CN102882271A - Distribution automation portable test power source - Google Patents
Distribution automation portable test power source Download PDFInfo
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- CN102882271A CN102882271A CN2012104351703A CN201210435170A CN102882271A CN 102882271 A CN102882271 A CN 102882271A CN 2012104351703 A CN2012104351703 A CN 2012104351703A CN 201210435170 A CN201210435170 A CN 201210435170A CN 102882271 A CN102882271 A CN 102882271A
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- 238000012360 testing method Methods 0.000 title abstract description 18
- 238000012423 maintenance Methods 0.000 abstract description 7
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- 238000001994 activation Methods 0.000 description 10
- 230000004913 activation Effects 0.000 description 9
- 238000002474 experimental method Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 7
- 238000004146 energy storage Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000020411 cell activation Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
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- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
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- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 238000009434 installation Methods 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
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Abstract
The invention relates to a distribution automation portable test power source which comprises a power supply module, a rectifying inverter module, a storage battery and a signal indicating unit; a first input end of the rectifying inverter module is connected with an input end of an AC power supply through a first DC air switch; a second input end of the rectifying inverter module is connected with an input end of a DC power supply through the power supply module and a second DC air switch; a third input end of the rectifying inverter module is connected with the storage battery through a third DC air switch; and the rectifying inverter module is further connected with the signal indicating unit. The test power source can meet the test requirement of an intelligent distribution network in the maintenance process, the portable and economic as well as safe and reliable test power source with stable voltage, sufficient capacity, environmental friendliness and good quality is provided, and the automatic maintenance and test level of the distribution network is improved.
Description
Technical field
The present invention relates to power distribution automation nigration power supply, be applied to power distribution automation site examining and repairing field.
Background technology
Distribution Automation Technology is at the early-stage in the practical development of China, and along with the lifting of intelligent terminal coverage rate in the power distribution network, site examining and repairing work will be day by day frequent.Because many segmental structures characteristics of power distribution network, the power distribution automation intelligent terminal will be installed on circuit (comprising overhead transmission line and cable) along the line, power supply is generally taken from and voltage or current transformer, and when line outage is overhauled, above-mentioned intelligent terminal will lose the maintenance power supply.Back-up source among modern FTU, DTU, the TTU can not satisfy the checking experiment requirement because its energy-storage travelling wave tube capacity is little.
Investigate for power distribution automation maintenance power supply market supply situation, also without complete power distribution automation Special test power supply, particularly at present distribution power automation terminal, the power supply in communication module and power distribution network breaker operator loop generally adopts direct current 24V or 48V on the spot, existing site examining and repairing power supply can not satisfy the site examining and repairing of Current Distribution Automation equipment without the product that above-mentioned two kinds of electric pressures are provided simultaneously.Although also have in the site examining and repairing adopt to exchange diesel engine generator and produce AC power, pass through again voltage regulator transformation, rectifying installation rectification after, at last by carrying out the power supply of direct current voltage reulation supply arrangement.But this situation needs, and equipment is many, field connection is complicated, pollute (comprising noise) serious, be unfavorable in the city, the maintenance of power distribution automation equipment in the residential block.In addition, distribution power automation terminal arranges multi-point and wide-ranging, as to be distributed in city and outskirts of a town streets and lanes in the urban power distribution network, and the portability of existing equipment is also relatively poor, affects the raising of power supply reliability and the lifting of good service level.
Summary of the invention
For above the deficiencies in the prior art, the invention provides a kind of power distribution automation nigration power supply.Have voltage stabilization to satisfy the requirement of intelligent power distribution net checking experiment, to provide, the experiment power supply of capacity abundance, portable economy, safe and reliable, environmental protection high-quality, improved distribution network automated checking experiment level.
Purpose of the present invention is achieved through the following technical solutions:
Power distribution automation nigration power supply, this power supply comprises power module, the commutation inversion power module, batteries and signal designation unit, the first input end of described commutation inversion power module connects ac power input end by the first direct current air switch, the second input of described commutation inversion power module respectively by power module be connected direct current air switch and connect dc supply input, the 3rd input of described commutation inversion power module connects batteries by the 3rd direct current air switch, and described commutation inversion power module also is connected with the signal designation unit.
Further, described batteries comprises 24V and 48V direct voltage output.
Further, described power module is connected with the 24V DC power supply.
Further, described the second direct current air switch is connected with the 48V DC power supply.
The invention has the advantages that:
1) armamentarium of nigration power supply is arranged in one movably on the cabinet, is convenient to the application of work on the spot, little, the lightweight characteristics of volume so that the site examining and repairing working strength effectively reduce.Originally need the equipment of 5 people carrying, only 1 people can finish the work now.
2) power distribution automation nigration power supply, calculating and design through oversampling circuit, can satisfy alternating current 220V, direct current 24V, the requirement of direct current 48V power supply of power distribution automation intelligent cell site examining and repairing, solve the problem that original field apparatus unit is many, wiring is complicated.In the field test process, power-supply system does not need wiring, lifting test efficient greatly, accumulative total reduced test duration 1 hour/time, Effective Raise distribution network reliability.
3) safe coefficient of raising site examining and repairing work is because experiment power supply without the binding post that leaks outside, has reduced the possibility of testing crew contact electrification binding post.
Description of drawings
Fig. 1: structure principle chart of the present invention.
Embodiment
Be illustrated in figure 1 as structure principle chart of the present invention, power distribution automation nigration power supply comprises power module, the commutation inversion power module, batteries and signal designation unit, the first input end of described commutation inversion power module connects ac power input end by the first direct current air switch, the second input of described commutation inversion power module respectively by power module be connected direct current air switch and connect dc supply input, the 3rd input of described commutation inversion power module connects batteries by the 3rd direct current air switch, and described commutation inversion power module also is connected with the signal designation unit.Described batteries comprises 24V and 48V direct voltage output.Described power module is connected with the 24V DC power supply.Described the second direct current air switch is connected with the 48V DC power supply.The below describes the experiment power supply course of work.
Normally the alternating current 220V with input is transformed into the 24V direct current of distribution power automation terminal power devices and the direct current 48V that the pole-mounted circuit breaker operation circuit uses, and this 48V also can use for communication equipment on the spot.The nigration power supply should satisfy the output of direct alternating current 220V, namely have in the situation of alternating current 220V in the testing ground, directly output AC 220V voltage is for relevant load, and carries out synchronously the charging of backup batteries and conversion and the output of 24V and 48V direct voltage.Direct current 48V need to satisfy on the spot the power supply capacity requirement of 1 breaker operator and communication equipment, the about 400W direct current of maximum instantaneous power.Direct current 24V need to satisfy on the spot the power supply capacity requirement of 1 breaker operator and communication equipment, the about 400W direct current of maximum instantaneous power (mainly being the situation that is direct current 24V for adapting to FTU, DTU device working power and breaker operator power supply).In support power supply of direct-flow storage battery is set.There is no in the situation of input AC charging being full of electricity, satisfy 6 circuit breaker divide-shut brakes 4 times.Adopt the human-computer interaction pattern of battery charging, realization is to the lean management of charging and discharging of storage battery, need to activate when battery tension reduces, during charge or discharge, and the battery management module is exported corresponding signal, the notice testing crew, the operation of being correlated with.At the scene in the test, because storage battery may for the continuous discharge state, when battery tension drops to unallowed low value, should in time send signal.Power-supply system is contained in the aluminium alloy box.
According to the research to power distribution network test requirements document and portable power-supply device energy storage technology, adopting batteries and adopting the method for super capacitor is first-selected two schemes.The new energy storage technology equipment that super capacitor formula development in recent years is got up, the operation maintenance workload is little, and is lightweight, but stored energy capacitance is less, can not satisfy the requirement that works long hours of field test, so the batteries energy storage is the selection scheme of this device energy-storage units.Batteries operating state and life-span are subjected to the impact of temperature comparatively serious, need to carry out Insulation, also will take simultaneously the cooling measure under the worst hot case.
The selection of battery group capacity: in the on-the-spot checking experiment work without Alternating Current Power Supply, the power distribution automation experiment power supply at first provides whole power supply with regard to earth communication system, and then carry out the corresponding circuit-breaker testing of separate unit FTU+, so only consider the total capacity of the pattern configurations nigration power supply of 1 FTU+1 platform circuit breaker+communication system power supply, wherein consider FTU capacity 75W, breaker operator loop and energy storage 300W, communication system 20W, instantaneous max calculation power is 395W.Calculate safety factor according to the storage battery instantaneous output and require (considering temperature coefficient 1.1, aging coefficient 1.1 and nargin coefficient 1.15), selecting practical coefficient is 1.4.Then the instantaneous maximum power of the storage battery of designing requirement is 395W * 1.4=553W.The batteries terminal voltage requires that 24V and 48V direct voltage output are arranged, batteries terminal voltage 48V DC mode, and the 24V direct current adopts 48V/24V voltage transformation module to realize.The intelligent battery administration module of selecting will be exported the 48V direct voltage storage battery is charged.According to calculated capacity and terminal voltage requirement, batteries is selected 4, and its single terminal voltage is 24V, and is in parallel again after the series connection so in twos, satisfies the requirement of terminal voltage and two aspects of capacity.
1DY is power distribution automation nigration Intelligent management of power module in the accompanying drawing, and 2DY is direct current 48V conversion 24V module.At AC power input circuit access 220V alternating voltage, the QF11 that closes exchanges automatic air-break switch, the Intelligent management module working power is provided, 1DY17,1DY15 terminal output 48V DC power supply, for instant load, the QF1 direct current air switch that closes, 1SY5,1SY6 are exportable direct current 48V voltage, the QF direct current air switch that closes, 1SY3,1SY4 are exportable direct current 24V voltage.
Another road direct current output of Intelligent management module 48V(1DY19,1DY21), for batteries provides charge power supply, the QF2 direct current air switch that closes namely can be battery charging.
1ZS is the signal designation unit of power distribution automation nigration power supply, can select 24V light every terminal or 24V signal lamp.
The working power in signal designation loop directly is taken at 24V DC power supply output, no matter guarantee whether incoming transport charge power supply of nigration power supply, signal designation unit all can work (in the batteries to store energy situation)
Signal circuit is designed to the Intelligent management of power module and exports empty node mode, comprising:
Power failure indication is opened: power supply output is under short circuit, protection, the state such as under-voltage, and this indicator light is lighted;
Battery undervoltage indication open into: when cell voltage was lower than the 40V left and right sides, indicator light was lighted, and pilot cell is under-voltage;
Cell activation indication open into: during cell activation, this indicator light is lighted;
Intelligent management module work indication open into: when the intelligent power module had input, indicator light was lighted.
For guaranteeing that batteries is operated in normal condition, need to carry out operation and maintenance to batteries, batteries is for the first time charged when maybe needing for load supplying, by " start battery " button, drops into batteries as power supply.When needs are released batteries, by " battery withdraws from " button, that batteries is out of service.Attention forbids by " battery withdraws from " button in the storage battery activation process, otherwise can cause the interruption of load supply.
In the time of need to activating batteries, by " activation starts " button, after activation work is finished, withdraw from the activation flow process by " activation is withdrawed from " or according to the judgement of intelligent electric power management module self.
Intelligent mobile is tested the inside that lights a cigarette backup battery, is the emphasis of safeguarding, needs about half a year battery to be carried out activation act one time.Before the activation, storage battery should be in full state; Press activation button (note this moment, storage battery drops into sky and opens and should drop into, and alternating current input power supplying is not essential, the intelligent power run with load), start cell activation; After activation was finished, intelligent power withdrawed from the state of activation automatically, and automatically shuts down battery.
The normal charge in batteries time is 8 hours, and intelligent electric power management module controls storage battery changes the floating charge mode over to according to the charging of constant current constant voltage pattern and automation.
In the 512 line outage processes of Dongshan slope, the DTU and 2 of #2, #3 ring main unit is advanced 4 go out line-breaker and carry out checking experiment, the nigration power supply can satisfy the power reguirements of equipment in the whole process of the test, the alarm free phenomenon.
Should be appreciated that the above detailed description of technical scheme of the present invention being carried out by preferred embodiment is illustrative and not restrictive.Those of ordinary skill in the art is reading on the basis of specification of the present invention and can make amendment to the technical scheme that each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (4)
1. power distribution automation nigration power supply, it is characterized in that, this power supply comprises power module, the commutation inversion power module, batteries and signal designation unit, the first input end of described commutation inversion power module connects ac power input end by the first direct current air switch, the second input of described commutation inversion power module respectively by power module be connected direct current air switch and connect dc supply input, the 3rd input of described commutation inversion power module connects batteries by the 3rd direct current air switch, and described commutation inversion power module also is connected with the signal designation unit.
2. power distribution automation nigration power supply according to claim 1 is characterized in that, described batteries comprises 24V and 48V direct voltage output.
3. power distribution automation nigration power supply according to claim 1 is characterized in that, described power module is connected with the 24V DC power supply.
4. power distribution automation nigration power supply according to claim 1 is characterized in that, described the second direct current air switch is connected with the 48V DC power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104351703A CN102882271A (en) | 2012-11-05 | 2012-11-05 | Distribution automation portable test power source |
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| CN2012104351703A CN102882271A (en) | 2012-11-05 | 2012-11-05 | Distribution automation portable test power source |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092215A (en) * | 2014-06-24 | 2014-10-08 | 广东电网公司佛山供电局 | Distribution transformer capacity control method and system |
| CN107402332A (en) * | 2016-05-20 | 2017-11-28 | 中国电力科学研究院 | A kind of Intelligent power distribution terminal multi-epitope automatic checkout system and its detection method |
| CN109698609A (en) * | 2019-01-25 | 2019-04-30 | 中铁武汉电气化局集团有限公司上海分公司 | A kind of railway signal test multifunctional power supply device |
| CN115208033A (en) * | 2022-09-14 | 2022-10-18 | 江苏楚能工程技术有限公司 | Intelligent integrated power supply system |
| DE102021122954A1 (en) | 2021-09-06 | 2023-03-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | System and computer program product for validating a network of distributed, controllable energy consumers and energy producers |
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| CN202978417U (en) * | 2012-11-05 | 2013-06-05 | 冀北电力有限公司张家口供电公司 | Distribution automation mobile test power supply |
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2012
- 2012-11-05 CN CN2012104351703A patent/CN102882271A/en active Pending
Patent Citations (5)
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| CN2525717Y (en) * | 2001-10-19 | 2002-12-11 | 周忠正 | Silicon controlled uninterrupted power supply |
| CN1787717A (en) * | 2005-11-18 | 2006-06-14 | 清华大学 | Solar energy high voltage sodium lamp controller based on single stage inverter |
| CN102074994A (en) * | 2010-12-10 | 2011-05-25 | 温州电力局 | Charging device of direct-current (DC) system |
| CN202145578U (en) * | 2011-07-20 | 2012-02-15 | 高平 | Network cabinet of AC (alternating current) and DC (direct current) integrated back-up source |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104092215A (en) * | 2014-06-24 | 2014-10-08 | 广东电网公司佛山供电局 | Distribution transformer capacity control method and system |
| CN104092215B (en) * | 2014-06-24 | 2016-06-22 | 广东电网公司佛山供电局 | Distribution transformer capacity control method and system |
| CN107402332A (en) * | 2016-05-20 | 2017-11-28 | 中国电力科学研究院 | A kind of Intelligent power distribution terminal multi-epitope automatic checkout system and its detection method |
| CN107402332B (en) * | 2016-05-20 | 2021-01-08 | 中国电力科学研究院 | Intelligent power distribution terminal multi-meter-position automatic detection system and detection method thereof |
| CN109698609A (en) * | 2019-01-25 | 2019-04-30 | 中铁武汉电气化局集团有限公司上海分公司 | A kind of railway signal test multifunctional power supply device |
| CN109698609B (en) * | 2019-01-25 | 2023-11-24 | 中铁武汉电气化局集团上海工程建设有限公司 | Multifunctional power supply device for railway signal test |
| DE102021122954A1 (en) | 2021-09-06 | 2023-03-09 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | System and computer program product for validating a network of distributed, controllable energy consumers and energy producers |
| CN115208033A (en) * | 2022-09-14 | 2022-10-18 | 江苏楚能工程技术有限公司 | Intelligent integrated power supply system |
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| C06 | Publication | ||
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Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20121231 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20121231 Address after: 075000 Zhangjiakou City, Hebei province Qiaodong District Road No. 131 Street Applicant after: Zhangjiakou Power Supply Company of Jibei Electric Power Co., Ltd. Applicant after: State Grid Corporation of China Address before: 075000 Zhangjiakou City, Hebei province Qiaodong District Road No. 131 Street Applicant before: Zhangjiakou Power Supply Company of Jibei Electric Power Co., Ltd. |
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Application publication date: 20130116 |