CN103117587B - A kind of super capacitor-type supply unit being applicable to looped network cabinet - Google Patents
A kind of super capacitor-type supply unit being applicable to looped network cabinet Download PDFInfo
- Publication number
- CN103117587B CN103117587B CN201310076135.1A CN201310076135A CN103117587B CN 103117587 B CN103117587 B CN 103117587B CN 201310076135 A CN201310076135 A CN 201310076135A CN 103117587 B CN103117587 B CN 103117587B
- Authority
- CN
- China
- Prior art keywords
- super capacitor
- power supply
- looped network
- network cabinet
- mutual inductor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 29
- 230000006698 induction Effects 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000004146 energy storage Methods 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 210000000080 chela (arthropods) Anatomy 0.000 abstract description 4
- 239000013589 supplement Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 101000746134 Homo sapiens DNA endonuclease RBBP8 Proteins 0.000 description 1
- 101000969031 Homo sapiens Nuclear protein 1 Proteins 0.000 description 1
- 102100021133 Nuclear protein 1 Human genes 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Abstract
The present invention discloses a kind of super capacitor-type supply unit being applicable to looped network cabinet, the parallel connection of two-way CT mutual inductor is adopted to respond to power taking from circuit, CT mutual inductor and induction power supply model calling, for load provides power supply after induction power supply resume module after CT mutual inductor power taking, simultaneously to super capacitor charging, and with solar power supply apparatus as get can supplement and charge to super capacitor. The power supply device of the present invention, compared with the power supply device that looped network cabinet on-line monitoring system uses, owing to have employed CT(pincers) power taking, need not have a power failure when monitoring equipment being installed in looped network cabinet, looped network cabinet need not be transformed and greatly save workload; Adopt super capacitor to substitute chemical energy store battery as energy storage device, reduce the maintenance workload between the operating period, significantly improve service life of equipment.
Description
Technical field
The present invention relates to a kind of super capacitor-type supply unit being applicable to looped network cabinet, belong to technical field of electric power.
Background technology
At present, along with the proposition of Guo Wang company intelligent grid strategy, distribution network automated had new intension, and relevant technical study is also progressively carried out, and its principal concern is automatization and intellectuality. Looped network cabinet energy deciliter, bearing load electric current, looped network electric current are the important equipment in ring network power supply system. It is one of the main contents of electrical power distribution automatization system to the state of health of equipment various in looped network cabinet and the monitoring of running status. Owing to looped network cabinet place of erection is mostly in open air, usually power supply is not provided in cabinet, the supply unit powered to the sensor in cabinet, communication equipment need to possess get can ability, when distribution fault, power supply also should keep being energized to communication equipment to transmit failure message. Existing supply unit adopts PT or sun power power taking, chemical energy batteries to store energy mostly, has several bigger deficiencies, and one is that PT volume is big, and in cabinet, space is little, affects maintenance, the maintenance of looped network cabinet after installing PT; Two is install PT to need to have a power failure, it is necessary to looped network cabinet is carried out transformation could PT side access circuit, if it is huge to promote the use of engineering amount, and the time that interruption maintenance need to be waited could implement, the implementation cycle is long; Three is that chemical energy energy storage device such as lead acid cell recycles the number of times irregular maintenance of needs few, most, and looped network cabinet installs quantity greatly, widely distributed, so the later maintenance work of power supply is heavy; Four is that sun power power taking is limited to the geographical position residing for looped network cabinet and weather effect, and power is less and gets energy instability. Due to the shortcoming of existing supply unit, looped network cabinet on-line monitoring cannot obtain applying on a large scale.
Summary of the invention
It is an object of the invention to propose a kind of novel power supply device Integrated Solution, adopt super capacitor as energy storage device, CT and sun power two-way are got can, solve existing looped network cabinet on-line monitoring system supply unit used recycle that number of times is few, maintenance big, volume is big and needs the problems such as the existing looped network cabinet of transformation that have a power failure.
For solving the problems of the technologies described above, the present invention takes following technical scheme:
A kind of super capacitor-type supply unit being applicable to looped network cabinet, it is characterized in that, the parallel connection of two-way CT mutual inductor is adopted to respond to power taking from circuit, CT mutual inductor and induction power supply model calling, for load provides power supply after induction power supply resume module after CT mutual inductor power taking, simultaneously to super capacitor charging, by solar power supply apparatus as the supplementary charging getting energy while of described super capacitor.
Described induction power supply module comprises the main controllable rectifier module and auxiliary controllable rectifier module that are connected respectively with two-way CT mutual inductor, electric current after described main controllable rectifier module and auxiliary controllable rectifier module rectification enters electromotive force lake, and control main PWM conversion module by a master control unit according to the sampling current in electromotive force lake, controlled to load output voltage by described main PWM conversion module, or charged to super capacitor by described main PWM conversion module control charge and discharge control module.
When getting the electrical energy demands that can be not enough to support load when described CT mutual induction, control super capacitor electric discharge by described induction power supply module and maintain load work.
Connect by two-wire cable between described CT mutual inductor and described induction power supply module.
Described load comprises the sensor and communication equipment that are arranged in looped network cabinet.
The present invention is from the different of existing supply unit: 1) which kind of power supply mode no matter prior art adopt, be all single get can pattern, and energy storage device is the store battery of chemical energy; The present invention adopts two kinds of forms getting energy mode combinations, i.e. induction power supply module and the combination of sun power electricity-fetching module, and energy storage device is super capacitor. 2) prior art also have adopt induction power taking application, but due to electric current during distribution line low power consumption little, the power of now CT power taking is little of being not enough to power to sensor, communication equipment, therefore can only adopt PT power taking; The mode power taking that the present invention adopts two open type CT pincers in parallel, uses as a supplement solar powered simultaneously, overcomes single CT power taking defect that power is excessively little when circuit low power consumption, have simultaneously CT clamp power taking volume little, can the advantage of hot line work.
The useful effect that the present invention reaches:
The power supply device of the present invention, compared with the power supply device that looped network cabinet on-line monitoring system uses, owing to have employed CT(pincers) power taking, need not have a power failure when monitoring equipment being installed in looped network cabinet, looped network cabinet need not be transformed and greatly save workload; Adopt super capacitor to substitute chemical energy store battery as energy storage device, reduce the maintenance workload between the operating period, significantly improve service life of equipment.
Accompanying drawing explanation
Fig. 1 is super capacitor-type sun power ups power principle of work figure.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described. Following examples are only for clearly illustrating the technical scheme of the present invention, and can not limit the scope of the invention with this.
As shown in Figure 1, the present invention adopts the parallel connection of two-way CT mutual inductor to respond to power taking from circuit, CT mutual inductor and induction power supply model calling, for load provides power supply after induction power supply resume module after CT mutual inductor power taking, simultaneously to super capacitor charging, by solar power supply apparatus as the supplementary charging getting energy while of super capacitor.
Induction power supply module comprises the main controllable rectifier module and auxiliary controllable rectifier module that are connected respectively with two-way CT mutual inductor, electric current after main controllable rectifier module and auxiliary controllable rectifier module rectification enters electromotive force lake, and control main PWM conversion module by a master control unit according to the sampling current in electromotive force lake, controlled to load output voltage by main PWM conversion module, or charged to super capacitor by main PWM conversion module control charge and discharge control module.
Main thought and the concrete steps of the inventive method are as follows:
Main thought is: utilize induction power taking to power to sensor, communication equipment at distribution line normal operation and when not being in low power consumption, induction electricity getting device and solar power supply apparatus charge to super capacitor simultaneously; During line fault, super capacitor discharges and powers to sensor, communication equipment.
Specific implementation is as follows:
(1) power taking is responded to: utilize electromagnetic induction principle, with the use of saturated coil, adopt open type CT pincers to extract and voltage of alternating current responded to by cable line, power then to after overcommutation, filtering and voltage stabilizing sensor, communication equipment, simultaneously for super capacitor provides electric energy. During installation, each supply unit connects two CT, and each CT is stuck on a different circuit.
Significant parameter is:
Get and can insulate by mutual inductor: 10kV;
Main output voltage: 12V �� 1%;
Wake electric current up: 10A;
Peak power output: 20W;
Merit stream compares: 0.22;
2W load primary current: 18A;
5W load primary current: 35A;
Minimum fully loaded primary current: 105A;
Reservoir capacitance is withstand voltage: 15V;
Reservoir capacitance capacity: do not limit;
The maximum outside diameter of cable: 38mm.
(2) solar recharging: while induction power taking, produces electric energy by solar energy equipment and is charged by super capacitor, and the sun is insufficient, rainy weather electric current is less, it is also possible to is absorbed by super capacitor and stores. Solar energy equipment can not be discharged by super capacitor.
Solar power supply apparatus significant parameter is:
Material: polysilicon;
Model: YF-P20;
Rated output: 20W;
Size: 363*529*25(MM);
Operating voltage: 17.2V;
Working current: 1.16A.
Super capacitor discharges: when night, distribution line electric current was less, and induction energy fetching is not enough to support the electrical energy demands of sensor and communication equipment, and now super capacitor electric discharge is to maintain sensor and communication equipment work.
Below in conjunction with Fig. 1, electricity super capacitor sun power ups power work performing step is described.
Wherein, the terminal block in Fig. 1 is described as follows:
OL1: overload (current in wire is not enough) alarm output terminal 1;
OL2: overload (current in wire is not enough) alarm output terminal 2;
Gnd: power supply ground;
Vo+:+24V voltage exports, and outward current is not more than 1A;
C+: reservoir capacitance positive pole, electric capacity requirement of withstand voltage is not less than 15V;
C-: reservoir capacitance negative pole;
COM1, COM2: master gets energy mutual inductor input terminal;
S1, S2: auxiliary getting can mutual inductor input terminal.
Wiring is described as follows:
Get to be 2.5mm by sectional area between mutual inductor and induction power supply module2Two-wire cable connect, without the need to considering current phhase during connection, namely two-wire cable can appoint respectively be connected to get can mutual inductor two terminal studs on. For ensureing safety, get can transformer casing and induction power supply module housing all should reliable ground.
Specific implementation step is as follows:
1) electromotive force lake technology and high-frequency isolation DC/DC is adopted to convert technology, electric current in cable is carried out induction power taking, meet the safe power supply requirement in the multiple severe situations such as high-tension current impact and load saltus step, adopt PWM control techniques simultaneously, only charge when current in wire is greater than load power taking requirement, both extended the reservoir capacitance life-span, improved again charging efficiency, and the charged without impacting replacing of reservoir capacitance can have been realized.
2) solar components can be that super capacitor directly charges while induction power taking, even if sunlight is insufficient, rainy weather makes by the electric current of solar panels excessively little, its luminous energy can also be absorbed by super capacitor and store.
3) when induced current is excessively little, being not enough to maintain monitoring equipment when powering, super capacitor gives the power supply of monitoring equipment automatically, to maintain the normal operation of monitoring equipment.
The above is only the preferred embodiment of the present invention; it is noted that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also making some improvement and distortion, these improve and distortion also should be considered as protection scope of the present invention.
Claims (4)
1. one kind is applicable to the super capacitor-type supply unit of looped network cabinet, it is characterized in that, the parallel connection of two-way CT mutual inductor is adopted to respond to power taking from circuit, described CT mutual inductor and induction power supply model calling, for load provides power supply after described induction power supply resume module after CT mutual inductor power taking, simultaneously to super capacitor charging, by solar power supply apparatus as the supplementary charging getting energy while of described super capacitor;
Described induction power supply module comprises the main controllable rectifier module and auxiliary controllable rectifier module that are connected respectively with two-way CT mutual inductor, electric current after described main controllable rectifier module and auxiliary controllable rectifier module rectification enters electromotive force lake, and control main PWM conversion module by a master control unit according to the sampling current in electromotive force lake, controlled to load output voltage by described main PWM conversion module, or charged to super capacitor by described main PWM conversion module control charge and discharge control module.
2. the super capacitor-type supply unit being applicable to looped network cabinet according to claim 1, is characterized in that, when getting the electrical energy demands that can be not enough to support load when described CT mutual inductor, controls super capacitor electric discharge by described induction power supply module and maintains load work.
3. the super capacitor-type supply unit being applicable to looped network cabinet according to claim 1, is characterized in that, connects by two-wire cable between described CT mutual inductor and described induction power supply module.
4. the super capacitor-type supply unit being applicable to looped network cabinet according to claim 1, is characterized in that, described load comprises the sensor and communication equipment that are arranged in looped network cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076135.1A CN103117587B (en) | 2013-03-11 | 2013-03-11 | A kind of super capacitor-type supply unit being applicable to looped network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076135.1A CN103117587B (en) | 2013-03-11 | 2013-03-11 | A kind of super capacitor-type supply unit being applicable to looped network cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103117587A CN103117587A (en) | 2013-05-22 |
| CN103117587B true CN103117587B (en) | 2016-06-08 |
Family
ID=48415890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310076135.1A Active CN103117587B (en) | 2013-03-11 | 2013-03-11 | A kind of super capacitor-type supply unit being applicable to looped network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103117587B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377832B (en) * | 2014-11-28 | 2017-05-31 | 国家电网公司 | Support the distribution line on-line monitoring acquisition terminal of solar energy power taking |
| CN105429287B (en) * | 2015-11-10 | 2019-02-22 | 国网北京市电力公司 | The method of supplying power to and device of ring network cabinet monitoring device |
| CN107689688A (en) * | 2017-10-30 | 2018-02-13 | 常州工学院 | A kind of transformer power taking power supply for carrying balancing |
| CN109286235B (en) * | 2018-11-27 | 2023-08-22 | 南方电网科学研究院有限责任公司 | Power supply system of power system monitoring equipment |
| CN109861366A (en) * | 2019-04-10 | 2019-06-07 | 广东电网有限责任公司 | A kind of double CT for high-tension cable monitoring device take electric power supply unit |
| CN111555426A (en) * | 2020-05-22 | 2020-08-18 | 东北电力大学 | Comprehensive energy-taking module for monitoring overhead line of power distribution network |
| CN113890199A (en) * | 2021-09-24 | 2022-01-04 | 天津送变电工程有限公司 | Induction energy taking device based on overhead transmission line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697430A (en) * | 2009-11-12 | 2010-04-21 | 上海交通大学 | Power control method based CT electricity getting device of high voltage transmission line |
| CN101728876A (en) * | 2010-01-11 | 2010-06-09 | 山东康威通信技术有限公司 | Non-contact inductive electricity-getting device for electric tunnel cable |
| CN202019233U (en) * | 2011-05-10 | 2011-10-26 | 褚强 | Universal independent power supply device for photomagnetic complementary power transmission and distribution circuit on-line monitoring system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006230136A (en) * | 2005-02-18 | 2006-08-31 | Zephyr Corp | Power generation system |
-
2013
- 2013-03-11 CN CN201310076135.1A patent/CN103117587B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101697430A (en) * | 2009-11-12 | 2010-04-21 | 上海交通大学 | Power control method based CT electricity getting device of high voltage transmission line |
| CN101728876A (en) * | 2010-01-11 | 2010-06-09 | 山东康威通信技术有限公司 | Non-contact inductive electricity-getting device for electric tunnel cable |
| CN202019233U (en) * | 2011-05-10 | 2011-10-26 | 褚强 | Universal independent power supply device for photomagnetic complementary power transmission and distribution circuit on-line monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103117587A (en) | 2013-05-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103117587B (en) | A kind of super capacitor-type supply unit being applicable to looped network cabinet | |
| CN105914868B (en) | Super capacitor energy-storage uninterruptible power supply and its method of supplying power to based on current transformer | |
| CN107571817B (en) | Vehicle-mounted composite power supply system | |
| CN205622303U (en) | Utilize super capacitor to realize that current transformer of uninterrupted power supply gets electric power supply circuit | |
| CN102185329A (en) | Super-capacitor-based DC voltage sag suppression device and suppression method thereof | |
| CN201328023Y (en) | Back-up power for electric pitch system of wind turbine | |
| CN203491707U (en) | Energy storage system based on cascade utilization of power battery | |
| CN203377675U (en) | Bus station intelligent power supply system characterized by clean energy compensation | |
| CN208714993U (en) | A kind of charging circuit for electric vehicles | |
| CN205304271U (en) | Alternating current circuit field energy collection system of impedance characteristic based on transformer | |
| CN202798128U (en) | Independent photovoltaic power supply system with self-starting function | |
| CN102118067A (en) | Non-contact high-voltage power obtaining method | |
| CN104795881A (en) | Wind-light complementary power supply controller, microgrid system and microgrid system power supply method | |
| CN204068408U (en) | Be applied to the novel power taking supply unit of cable work well array water | |
| CN102522814A (en) | Wind-solar hybrid distribution type generating set | |
| CN201918749U (en) | Microcomputer type AC (alternating current)/DC (direct current) integrated power-supply device | |
| CN203734367U (en) | Communication base station solar power generation DC grid-connected power supply system | |
| CN102849580A (en) | Elevator system | |
| CN206533188U (en) | A kind of FTU power source specials | |
| CN202042930U (en) | Battery management system for solar air conditioner | |
| CN202712946U (en) | UPS charging module device | |
| CN201458458U (en) | Elevator by utilizing wind energy | |
| CN204349549U (en) | A kind of for the motor-driven fast charging and discharging management system of workover rig | |
| CN204258422U (en) | A kind of lightening detection station from far-off regions dual power supply device | |
| CN202474934U (en) | Medium voltage emergency power supply taking boosting rectification as charging security |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |