CN103997203B - The power circuit of distribution net equipment temperature rise monitoring device - Google Patents
The power circuit of distribution net equipment temperature rise monitoring device Download PDFInfo
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- CN103997203B CN103997203B CN201410231432.3A CN201410231432A CN103997203B CN 103997203 B CN103997203 B CN 103997203B CN 201410231432 A CN201410231432 A CN 201410231432A CN 103997203 B CN103997203 B CN 103997203B
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Abstract
The invention discloses a kind of power circuit of distribution net equipment temperature rise monitoring device, including input circuit and output circuit；The input circuit includes current foldback circuit and filtering accumulator；The current foldback circuit is connected with connection-peg J2, and connects external power source by connection-peg J2；The output circuit includes reduction voltage circuit, filter circuit of pressure-stabilizing and feedback resistance R4～R6, energy storage inductor L2；Feedback resistance R4～the R6, energy storage inductor L2 are connected between the reduction voltage circuit, filter circuit of pressure-stabilizing.The power circuit of the distribution net equipment temperature rise monitoring device of the present invention, have the advantages that the high and low power consumption of power supply reliability, strong antijamming capability.
Description
Technical field
The present invention relates to a kind of power circuit of distribution net equipment temperature rise monitoring device.
Background technology
The controller switching equipment of power system is typically made up of electric equipments such as chopper, ring main unit, cable, bus, switch cubicles.
Which is connected by bus, lead, cable etc. each other, as electric current flows through generation heat, so almost all of electric fault
The change of capital causing trouble point temperature.The monitoring of temperature is abnormal to high temperature, the power equipment such as be rapidly heated real-time to realizing
Alarm, can be found and processing equipment excess temperature phenomenon, it is to avoid ablation causes serious equipment breakdown in time, contribute to quick positioning
Hidden trouble of equipment, Accident prevention occur, and accomplish to prevent trouble before it happens.Simultaneously for realize equipment state overhauling provide important evaluation according to
According to alleviating the operating pressure of line producers' collecting device state, have pole on efficiency and intellectual analysis level is realized
Big advantage, distribution net equipment maintenance is changed from periodic inspection to repair based on condition of component.
Distribution net equipment temperature rise monitoring device typically using solar panels accumulator battery or take can CT carry out power taking, according to not
Same site of deployment selects suitable power supply mode, typically adopts the sun in the outdoor or sun-drenched distribution net equipment in field
The mode of energy plate accumulator battery.Can be more convenient when being taken using CT in city backbone nodes or load current larger part.Two
Kind of mode is typically voltage DC 12V, electric current 500-1500mA output, and output is less, due to temperature rise monitoring device long when
Between non-stop run, for the reliability of safeguards system, the conversion efficiency of distribution net equipment temperature rise monitoring device power circuit and low
Power consumption is particularly important.
The power supply unit of distribution net equipment temperature rise monitoring device, its power supply characteristic are trickle continued power, there is provided high-power energy
Power is mostly poor.It requires that the higher the better for temperature rise monitoring device interior power design efficiency, and there is overcurrent protection and short circuit guarantor
The ability of shield, and reduce the probability for burning out device.The input of the power circuit is connected with the output of power supply unit.
Fig. 2 is the power circuit of the distribution net equipment temperature rise monitoring device that prior art is realized.J1 is supply socket, self- recoverage
Electric fuse PTC1 and TVS-D2 collaborations can be with anti-overflow, anti-pulse voltage, and C1 and C3 is filter capacitor, and U1 will for electric pressure converter
DC 12V are converted into DC 5V, provide power supply for load below, and C2 and C4 is low-voltage filter electric capacity, and C5 is storage capacitor, after realization
Level load or the instantaneous power consumption of sending signal module.
The subject matter that prior art is present：The circuit design energy conversion efficiency is low, and non-low-power consumption is particularly taking
In the case of energy difficulty, waste compared with multi-energy.For example：When circuit load is 500mA, circuit input voltage 12V, electricity
Stream 500mA, output voltage 5V, electric current 500mA, then power consumption is 3.5W, and conversion efficiency is only 41.67%.And need in rear class
When wanting momentary high power, power supply changeover device U1 cannot be provided and only be provided limited power by electric capacity C5 energy storage.So Fig. 1 is electric
The problems such as road has high power consumption and poor reliability.
Content of the invention
The present invention is for avoiding weak point present in above-mentioned prior art, there is provided a kind of distribution net equipment temperature rise monitoring dress
The power circuit that puts, to reduce power consumption, improve power supply reliability and capacity of resisting disturbance.
The present invention is employed the following technical solutions for solving technical problem.
The power circuit of distribution net equipment temperature rise monitoring device, which is structurally characterized in that, including input circuit and output circuit；Institute
Stating input circuit includes current foldback circuit and filtering accumulator；The current foldback circuit is connected with connection-peg J2, and
External power source is connected by connection-peg J2；The output circuit include reduction voltage circuit, filter circuit of pressure-stabilizing and feedback resistance R4～
R6, energy storage inductor L2；Feedback resistance R4～the R6, energy storage inductor L2 be connected to the reduction voltage circuit, filter circuit of pressure-stabilizing it
Between.
The construction featuress of the power circuit of the distribution net equipment temperature rise monitoring device of the present invention lie also in：
The current foldback circuit includes resettable fuse PTC2 and TVS pipe D3；The resettable fuse PTC2's
One end is connected with a terminal of the connection-peg J2, the other end of the resettable fuse PTC2 and TVS pipe D3
Negative pole be connected, the positive pole of TVS pipe D3 is connected with another terminal of the connection-peg J2.
The filtering accumulator includes alminium electrolytic condenser C7～C8, inductance L1, nonpolarity ceramic disc capacitor C9～C10；Institute
The positive pole for stating alminium electrolytic condenser C7 is connected with one end of inductance L1, the other end of alminium electrolytic condenser C7 and TVS pipe D3
Positive pole is connected and is grounded；After being connected in parallel between the alminium electrolytic condenser C8, nonpolarity ceramic disc capacitor C9, C10 two-by-two one
End is connected with the other end of the inductance L1, while being also connected with the reduction voltage circuit of the output circuit；The aluminium electroloysis
Other end ground connection after being connected in parallel between electric capacity C8, nonpolarity ceramic disc capacitor C9, C10 two-by-two.
The reduction voltage circuit includes supply convertor U2, bootstrap capacitor C6 and Schottky diode D4；The power conversion
Device U2 is connected with the filtering accumulator of the input circuit；The Schottky diode D4 by the bootstrap capacitor C6 with
The supply convertor U2 is connected；
The filter circuit of pressure-stabilizing includes alminium electrolytic condenser C11, C12 and nonpolarity ceramic disc capacitor C13；The aluminium electroloysis electricity
Hold the one end between C11, C12 and nonpolarity ceramic disc capacitor C13 after parallel connection two-by-two by energy storage inductor L2 and the power conversion
Device U2 is connected, between described alminium electrolytic condenser C11, C12 and nonpolarity ceramic disc capacitor C13 two-by-two parallel connection after the other end with anti-
One end of feed resistance R4 is connected, and the other end of the feedback resistance R4 passes sequentially through feedback resistance R6 and feedback resistance R5 and institute
State supply convertor U2 to be connected.
Compared with the prior art, the present invention has the beneficial effect that：
The power circuit of the distribution net equipment temperature rise monitoring device of the present invention, its input circuit include resettable fuse
The components and parts such as PTC2, stabilivolt D3, storage capacitor C7, C8, filter inductance L1, filter capacitor C9, C10, its output circuit include
The unit such as inductance L2, electric capacity C6, C11, C12, C13, resistance R4, R5, R6, DC/DC supply convertor U2, Schottky diode D4 device
Part.
In the input stage design of the power circuit of the present invention, protective measure is employed, can effectively prevent circuit input
The problems such as short circuit, excessively stream, and the characteristic according to power supply unit, using storage capacitor before supply convertor U2, ensure U2's
It is steady that instantaneous power is supplied, and output stage adopts the filter capacitor effective guarantee quality of power supply ripple, and adopts Schottky
Diode coordinates supply convertor U2 so as to which conversion efficiency is effectively lifted.It is lower that the design of such power circuit is allowed to power consumption, wink
When power relatively reliable, efficiently solve the deficiencies in the prior art.
The power circuit of the distribution net equipment temperature rise monitoring device of the present invention, what especially suitable needs were wirelessly transferred distributed are matched somebody with somebody
Net equipment temperature rise monitoring device, realizes that with the power circuit of low power consumption high efficiency the power supply of distribution net equipment temperature rise monitoring device sets
Meter；Increase safety protective circuit, realize the security performance of temperature rise monitoring device, with the high and low power consumption of power supply reliability, anti-interference
The advantages of ability is strong.
Description of the drawings
Fig. 1 is the schematic diagram of the power circuit of the distribution net equipment temperature rise monitoring device of the present invention.
Schematic diagrams of the Fig. 2 for the power circuit of the distribution net equipment temperature rise monitoring device of prior art.
Below by way of specific embodiment, and the invention will be further described to combine accompanying drawing.
Specific embodiment
Referring to Fig. 1, the power circuit of distribution net equipment temperature rise monitoring device, which includes input circuit and output circuit；Described
Input circuit includes current foldback circuit and filtering accumulator；The current foldback circuit is connected with connection-peg J2, and is led to
Cross connection-peg J2 connection external power sources；The output circuit include reduction voltage circuit, filter circuit of pressure-stabilizing and feedback resistance R4～R6,
Energy storage inductor L2；Feedback resistance R4～the R6, energy storage inductor L2 are connected between the reduction voltage circuit, filter circuit of pressure-stabilizing.
The current foldback circuit includes resettable fuse PTC2 and TVS pipe D3；The resettable fuse PTC2's
One end is connected with a terminal of the connection-peg J2, the other end of the resettable fuse PTC2 and TVS pipe D3
Negative pole be connected, the positive pole of TVS pipe D3 is connected with another terminal of the connection-peg J2.
The filtering accumulator includes alminium electrolytic condenser C7～C8, inductance L1, nonpolarity ceramic disc capacitor C9～C10；Institute
The positive pole for stating alminium electrolytic condenser C7 is connected with one end of inductance L1, the other end of alminium electrolytic condenser C7 and TVS pipe D3
Positive pole is connected and is grounded；After being connected in parallel between the alminium electrolytic condenser C8, nonpolarity ceramic disc capacitor C9, C10 two-by-two one
End is connected with the other end of the inductance L1, while being also connected with the reduction voltage circuit of the output circuit；The aluminium electroloysis
Other end ground connection after being connected in parallel between electric capacity C8, nonpolarity ceramic disc capacitor C9, C10 two-by-two.
The reduction voltage circuit includes supply convertor U2, bootstrap capacitor C6 and Schottky diode D4；The power conversion
Device U2 is connected with the filtering accumulator of the input circuit；The Schottky diode D4 by the bootstrap capacitor C6 with
The supply convertor U2 is connected；
The filter circuit of pressure-stabilizing includes alminium electrolytic condenser C11, C12 and nonpolarity ceramic disc capacitor C13；The aluminium electroloysis electricity
Hold the one end between C11, C12 and nonpolarity ceramic disc capacitor C13 after parallel connection two-by-two by energy storage inductor L2 and the power conversion
Device U2 is connected, between described alminium electrolytic condenser C11, C12 and nonpolarity ceramic disc capacitor C13 two-by-two parallel connection after the other end with anti-
One end of feed resistance R4 is connected, and the other end of the feedback resistance R4 passes sequentially through feedback resistance R6 and feedback resistance R5 and institute
State supply convertor U2 to be connected.
Referring to Fig. 1, the power circuit of the distribution net equipment temperature rise monitoring device of the present invention is by input circuit and output circuit group
Into.Input circuit includes current foldback circuit and filtering accumulator；Output circuit includes DC/DC supply convertor U2, feedback
Resistance and filter regulator circuit.
The current foldback circuit is made up of resettable fuse PTC2 and TVS pipe D3-SMCJ40A；The backward end of D3 with
One end of PTC2 is connected, and PTC2 can effectively prevent electric current excessive, it is allowed to which the excessively stream for passing through is larger, but the response time of PTC2 is
Ms levels, response time are slightly long.TVS (Transient Voltage Suppressor, Transient Voltage Suppressor) pipe D3 had
Pressure overcurrent protection function, response time is only ns levels, but allows the electric current for passing through not as good as PTC2, and both seamless can combine,
The failures such as overload and the short circuit of circuit can be reliably prevented.
Filtering accumulator is by alminium electrolytic condenser C7, inductance L1, alminium electrolytic condenser C8, nonpolarity ceramic disc capacitor C9, C10 group
Into.Due to the characteristic of power supply unit, Large Copacity alminium electrolytic condenser C7 and C8 is adopted before supply convertor for storage capacitor, can be with
Greatly improve the stability of supply convertor.Due to power supply unit input stage longer by circuit, the ripple of input voltage also compared with
Greatly, so design must be filtered using nonpolarity ceramic disc capacitor C9, C10.C9 can filter low-frequency ripple for 100nf, and C10 is
10nf can filter high frequency ripple.
Referring to Fig. 1, the input circuit includes the part such as protection circuit and filtering accumulator.The power interface J2-2
(terminal 2 on J2) input DC12V connects PTC2 one end, and the backward end of PTC2 other ends connection D3 meets electric capacity C7 positive poles, J2- simultaneously
1 (terminal 1 on J2), D3 forward ends are connected with power supply unit power supply GND with C7 negative poles, and L1 connects DC-12V, and the L1 other ends connect
The positive pole of storage capacitor C8 is connect, C8 negative poles are connected GND with one end of filter capacitor C9, C10.Its other end connection supply convertor
The VIN pins of U2, make input power reliably stable in 12V inputs.
Output circuit is made up of reduction voltage circuit and filter circuit of pressure-stabilizing.Supply convertor U2 has excellent linear and load
Control characteristic.By using a low on-resistance N-channel MOS FET (metal oxide semiconductor field effect tube) obtain compared with
High efficiency.Application uses Schottky backflow diode, for U2 is in the application of high input voltage and low output voltage occasion, Xiao
The reverse recovery characteristic and low forward voltage drop of special based diode D4 near ideals is particularly important diode characteristic.Which is reversely extensive
Multiple characteristic determines in each cycle the current surge when N-channel MOS FET (metal oxide semiconductor field effect tube) is turned on
Persistent period.When using D4, corresponding switching loss can be substantially reduced.
Bootstrap capacitor C6 in reduction voltage circuit between BOOST the and SW pins of U2 provides N-channel MOS FET inside conducting U2
Grid current.The electric capacity should be as 10nF, and should select high-quality, the ceramic condenser of low ESR.It can be bootstrapping electricity
Container connects a small resistor extending the conducting transit time of internal N-channel MOS FET.Can be prolonged using the resistance of 10 to 50 Ω
Long transit time.This contributes to the electromagnetic interference for reducing switch type power supply circuits.
Filter circuit of pressure-stabilizing is made up of alminium electrolytic condenser C11, C12 and non-polar C13.The C11 and C12 of 470uf can
Effectively filter out the switching noise and low-frequency ripple of power supply.Non-polar C13 is 100nf, can effectively filter out high frequency ripple, and three is simultaneously
Row effect is more preferable.
Referring to Fig. 1, bootstrap capacitor C6 connection energy storage inductor L2 one end and Schottky diode D4 end of oppisite phase, the positive terminations of D4
GND, L2 other end connection filtering C11, C12 and C13 one end, another termination GND, feedback resistance R4, R5, R6 connection is with U2's
4 feet, 8 feet simultaneously meet GND.It is VCC5 that this power circuit passes through DC converting by DC12V Efficient Conversions, and its efficiency is more by Schottky
Diode D4 is promoted to 90% or so so as to which power consumption is reduced in a large number, it is demonstrated experimentally that when such as Fig. 1 is supported under similarity condition,
Input voltage 12V, input current 228.5mA, output voltage is 5V, output current 500mA, consumes power consumption 0.25W, efficiency
91.16%, compare raising efficiency with Fig. 1 circuits for 49.49%.And by prime accumulator, make instantaneous power provide ability
Strengthen, significantly increase the reliability of circuit.
Although the present invention is hereinbefore illustrated according to preferred embodiment, it is not intended that the scope of the present invention is only
Above-mentioned structure is confined to, as long as the structure covered by the claims in the present invention is within protection domain.The art
The equivalent substitution structure that easily can develop after above-mentioned explanation is read of technical staff, in the essence without departing from the present invention
God and lower the made impartial change of scope and modification, should all be covered by within the scope of the present invention.
Claims (1)
1. the power circuit of distribution net equipment temperature rise monitoring device, is characterized in that, including input circuit and output circuit；The input
Circuit includes current foldback circuit and filtering accumulator；The current foldback circuit is connected with connection-peg J2, and by inserting
Joint J2 connects external power source；The output circuit includes reduction voltage circuit, filter circuit of pressure-stabilizing and feedback resistance R4～R6, energy storage
Inductance L2；Feedback resistance R4～the R6, energy storage inductor L2 are connected between the reduction voltage circuit, filter circuit of pressure-stabilizing；
The current foldback circuit includes resettable fuse PTC2 and TVS pipe D3；
The filtering accumulator includes alminium electrolytic condenser C7 and C8, inductance L1, nonpolarity ceramic disc capacitor C9 and C10；
The reduction voltage circuit includes supply convertor U2, bootstrap capacitor C6 and Schottky diode D4；
The filter circuit of pressure-stabilizing includes alminium electrolytic condenser C11 and C12, nonpolarity ceramic disc capacitor C13；
Wherein,
In the current foldback circuit, the terminal J2-2 on connection-peg J2 connects resettable fuse PTC2 one end, and self- recoverage insures
The backward end and electric capacity C7 positive poles of silk PTC2 other end connection TVS pipes D3, the terminal J2-1 on connection-peg J2, TVS pipe D3 are positive
End, alminium electrolytic condenser C7 negative poles are connected with GND, the positive pole and electric capacity C7 positive poles of inductance L1 one end connection direct current 12V power supplys；
In the filtering accumulator, the positive pole of inductance L1 other ends connection alminium electrolytic condenser C8, the negative pole of alminium electrolytic condenser C8,
One end connection GND of nonpolarity ceramic disc capacitor C9 and C10, the positive pole of alminium electrolytic condenser C8, nonpolarity ceramic disc capacitor C9 and C10
The other end connects the VIN pins of supply convertor U2；
In the reduction voltage circuit, the supply convertor U2 is connected with the filtering accumulator of the input circuit；Xiao
The negative pole of special based diode D4 is connected with the BOOST pins of the supply convertor U2 by the bootstrap capacitor C6；Described
The negative pole of Schottky diode D4 is connected with the SW pins of the supply convertor U2 simultaneously；Supply convertor U2 is low with one
The N-channel MOS FET of conducting resistance；Bootstrap capacitor C6 between the BOOST pins and SW pins of supply convertor U2 provides conducting
The grid current of N-channel MOS FET inside supply convertor U2；
In the filter circuit of pressure-stabilizing, between the alminium electrolytic condenser C11 and C12, nonpolarity ceramic disc capacitor C13 after parallel connection two-by-two
One end be connected with the SW pins of the supply convertor U2 by energy storage inductor L2, the alminium electrolytic condenser C11 and C12,
The other end between nonpolarity ceramic disc capacitor C13 after parallel connection two-by-two is connected with one end of feedback resistance R4, the feedback resistance
The other end of R4 passes sequentially through the TPAD pins and GND pins of feedback resistance R6 and feedback resistance R5 and the supply convertor U2
It is connected.
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| CN201410231432.3A CN103997203B (en) | 2014-05-28 | 2014-05-28 | The power circuit of distribution net equipment temperature rise monitoring device |
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| CN103997203B true CN103997203B (en) | 2017-03-15 |
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| CN111769538A (en) * | 2020-07-15 | 2020-10-13 | 北京无线电测量研究所 | Phased array antenna subarray power supply circuit and electric appliance with same |
| CN112271921B (en) * | 2020-11-02 | 2022-05-17 | 江苏林洋能源股份有限公司 | Module and method for realizing external high-power load of electric energy meter by providing low-power supply through electric energy meter |
| CN117353246A (en) * | 2021-05-11 | 2024-01-05 | 南京科达新控仪表有限公司 | Follow current energy storage demagnetizing device of permanent magnet synchronous motor and implementation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201639338U (en) * | 2010-03-26 | 2010-11-17 | 深圳市斯尔顿科技有限公司 | Charging management circuit and power supply adaptive device |
| CN101908762A (en) * | 2009-12-22 | 2010-12-08 | 中国航空工业集团公司第六三一研究所 | Pre-processing circuit for power supply |
| CN202333771U (en) * | 2011-10-14 | 2012-07-11 | 中联重科股份有限公司 | Power supply protection circuit and engineering machinery |
| CN202693675U (en) * | 2012-06-27 | 2013-01-23 | 华立仪表集团股份有限公司 | Power circuit for intelligent electric meter and three-phase intelligent electric meter with power circuit |
| CN203840201U (en) * | 2014-05-28 | 2014-09-17 | 国家电网公司 | Power supply circuit for network distribution equipment temperature rise monitoring device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101880030B1 (en) * | 2011-08-25 | 2018-07-23 | 삼성전자주식회사 | Sauce apparatus and method that control magnetic field using two sauce resonators in Wireless Resonant Power Transfer system |
-
2014
- 2014-05-28 CN CN201410231432.3A patent/CN103997203B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101908762A (en) * | 2009-12-22 | 2010-12-08 | 中国航空工业集团公司第六三一研究所 | Pre-processing circuit for power supply |
| CN201639338U (en) * | 2010-03-26 | 2010-11-17 | 深圳市斯尔顿科技有限公司 | Charging management circuit and power supply adaptive device |
| CN202333771U (en) * | 2011-10-14 | 2012-07-11 | 中联重科股份有限公司 | Power supply protection circuit and engineering machinery |
| CN202693675U (en) * | 2012-06-27 | 2013-01-23 | 华立仪表集团股份有限公司 | Power circuit for intelligent electric meter and three-phase intelligent electric meter with power circuit |
| CN203840201U (en) * | 2014-05-28 | 2014-09-17 | 国家电网公司 | Power supply circuit for network distribution equipment temperature rise monitoring device |
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