semiconductor Q2 is equivalent to output shutdown signal（Without electricity
Pressure, equivalent to low level）.When comparable chip U judges energy cell voltage DC more than protection voltage U0, output high level control the
Two metal-oxide-semiconductor Q2 are turned on, and the source electrode of the second metal-oxide-semiconductor Q2 exports the open signal of high level.
In further embodiment, the over-pressed control unit 310 also includes the first electric capacity C1 and the second electric capacity C2；Described
One end of one electric capacity C1 connects the VS feet of comparable chip U, the other end ground connection of the first electric capacity C1, one end connection of the second electric capacity C2
The grid of the OUT feet of comparable chip U and the second metal-oxide-semiconductor Q2, the second electric capacity C2 the other end connection comparable chip U GND feet and
Ground.The first electric capacity C1 can be filtered to energy cell voltage DC, make the second metal-oxide-semiconductor Q2 that stable height electricity is exported when turning on
It is flat.Second electric capacity C2 is filtered to the grid voltage of the second metal-oxide-semiconductor Q2, makes the second metal-oxide-semiconductor Q2 more stable when turning on.
Fig. 5 is seen also, the energy collects control module 40 includes MPPT（Maximum Power Point
Tracking, MPPT maximum power point tracking）Control unit 41, buck unit 42, the control of power conversion unit 43, back-up source
The battery of unit 44, charge and discharge control unit 45,3.3V（Ni-MH battery）46 and 5.5V super capacitor 47.The MPPT controls are single
First 41 built-in voltage comparators, are compared to carry out follow-up buck adjustment by the size to energy cell voltage DC, can begin
Maintain CT sensing outputs near maximum power point eventually, entirety improves power taking ability.The MPPT control units 41 are used to judge
The size of energy cell voltage simultaneously exports corresponding control signal.Buck unit 42 is used to be risen according to corresponding control signal
Pressure obtains booster voltage or blood pressure lowering obtains step-down voltage.Power conversion unit is defeated after voltage conversion for carrying out to step-down voltage
Go out to supply voltage to micropower load supplying, also obtain charging voltage；And to booster voltage, cell voltage or capacitance voltage
Carry out output after voltage conversion and supply voltage to micropower load supplying.Back-up source control unit is used for when battery is powered,
Cell voltage is exported to power conversion unit.Charge and discharge control unit, for charging voltage to be charged to super capacitor；And super
During level capacitances to supply power, control super capacitor discharges output capacitance voltage to power conversion unit.
Specially：When MPPT control units 41 judge that energy cell voltage DC is more than upper limit threshold values, buck unit is controlled
42 blood pressure lowerings obtain step-down voltage.Power conversion unit 43 carries out voltage conversion to step-down voltage（Be converted to）After export supply voltage
Micropower load supplying is given, charging voltage is also exported and is charged to super capacitor by charge and discharge control unit 45.
When MPPT control units 41 judge that energy cell voltage DC is less than lower limit threshold values, the boosting of control buck unit 42 is obtained
Obtain booster voltage.Power conversion unit 43 carries out output after voltage conversion to booster voltage and supplies voltage to micropower load confession
Electricity, now only powers and super capacitor is not charged.
The battery 46, when needing battery to power, by back-up source control unit 44 battery is exported as back-up source
Voltage, Jing power conversion units 43 are converted to and supply voltage to micropower load supplying.When not needing battery to power, back-up source
Control unit 44 disconnects the output channel of battery 46.
When needing super capacitor to power, the control super capacitor 47 of charge and discharge control unit 45 discharges, Jing power conversion units 43
Be converted to and supply voltage to micropower load supplying.Charge and discharge control unit 45 automatically adjusts charging current method using hardware type,
Charging current to super capacitor can be automatically adjusted, most according to line load size of current and system micropower load state
Big degree improves capacity usage ratio, and the use of balanced energy reduces energy heating and wastes.
In the specific implementation, the energy collects control module 40 and can adopt the intelligent integrated formula energy of model ADP5091
Amount collection power management chip.
The power control system of power taking is sensed based on above-mentioned adaptive CT, this utility model also provides a kind of adaptive CT
The power control method of sensing power taking, sees also Fig. 6, and the power control method includes：
S100, preset range electric current is carried out power taking obtain alternating voltage, alternating voltage is carried out after all wave rectification export
DC voltage；
S200, according to DC voltage to energy pond charge；When detection energy cell voltage is more than protection voltage, CT sensings are taken
Electric module is released；When detection energy cell voltage is less than or equal to protection voltage, energy cell voltage is exported；
S300, the charging shape that the power supply state and super capacitor loaded to micropower is adjusted according to the size of energy cell voltage
State.
In sum, adaptive CT of the present utility model senses the power control system of power taking, distant for existing built on stilts two
The power-supply system defect present situation of basic model distribution terminal, using multichannel power management system, collection CT power takings pressure point of maximum efficiency with
Track（MPPT）, battery, super capacitor possess self-regulation power protection circuit, electric energy, the electricity of switching energy are stored automatically in one
Source power taking control function, can the continuous power taking in the range of circuit 3A ~ 630A, circuit 5A can meet power distribution network on-line monitoring with therefore
Barrier positioning acquisition unit energy normally needed for operation, without battery, so as to effectively extend life of product, greatly improves
The working power reliability of two distant distribution power automation terminals, meeting the working power of built on stilts two distant basic model distribution terminals needs
Ask.
For line fault overcurrent and lightning impulse, by self-regulation power protection module carry out self adaptation release it is anti-
Shield, so as to realize that sensing power taking automatically adjusts and protect.
It should be appreciated that application of the present utility model is not limited to above-mentioned citing, those of ordinary skill in the art are come
Say, can according to the above description be improved or be converted, all these modifications and variations should all belong to the appended power of this utility model
The protection domain that profit is required.
Claims (7)
1. a kind of adaptive CT senses the power control system of power taking, is connected with micropower load, it is characterised in that include：
For carrying out the CT sensing electricity-fetching modules that power taking obtains alternating voltage to preset range electric current；
For carrying out exporting the full-wave rectification block of DC voltage after all wave rectification to alternating voltage；
For being charged to built-in energy pond according to DC voltage；When detection energy cell voltage is more than protection voltage, CT is sensed
Electricity-fetching module is released；When detection energy cell voltage is less than or equal to protection voltage, the self-regulation power of energy cell voltage is exported
Protection module；
For adjusting the charged state of power supply state to micropower load and super capacitor according to the size of energy cell voltage
Energy collects control module；
The CT sensings electricity-fetching module, full-wave rectification block, self-regulation power protection module, energy are collected control module and are connected successively
Connect.
2. adaptive CT according to claim 1 senses the power control system of power taking, it is characterised in that the CT sensings
Electricity-fetching module includes the iron core of two semi-circular rings, two iron core closure one torus of composition；The winding arranged on arbitrary iron core
For the coil of nanocrystalline material, one end of winding is drawn two terminals and connects full-wave rectification block.
3. adaptive CT according to claim 2 senses the power control system of power taking, it is characterised in that the torus
The a diameter of 54.4mm of inner circle, outside diameter is 80.6mm；A height of 12.6mm of semi-circular ring, semi-circular ring it is a width of
13.1mm。
4. adaptive CT according to claim 2 senses the power control system of power taking, it is characterised in that the setting around
It is provided with the iron core of group and forbids winding region.
5. adaptive CT according to claim 1 senses the power control system of power taking, it is characterised in that the self-regulation
Power protection module includes the first metal-oxide-semiconductor, diode, energy pond, first resistor and over-pressed control unit；
The source electrode of first metal-oxide-semiconductor connects the 2nd foot of rectifier bridge and the positive pole of diode by first resistor；The diode
Negative pole connection energy collect the input of control module, the one end in energy pond and over-pressed control unit；The grid of the first metal-oxide-semiconductor
The control end of the over-pressed control unit of connection, the other end and ground in the drain electrode connection energy pond of the first metal-oxide-semiconductor.
6. adaptive CT according to claim 5 senses the power control system of power taking, it is characterised in that described excessively voltage-controlled
Unit processed includes comparable chip, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance and the
Two metal-oxide-semiconductors；
One end of one end, one end of 3rd resistor and the 5th resistance of the+IN feet connection second resistance of the comparable chip；Relatively
One end of the other end, the one end in energy pond and the 4th resistance of the VS feet connection second resistance of chip；The OUT feet of comparable chip connect
Connect the other end, the grid of the other end, one end of the 6th resistance and the second metal-oxide-semiconductor of the 5th resistance of the 4th resistance；Comparable chip
GND feet connection 3rd resistor the other end and ground, the source electrode of the second metal-oxide-semiconductor connects the grid of metal-oxide-semiconductor, the leakage of the second metal-oxide-semiconductor
Pole connects one end of the 7th resistance, and the other end of the 7th resistance connects the other end of the 6th resistance and the VS feet of comparable chip.
7. adaptive CT according to claim 6 senses the power control system of power taking, it is characterised in that described excessively voltage-controlled
Unit processed also includes the first electric capacity and the second electric capacity；
One end of first electric capacity connects the VS feet of comparable chip, the other end ground connection of the first electric capacity, one end of the second electric capacity
The OUT feet of connection comparable chip and the grid of the second metal-oxide-semiconductor, the GND feet and ground of the other end connection comparable chip of the second electric capacity.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593993A (en) * | 2018-07-03 | 2018-09-28 | 深圳市惠立智能电力科技有限公司 | Induction based on line load electric current takes electrical measuring systems |
| CN113162184A (en) * | 2021-04-30 | 2021-07-23 | 厦门四信智慧电力科技有限公司 | Automatic power supply control system and method for CT power taking |
| CN115528791A (en) * | 2022-11-22 | 2022-12-27 | 南方电网数字电网研究院有限公司 | Self-adaptive energy taking and placing method, system and device of induction energy taking loop |
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2016
- 2016-08-24 CN CN201620929231.5U patent/CN206117261U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593993A (en) * | 2018-07-03 | 2018-09-28 | 深圳市惠立智能电力科技有限公司 | Induction based on line load electric current takes electrical measuring systems |
| CN113162184A (en) * | 2021-04-30 | 2021-07-23 | 厦门四信智慧电力科技有限公司 | Automatic power supply control system and method for CT power taking |
| CN113162184B (en) * | 2021-04-30 | 2024-04-23 | 厦门四信智慧电力科技有限公司 | Automatic power supply control system for CT power taking |
| CN115528791A (en) * | 2022-11-22 | 2022-12-27 | 南方电网数字电网研究院有限公司 | Self-adaptive energy taking and placing method, system and device of induction energy taking loop |
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