CN203445632U - Novel power supply energy storage apparatus on power transmission line - Google Patents
Novel power supply energy storage apparatus on power transmission line Download PDFInfo
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- CN203445632U CN203445632U CN201320257459.0U CN201320257459U CN203445632U CN 203445632 U CN203445632 U CN 203445632U CN 201320257459 U CN201320257459 U CN 201320257459U CN 203445632 U CN203445632 U CN 203445632U
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- power supply
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- transmission line
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Abstract
A novel power supply energy storage apparatus on a power transmission line is provided. The apparatus is disposed on a lead of the power transmission line, and is composed of a high-performance lithium battery, a super energy storage capacitor and a switching control circuit, wherein the high-performance lithium battery, a DC-DC converter and the super energy storage capacitor serve as three different energy supply method and are controlled by the switching control circuit to supply power for a monitoring terminal, wherein the high-performance lithium battery and the super capacitor serve as fault-moment energy storage elements. The apparatus is mainly used for supply electric energy for a monitoring terminal of a travelling wave fault location system to complete functions such travelling wave acquisition, digital signal processing and data transmission in fault moments. The power supply energy storage developed according to the method has advantages such as long lifespan, good stability and small size, has been successfully applied to electric power systems, and can satisfy demands of supplying power to the monitoring terminal for stable operation for a period time to record fault information in the case of power failure of a line in fault moments very well.
Description
Affiliated technical field
The utility model relates to electronic device field, relate in particular to a kind of for transmission line travelling wave fault location system, be mainly used for solving transmission line malfunction constantly the power supply of transmission line travelling wave fault location system monitoring terminal supply with problem.
Background technology
Ultra-high-tension power transmission line fault forms larger threat to the safe operation of whole electric power system, and Fault-Locating Test has very important meaning for safe and stable operation and the economic benefit of electric power system accurately.The Fault-Locating Test positioning precision of row ripple principle is high, has the feature that transition resistance, line construction are asymmetric, circuit corridor landform changes, the factors such as mapping fault of the mutual device of voltage and current affect that is not subject to.For transmission line travelling wave fault location system, at circuit, hinder for some reason and have a power failure constantly, it is intelligent grid to its basic demand that stable power supply is supplied with.
For the mode of transmission line travelling wave fault location system power supply, at present conventionally utilize solar energy, laser energy supply, induction power taking etc., wherein the most promising supply power mode is directly from transmission line, to respond to the mode of power taking.The phenomenon that often causes line tripping and line outage during due to transmission line travelling wave fault, therefore in order to guarantee under power-off condition, system must the one of short duration period of reliably working be used for record trouble information, more general method is that power supply is all with energy storage battery, the thinking of its design is that induction energy fetching coil will be stored in storage battery after energy acquisition on feeder line, the energy that energy storage battery stores is through voltage conversion circuit, convert the required electric pressure of automatization terminal equipment to, for automatization terminal provides energy.When induction energy fetching coil loses energy supply ability because of line outage, by the energy of battery stores, for load energy, to be supplied with, the method can provide larger instantaneous electric energy for equipment, and wherein storage battery mainly plays voltage stabilizing and energy storage in device.The method effectively guaranteed that traveling wave fault is decided to be monitoring terminal equipment when ultra-high-tension power transmission line fault and still can normally move, for the fault location of transmission line provides power supply assurance.
At present mostly batteries to store energy power supply is that adopting transformer power taking from ultra-high-tension power transmission line is charge in batteries, exists management of charging and discharging complicated, the problem that power consumption is large, and it is high to overcome transformer cost, and volume is large, the strong and not high problem of fail safe of electromagnetic interference.In addition, storage battery itself is short as energy-storage travelling wave tube average life, discharge and recharge the shortcomings such as number of times is limited, thermal effect is poor, therefore, uses at present that storage battery is short as the device average life of induction energy fetching power supply intermediate energy storage element, poor reliability, volume shortcoming heavily etc.
Summary of the invention
For usining at present, storage battery is short as the power supply average life of intermediate energy storage element, battery charging and discharging complex management, shortcoming that volume is heavy, proposes a kind of transmission line novel power supply energy storage device.
A novel power supply energy storage device, comprising: high-performance lithium battery, DC-DC converter, super storage capacitor, control switching circuit.It is that monitoring terminal is powered that high-performance lithium battery, DC-DC converter, super storage capacitor are controlled by control switching circuit as three kinds of different energy-provision way; High-performance lithium battery and super capacitor are fault moment energy-storage travelling wave tube, are connected respectively with DC-DC converter; Control switching circuit is connected with super capacitor with high-performance lithium battery, DC-DC converter.
In an embodiment, power supply energy storage device is installed on transmission line wire therein.
In an embodiment, control switching circuit consists of P-MOSFET, low loss power supply controller LTC4412 and pull-up resistor therein.Wherein, the voltage input end of the drain electrode of P-MOSFET and low loss power supply controller LTC4412 is as power input, the grid of P-MOSFET is connected with the gate pole of low loss power supply controller LTC4412, the earth terminal of low loss power supply controller LTC4412 and control termination earth terminal, the power supply monitoring pin of the distal pole of P-MOSFET and low loss power supply controller LTC4412 connects power supply output, after the state indication pin of low loss power supply controller LTC4412 connects pull-up resistor, connects power supply output.
In an embodiment, control switching circuit is connected with row ripple monitoring device therein, is its power supply.
The utility model solves the technical scheme that its technical problem adopts:
Power supply energy storage device is installed on transmission line wire, when the normal operation of transmission line load, DC-DC converter is the power supply of row ripple monitoring terminal, is super storage capacitor and high-performance lithium cell charging simultaneously, and high-performance lithium battery and super capacitor are fault moment energy-storage travelling wave tube.Once fault moment arrives and causes line outage, makes electrical source exchange to super storage capacitor through control switching circuit, is powered for row ripple monitoring terminal by it; When super storage capacitor energy approach exhaustion, it is extremely that row ripple monitoring terminal is powered by high-performance lithium battery that control switching circuit makes electrical source exchange.When transmission line load restoration normally moves, it is the power supply of row ripple monitoring terminal that control switching circuit makes electrical source exchange to DC-DC converter, is super storage capacitor and high-performance lithium cell charging simultaneously, and this process moves in circles.The realization of this function is mainly completed by control switching circuit: when power input represents super storage capacitor, power supply is output as the output of DC-DC converter voltage, when electric power output voltage is above higher than the about 20mv of power input V1, P-MOSFET turn-offs, row ripple monitoring terminal is powered by DC-DC converter, and when circuit is during because of fault outage, DC-DC converter output voltage is zero, P-MOSFET conducting, row ripple monitoring terminal is powered by super storage capacitor.When DC-DC converter is output as zero, now power input V1 represents high-performance lithium battery, and power supply is output as super storage capacitor voltage.Similarly, if super storage capacitor voltage higher than more than the about 20mV of high-performance lithium battery, P-MOSFET turn-offs and by super storage capacitor, row ripple monitoring terminal to be powered, on the contrary P-MOSFET is powered to row ripple monitoring terminal by high-performance lithium battery.
By the power supply energy storage device of this method development, there is the good characteristics such as life-span length, good stability, volume are little, and be successfully applied in electric power system, can meet well the in the situation that of fault moment line outage, monitoring terminal can be used for the demand of record trouble information stable operation a period of time.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further illustrated.
Fig. 1 is the system architecture diagram of this device.
Fig. 2 is control switching circuit schematic diagram.
1. power inputs in figure, 2. ground connection, 3.P-MOSFET, 4. low loss power supply controller LTC4412,5. power supply output, 6. pull-up resistor.
Embodiment
In Fig. 1, power supply energy storage section is comprised of high-performance lithium battery, DC-DC converter, super storage capacitor, control switching circuit, and row ripple monitoring terminal is power source loads.When the normal operation of transmission line load, DC-DC converter is the power supply of row ripple monitoring terminal, is super storage capacitor and high-performance lithium cell charging simultaneously.Once fault moment arrives and causes line outage, makes electrical source exchange to super storage capacitor through control switching circuit, is powered for row ripple monitoring terminal by it; When super storage capacitor energy approach exhaustion, it is extremely that row ripple monitoring terminal is powered by high-performance lithium battery that control switching circuit makes electrical source exchange.When transmission line load restoration normally moves, it is the power supply of row ripple monitoring terminal that control switching circuit makes electrical source exchange to DC-DC converter, is super storage capacitor and high-performance lithium cell charging simultaneously, and this process moves in circles.
In Fig. 2, control switching circuit consists of power input 1, ground connection 2, P-MOSFET3, low loss power supply controller LTC44124, power supply output 5, pull-up resistor 6.When power input 1 represents super storage capacitor, power supply output 5 is the output of DC-DC converter voltage, when power supply is exported 5 voltages when above higher than the about 20mV of power input 1, P-MOSFET3 turn-offs, row ripple monitoring terminal is powered by DC-DC converter, and when circuit is during because of fault outage, DC-DC converter output voltage is zero, 3 conductings, row ripple monitoring terminal is powered by super storage capacitor.When DC-DC converter is output as zero, now power input 1 represents high-performance lithium battery, and power supply output 5 is super storage capacitor voltage.Similarly, if super storage capacitor voltage higher than more than the about 20mV of high-performance lithium battery, P-MOSFET3 turn-offs and by super storage capacitor, row ripple monitoring terminal to be powered, on the contrary P-MOSFET3 is powered to row ripple monitoring terminal by high-performance lithium battery.
Above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (3)
1. a transmission line novel power supply energy storage device, it is characterized in that: this device is installed on transmission line wire, this device comprises a high-performance lithium battery, a DC-DC converter, a super storage capacitor and a control switching circuit, described DC-DC converter is connected with described super storage capacitor with described high-performance lithium battery respectively, described DC-DC converter, high-performance lithium battery and super storage capacitor are connected with described control switching circuit again, and described control switching circuit is connected with row ripple monitoring terminal.
2. a kind of transmission line novel power supply energy storage device according to claim 1, is characterized in that: described control switching circuit consists of P-MOSFET, low loss power supply controller LTC4412 and pull-up resistor.
3. a kind of transmission line novel power supply energy storage device according to claim 1, is characterized in that: described high-performance lithium battery and super capacitor are fault moment energy-storage travelling wave tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320257459.0U CN203445632U (en) | 2013-05-13 | 2013-05-13 | Novel power supply energy storage apparatus on power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320257459.0U CN203445632U (en) | 2013-05-13 | 2013-05-13 | Novel power supply energy storage apparatus on power transmission line |
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| CN203445632U true CN203445632U (en) | 2014-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320257459.0U Expired - Lifetime CN203445632U (en) | 2013-05-13 | 2013-05-13 | Novel power supply energy storage apparatus on power transmission line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712285A (en) * | 2014-11-28 | 2017-05-24 | 国网浙江省电力公司湖州供电公司 | Distribution line online monitoring and acquisition terminal supporting solar energy pickup |
| CN106992529A (en) * | 2017-04-01 | 2017-07-28 | 国家电网公司 | A kind of distribution box distribution transformer terminals for improving reactive-load compensation efficiency |
-
2013
- 2013-05-13 CN CN201320257459.0U patent/CN203445632U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712285A (en) * | 2014-11-28 | 2017-05-24 | 国网浙江省电力公司湖州供电公司 | Distribution line online monitoring and acquisition terminal supporting solar energy pickup |
| CN106712285B (en) * | 2014-11-28 | 2019-07-30 | 国网浙江省电力公司湖州供电公司 | Solar energy is supported to take the distribution line on-line monitoring acquisition terminal of electricity |
| CN106992529A (en) * | 2017-04-01 | 2017-07-28 | 国家电网公司 | A kind of distribution box distribution transformer terminals for improving reactive-load compensation efficiency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Hainan Power Technology Research Institute Document name: Notification to Pay the Fees |
|
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wu Qing Inventor after: Hu Bin Inventor after: Huang Song Inventor after: Chen Qinzhu Inventor after: Liang Yafeng Inventor before: Wu Qing Inventor before: Hu Bin Inventor before: Huang Song Inventor before: Chen Qinzhu Inventor before: Liang Yafeng Inventor before: Qian Guanjun Inventor before: Zhang Guoqing Inventor before: Yue Xingui |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Longhua District of Hainan city in Haikou province 570311 Hai posterior No. 23 Co-patentee after: WUHAN SUNSHINE POWER SCIENCE & TECHNOLOGY Co.,Ltd. Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. Address before: 570203 No. 34, Fu Hai Road, Haikou, Hainan Co-patentee before: WUHAN SUNSHINE POWER SCIENCE & TECHNOLOGY Co.,Ltd. Patentee before: Hainan Power Technology Research Institute |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180213 Address after: Longhua District of Hainan city in Haikou province 570311 Hai posterior No. 23 Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. Address before: Longhua District of Hainan city in Haikou province 570311 Hai posterior No. 23 Co-patentee before: WUHAN SUNSHINE POWER SCIENCE & TECHNOLOGY Co.,Ltd. Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF HAINAN POWER GRID Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140219 |