CN204179731U - Support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting - Google Patents
Support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting Download PDFInfo
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- CN204179731U CN204179731U CN201420738089.7U CN201420738089U CN204179731U CN 204179731 U CN204179731 U CN 204179731U CN 201420738089 U CN201420738089 U CN 201420738089U CN 204179731 U CN204179731 U CN 204179731U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 36
- 230000005611 electricity Effects 0.000 title claims abstract description 27
- 230000001939 inductive effect Effects 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 238000002955 isolation Methods 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 9
- 229910018095 Ni-MH Inorganic materials 0.000 claims description 5
- 229910018477 Ni—MH Inorganic materials 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 5
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- 230000006698 induction Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 3
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- 230000005684 electric field Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000005286 illumination Methods 0.000 description 1
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- 230000003446 memory effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Abstract
The utility model discloses a kind of distribution line on-line monitoring acquisition terminal supporting circuit automatic electricity getting, for coordinating the ruuning situation to monitor distribution line with line-failure indicator, it sets up high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprise: current-inducing power supply, the power conversion on distribution line is powered to carry out isolation to circuit secondary side; Charging circuit, is stored this energy and is converted to described operating voltage; And the switching circuit be connected between described current-inducing power supply and charging circuit, directly charge to described charging circuit for controlling current-inducing power supply.Current-inducing power supply reduces cost, avoids ferro resonance, greatly improves the fail safe of electrical network.
Description
Technical field
The utility model embodiment relates generally to distribution distribution technique, particularly relates to a kind of distribution line on-line monitoring acquisition terminal supporting circuit automatic electricity getting.
Background technology
Distribution line long transmission distance, branch line are many, and how in network structure, its trouble shoot is very difficult.Distribution line on-line monitoring acquisition terminal matches with intelligent line fault detector, can the normal operation of Real-Time Monitoring circuit and fault generating process, detects and indicates short circuit and earth fault.This will to understand the operation conditions of circuit in real time to operation maintenance personnel for distribution line, location, maintenance etc. after fault occurs bring great convenience.
Because the distribution line multidigit of overhead line type is in field, the power supply of distribution line on-line monitoring terminal will run into great difficulty.Current common way uses in parallel with stand-by power supply for photovoltaic cell.By photovoltaic cell be reserve battery charge, photovoltaic cell is in parallel with reserve battery powers for distribution line on-line monitoring terminal afterwards.Owing to need consider the rainy weather of many days, reserve battery need support the operation of more than 10 days of distribution line on-line monitoring terminal.
Because the power of photovoltaic cell is very large by weather effect, its output stage is unstable, thus effectively cannot control the charging current to reserve battery.Therefore reserve battery many employings lead-acid battery and Ni-MH battery, and the memory effect of these two kinds of reserve batteries is all more serious.Irregular charging current will affect the useful life of these two kinds of batteries greatly.Within this external one day photovoltaic cell nearly half time due to illumination not enough and energy cannot be provided for reserve battery, reserve battery certainly will be in and fill while the state of putting, and this also will have impact on the useful life of reserve battery to a certain extent.
In addition, after the tele-release of reserve battery is complete, the output of photovoltaic cell can only be relied at short notice to be the energy supply of distribution line on-line monitoring acquisition terminal, and due to the power supply instability of photovoltaic cell, also just cannot to make distribution line on-line monitoring acquisition terminal steady operation.
Power supply is provided in order to give distribution line on-line monitoring terminal, voltage transformer is utilized to draw the scheme of power supply in addition, but the high expensive of this one side high pressure CT, a large amount of uses of high pressure CT may cause ferro resonance on the other hand, thus bring larger potential safety hazard.
Utility model content
The utility model solves aforementioned techniques defect, a kind of distribution line on-line monitoring acquisition terminal supporting circuit automatic electricity getting is provided, for coordinating the ruuning situation to monitor distribution line with line-failure indicator, its improvement is to set up high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprise: current-inducing power supply, the power conversion on distribution line is powered to carry out isolation to circuit secondary side; Charging circuit, is stored this energy and is converted to described operating voltage; And the switching circuit be connected between described current-inducing power supply and charging circuit, directly charge to described charging circuit for controlling current-inducing power supply.
In one embodiment, described charging circuit comprises: reserve battery, provides stable operating voltage when distribution line load long-time power output deficiency; Super capacitor, for carrying out buffer memory to the energy from current-inducing power supply at short notice, with the output voltage of stabling current induction power supply and power, and stablize the charging current of described reserve battery and the operating voltage of described distribution line on-line monitoring acquisition terminal; And charge management circuit, connect between described reserve battery and super capacitor and select with the type according to reserve battery corresponding recharge logic to extend the life cycle of described reserve battery.
In one embodiment, described recharge logic is in a predetermined period, detect described reserve battery service condition and current capacity, thus stablizes its output current.
In one embodiment, described current-inducing power supply comprises: the current transformer (CT) for getting energy connecting distribution line; Connect the full bridge rectifier of described CT; And connecting the exciting circuit of output of described full bridge rectifier, the secondary side picked out for preventing described CT is opened a way.
In one embodiment, described switching circuit comprises the paralleling switch diode D1 be connected between current-inducing power supply and reserve battery, and D2 prevents described reserve battery to charge to super capacitor, or prevents current-inducing power supply to charge directly to reserve battery.
In one embodiment, described reserve battery selects Ni-MH battery or lead-acid battery.
In another embodiment, a kind of distribution line on-line monitoring acquisition terminal supporting circuit automatic electricity getting, for coordinating the ruuning situation to monitor three-phase distribution circuit with line-failure indicator, its Curve guide impeller is to comprise: the power supply connecting distribution line, it has high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprising: current-inducing power supply, the power conversion on distribution line is powered to carry out isolation to circuit secondary side; Charging circuit, is stored this energy and is converted to described operating voltage; And the switching circuit be connected between described current-inducing power supply and charging circuit, directly charge to described charging circuit for controlling current-inducing power supply; And communication ends, for wirelessly communicating to connect with described line-failure indicator and far-end main station system respectively.
In one embodiment, described line-failure indicator comprises A, B, C phase line-failure indicator be connected in respectively in A, B, C three-phase power line, connects described communication ends by infrared mode.
In one embodiment, described communication ends connects far-end main station system by WIFI or wired ethernet mode.
In one embodiment, described charging circuit comprises: reserve battery, provides stable operating voltage when distribution line load long-time power output deficiency; Super capacitor, for carrying out buffer memory to the energy from current-inducing power supply at short notice, with the output voltage of stabling current induction power supply and power, and stablize the charging current of described reserve battery and the operating voltage of described distribution line on-line monitoring acquisition terminal; And charge management circuit, connect between described reserve battery and super capacitor and select with the type according to reserve battery corresponding recharge logic to extend the life cycle of described reserve battery.
In one embodiment, described recharge logic is in a predetermined period, detect described reserve battery service condition and current capacity, thus stablizes its output current.
In one embodiment, described current-inducing power supply comprises: the current transformer (CT) for getting energy connecting distribution line; Connect the full bridge rectifier of described CT; And connecting the exciting circuit of output of described full bridge rectifier, the secondary side picked out for preventing described CT is opened a way.
In one embodiment, described switching circuit comprises the paralleling switch diode D1 be connected between current-inducing power supply and reserve battery, and D2 prevents described reserve battery to charge to super capacitor, or prevents current-inducing power supply to charge directly to reserve battery.
In one embodiment, described reserve battery selects Ni-MH battery or lead-acid battery.
The utility model technique effect is apparent, and compared with high pressure P T energy supply, current-inducing power supply reduces cost, avoids ferro resonance, greatly improves the fail safe of electrical network.Compared with photovoltaic cell energy supply, the confession stabilizability of current-inducing power supply increases greatly, and due to energy supply threshold electric current less, the effective power-on time therefore within a day also increases substantially.With under the cooperation of super capacitor, the line load fluctuation of part short time can be offset, further increase the stability of energy supply, meet the energy supply demand of distribution line on-line monitoring terminal, following advantage can be brought thus: more intactly can realize the charge and discharge process to reserve battery, thus add the useful life of reserve battery.The capacity of required reserve battery also decreases, thus also reduces the cost of whole device.After reserve battery is discharged, current-inducing power supply still can provide stable electric energy for distribution line on-line monitoring terminal.
Accompanying drawing explanation
Fig. 1 is the structure function block diagram of the distribution line on-line monitoring acquisition terminal supporting circuit automatic electricity getting.
Embodiment
With reference to Fig. 1, support that the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting has set up a high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprising: current-inducing power supply 1, the power conversion on distribution line is powered to carry out isolation to circuit secondary side; Charging circuit, is stored this energy and is converted to described operating voltage; And the switching circuit be connected between described current-inducing power supply 1 and charging circuit, directly charge to described charging circuit for controlling current-inducing power supply.Support that the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting coordinates with the intelligent line fault detector on distribution line, realize the operation conditions to distribution line, fault generating process carries out Real-Time Monitoring, can detect and indicate the fault such as short circuit, ground connection.Meanwhile, by wireless or wire message way by the information real-time report that monitors to main station system, the state estimation run for circuit, the repairing of fault provide foundation, improve power supply quality.
In one embodiment, described charging circuit comprises: reserve battery 2, provides stable operating voltage when distribution line load long-time power output deficiency; Super capacitor 3, for carrying out buffer memory to the energy from current-inducing power supply at short notice, with the output voltage of stabling current induction power supply and power, and stablize the charging current of described reserve battery and the operating voltage of described distribution line on-line monitoring acquisition terminal; And charge management circuit 4, connect between described reserve battery and super capacitor and select with the type according to reserve battery corresponding recharge logic to extend the life cycle of described reserve battery.
In one embodiment, described recharge logic is in a predetermined period, detect described reserve battery service condition and current capacity, thus stablizes its output current.
In one embodiment, described current-inducing power supply comprises: the CT for getting energy connecting distribution line; Connect the full bridge rectifier of described CT; And connecting the exciting circuit of output of described full bridge rectifier, the secondary side picked out for preventing described CT is opened a way.
In one embodiment, described switching circuit comprises the paralleling switch diode D1 be connected between current-inducing power supply and reserve battery, and D2 prevents described reserve battery to charge to super capacitor, or prevents current-inducing power supply to charge directly to reserve battery.
In one embodiment, described reserve battery selects Ni-MH battery or lead-acid battery.
In another embodiment, a kind of distribution line on-line monitoring acquisition terminal supporting circuit automatic electricity getting, for coordinating the ruuning situation to monitor three-phase distribution circuit with line-failure indicator, its Curve guide impeller is to comprise: the power supply connecting distribution line, it has high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprising: current-inducing power supply, the power conversion on distribution line is powered to carry out isolation to circuit secondary side; Charging circuit, is stored this energy and is converted to described operating voltage; And the switching circuit be connected between described current-inducing power supply and charging circuit, directly charge to described charging circuit for controlling current-inducing power supply; And communication ends, for wirelessly communicating to connect with described line-failure indicator and far-end main station system respectively.
In one embodiment, described line-failure indicator comprises A, B, C phase line-failure indicator be connected in respectively in A, B, C three-phase power line, described communication ends is connected by infrared mode, by short-distance wireless, wheel inquiry is carried out to three-phase intelligent line-failure indicator, obtain the real-time current of three-phase line, detection line to earth electric field, judge the malfunctions such as the phase fault of circuit, single-phase earthing.
In one embodiment, described communication ends connects far-end main station system by WIFI or wired ethernet mode, is connected with main station system by GPRS wireless public network, and by the real-time current of three-phase line, to earth electric field timing report main station system.And by malfunction real-time report such as the phase fault of circuit, single-phase earthings to main website.To improve the response speed of fault, improve power supply quality.
Claims (10)
1. support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting, for coordinating the ruuning situation to monitor distribution line with line-failure indicator, its Curve guide impeller is to set up high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprising:
Current-inducing power supply, powers the power conversion on distribution line to carry out isolation to circuit secondary side;
Charging circuit, is stored this energy and is converted to described operating voltage; And
Being connected to the switching circuit between described current-inducing power supply and charging circuit, directly charging to described charging circuit for controlling current-inducing power supply.
2. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 1, its Curve guide impeller is, described charging circuit comprises:
Reserve battery, provides stable operating voltage when distribution line load long-time power output deficiency;
Super capacitor, for carrying out buffer memory to the energy from current-inducing power supply at short notice, with the output voltage of stabling current induction power supply and power, and stablize the charging current of described reserve battery and the operating voltage of described distribution line on-line monitoring acquisition terminal; And
Charge management circuit, connects between described reserve battery and super capacitor and selects with the type according to reserve battery corresponding recharge logic to extend the life cycle of described reserve battery.
3. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 2, its Curve guide impeller is, described recharge logic is in a predetermined period, detect described reserve battery service condition and current capacity, thus stablizes its output current.
4. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 1, its Curve guide impeller is, described current-inducing power supply comprises: the current transformer (CT) for getting energy connecting distribution line; Connect the full bridge rectifier of described current transformer; And connecting the exciting circuit of output of described full bridge rectifier, the secondary side picked out for preventing described current transformer is opened a way.
5. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 2, its Curve guide impeller is, described switching circuit comprises the paralleling switch diode D1 be connected between current-inducing power supply and reserve battery, D2, prevent described reserve battery to charge to super capacitor, or prevent current-inducing power supply to charge directly to reserve battery.
6. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 2, its Curve guide impeller is: described reserve battery selects Ni-MH battery or lead-acid battery.
7. support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting for one kind, for coordinating the ruuning situation to monitor three-phase distribution circuit with line-failure indicator, its Curve guide impeller is to comprise: the power supply connecting distribution line, it has high-tension line automatic electricity getting part, for obtaining operating voltage from distribution line, comprising:
Current-inducing power supply, powers the power conversion on distribution line to carry out isolation to circuit secondary side; Charging circuit, is stored this energy and is converted to described operating voltage; And
Being connected to the switching circuit between described current-inducing power supply and charging circuit, directly charging to described charging circuit for controlling current-inducing power supply; And
Communication ends, for wirelessly communicating to connect with described line-failure indicator and far-end main station system respectively.
8. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 7, its Curve guide impeller is: described line-failure indicator comprises A, B, C phase line-failure indicator be connected in respectively in A, B, C three-phase power line, connects described communication ends by infrared mode.
9. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 7, its Curve guide impeller is: described communication ends connects far-end main station system by WIFI or wired ethernet mode.
10. the distribution line on-line monitoring acquisition terminal of support circuit automatic electricity getting according to claim 7, its Curve guide impeller is, described charging circuit comprises:
Reserve battery, provides stable operating voltage when distribution line load long-time power output deficiency;
Super capacitor, for carrying out buffer memory to the energy from current-inducing power supply at short notice, with the output voltage of stabling current induction power supply and power, and stablize the charging current of described reserve battery and the operating voltage of described distribution line on-line monitoring acquisition terminal; And
Charge management circuit, connects between described reserve battery and super capacitor and selects with the type according to reserve battery corresponding recharge logic to extend the life cycle of described reserve battery.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420738089.7U CN204179731U (en) | 2014-11-28 | 2014-11-28 | Support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting |
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| CN201420738089.7U CN204179731U (en) | 2014-11-28 | 2014-11-28 | Support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377782A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Distribution line online monitoring and collecting terminal supporting automatic line electricity getting |
| CN104734049A (en) * | 2015-03-25 | 2015-06-24 | 河南晶能电子科技有限公司 | Electrical distribution box temperature automatic heat dissipation controller |
| CN104898757A (en) * | 2015-03-16 | 2015-09-09 | 国家电网公司 | Power output control method of electric power acquisition system |
-
2014
- 2014-11-28 CN CN201420738089.7U patent/CN204179731U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377782A (en) * | 2014-11-28 | 2015-02-25 | 国家电网公司 | Distribution line online monitoring and collecting terminal supporting automatic line electricity getting |
| CN104377782B (en) * | 2014-11-28 | 2016-10-26 | 国家电网公司 | Support the distribution line on-line monitoring acquisition terminal of circuit automatic electricity getting |
| CN104898757A (en) * | 2015-03-16 | 2015-09-09 | 国家电网公司 | Power output control method of electric power acquisition system |
| CN104734049A (en) * | 2015-03-25 | 2015-06-24 | 河南晶能电子科技有限公司 | Electrical distribution box temperature automatic heat dissipation controller |
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