CN115549275A - Working method of high-voltage transformer - Google Patents
Working method of high-voltage transformer Download PDFInfo
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- CN115549275A CN115549275A CN202211269906.4A CN202211269906A CN115549275A CN 115549275 A CN115549275 A CN 115549275A CN 202211269906 A CN202211269906 A CN 202211269906A CN 115549275 A CN115549275 A CN 115549275A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000012545 processing Methods 0.000 claims abstract description 51
- 230000005611 electricity Effects 0.000 claims abstract description 11
- 238000012544 monitoring process Methods 0.000 claims description 19
- 239000003990 capacitor Substances 0.000 claims description 13
- 239000011521 glass Substances 0.000 description 14
- 238000010248 power generation Methods 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/30—Circuit arrangements or systems for wireless supply or distribution of electric power using light, e.g. lasers
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
- H02S40/22—Light-reflecting or light-concentrating means
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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 discloses a working method of a high-voltage transformer, when the current in a primary circuit is normal, an energy-taking coil is adopted to directly take electricity from the primary circuit, and the electricity is used by a high-voltage side signal processing unit; when the current in the primary circuit is lower than a normal value, the electric energy obtained by the energy-taking coil and the electric energy generated by the laser are supplied to the high-voltage side signal processing unit together in a mode of combining the energy-taking coil and the power supply of the laser; when the current in the primary circuit is far lower than a normal value, the mode of combining the energy-taking coil and the power supply of the laser is adopted, and the electric energy obtained by the energy-taking coil and the electric energy generated by the laser are jointly supplied to the high-voltage side signal processing unit for use; the invention solves the problem of continuous and stable energy supply to the high-voltage electronic transformer in the prior art.
Description
Technical Field
The invention belongs to the field of transformers, and particularly relates to a working method of a high-voltage transformer.
Background
Electronic transformer is electric power system core sensor, is the electric energy measurement, the protection of power equipment, circuit, the core components and parts of electric wire netting quality evaluation, and laser energy supply and bus current energy-taking combination scheme are generally adopted to present high-voltage electronic transformer high-pressure side acquisition unit power supply scheme: when the primary current is large, the energy-taking coil takes electricity from a primary circuit to supply energy; when the primary current is small, the laser provides power, and the two power supply modes are seamlessly switched.
In the prior art, when primary current is small, the primary current is generally directly switched to laser energy supply, and the photovoltaic panel is irradiated by laser to generate electricity; however, the longer the laser power is, the shorter the lifetime is, and if the laser is operated for a long time in a state where the driving current ratio is large, the working lifetime is rapidly reduced due to aging of the laser diode. At present, the service life of a laser used by each factory in China is usually about 2 ten thousand hours, and the requirement of a power system on a transformer is far from being met; and the energy of the laser cannot be too high due to the limitation of the energy density of the photovoltaic power generation system, otherwise, the photoelectric device can be burnt.
The efficiency and the service life of the optical devices such as the laser and the photocell are closely related to the working temperature, the conversion efficiency of the photocell and the laser power supply is reduced along with the increase of the temperature, and the laser irradiation photocell generates a temperature rise effect, so that the temperature is increased and the working performance of the cell is changed, thereby reducing the photoelectric conversion efficiency; therefore, besides the necessary heat dissipation design for these expensive devices, it is an extremely important step to control the operating current, which will fundamentally reduce the system heat.
Secondly, in the mutual inductor in the prior art, light emitted by a laser is transmitted through an optical fiber which is a point light source, theoretically, a high-energy laser beam can be provided, but the energy density of a photoelectric conversion device is limited, the energy of the laser beam cannot be too high, otherwise, the photoelectric device can be burnt, and therefore the optical fiber is difficult to obtain enough energy for energy supply.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides an energy supply device of a high-voltage transformer.
A working method of a high-voltage transformer comprises the following steps:
s1: monitoring the temperature of the laser and the current of a primary circuit in real time;
s2: when the current in the primary circuit is normal, the temperature of the laser only sends a monitoring platform prompt, and the laser does not work;
s3: when the current in the primary circuit is 0, if the temperature of the laser is normal, the power of the laser is not adjusted;
s4: when the current in the primary circuit is 0, if the temperature of the laser exceeds a normal temperature threshold value, the laser is made to be at a first power level;
s5: when the current in the primary circuit is far lower than a normal value, a mode of combining primary circuit power taking and laser power supply is adopted, and if the temperature of the laser does not exceed a normal temperature threshold value, the laser is enabled to be in three-gear power;
s6: when the current in the primary circuit is lower than a normal value, the primary circuit is used for taking electricity and supplying power to the laser, and if the temperature of the laser exceeds a normal temperature threshold value, the laser is made to be in a second-gear power.
The third gear power is larger than the first gear power, and the first gear power is larger than the second gear power.
The high-voltage transformer comprises a high-voltage side and a low-voltage side.
The high-voltage transformer further comprises a power control module, the power control module is located on the low-voltage side, current signals of the primary circuit are obtained from the low-voltage side, the power control module is powered by the low-voltage side, and the power control module comprises a temperature processing circuit and a power adjusting circuit.
The temperature processing circuit comprises a resistor R2, one end of the resistor R2 is connected with an out pin of a temperature sensor U1, the other end of the resistor R2 is respectively connected with a non-inverting end of an operational amplifier U4A, an anode of a thyristor Q2 and an inverting end of the operational amplifier U4A are connected with one end of a resistor R3, the other end of the resistor R3 is respectively connected with a VCC pin of the temperature sensor U1, one end of a relay K1, one end of the switch S1 is connected with a positive power supply VCC, an output end of the operational amplifier U4A is respectively connected with an anode of a diode D6 and an input end of a NOT gate U3D, a cathode of the diode D6 is connected with a base electrode of a triode Q3, a collector electrode of the triode Q3 is connected with the other end of the relay K1, an emitter electrode of the triode Q3 is connected with one end of the resistor R6, an output end of the NOT gate U3D 5 is connected with an anode of a diode D5, a cathode of the diode D5 is respectively connected with a control electrode of the thyristor Q2, one end of a capacitor C2, a cathode of the capacitor C2 is connected with one end of the switch S2 and a ground pin of the thyristor U1.
The power adjusting circuit comprises a resistor R1, one end of the resistor R1 is connected with one end of a switch S6, the other end of the switch S6 is connected with a current signal, the other end of the resistor R1 is respectively connected with one end of a switch S4, the negative electrode of a voltage regulator tube D1, one end of a resistor R13, the base electrode of a triode Q1 and the positive electrode of a diode D2, the other end of the resistor R13 is respectively connected with the emitting electrode of the triode Q1 and the other end of the switch S1 in the temperature processing circuit, the positive electrode of the voltage regulator tube D1 is respectively connected with one end of a capacitor C1, one end of a relay K2, the control electrode of a thyristor Q6 and a pin 1 of an AND gate U2A, a pin 16 of the AND gate U2A is connected with the cathode of the thyristor Q6, the positive electrode of the thyristor Q6 is respectively connected with the base electrode of a triode Q3 in the temperature processing circuit and the negative electrode of the diode D6, the output end of the AND gate U2A is respectively connected with the anode of a diode D4 and the other end of a switch S2 in the temperature processing circuit, the cathode of the diode D4 is respectively connected with the anode of a diode D7, the cathode of a diode D3 and the monitoring platform, the anode of the diode D7 is respectively connected with one end of a switch S3 and 2 pins of a laser 7, the other end of the switch S3 is respectively connected with the cathode of the diode D2 and one end of a relay K3, 1 pin of the laser 7 is connected with one end of a switch S5, the other end of the switch S5 is respectively connected with one end of a resistor R4 and the anode of the diode D3, the other end of the resistor R4 is connected with the collector of a triode Q1, the other end of the relay K3 is respectively connected with the other end of the relay K2, the other end of a capacitor C1 and the other end of a resistor R6 in the temperature processing circuit and is connected with the ground in parallel.
In conclusion, the beneficial effects of the invention are as follows:
(1) Light that the laser instrument sent propagates through glass post and concave lens in this application, the glass post has played insulating effect on the one hand, in addition, the glass post can be adjusted its shape and diameter according to the mounting dimension and the power of mutual-inductor, the power of laser instrument can be accomplished very greatly, light that the laser instrument sent carries out the total reflection in the glass post, the even conducts the light source for photovoltaic power generation system, compare the optic fibre propagation in prior art, the power of laser instrument can show in this application and improve, and then the power of mutual-inductor also can improve by a wide margin.
(2) The light guide glass column can be curved according to conditions, can ensure that the light energy of the laser is vertically transmitted to a photovoltaic panel of a photovoltaic power generation system, and can not be influenced by the installation position.
(3) The power control module is arranged for the mutual inductor and comprises the temperature processing circuit and the power adjusting circuit, so that the problems that the efficiency and the service life of optical devices such as a laser and a photocell are reduced due to higher temperature in the actual use process, and the reliable and stable operation of an energy supply system cannot be maintained due to the influence of the ambient temperature on the conversion efficiency of the photocell and the output efficiency of a laser power supply are solved, and the reduction of the photoelectric conversion efficiency of the photocell is also avoided;
(4) The temperature processing circuit is used for detecting the ambient temperature of the laser, so that whether the power adjusting circuit is started or not is judged, the current of the high-voltage side of the mutual inductor is judged by the power adjusting circuit, accordingly, the power of the laser is adjusted, the minimum system operation of the signal processing of the high-voltage side of the mutual inductor can be maintained, the influence on the power supply of the mutual inductor is avoided, and the stable operation of the mutual inductor is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the system of the present invention;
FIG. 3 is a schematic circuit diagram of the temperature processing circuit of the present invention;
fig. 4 is a schematic circuit diagram of a power regulation circuit of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution of an energy supply device for a high-voltage transformer:
the utility model provides a high-voltage transformer energy supply device, high-voltage transformer includes high pressure side 1 and low pressure side 11, energy supply device includes photovoltaic power generation system 2, light shields cover 3, umbrella-shaped insulating resin cover 5, leaded light glass post 6, laser instrument 7, light source shields cover 8, umbrella-shaped insulating resin cover 5 one end is connected the other end with light shields cover 3 and is connected with light source shields cover 8, laser instrument 7 sets up in light source shields cover 8, umbrella-shaped insulating resin cover 5 cladding is in leaded light glass post 6 week side, photovoltaic power generation system 2 sets up the tip of keeping away from umbrella-shaped insulating resin cover 5 at light shields cover 3, leaded light glass post 6 can select crooked or linear type according to the equipment fixing condition, laser instrument 7 is supplied power by low pressure side 11, the light beam that laser instrument 7 sent transmits to photovoltaic power generation system 2 behind leaded light glass post 6, photovoltaic power generation system 2 converts light energy into the signal processing unit energy supply for the mutual-inductor high pressure side behind the electric energy.
The light shielding cover 3 is in a conical tubular shape, one end with a smaller diameter is connected with the umbrella-shaped insulating resin cover 5, one end with a larger diameter is abutted to the photovoltaic panel of the photovoltaic power generation system 2, the end with the smaller diameter of the light shielding cover 3 is provided with an optical lens, the optical lens is a concave lens 4 in the embodiment, and the concave lens 4 and the convex lens can be combined according to the light divergence angle and direction in other embodiments.
The light guide glass column 6 may be a remaining high light-transmitting medium, such as acrylic.
The working principle is as follows: after the laser 7 powered by the low-voltage side 11 is transmitted through the light guide glass column 6 and the optical lens, light irradiates on a photovoltaic panel of the photovoltaic power generation system 2, the photovoltaic panel converts light energy into electric energy, and the generated electric energy is powered by a signal processing unit on the high-voltage side of the mutual inductor.
The laser 7 irradiates the concave lens 4 through the internal total reflection path of the light guide glass column 6, expands the light beam of a diffused light source or a parallel laser source through the concave lens, and uniformly irradiates the photoelectric conversion device. The cross section of the light guide glass column 6 is adjusted by the power of the laser 7, so that the energy of the light source reaching the photoelectric conversion device meets the use requirement of the mutual inductor. The total reflection path is determined by the shape of the light guide glass column 6, can be randomly adjusted according to the installation position, does not need to keep a linear shape, and is convenient for flexible assembly.
As shown in fig. 2, further, in order to control the heat generation of the whole system, the transformer of the present application further includes a power control module 9, where the power control module 9 is located on the low-voltage side 11, obtains a current signal of the primary line from the low-voltage side signal processing unit, and the power control module 9 is powered by the low-voltage side power supply. The power control module 9 includes a temperature processing circuit and a power adjusting circuit.
As shown in fig. 3, the temperature processing circuit detects a temperature signal of the laser by using a temperature sensor U1, where the temperature sensor U1 may perform temperature detection by using an infrared temperature sensor, the detected temperature signal is transmitted to an operational amplifier U4A through a resistor R2 to be compared with a temperature upper limit signal provided by the resistor R3, when a level output by the operational amplifier U4A turns on a diode D6, it indicates that the temperature of the laser is too high and exceeds the temperature upper limit of the laser, at this time, intervention needs to be performed on the power of the laser, the diode D6 turns on a triode Q3, the triode Q3 turns on a switch S1 through a relay K1, so that the switch S2 is turned off, and at this time, the power adjusting circuit is started; and when the level output by the operational amplifier U4A is conducted with the diode D5 through the NOT gate U3D, the temperature on the laser does not exceed the upper temperature limit value at the moment, the power of the laser does not need to be interfered at the moment, the diode D5 is conducted with the thyristor Q2 through the capacitor C2, the thyristor Q2 outputs the temperature signal at the moment to the monitoring platform through the closed switch S2 and the diode D4, so that the monitoring platform monitors the temperature of the laser, and after the switch S2 is disconnected, the temperature signal stops being sent to the power adjusting circuit.
The temperature processing circuit comprises a resistor R2, one end of the resistor R2 is connected with an out pin of a temperature sensor U1, the other end of the resistor R2 is respectively connected with a non-inverting end of a power amplifier U4A, an anode of a thyristor Q2 and an inverting end of the power amplifier U4A are connected with one end of a resistor R3, the other end of the resistor R3 is respectively connected with a VCC pin of the temperature sensor U1, one end of a relay K1 is connected with one end of a switch S1 and a positive power VCC, an output end of the power amplifier U4A is respectively connected with an anode of a diode D6 and an input end of a NOT gate U3D, a cathode of the diode D6 is connected with a base electrode of a triode Q3, a collector electrode of the triode Q3 is connected with the other end of the relay K1, an emitter electrode of the triode Q3 is connected with one end of the resistor R6, an output end of the NOT gate U3D is connected with an anode of a diode D5, a cathode of the diode D5 is respectively connected with a control electrode of the thyristor Q2 and one end of a capacitor C2, a cathode of the thyristor Q2 is connected with one end of the switch S2, and a cathode of the thyristor S6 is connected with one end of the resistor R2, the other end of the resistor R6 is connected with a pin of the temperature sensor U2 and a pin of the temperature sensor U1.
As shown in fig. 4, when the power adjusting circuit is started by the switch S1 in the temperature processing circuit, the switch S6 is controlled by the relay K1 to be closed, and at this time, the power adjusting circuit obtains a current signal of the primary line from the low-voltage side signal processing unit; the current signal is transmitted to a voltage regulator tube D1, a triode Q1 and a diode D2 through a resistor R1 to be judged, when the voltage regulator tube D1 is conducted through the current signal, the high-voltage side of the mutual inductor is provided with large current, because the primary circuit is large current, the mutual inductor obtains electricity from the primary circuit through an energy-obtaining coil to supply power to a high-voltage side signal processing unit, and the laser does not work at this time; meanwhile, the voltage regulator tube D1 conducts the relay K2, the relay K2 enables the switch S4 to be switched off, the diode D2 and the triode Q1 stop judging the amplitude of the current signal, the thyristor Q6 is also closed through the capacitor C1 by the voltage regulator tube D1, the thyristor Q6 transmits the level output by the diode D6 to the AND gate U2A to be subjected to AND operation with the current signal output by the voltage regulator tube D1 and then outputs a reminding signal, and the reminding signal is output to the monitoring platform through the diode D4 to remind the monitoring platform that the temperature of the laser is too high and needs to be noticed or people are dispatched for maintenance at the moment.
When the triode Q1 is conducted by a current signal, the current signal of the high-voltage side of the mutual inductor is weak or even does not exist at the moment, the condition that a primary circuit trips or a load is open-circuited and the like exists, the mutual inductor cannot get electricity from the primary circuit through a coil, the power supply of the high-voltage side signal processing unit is all charged by the laser, at the moment, the laser 7 is required to be in a medium-power running state, the triode Q1 enables the laser 7 to be in a 1-gear position through the resistor R4 and the switch S5, so that the electric energy required by the medium-power maintenance of the minimum system running of the high-voltage side signal processing unit is output, the triode Q1 outputs a first-gear position signal to the monitoring platform through the resistor R4 and the diode D3, the monitoring platform is reminded to adjust the laser 7 to the 1-gear position for the use of the mutual inductor, at the moment, the temperature is higher, and the monitoring platform is reminded that the working environment temperature of the laser at the moment needs to pay attention or send people for maintenance.
The laser adopts medium power, firstly, because the temperature is high, the laser cannot operate at full power, and the medium power operation only keeps the most basic monitoring function of the high-voltage side signal processing unit, so that the power consumption is reduced as much as possible. The laser adopts medium power supply, can make the cooling system of laser dispel the heat as fast as possible for the laser resumes normal operating condition as early as possible.
When the diode D2 is conducted by the current signal, it indicates that the current on the high-voltage side of the transformer is small (but larger than that when the transistor Q1 is conducted), and then a mode of combining primary circuit coil power taking and laser power supply is adopted. Meanwhile, the diode D2 turns on the relay K3, then the relay K3 turns on the switch S3, and turns off the switch S5, that is, the laser 7 is changed to 2 positions, outputs low power, and only maintains the electric energy required by the minimum system operation of the high-voltage side signal processing, and the diode D2 outputs a second position signal to the monitoring platform through the switch S3 and the diode D7, so as to remind that the laser 7 is adjusted to 2 positions for the use of the transformer at this time.
The laser adopts low power, firstly, because the temperature is higher, unable full power operation, and primary circuit has undercurrent moreover, then adopts the primary circuit coil to get the mode that combines with the laser power supply, satisfies the required electric energy of high pressure side signal processing unit through the combination of the two, reduces the power load of laser. Meanwhile, because the primary circuit at the high-voltage side is in a low-current state, the fact that the load in the primary circuit system is unstable or the circuit is unstable is indicated, only the signal processing unit at the high-voltage side is kept to maintain the most basic monitoring function, the power consumption of the signal processing unit at the high-voltage side of the mutual inductor is reduced as much as possible, meanwhile, the laser adopts low-power supply, the heat can be dissipated by the heat dissipation system in the laser as soon as possible, and the laser can be enabled to recover normal work as soon as possible.
The power adjusting circuit comprises a resistor R1, one end of the resistor R1 is connected with one end of a switch S6, the other end of the switch S6 is connected with a current signal, the other end of the resistor R1 is respectively connected with one end of a switch S4, the negative electrode of a voltage-regulator tube D1, one end of a resistor R13, the base electrode of a triode Q1 and the positive electrode of a diode D2, the other end of the resistor R13 is respectively connected with the emitting electrode of the triode Q1 and the other end of the switch S1 in the temperature processing circuit, the positive electrode of the voltage-regulator tube D1 is respectively connected with one end of a capacitor C1, one end of a relay K2, the control electrode of a thyristor Q6, a pin 1 of an AND gate U2A, a pin 16 of the AND gate U2A is connected with the cathode of the thyristor Q6, the anode of the thyristor Q6 is respectively connected with the base electrode of a triode Q3 in the temperature processing circuit and the negative electrode of the diode D6, the output end of the AND gate U2A is respectively connected with the anode of a diode D4 and the other end of a switch S2 in the temperature processing circuit, the cathode of the diode D4 is respectively connected with the anode of a diode D7, the cathode of the diode D3 and the monitoring platform, the anode of the diode D7 is respectively connected with one end of a switch S3 and a pin 2 of a laser 7, the other end of the switch S3 is respectively connected with the cathode of the diode D2 and one end of a relay K3, the pin 1 of the laser 7 is connected with one end of a switch S5, the other end of the switch S5 is respectively connected with one end of a resistor R4 and the anode of the diode D3, the other end of the resistor R4 is connected with the collector of a triode Q1, the other end of the relay K3 is respectively connected with the other end of the relay K2, the other end of a capacitor C1 and the other end of a resistor R6 in the temperature processing circuit and is connected with the ground in parallel.
A working method of a high-voltage transformer comprises the following steps:
s1: monitoring the temperature of the laser and the current of a primary circuit in real time;
s2: when the current in the primary circuit is normal, the temperature of the laser only sends a monitoring platform prompt, and the laser does not work;
s3: when the current in the primary circuit is 0, if the temperature of the laser is normal, the power of the laser is not adjusted;
s4: when the current in the primary circuit is 0, if the temperature of the laser exceeds a normal temperature threshold value, the laser is made to be at a first power level;
s5: when the current in the primary circuit is far lower than a normal value, a mode of combining primary circuit power taking and laser power supply is adopted, and if the temperature of the laser does not exceed a normal temperature threshold value, the laser is made to be in a third-gear power;
s6: when the current in the primary circuit is lower than a normal value, a mode of combining primary circuit power taking and laser power supply is adopted, and if the temperature of the laser exceeds a normal temperature threshold value, the laser is enabled to be in a second-gear power;
the third gear power is larger than the first gear power, and the first gear power is larger than the second gear power.
The high-voltage transformer in the application has the following power supply modes:
when the current in the primary circuit is normal, the energy-taking coil is adopted to directly take the electricity from the primary circuit, and the electricity is used by a high-voltage side signal processing unit;
when the current in the primary circuit is lower than a normal value, the mode of combining the energy-taking coil and the power supply of the laser is adopted, and the electric energy obtained by the energy-taking coil and the electric energy generated by the laser are jointly supplied to the high-voltage side signal processing unit for use;
when the current in the primary circuit is far lower than a normal value, the mode of combining the energy-taking coil and the power supply of the laser is adopted, and the electric energy obtained by the energy-taking coil and the electric energy generated by the laser are jointly supplied to the high-voltage side signal processing unit for use;
in this case, if the temperature of the laser is high after the laser operates for a period of time, the laser operates at a second power level, i.e., at a low power level, and the high-voltage signal processing unit operates at a minimum system, so that power consumption is reduced as much as possible, and the basic functions of the high-voltage signal processing unit are maintained;
when the current in the primary circuit is 0, a laser power supply mode is adopted, and the laser is responsible for all electric energy consumed by the working of the high-voltage side signal processing unit;
in this case, if the temperature of the laser is high after the laser operates for a period of time, the laser operates at a first power level, i.e., at a medium power level, and the high-voltage signal processing unit operates at a minimum system, so that power consumption is reduced as much as possible, and the basic functions of the high-voltage signal processing unit are maintained.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and those skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention with equivalent alternatives or modifications within the scope of the present invention.
Claims (7)
1. A working method of a high-voltage transformer is characterized in that,
s1: monitoring the temperature of the laser and the current of a primary circuit in real time;
s2: when the current in the primary circuit is normal, the temperature of the laser only sends a monitoring platform prompt, and the laser does not work;
s3: when the current in the primary circuit is 0, if the temperature of the laser is normal, the power of the laser is not adjusted;
s4: when the current in the primary circuit is 0, if the temperature of the laser exceeds a normal temperature threshold value, the laser is made to be at a first power level;
s5: when the current in the primary circuit is far lower than a normal value, a mode of combining primary circuit power taking and laser power supply is adopted, and if the temperature of the laser does not exceed a normal temperature threshold value, the laser is enabled to be in three-gear power;
s6: when the current in the primary circuit is lower than a normal value, a mode of combining primary circuit power taking and laser power supply is adopted, and if the temperature of the laser exceeds a normal temperature threshold value, the laser is in second-gear power.
2. The working method of the high-voltage transformer according to claim 1, wherein the third gear power is higher than the first gear power, and the first gear power is higher than the second gear power.
3. The working method of the high-voltage transformer according to claim 1, characterized in that: the high-voltage transformer comprises a high-voltage side (1) and a low-voltage side (11).
4. The working method of the high-voltage transformer according to claim 1, characterized in that: the high-voltage transformer further comprises a power control module (9), the power control module (9) is located on a low-voltage side (11), a current signal of a primary circuit is obtained from the low-voltage side (11), the power control module (9) is powered by the low-voltage side (11), and the power control module (9) comprises a temperature processing circuit and a power adjusting circuit.
5. The working method of the high-voltage transformer according to claim 4, characterized in that: the temperature processing circuit comprises a resistor R2, one end of the resistor R2 is connected with an out pin of a temperature sensor U1, the other end of the resistor R2 is respectively connected with a non-inverting end of an operational amplifier U4A, an anode of a thyristor Q2 and an inverting end of the operational amplifier U4A are connected with one end of a resistor R3, the other end of the resistor R3 is respectively connected with a VCC pin of the temperature sensor U1, one end of a relay K1, one end of the switch S1 is connected with a positive power supply VCC, an output end of the operational amplifier U4A is respectively connected with an anode of a diode D6 and an input end of a NOT gate U3D, a cathode of the diode D6 is connected with a base electrode of a triode Q3, a collector electrode of the triode Q3 is connected with the other end of the relay K1, an emitter electrode of the triode Q3 is connected with one end of the resistor R6, an output end of the NOT gate U3D 5 is connected with an anode of a diode D5, a cathode of the diode D5 is respectively connected with a control electrode of the thyristor Q2, one end of a capacitor C2, a cathode of the capacitor C2 is connected with one end of the switch S2 and a ground pin of the thyristor U1.
6. The working method of the high-voltage transformer according to claim 4, characterized in that: the power adjusting circuit comprises a resistor R1, one end of the resistor R1 is connected with one end of a switch S6, the other end of the switch S6 is connected with a current signal, the other end of the resistor R1 is respectively connected with one end of a switch S4, the negative electrode of a voltage regulator tube D1, one end of a resistor R13, the base electrode of a triode Q1 and the positive electrode of a diode D2, the other end of the resistor R13 is respectively connected with the emitting electrode of the triode Q1 and the other end of the switch S1 in the temperature processing circuit, the positive electrode of the voltage regulator tube D1 is respectively connected with one end of a capacitor C1, one end of a relay K2, the control electrode of a thyristor Q6 and a pin 1 of an AND gate U2A, a pin 16 of the AND gate U2A is connected with the cathode of the thyristor Q6, the positive electrode of the thyristor Q6 is respectively connected with the base electrode of a triode Q3 in the temperature processing circuit and the negative electrode of the diode D6, the output end of the AND gate U2A is respectively connected with the anode of a diode D4 and the other end of a switch S2 in the temperature processing circuit, the cathode of the diode D4 is respectively connected with the anode of a diode D7, the cathode of the diode D3 and the monitoring platform, the anode of the diode D7 is respectively connected with one end of a switch S3 and a pin 2 of a laser (7), the other end of the switch S3 is respectively connected with the cathode of the diode D2 and one end of a relay K3, the pin 1 of the laser (7) is connected with one end of a switch S5, the other end of the switch S5 is respectively connected with one end of a resistor R4 and the anode of the diode D3, the other end of the resistor R4 is connected with the collector of a triode Q1, the other end of the relay K3 is respectively connected with the other end of the relay K2, the other end of a capacitor C1 and the other end of a resistor R6 in the temperature processing circuit and connected with the ground in parallel.
7. A high-voltage transformer energy supply method comprises the following steps:
when the current in the primary circuit is normal, the energy-taking coil is adopted to directly take the electricity from the primary circuit, and the electricity is used by a high-voltage side signal processing unit;
when the current in the primary circuit is lower than a normal value, the electric energy obtained by the energy-taking coil and the electric energy generated by the laser are supplied to the high-voltage side signal processing unit together in a mode of combining the energy-taking coil and the power supply of the laser;
when the current in the primary circuit is far lower than a normal value, the mode of combining the energy-taking coil and the power supply of the laser is adopted, and the electric energy obtained by the energy-taking coil and the electric energy generated by the laser are jointly supplied to the high-voltage side signal processing unit for use;
when the current in the primary line is 0, a laser power supply mode is adopted, and the laser is responsible for all electric energy consumed by the work of the high-voltage side signal processing unit.
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| CN101399465B (en) * | 2008-11-11 | 2010-12-22 | 武汉长江光网通信有限责任公司 | Laser energy supply device |
| CN201804700U (en) * | 2010-08-24 | 2011-04-20 | 河南电力试验研究院 | Laser energy supply-based electronic current transformer |
| KR101244406B1 (en) * | 2011-11-07 | 2013-03-18 | 한국전력기술 주식회사 | Photovoltaic power generation system |
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