CN104269916A - Method for achieving switching between high-voltage induction power supply and photovoltaic power supply - Google Patents
Method for achieving switching between high-voltage induction power supply and photovoltaic power supply Download PDFInfo
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- CN104269916A CN104269916A CN201410469301.9A CN201410469301A CN104269916A CN 104269916 A CN104269916 A CN 104269916A CN 201410469301 A CN201410469301 A CN 201410469301A CN 104269916 A CN104269916 A CN 104269916A
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- power supply
- power
- voltage induction
- high voltage
- control module
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention relates to a method for achieving switching between a high-voltage induction power supply and a photovoltaic power supply. The method comprises the first step of power taking, the second step of selection and the third step of protection. According to the step of power taking, high-voltage induction power taking and solar photovoltaic power taking are carried out at the same time. According to the step of selection, the power supplies in the first step are connected into loads respectively through relays, a single-chip microcomputer of a power supply selection and control module monitors the voltages of the power supplies in the first step, and the power supply with a higher voltage is selected and made to be in a connected state and supply power to the loads. According to the step of protection, when the situation of over-temperature occurs, the solar photovoltaic power supply is selected to supply power, and therefore safe and ceaseless power supply to the monitoring devices of the loads is guaranteed.
Description
Technical field
The present invention relates to a kind of implementation method of stabilized power supply, especially relate to a kind of implementation method that the power supply of safety, stable, uninterrupted electric power is provided for the checkout gear be installed on ultra-high-tension power transmission line, belong to electrical technology field.
Background technology
The demand for development of intelligent grid is on ultra-high-tension power transmission line or in high-tension switch cabinet, add for the servicing unit of monitoring to improve the condition monitoring capabilities of power transmission and transformation, these servicing units are in hyperbaric environment for a long time, and installation site is also comparatively harsh, and power supply provides not easily;
At present, the supply power mode that servicing unit is conventional has solar photovoltaic power and high voltage induction power taking power supply two kinds; But solar photovoltaic power power is more unstable; Induction power taking power utilization electromagnetic induction principle and magnetic saturation technology, respond on high-tension side electric current by current transformer (CT) and obtain electric energy, but when transmission line break down or undercurrent time power supply cisco unity malfunction, and magnetic saturation technology causes the interchange of CT to export the higher due to voltage spikes of existence, due to voltage spikes can damage power source internal device;
The patent No. is " 201010134788.7 ", name is called " the induction electricity getting device on ultra-high-tension power transmission line ", and generate heat Chinese invention patent, and the patent No. is " 201010002539.2 ", name is called the Chinese invention patent of " non-contact inductive electricity-getting device for electric tunnel cable ", all devise high voltage induction power taking power supply, but this design can not solve when transmission line break down or undercurrent time produced problem, and designed leadage circuit is consisted of power tube and bleeder resistance, when CT output voltage is too high, power tube conducting, spike energy absorption is converted to thermal energy consumption and dissipates by bleeder resistance, and, the method in the application, transmission line very likely needs overlond running because load is nervous, although leave certain allowance when design circuit to electric current, but overload current is once exceed the maximum current of regulation, CT power supply there will be protective circuit damage fault, so that burns rear load, causes great economic loss.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, there is provided a kind of and be there is the use power supply being responded to power taking and photovoltaic power taking from high pressure survey by cordless simultaneously, can be the monitoring device be arranged on ultra-high-tension power transmission line and safety, stable, continual low-tension supply are provided; Cannot normally work even by the problem of burning with the monitoring equipment solved when transmission line breaks down, undercurrent or bleeder resistance working temperature occur when exceeding standard.
The object of the present invention is achieved like this: the implementation method that a kind of high voltage induction power supply and photo-voltaic power supply switch, and described implementation method includes following steps:
Step 1, power taking: carry out high voltage induction power taking and photovoltaic power taking simultaneously;
Step 1A, high voltage induction power taking: utilize current transformer to respond to generation electric current at present from high-pressure side, and control module is selected to input power after its rectifying and wave-filtering;
Step 1B, photovoltaic power taking: utilize photovoltaic electroplax that the photovoltaic electric energy input power obtained is selected control module;
Step 2, selection: the power supply in step 1A and step 1B accesses load respectively after relay, power supply selects the single-chip microcomputer of control module to monitor the supply voltage in step 1A and step 1B, select the high power supply of voltage to be in conducting state, load is powered;
Step 3, protection a: temperature sensor is set in above-mentioned steps 1A temperature detection is carried out to the most advanced and sophisticated leadage circuit in current rectifying and wave filtering circuit, when temperature is too high, the relay that current transformer is connected is cut off by the one-chip computer module be connected with temperature sensor, thus high voltage induction power taking is suspended, and signal is sent by RF radio-frequency module, high voltage induction power taking power supply is in closed condition after selecting the single-chip microcomputer in control module to receive this signal by power supply, solar photovoltaic power is in conducting state, thus avoid being burnt the monitoring equipment as load.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention can solve when transmission line break down, undercurrent or bleeder resistance working temperature exceed standard time, power supply cannot normally work, thus causes monitoring equipment cannot normally work even by the problem of burning, and ensure that load equipment can safe and stable operation.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of power-supply system in the implementation method that switches of a kind of high voltage induction power supply of the present invention and photo-voltaic power supply.
Fig. 2 is the circuit block diagram of the high voltage induction power taking power supply of power-supply system in the implementation method that switches of a kind of high voltage induction power supply of the present invention and photo-voltaic power supply.
Fig. 3 is the circuit block diagram of the solar photovoltaic power of power-supply system in the implementation method that switches of a kind of high voltage induction power supply of the present invention and photo-voltaic power supply.
Wherein:
High voltage induction power taking power supply 1, solar photovoltaic power 2, power supply select control module 3;
Electricity-fetching module 11, electric energy conditioning module 12, intelligent protection module 13;
Bus 111, current transformer core 112, secondary coil 113, sample resistance 114, a single-pole double-throw relay 115;
Rectification circuit 121, most advanced and sophisticated leadage circuit 122, ripple filtering electric capacity 123, voltage stabilizing circuit 124;
Single chip control module 131, RF radio-frequency module 132;
Photovoltaic battery array 21, charging-discharging controller 22, storage battery 23, inverter 24.
Embodiment
See Fig. 1 ~ 3, the implementation method that a kind of high voltage induction power supply that the present invention relates to and photo-voltaic power supply switch, described method includes a power-supply system, described power-supply system includes high voltage induction power taking power supply 1, solar photovoltaic power 2 and power supply and selects control module 3, the power output end of described high voltage induction power taking power supply 1, solar photovoltaic power 2 is connected to the power input that power supply selects control module 3, and described power supply selects the power output end of control module 3 to be connected to load;
Described high voltage induction power taking power supply 1 includes electricity-fetching module 11, electric energy conditioning module 12 and intelligent protection module 13, described electricity-fetching module 11 includes the current transformer core 112 be set on a bus 111, sample resistance 114 is had access to) between two deliveries that the secondary coil 113 be wound on current transformer core 112 inputs electric energy conditioning module 12(secondary coil 113 after single-pole double-throw relay 115, described electric energy conditioning module 12 includes the rectification circuit 121 be connected with single-pole double-throw relay 115, successively through most advanced and sophisticated leadage circuit 122 after rectification circuit 121, ripple filtering electric capacity 123 selects control module 3 to be connected with after voltage stabilizing circuit 124 with power supply, preferably, intelligent protection module 13 is for protecting high voltage induction power taking power supply 1, described intelligent protection module 13 includes single chip control module 131, single chip control module 131 is connected for the temperature sensor of monitoring most advanced and sophisticated leadage circuit 122 temperature with one, and single chip control module 131 is connected with the control end of single-pole double-throw relay 115, described single chip control module 131 is connected with a RF radio-frequency module 132,
During work, a bus 111 is connected with the alternating current of constant amplitude, will produces alternating magnetic field around circuit, and produce the magnetic flux of alternation on described iron core 112, this magnetic flux will induce the induced current of alternation on described induction coil 113; Induced current becomes electromotive force and exports, at described single-pole double-throw relay 115(JQC-3F on described sample resistance 114) under closed condition, described induced electromotive force becomes pulsating dc voltage after rectification circuit 121 rectification; The spike energy of pulsating direct current, after described most advanced and sophisticated leadage circuit 122, is released by pulsating dc voltage, then can by larger voltage ripple filtering through described filter capacitor 123; Finally, after this voltage is down to predeterminated voltage after voltage stabilizing circuit 124, power supply source selects module 3 to select; When single chip control module 131 is for monitoring the working temperature of most advanced and sophisticated leadage circuit 122, and preset temperature exceeds standard threshold value, recover threshold value and the duration that exceeds standard; After working temperature exceeds standard, described single chip control module 131 disconnects power supply circuits by controlling described single-pole double-throw relay 115, described RF radio-frequency module 32 starts, issue the order of supply unit fault and select control module 3 to power supply, recover after threshold value until the working temperature of described most advanced and sophisticated leadage circuit 122 enters, described single-pole double-throw relay 115 accesses power supply circuits again;
Described solar photovoltaic power 2 includes photovoltaic battery array 21, and described photovoltaic battery array 21 is through charging-discharging controller 22 accumulators 23, and storage battery 23 accesses power supply and selects control module 3 after direct voltage inversion is alternating voltage by inverter 24;
Described power supply selects control module 3 to comprise STM8 single-chip microcomputer, selective relay (HK14F) and AC/DC converter, above-mentioned high voltage induction power taking power supply 1 is connected with load respectively with the power input of solar photovoltaic power 2 after selective relay (HK14F) controlled terminal, the control end of described selective relay is connected with STM8 single-chip microcomputer, two ADC pins of described STM8 single-chip microcomputer are connected with the output of solar photovoltaic power 2 with high voltage induction power taking power supply 1, for monitoring output voltage, the input of described AC/DC converter is connected with load, the alternating voltage that load feedback is returned is first direct voltage by the rectification of AC/DC converter, power to STM8 single-chip microcomputer again, STM8 single-chip microcomputer is also connected with a RF receiver module, for receiving the command signal that RF radio-frequency module 132 sends,
The implementation method that a kind of high voltage induction power supply of the present invention and photo-voltaic power supply switch, described implementation method includes following steps:
Step 1, power taking: carry out high voltage induction power taking and photovoltaic power taking simultaneously;
Step 1A, high voltage induction power taking: utilize current transformer to respond to generation electric current at present from high-pressure side, and control module is selected to input power after its rectifying and wave-filtering;
Step 1B, photovoltaic power taking: utilize photovoltaic electroplax that the photovoltaic electric energy input power obtained is selected control module;
Step 2, selection: the power supply in step 1A and step 1B accesses load respectively after relay, power supply selects the single-chip microcomputer of control module to monitor the supply voltage in step 1A and step 1B, select the high power supply of voltage to be in conducting state, load is powered;
Step 3, protection: a temperature sensor is set in above-mentioned steps 1A temperature detection is carried out to the most advanced and sophisticated leadage circuit in current rectifying and wave filtering circuit; when temperature is too high; the relay on current transformer is cut off by the one-chip computer module be connected with temperature sensor; thus high voltage induction power taking is suspended; and this instruction is sent by RF radio-frequency module; high voltage induction power taking power supply is in closed condition after selecting the single-chip microcomputer in control module to receive by power supply; solar photovoltaic power is in conducting state, thus avoids being burnt the monitoring equipment as load.
In addition, it should be noted that above-mentioned embodiment is only a prioritization scheme of this patent, any change that those skilled in the art does according to above-mentioned design or improvement, all within the protection range of this patent.
Claims (1)
1. the implementation method that switches of a kind of high voltage induction power supply of the present invention and photo-voltaic power supply, is characterized in that: described implementation method includes following steps:
Step 1, power taking: carry out high voltage induction power taking and photovoltaic power taking simultaneously;
Step 1A, high voltage induction power taking: utilize current transformer to respond to generation electric current at present from high-pressure side, and control module is selected to input power after its rectifying and wave-filtering;
Step 1B, photovoltaic power taking: utilize photovoltaic electroplax that the photovoltaic electric energy input power obtained is selected control module;
Step 2, selection: the power supply in step 1A and step 1B accesses load respectively after relay, power supply selects the single-chip microcomputer of control module to monitor the supply voltage in step 1A and step 1B, select the high power supply of voltage to be in conducting state, load is powered;
Step 3, protection a: temperature sensor is set in above-mentioned steps 1A temperature detection is carried out to the most advanced and sophisticated leadage circuit in current rectifying and wave filtering circuit, when temperature is too high, the relay that current transformer is connected is cut off by the one-chip computer module be connected with temperature sensor, thus high voltage induction power taking is suspended, and signal is sent by RF radio-frequency module, high voltage induction power taking power supply is in closed condition after selecting the single-chip microcomputer in control module to receive this signal by power supply, solar photovoltaic power is in conducting state, thus avoid being burnt the monitoring equipment as load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410469301.9A CN104269916A (en) | 2014-09-16 | 2014-09-16 | Method for achieving switching between high-voltage induction power supply and photovoltaic power supply |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410469301.9A CN104269916A (en) | 2014-09-16 | 2014-09-16 | Method for achieving switching between high-voltage induction power supply and photovoltaic power supply |
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| CN104269916A true CN104269916A (en) | 2015-01-07 |
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| CN201410469301.9A Pending CN104269916A (en) | 2014-09-16 | 2014-09-16 | Method for achieving switching between high-voltage induction power supply and photovoltaic power supply |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105429312A (en) * | 2016-01-06 | 2016-03-23 | 陈威宇 | Tunnel internal induction power-drawing apparatus |
| CN105738681A (en) * | 2016-04-14 | 2016-07-06 | 中铁二院工程集团有限责任公司 | Live-line indicating device and method for power line |
| CN107787471A (en) * | 2015-06-26 | 2018-03-09 | 亚马逊技术股份有限公司 | For the relay architecture shifted from redundant power |
| CN108404423A (en) * | 2018-04-18 | 2018-08-17 | 深圳市沃特沃德股份有限公司 | Down toy temprature control method and primary processor |
| CN109347550A (en) * | 2018-09-29 | 2019-02-15 | 国家电网有限公司 | Based on optical channel intelligent switching system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787471A (en) * | 2015-06-26 | 2018-03-09 | 亚马逊技术股份有限公司 | For the relay architecture shifted from redundant power |
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| CN108404423A (en) * | 2018-04-18 | 2018-08-17 | 深圳市沃特沃德股份有限公司 | Down toy temprature control method and primary processor |
| CN109347550A (en) * | 2018-09-29 | 2019-02-15 | 国家电网有限公司 | Based on optical channel intelligent switching system |
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Application publication date: 20150107 |
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