CN109546730A - A kind of transient state recording type fault detector and its method of supplying power to - Google Patents
A kind of transient state recording type fault detector and its method of supplying power to Download PDFInfo
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- CN109546730A CN109546730A CN201910064413.9A CN201910064413A CN109546730A CN 109546730 A CN109546730 A CN 109546730A CN 201910064413 A CN201910064413 A CN 201910064413A CN 109546730 A CN109546730 A CN 109546730A
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- 239000003990 capacitor Substances 0.000 claims abstract description 92
- 230000005611 electricity Effects 0.000 claims abstract description 73
- 239000004065 semiconductor Substances 0.000 claims description 35
- 238000001514 detection method Methods 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 15
- 230000005540 biological transmission Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical group [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/085—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution lines, e.g. overhead
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Photovoltaic Devices (AREA)
Abstract
The invention discloses a kind of transient state recording type fault detector and its method of supplying power to, belong to transient state recording type fault detector field.The transient state recording type fault detector, including shell, lower cover, CT electricity-fetching module, power supply management circuit, solar-cell panel support；The upper end of shell is arranged in CT electricity-fetching module, and lower cover is fixed on the lower end of shell；The space between shell and lower cover is arranged in power supply management circuit；Solar-cell panel support is arranged on the shell；Power supply management circuit includes control chip, dry cell power supply module, rechargeable battery powered module, super capacitor power supply module, solar powered module；Solar panel is arranged on solar-cell panel support；Solve the problems, such as that CT way to take power is difficult to obtain enough electricity for equipment end use when load current is less than 3A；The effect of the power supply of multi-ensuring transient state recording type fault detector is reached.
Description
Technical field
The present embodiments relate to transient state filtering type fault detector field, in particular to a kind of transient state recording type failure refers to
Show device and its method of supplying power to.
Background technique
With the development of technology, transient state recording type fault detector has been widely used in 35KV and following middle pressure power transmission line
Lu Zhong is monitored and determines to failures various in transmission line of electricity to realize.
Every set transient state recording type fault detector is made of three acquisition units and a set of unit that collects, three acquisition units
According to the corresponding A phase, B phase, C phase being installed on power transmission line of A phase, B phase, C phase, collects unit and be installed on electric pole, collect list
Member establishes communication connection with master station system, is sent to collected data by acquisition unit and collects unit, then by converging
Collection unit sends data to master station system, realizes the telemetering to route electric field and current value and breakdown judge.
Acquisition unit mostly uses greatly CT (mutual inductor) to take electric design at present, that is, utilizes mutual inductance effect from AC power line road
Induction takes electricity.The way to take power, in the transmission line of electricity of 3A-5A or more, can obtain more sufficient electricity for load current
It is used for acquisition unit, but for load current in 3A transmission line of electricity below, the not enough power supply of acquisition is for acquisition unit
It uses.And in practical transmission line of electricity, there is the load current of many special transmission lines of electricity in 3A or less.
Summary of the invention
In order to solve problems in the prior art, the embodiment of the invention provides a kind of transient state recording type fault detector and its
Method of supplying power to.The technical solution is as follows:
In a first aspect, providing a kind of transient state recording type fault detector, including shell, lower cover, CT electricity-fetching module, power supply
Manage circuit, solar-cell panel support；
The upper end of shell is arranged in CT electricity-fetching module, and lower cover is fixed on the lower end of shell；
The space between shell and lower cover is arranged in power supply management circuit；
Solar-cell panel support is arranged on the shell；
Power supply management circuit includes control chip, dry cell power supply module, rechargeable battery powered module, super capacitor power supply
Module, solar powered module, dry cell power supply module, rechargeable battery powered module, super capacitor power supply module, solar energy supply
Electric module is connect with control chip respectively；
Rechargeable battery powered module, super capacitor power supply module are connect with solar powered module respectively；
CT electricity-fetching module is connect with the control chip in power supply management circuit；
Dry cell power supply module includes dry cell and dry cell power supply circuit；
Rechargeable battery powered module includes rechargeable battery, rechargeable battery powered circuit, charged battery voltage detection circuit；
Super capacitor power supply module includes super capacitor, super capacitor charge/discharge；
Solar powered module includes solar panel, solar charging/discharging circuit；
Solar panel is arranged on solar-cell panel support.
Optionally, solar-cell panel support is made of two pieces of support plates；
First support plate is arranged on the shell, and one end of the second support plate and one end of the first support plate are fixed, and first
Angle between support plate and the second support plate is obtuse angle.
Optionally, CT electricity-fetching module includes current transformer, voltage-stablizer, DC-DC power module, full-bridge converter, TVS bis-
Pole pipe and several capacitors, resistance；
Current transformer connect by full-bridge converter with DC-DC power module, DC-DC power module pass through voltage-stablizer and
Control the power end connection of chip；
TVS diode and capacitor, full-bridge converter and DC-DC power source are parallel between current transformer and full-bridge converter
TVS diode and capacitor are parallel between module.
Optionally, in dry cell power supply module, dry cell power supply circuit includes triode, voltage-stablizer, metal-oxide-semiconductor and several
A capacitor and resistance；
The base stage of triode is connect with control chip, and the collector of triode and the grid of metal-oxide-semiconductor connect, the source of metal-oxide-semiconductor
Pole is connect with dry cell, and the drain electrode of metal-oxide-semiconductor is connect with voltage-stablizer, the output end power supply of voltage-stablizer.
Optionally, in rechargeable battery powered module, rechargeable battery powered circuit includes voltage-stablizer, the input terminal of voltage-stablizer with
Rechargeable battery connection, the output end power supply of voltage-stablizer；
Charged battery voltage detection circuit includes first resistor and second resistance, the common end of first resistor and second resistance
Connection control chip, first resistor are connect with rechargeable battery；
Rechargeable battery and solar charging/discharging circuit connection.
Optionally, in super capacitor power supply module, super capacitor charge/discharge include triode, metal-oxide-semiconductor, voltage-stablizer,
Diode；
The base stage of triode connect with control chip, and the grid of the collector of triode and metal-oxide-semiconductor connects, metal-oxide-semiconductor and too
Solar charging/discharging circuit connection in positive energy power supply module；
The source electrode of metal-oxide-semiconductor is connect with super capacitor, and the drain electrode of metal-oxide-semiconductor is connect with voltage-stablizer, the output end power supply of voltage-stablizer.
Optionally, in solar powered module, solar charging/discharging circuit include battery charging management chip, triode,
Metal-oxide-semiconductor；
The base stage of triode is connect with control chip, and the collector of triode and the grid of metal-oxide-semiconductor connect, solar battery
The connection of the collector of plate and triode；
Metal-oxide-semiconductor is connect with charging management chip, the output end power supply of charging management chip, charging management chip and super electricity
Hold charge-discharge circuit, rechargeable battery is separately connected.
Second aspect provides a kind of method of supplying power to of transient state recording type fault detector, is applied to above-mentioned such as first party
Transient state recording type fault detector shown in face, this method comprises:
Whether the supply current that detection CT electricity-fetching module is got is greater than the first current value；
If detecting, the supply current that CT electricity-fetching module is got is greater than the first current value, controls the acquisition of CT electricity-fetching module
The supply current arrived is the power supply of transient state recording type fault detector, and whether the electricity for detecting rechargeable battery is sufficient；If detecting
The not enough power supply of rechargeable battery controls solar powered module then as rechargeable battery charging；
If detecting, supply current that CT electricity-fetching module is got less than the first current value, detects the acquisition of CT electricity-fetching module
To supply current whether be greater than the second current value；
If detecting, the supply current that CT electricity-fetching module is got is greater than the second current value, detects whether super capacitor has
Electricity；If detecting, super capacitor has electricity, and controlling supply current and the super capacitor that CT electricity-fetching module is got is transient state recording
The power supply of type fault detector, and whether the electricity for detecting rechargeable battery is sufficient, if detecting the not enough power supply of rechargeable battery, controls
Solar powered module processed is rechargeable battery charging；If detecting, super capacitor electricity exhausts, and controls the acquisition of CT electricity-fetching module
The supply current and solar powered module arrived is the power supply of transient state recording type fault detector, and the electricity for detecting rechargeable battery is
No abundance controls solar powered module if detecting the not enough power supply of rechargeable battery as rechargeable battery charging；
If detecting, supply current that CT electricity-fetching module is got less than the second current value, detects solar powered module
Whether the supply current got is greater than the first current value；
If detecting, the supply current that solar powered module is got is greater than the first current value, controls solar powered
Module is the power supply of transient state recording type fault detector, and whether the electricity for detecting rechargeable battery is sufficient, if detecting rechargeable battery
Not enough power supply, then control solar powered module for rechargeable battery charging；
If detecting, supply current that solar powered module is got less than the first current value, detects rechargeable battery
Whether voltage is less than predetermined voltage, if the voltage for detecting rechargeable battery controls solar powered mould not less than predetermined voltage
Block and rechargeable battery powered module are the power supply of transient state recording type fault detector；If it is predetermined to detect that the voltage of rechargeable battery is less than
Voltage controls solar powered module and dry cell power supply module then as the power supply of transient state recording type fault detector.
Optionally, the first current value is 5mA, and the second current value is 2mA, predetermined voltage 3.2V.
Optionally, this method further include:
If detecting, the electricity of rechargeable battery is sufficient, controls solar powered module as super capacitor charging.
Technical solution provided in an embodiment of the present invention has the benefit that
By the acquisition unit in transient state recording type fault detector, solar panel, super capacitor, chargeable is set
Battery, dry cell, and power supply management circuit is correspondingly set, solar-cell panel support is fixed on the shell of acquisition unit, it will
Solar panel is fixed on solar-cell panel support, is powered using control chip, solar powered module, super capacitor
Module, rechargeable battery power supply module, dry cell power supply module, when the supply current that CT electricity-fetching module obtains is unsatisfactory for power consumption electricity
When stream requires, solar panel, super capacitor, chargeable electricity are controlled according to the state of other power supply modules by control chip
At least one of pond, dry cell are the power supply of transient state recording type fault detector, solve the CT when load current is less than 3A and take
Electric mode is difficult to obtain the problem of enough electricity are used for equipment end；Multi-ensuring transient state recording type fault detector is reached
Power supply effect.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of transient state recording type fault detector shown according to an exemplary embodiment；
Fig. 2 is a kind of main view of transient state recording type fault detector shown according to an exemplary embodiment；
Fig. 3 is a kind of top view of transient state recording type fault detector shown according to an exemplary embodiment；
Fig. 4 is a kind of left view of transient state recording type fault detector shown according to an exemplary embodiment；
Fig. 5 is a kind of partial sectional view of transient state recording type fault detector shown according to an exemplary embodiment；
Fig. 6 is a kind of structural schematic diagram of solar-cell panel support shown according to an exemplary embodiment；
Fig. 7 is a kind of main view of solar-cell panel support shown according to an exemplary embodiment；
Fig. 8 is a kind of top view of solar-cell panel support shown according to an exemplary embodiment；
Fig. 9 is a kind of structural block diagram of power supply management circuit shown according to an exemplary embodiment；
Figure 10 is the circuit diagram of circuit where control chip shown according to an exemplary embodiment；
Figure 11 is the circuit diagram of CT electricity-fetching module shown according to an exemplary embodiment；
Figure 12 is the circuit diagram of solar powered module shown according to an exemplary embodiment；
Figure 13 is the circuit diagram of rechargeable battery powered module shown according to an exemplary embodiment；
Figure 14 is the circuit diagram of super capacitor power supply module shown according to an exemplary embodiment；
Figure 15 is the circuit diagram of dry cell power supply module shown according to an exemplary embodiment；
Figure 16 is the stream according to a kind of method of supplying power to of transient state recording type fault detector of an exemplary embodiment crucial point
Cheng Tu.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Transient state recording type fault detector involved in the embodiment of the present invention refers in transient state recording type fault detector
Acquisition unit, that is, structure is the structure of acquisition unit in transient state recording type fault detector, and method of supplying power to is also to record for transient state
Acquisition unit in wave mode fault detector.
Such as Fig. 1 to Fig. 5, transient state recording type fault detector includes shell 1, lower cover 2, CT electricity-fetching module, power supply management electricity
Road, solar-cell panel support.
The upper end of shell 1 is arranged in CT electricity-fetching module 5, and the annular region of 1 upper end of shell is arranged in CT electricity-fetching module 5.Outside
The annular region of 1 upper end of shell can be pulled open along the direction S1, and power transmission line can be put into circular holes 4, and CT electricity-fetching module may be implemented
Induction takes electricity from transmission line of electricity.
Optionally, the upper end of shell 1 is arranged in the Current Transmit in CT electricity-fetching module.
Lower cover 2 is fixed on the lower end of shell 1.Optionally, the inside of lower cover 2 and the bottom of shell 1 are provided with matched spiral shell
Line, lower cover 2 can be threadedly secured to the bottom of shell 1.
Power supply management circuit 6 is arranged in the space between shell 2 and lower cover.
Power supply management circuit 6 includes control chip, dry cell power supply module, rechargeable battery powered module, super capacitor confession
Electric module, solar powered module.Dry cell power supply module includes dry cell and dry cell power supply circuit；Rechargeable battery powered mould
Block includes rechargeable battery, rechargeable battery powered circuit, charged battery voltage detection circuit；Super capacitor power supply module includes super
Capacitor, super capacitor charge/discharge；Solar powered module includes solar panel and solar charging/discharging circuit.
CT electricity-fetching module, dry cell power supply module, rechargeable battery powered module, super capacitor power supply module, solar energy supply
Electric module is used to as the power supply of transient state recording type fault detector.The electric current feelings that control chip is used to be obtained according to CT electricity-fetching module
The voltage condition of condition and different power supply modules, control CT electricity-fetching module, rechargeable battery powered module, surpass dry cell power supply module
At least one of grade capacitances to supply power module, solar powered module are powered for transient state recording type fault detector.
It should be noted that the specific location of dry cell, rechargeable battery, super capacitor is not shown in Fig. 5, dry cell fills
The specific location that battery, super capacitor are placed can determine according to actual needs, and the embodiment of the present invention is not construed as limiting this.
Solar panel is arranged on solar-cell panel support.
Solar-cell panel support has two pieces of support plates to constitute, i.e. the first support plate 31 and the second support plate 32.Solar energy
Solar panel is mounted in the first support plate and the second support plate, two pieces of solar panel parallel connections.Optionally, solar panel
It is monocrystalline silicon plate.Optionally, the specified of monolithic solar panel takes electrical power for 0.2W, and sunshine is more sufficient in actual test
In the case where, take electric current up to 50mA (3.3V), sunshine averagely takes electric current up to 20mA (3.3V), sunshine under normal circumstances
It takes electric current smaller in inadequate situation, is less than 20mA (3.3V).
First support plate 31 is arranged on shell 1, as shown in Figure 1；Solar panel is mounted on the first support plate 31
Front is the one side that the first support plate 31 is not contacted with shell 1.
One end of second support plate 32 and the first support plate 31 are fixed, and between the first support plate 31 and the second support plate 32
Angle be obtuse angle.Solar panel is mounted on the upward one side of the second support plate 32.
As shown in fig. 6, being provided with screw through-hole 35 in the first support plate 31, the first support plate 31 passes through 35 He of screw through-hole
Screw is fixed on shell 1.Wiring hole 34 is provided in first support plate 31 and the second support plate 32.
Optionally, perforation, the electric wire on solar panel can be set in the corresponding position of first support plate 31 on shell 1
It can be passed through from wiring hole 34, and pass through the perforation on shell 1 and the circuit connection in shell 1.
In power supply management circuit, control chip 200 and CT electricity-fetching module 210, dry cell power supply module 220, charging electricity
Pond power supply 230, solar powered module 240, super capacitor power supply module 250 are separately connected.
Figure 10 schematically illustrates the schematic diagram that chip place circuit is controlled in power supply management circuit.Optionally, it controls
The model STM8S105K6 of chip U7.
Solar powered module includes solar panel, solar charging/discharging circuit, solar charging/discharging circuit with too
Positive energy solar panel, control chip U7 connection.As shown in figure 12, solar charging/discharging circuit include battery charging management chip U2,
Triode Q16, metal-oxide-semiconductor Q2 and several capacitors and resistance.
The base stage of triode Q16 is connect with control chip U7, and the collector of triode Q16 is connect with the grid of metal-oxide-semiconductor Q2,
Solar panel BT1 is connect with the collector of triode Q16.
Metal-oxide-semiconductor Q2 is connect with charging management chip U2, the output end power supply of charging management chip U2, charging management chip U2
It is separately connected with super capacitor charge/discharge, rechargeable battery.
Wherein, CHARGE_EN pin is connect with CHARGE_EN pin in control chip in solar powered module；The sun
In energy charging module, Solar Power in the Solar Power pin and solar charging/discharging circuit of solar panel BT1
Pin connection, the Chargeable Power pin of charging management chip U2 is for powering.
The specific connection type of capacitor, resistance is referring to Figure 12 in solar powered module, and which is not described herein again.
Optionally, the model TP4067 of charging management chip U2.
Figure 11 schematically illustrates the circuit diagram of CT electricity-fetching module, CT electricity-fetching module include Current Transmit,
Voltage-stablizer U6, DC-DC power module U5, full-bridge converter D10, TVS diode TVS1 and TVS2, several capacitors and resistance.
Current Transmit is connect by full-bridge converter D10 with DC-DC power module U5, and DC-DC power module U5 is logical
It crosses voltage-stablizer U6 and is connect with the power end for controlling chip U7.Wherein, the VCC3V3 pin in CT electricity-fetching module and control chip U7
VCC3V3 pin connection.
TVS1, capacitor C31, full-bridge converter D10 and DC- are parallel between Current Transmit and full-bridge converter D10
TVS2 and capacitor C2, C32, C33, C34, C36 are parallel between DC power module U5.
The specific connection type of capacitor, resistance is referring to Figure 11 in CT electricity-fetching module, and which is not described herein again.
Optionally, the model PI-05V-B4 of DC-DC power module U5.
Optionally, the model S1206 or XC6206 or BL8064CB3TR33 of voltage-stablizer U6.
Optionally, CT electricity-fetching module takes electricity using permalloy material, and transmission line of electricity electric current can be obtained in 5A or more
Supply current not less than 5mA.
Figure 13 schematically illustrates the circuit diagram of rechargeable battery powered module, and rechargeable battery powered module includes filling
Battery BT2, rechargeable battery powered circuit, charged battery voltage detection circuit, rechargeable battery powered circuit and control chip U7
Connection, charged battery voltage detection circuit are connect with control chip U7.
Rechargeable battery powered circuit includes voltage-stablizer U1, diode D8, and the input terminal and rechargeable battery BT2 of voltage-stablizer U1 connects
Connect, the output end of voltage-stablizer U1 with for powering.Specifically, the ChargeablePower pin and rechargeable battery of voltage-stablizer U1
The Chargeable Power pin of BT2 connects.
Charged battery voltage detection circuit includes first resistor R39 and second resistance R40, the electricity of first resistor R39 and second
Hinder R40 common end ADC_BAT_CHARGE connection control chip U7 ADC_BAT_CHARGE pin, first resistor R39 with fill
Battery BT2 connection.
Rechargeable battery BT2 and solar charging/discharging circuit connection, specifically, the Charge Management in solar charging/discharging circuit
The Chargeable Power pin and rechargeable battery of chip U2 draws for the Chargeable Power of rechargeable battery BT2 in module
Foot connection, to realize that solar energy charging battery charges as rechargeable battery.
Optionally, rechargeable battery is lithium battery, and operating temperature range is at -30 DEG C to 60 DEG C.Optionally, the appearance of rechargeable battery
Amount reaches 7Ah.
Figure 14 schematically illustrates the circuit diagram of super capacitor power supply module, and super capacitor power supply module includes super
Grade capacitor C4 and super capacitor charge/discharge.
Super capacitor charge/discharge includes triode Q4, metal-oxide-semiconductor Q5, voltage-stablizer U4, diode D3 and D9 and several
A capacitor and resistance.
The base stage of triode Q4 is connect with control chip U7, and the collector of triode Q4 is connect with the grid of metal-oxide-semiconductor Q5.
Solar charging/discharging circuit connection in metal-oxide-semiconductor Q5 and solar powered module；In solar charging/discharging circuit
In the Chargeable Power pin and super capacitor power supply module of charging management chip U2 in super capacitor charge/discharge
Chargeable Power pin connection, using realize solar energy charging battery be super capacitor C4 charging.
The source electrode of metal-oxide-semiconductor Q5 is connect with super capacitor C4, and the drain electrode of metal-oxide-semiconductor Q5 is connect with the input terminal of voltage-stablizer U4, surely
The output end of depressor U4 is powered.
The specific connection type of capacitor, resistance is referring to Figure 14 in super capacitor charge/discharge, and which is not described herein again.
Optionally, in super capacitor power supply module the model S1206 or XC6206 of voltage-stablizer U4 or
BL8064CB3TR33。
Optionally, super capacitor C4 can be full speed running about 1 hour for transient state recording type fault detector, transient state recording type
The electric current of the device Host average consumption of fault detector is about 5mA (3.3V).
Figure 15 schematically illustrates the circuit diagram of dry cell power supply module, and dry cell power supply module includes dry cell
BT3 and dry cell power supply circuit.
Dry cell power supply circuit include triode Q3, metal-oxide-semiconductor Q1 voltage-stablizer U3, diode D7 and several capacitors and
Resistance.The base stage of triode Q3 with control chip U7 connect, i.e. DRY_BAT_EN pin after triode Q3 connection resistance R6 and
Control the DRY_BAT_EN pin connection of chip U7.
The collector of triode Q3 is connect with the grid of metal-oxide-semiconductor Q1, and the source electrode of metal-oxide-semiconductor Q1 is connect with dry cell BT3, MOS
The drain electrode of pipe Q1 is connect with the input terminal of voltage-stablizer U3, the output end power supply of voltage-stablizer U3.
The specific connection type of capacitor, resistance is referring to Figure 15 in dry cell power supply circuit, and which is not described herein again.
Optionally, the model S1206 or XC6206 or BL8064CB3TR33 of voltage-stablizer U3.
Optionally, dry cell is spare dry cell, is disposable battery, battery capacity is in 14Ah.
It should be noted that the identical any two pin of symbol connects in Figure 10 into circuit diagram shown in figure 15
It connects.
In view of rechargeable battery has the limitation of service life, dry cell is spare disposable battery, priority of powering are as follows:
CT takes electricity > CT to take electricity+super capacitor power supply > CT that electricity+solar powered > solar powered > solar powered+rechargeable battery is taken to supply
Electricity > solar powered+dry cell power supply.
Figure 16 is please referred to, it illustrates the suppliers of electricity of transient state recording type fault detector provided by one embodiment of the present invention
The flow chart of method.The method of supplying power to of the transient state recording type fault detector is suitable for such as Fig. 1 to transient state recording type shown in figure 15
In fault detector.As shown in Fig. 16, the method for supplying power to of the transient state recording type fault detector be may comprise steps of:
Step 1, whether the supply current that detection CT electricity-fetching module is got is greater than the first current value.
Optionally, the first current value is 5mA.
Whether the supply current that control chip detection CT electricity-fetching module is got is greater than the first current value.
If detecting, the supply current that CT electricity-fetching module is got is greater than the first current value, uses CT power-taking mode, i.e.,
Execute step 2.
If detecting, supply current that CT electricity-fetching module is got less than the first current value, thens follow the steps 3.
Step 2, the supply current that control CT electricity-fetching module is got is the power supply of transient state recording type fault detector, and is detected
Whether the electricity of rechargeable battery is sufficient.
When the supply current that CT electricity-fetching module is got is greater than the first current value, control chip controls CT electricity-fetching module is obtained
The supply current got is the power supply of transient state recording type fault detector, and detects whether rechargeable battery is full power state.
If detecting the not enough power supply of rechargeable battery, i.e., rechargeable battery is not full power state, then controls the chip controls sun
Energy power supply module is rechargeable battery charging；If detecting, the electricity of rechargeable battery is sufficient, i.e., rechargeable battery is full power state, then not
It charges to rechargeable battery, controls chip controls solar powered module as super capacitor charging.
Optionally, the extra electricity that CT electricity-fetching module obtains is also used for as super capacitor charging.
Step 3, whether the supply current that detection CT electricity-fetching module is got is greater than the second current value.
Optionally, the second current value is 2mA.
When the supply current that CT electricity-fetching module is got is less than the first current value, control chip detection CT electricity-fetching module is obtained
Whether the supply current got is greater than the second current value.
If control chip detects that the supply current that CT electricity-fetching module is got is greater than the second current value, 4 are thened follow the steps.
If control chip detects that supply current that CT electricity-fetching module is got less than the second current value, thens follow the steps 7.
Second current value is less than the first current value.
Step 4, whether detection super capacitor has electricity.
When the supply current that CT electricity-fetching module is got is less than the first current value, and the power supply electricity that CT electricity-fetching module is got
When stream is greater than the second current value, whether control chip detection super capacitor has electricity.
If control chip detects that super capacitor has electricity, electricity+super capacitor powering mode is taken using CT, executes step 5.
If control chip detects that super capacitor electricity exhausts, electricity+solar powered mode is taken using CT, executes step
6。
Step 5, the supply current and super capacitor that control CT electricity-fetching module is got are transient state recording type fault detector
Power supply, and whether detect rechargeable battery sufficient.
When the supply current that CT electricity-fetching module is got is greater than the second current value, when super capacitor has electricity, control chip control
Supply current and super capacitor that CT electricity-fetching module processed is got while being the power supply of transient state recording type fault detector.
If detecting the not enough power supply of rechargeable battery, i.e., rechargeable battery is not full power state, then controls the chip controls sun
Energy power supply module is rechargeable battery charging；If detecting, the electricity of rechargeable battery is sufficient, i.e., rechargeable battery is full power state, then not
It charges to rechargeable battery.
Step 6, the supply current and solar powered module that control CT electricity-fetching module is got are transient state recording type failure
Indicator power supply, and whether the electricity for detecting solar battery is sufficient.
When the supply current that CT electricity-fetching module is got is greater than the second current value, when super capacitor electricity exhausts, control core
Piece control controls the supply current and solar powered module that CT electricity-fetching module is got while being transient state recording type indicating fault
Device power supply.
If detecting the not enough power supply of rechargeable battery, i.e., rechargeable battery is not full power state, then controls the chip controls sun
Energy power supply module is rechargeable battery charging；If detecting, the electricity of rechargeable battery is sufficient, i.e., rechargeable battery is full power state, then not
It charges to rechargeable battery.
It should be noted that if the supply current that control chip detects that CT takes electricity to get is obtained with solar powered module
The sum of supply current got is less than the first current value, then direct jump procedure 11.
Step 7, whether the supply current that detection solar powered module is got is greater than the first current value.
When the supply current that CT electricity-fetching module is got is less than the second current value, control chip detects solar powered mould
Whether the supply current that block is got is greater than the first current value.
If control chip detects that the supply current that solar powered module is got is greater than the first current value, using too
Positive energy powering mode, executes step 8.
If control chip detects that supply current that solar powered module is got less than the first current value, executes step
Rapid 9.
Step 8, control solar powered module is the power supply of transient state recording type fault detector, and detects the electricity of rechargeable battery
Whether amount is sufficient.
When the supply current that CT electricity-fetching module is got is less than the second current value, and the confession that solar powered module is got
When electric current is greater than the first current value, control chip controls control solar powered module is the confession of transient state recording type fault detector
Whether the electricity of electricity, control chip detection rechargeable battery is sufficient.
If detecting the not enough power supply of rechargeable battery, i.e., rechargeable battery is not full power state, then controls the chip controls sun
The extra electricity that energy power supply module is got is rechargeable battery charging；If detecting, the electricity of rechargeable battery is sufficient, i.e. charging electricity
Pond is full power state, then does not charge to rechargeable battery, and the extra electricity that control solar powered module is got is super capacitor
Charging.
Optionally, the electricity that CT electricity-fetching module is got is used to charge for super capacitor.
Step 9, whether the voltage for detecting rechargeable battery is less than predetermined voltage.
When the supply current that CT electricity-fetching module is got is less than the second current value, and the confession that solar powered module is got
When electric current is less than the first current value, whether the voltage of control chip detection rechargeable battery is less than predetermined voltage.
Optionally, predetermined voltage 3.2V.
If detecting, the voltage of rechargeable battery not less than predetermined voltage, uses solar powered+rechargeable battery powered mould
Block formula executes step 10.
If detecting, the voltage of rechargeable battery is less than predetermined voltage, uses solar powered+dry cell power supply modular,
Execute step 11.
Step 10, control control solar powered module and rechargeable battery powered module are transient state recording type fault detector
Power supply.
When the power supply that the supply current that CT electricity-fetching module is got is less than the second current value, and solar powered module is got
Less than the first current value, and when the voltage of rechargeable battery is not less than predetermined voltage, control chip controls control solar energy supplies electric current
Electric module and rechargeable battery powered module are the power supply of transient state recording type fault detector.
Alternatively, the supply current that CT electricity-fetching module is got is greater than the second current value and less than the first current value, CT takes electricity
When the sum of supply current that the supply current and solar powered module got is got is less than the first current value, chip is controlled
Control control solar powered module and rechargeable battery powered module are the power supply of transient state recording type fault detector.
The electricity that chip controls CT electricity-fetching module obtains is controlled as super capacitor charging.
Step 11, solar powered module and dry cell power supply module are controlled as the power supply of transient state recording type fault detector.
When the electric current that the supply current that CT electricity-fetching module is got is less than the second current value, and solar powered module is got
Less than the first current value, when the voltage of rechargeable battery is less than predetermined voltage, control chip controls solar powered module and dry electricity
Pond power supply module is the power supply of transient state recording type fault detector.
Optionally, the electricity that control chip controls CT electricity-fetching module obtains is super capacitor charging.
In conclusion solar-electricity is arranged by the acquisition unit in transient state recording type fault detector in the embodiment of the present invention
Pond plate, super capacitor, rechargeable battery, dry cell, and power supply management circuit is correspondingly set, it is fixed on the shell of acquisition unit
Solar panel is fixed on solar-cell panel support by solar-cell panel support, is supplied using control chip, solar energy
Electric module, super capacitor power supply module, rechargeable battery power supply module, dry cell power supply module are obtained when CT electricity-fetching module
When supply current is unsatisfactory for static current of lcd requirement, solar battery is controlled according to the state of other power supply modules by control chip
At least one of plate, super capacitor, rechargeable battery, dry cell are the power supply of transient state recording type fault detector, are solved
CT way to take power is difficult to obtain the problem of enough electricity are used for equipment end when load current is less than 3A；Multi-ensuring is reached
The effect of the power supply of transient state recording type fault detector.
It should be understood that the serial number of the above embodiments of the invention is only for description, do not represent the advantages or disadvantages of the embodiments.
Those of ordinary skill in the art will appreciate that realizing that all or part of the steps of above-described embodiment can pass through hardware
It completes, relevant hardware can also be instructed to complete by program, the program can store in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only memory, disk or CD etc..
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of transient state recording type fault detector, which is characterized in that including shell, lower cover, CT electricity-fetching module, power supply management electricity
Road, solar-cell panel support；
The upper end of the shell is arranged in the CT electricity-fetching module, and the lower cover is fixed on the lower end of the shell；
The space between the shell and the lower cover is arranged in the power supply management circuit；
The solar-cell panel support setting is on the housing；
The power supply management circuit includes control chip, dry cell power supply module, rechargeable battery powered module, super capacitor power supply
Module, solar powered module, the dry cell power supply module, the rechargeable battery powered module, super capacitor power supply
Module, the solar powered module are connect with the control chip respectively；
The rechargeable battery powered module, the super capacitor power supply module are connect with the solar powered module respectively；
The CT electricity-fetching module is connect with the control chip in the power supply management circuit；
The dry cell power supply module includes dry cell and dry cell power supply circuit；
The rechargeable battery powered module includes rechargeable battery, rechargeable battery powered circuit, charged battery voltage detection circuit；
The super capacitor power supply module includes super capacitor, super capacitor charge/discharge；
The solar powered module includes solar panel, solar charging/discharging circuit；
The solar panel is arranged on the solar-cell panel support.
2. transient state recording type fault detector according to claim 1, which is characterized in that the solar-cell panel support
It is made of two pieces of support plates；
First support plate is arranged on the housing, and one end of the second support plate and one end of the first support plate are fixed, and first
Angle between support plate and the second support plate is obtuse angle.
3. transient state recording type fault detector according to claim 1, which is characterized in that the CT electricity-fetching module includes electricity
Current transformer, voltage-stablizer, DC-DC power module, full-bridge converter, TVS diode and several capacitors, resistance；
The current transformer is connect by the full-bridge converter with the DC-DC power module, the DC-DC power module
It is connect by the voltage-stablizer with the power end of the control chip；
Be parallel with TVS diode and capacitor between the current transformer and the full-bridge converter, the full-bridge converter with
TVS diode and capacitor are parallel between the DC-DC power module.
4. transient state recording type fault detector according to claim 1, which is characterized in that in the dry cell power supply module
In, the dry cell power supply circuit includes triode, voltage-stablizer, metal-oxide-semiconductor and several capacitors and resistance；
The base stage of the triode is connect with the control chip, and the grid of the collector of the triode and the metal-oxide-semiconductor connects
It connects, the source electrode of the metal-oxide-semiconductor is connect with the dry cell, and the drain electrode of the metal-oxide-semiconductor is connect with the voltage-stablizer, the voltage-stablizer
Output end power supply.
5. transient state recording type fault detector according to claim 1, which is characterized in that in the rechargeable battery powered mould
Block, the rechargeable battery powered circuit includes voltage-stablizer, and the input terminal of the voltage-stablizer is connect with the rechargeable battery, described steady
The output end of depressor is powered；
The charged battery voltage detection circuit includes first resistor and second resistance, the common end of first resistor and second resistance
The control chip is connected, the first resistor is connect with the rechargeable battery；
The rechargeable battery and the solar charging/discharging circuit connection.
6. transient state recording type fault detector according to claim 1, which is characterized in that in super capacitor power supply mould
Block, the super capacitor charge/discharge include triode, metal-oxide-semiconductor, voltage-stablizer, diode；
The base stage of the triode is connect with the control chip, and the grid of the collector of the triode and the metal-oxide-semiconductor connects
It connects, the solar charging/discharging circuit connection in the metal-oxide-semiconductor and the solar powered module；
The source electrode of the metal-oxide-semiconductor is connect with the super capacitor, and the drain electrode of the metal-oxide-semiconductor is connect with the voltage-stablizer, described steady
The output end of depressor is powered.
7. transient state recording type fault detector according to claim 1, which is characterized in that in the solar powered mould
Block, the solar charging/discharging circuit include battery charging management chip, triode, metal-oxide-semiconductor；
The base stage of the triode is connect with the control chip, and the grid of the collector of the triode and the metal-oxide-semiconductor connects
It connects, the solar panel is connect with the collector of the triode；
The metal-oxide-semiconductor is connect with the charging management chip, the output end power supply of the charging management chip, the Charge Management
Chip is separately connected with super capacitor charge/discharge, rechargeable battery.
8. a kind of method of supplying power to of transient state recording type fault detector, which is characterized in that be applied to any institute of claim 1 to 7
In the transient state recording type fault detector stated, the method for supplying power to includes:
Whether the supply current that detection CT electricity-fetching module is got is greater than the first current value；
If detecting, the supply current that CT electricity-fetching module is got is greater than the first current value, controls what CT electricity-fetching module was got
Supply current is the power supply of transient state recording type fault detector, and whether the electricity for detecting rechargeable battery is sufficient；If detecting charging
The not enough power supply of battery controls solar powered module then as rechargeable battery charging；
If detecting, supply current that CT electricity-fetching module is got less than the first current value, detects what CT electricity-fetching module was got
Whether supply current is greater than the second current value；
If detecting, the supply current that CT electricity-fetching module is got is greater than the second current value, detects whether super capacitor has electricity；
If detecting, super capacitor has electricity, controls supply current and the super capacitor that CT electricity-fetching module is got as the event of transient state recording type
Hinder indicator power supply, and whether the electricity for detecting rechargeable battery is sufficient, if detecting the not enough power supply of rechargeable battery, controls too
Positive energy power supply module is rechargeable battery charging；If detecting, super capacitor electricity exhausts, and controls what CT electricity-fetching module was got
Supply current and solar powered module are the power supply of transient state recording type fault detector, and whether the electricity for detecting rechargeable battery fills
Foot controls solar powered module if detecting the not enough power supply of rechargeable battery as rechargeable battery charging；
If detecting, supply current that CT electricity-fetching module is got less than the second current value, detects solar powered module acquisition
To supply current whether be greater than the first current value；
If detecting, the supply current that solar powered module is got is greater than the first current value, controls solar powered module
It powers for transient state recording type fault detector, and whether the electricity for detecting rechargeable battery is sufficient, if detecting the electricity of rechargeable battery
Amount is insufficient, then controls solar powered module as rechargeable battery charging；
If detecting, supply current that solar powered module is got less than the first current value, detects the voltage of rechargeable battery
Whether be less than predetermined voltage, if detecting the voltage of rechargeable battery not less than predetermined voltage, control solar powered module and
Rechargeable battery powered module is the power supply of transient state recording type fault detector；If detecting, the voltage of rechargeable battery is less than predetermined electricity
Pressure controls solar powered module and dry cell power supply module then as the power supply of transient state recording type fault detector.
9. according to the method described in claim 8, second current value is it is characterized in that, first current value is 5mA
2mA, the predetermined voltage are 3.2V.
10. according to the method described in claim 8, it is characterized in that, the method also includes:
If detecting, the electricity of rechargeable battery is sufficient, controls solar powered module as super capacitor charging.
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| CN109546730B (en) | 2024-04-23 |
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