CN117411324A - Power transformer integrated calibrating device power supply and control method thereof - Google Patents
Power transformer integrated calibrating device power supply and control method thereof Download PDFInfo
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- CN117411324A CN117411324A CN202311729240.0A CN202311729240A CN117411324A CN 117411324 A CN117411324 A CN 117411324A CN 202311729240 A CN202311729240 A CN 202311729240A CN 117411324 A CN117411324 A CN 117411324A
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000012937 correction Methods 0.000 claims abstract description 32
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 63
- 238000012795 verification Methods 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 9
- 238000004804 winding Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/14—Arrangements for reducing ripples from dc input or output
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/42—Circuits or arrangements for compensating for or adjusting power factor in converters or inverters
- H02M1/4208—Arrangements for improving power factor of AC input
- H02M1/4266—Arrangements for improving power factor of AC input using passive elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/066—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode particular circuits having a special characteristic
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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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Abstract
The invention relates to a power supply for an integrated calibrating device of a power transformer and a control method thereof, wherein the power supply comprises a power supply unit, a rectifying unit, a power factor correcting unit, a direct current filtering unit and a voltage reduction output unit; the power taking unit is used for obtaining electric energy, and the output end of the power taking unit is connected with the rectifying unit; the rectifying unit comprises a rectifying bridge D1, and the output end of the rectifying bridge D1 is connected with the power factor correction unit; the output end of the power factor correction unit is connected with the direct current filtering unit; the output end of the direct current filtering unit is connected with the step-down output unit; the power output end of the step-down output unit is connected with the calibrating device. The invention can ensure direct output of direct current through the voltage reduction output unit, and the direct current is not required to be converted into alternating current for voltage reduction and then converted into direct current for output, thereby avoiding energy loss generated in the process of multiple alternating current-direct current conversion in the power supply.
Description
Technical Field
The invention relates to a power supply of an integrated calibrating device of a power transformer and a control method thereof, and belongs to the technical field of power supplies.
Background
The power transformer is used for measuring current and voltage on a high-voltage line, plays an insulating and isolating role so as to ensure the safety of operators and meters, reasonably and accurately tests the power transformer is a key link in the network access requirement of equipment, has important significance for the economic and stable operation of a power grid aiming at the verification method of the power transformer in a power system, eliminates or reduces great harm to the safe and stable operation of the power grid caused by unqualified equipment, and avoids the loss caused by the damage, thereby ensuring the safe and stable operation of the power grid.
However, when the conventional transformer verification device verifies the power transformer, the power supply is also required to supply energy for the operation of the device. In the prior art, the patent application with publication number CN109660018A discloses a power transmission line induction power taking device based on Rogowski coil, and the patent application with publication number CN114389371A discloses a capacitive high-voltage self-power taking power supply and measurement integrated device which are all 220V mains supply. The utility power has many problems, such as: because the instability of the power transmission line self causes fluctuation of current operation of the mains supply, stable working electricity is difficult to provide for loads in the verification device, when the mains supply flows through the transformer verification device, the loads in the transformer verification device cannot obtain enough electric energy, so that insufficient power supply is caused, and when the mains supply current is overlarge, the transformer verification device can bear overlarge current or voltage, so that the loads in the transformer verification device are impacted, and the transformer verification device is easy to burn.
Disclosure of Invention
In order to overcome the problems, the invention provides an electric power supply for an integrated calibrating device of an electric power transformer and a control method thereof, wherein the electric power supply can ensure direct output of direct current through a voltage reduction output unit, and the direct current is not required to be converted into alternating current to be reduced and then converted into direct current to be output, so that energy loss generated in the process of multiple alternating current-direct current conversion in the electric power supply is avoided.
The technical scheme of the invention is as follows:
first aspect
The power transformer integrated calibrating device power supply comprises a power supply unit, a rectifying unit, a power factor correcting unit, a direct current filtering unit and a voltage reduction output unit;
the power taking unit is used for obtaining electric energy, and the output end of the power taking unit is connected with the rectifying unit;
the rectifying unit comprises a rectifying bridge D 1 The rectifier bridge D 1 The output end of the power factor correction unit is connected with the power factor correction unit;
the output end of the power factor correction unit is connected with the direct current filtering unit;
the direct current filter unit comprises a capacitor C 1 And inductance L 1 The capacitor C 1 The capacitor C is connected in parallel with the output end of the power factor correction unit 1 And the inductance L 1 Is connected in parallel with the input end of the inductor L 1 The output end of the voltage reducing output unit is connected with the voltage reducing output unit;
the step-down output unit comprises a capacitor C 5 Capacitance C 6 Capacitance C 9 Capacitance C 10 Inductance L 3 Inductance L 4 Transformer L 5 And switch S 1 、S 2 、S 3 And S is 4 The method comprises the steps of carrying out a first treatment on the surface of the The capacitor C 5 The output end of the direct current filter unit is connected in parallel; switch S after serial connection in turn 1 Inductance L 3 And switch S 2 And the capacitor C 5 Parallel connection; the transformer L 5 One end of the primary coil of (C) passes through the capacitor C 9 Is connected to the switch S 1 And the inductance L 3 The other end is directly connected with the switch S 2 And the capacitor C 5 Is connected with the connecting part of the connecting part; switch S after serial connection in turn 3 Inductance L 4 And switch S 4 And the capacitor C 6 Parallel connection; the transformer L 5 Through the capacitor C 10 Is connected to the switch S 3 And the inductance L 4 The other end is directly connected with the switch S 4 And the capacitor C 6 Is connected with the connecting part of the connecting part;
the capacitor C 6 And the two ends of the power supply are used as power supply output ends to be connected with the calibrating device.
Further, the inductance L 1 Is a common mode inductance.
Further, the spiral directions of the primary side coil and the secondary side coil of the inductor are opposite, and the number of turns of the primary side coil and the secondary side coil are the same.
Further, the capacitor C 9 And capacitor C 10 Is the same.
Further, the electricity taking unit is an electricity taking transformer, the primary side of the electricity taking transformer is lapped on a mains supply line to obtain electric energy, and the secondary side of the electricity taking transformer is connected with the rectifying unit.
Further, the rectifier bridge D 1 Comprising a diode A 1 、A 2 、A 3 And A 4 Diode A 1 Anode and diode a of (2) 2 Cathode connection of diode A 3 Anode and diode a of (2) 4 Is connected with the cathode of the battery; diode A 1 And diode A 3 A cathode of the power factor correction unit is connected with an input end of the power factor correction unit, a diode A 2 And diode A 4 The anode of the power factor correction unit is connected with the other input end of the power factor correction unit; an output end of the power taking unit and the diode A 1 The other output end is connected with the anode of the diode A 3 Is connected to the anode of the battery.
Further, the power factor correction unit comprises an inductor L 2 Capacitance C 7 And capacitor C 8 The method comprises the steps of carrying out a first treatment on the surface of the The inductance L 2 Said capacitor C 7 And the capacitor C 8 The capacitor C is connected in parallel with the output end of the rectifying unit after being connected in series in sequence 7 And the capacitor C 8 And the input end of the direct current filter unit is connected in parallel.
Second aspect
The power transformer integrated calibrating device power-taking power supply control method comprises the following steps of:
s1, control switch S 1 And switch S 4 Conduction and switch S 2 And switch S 3 Off, duration T 1 Step S2 is executed;
s2, control switch S 2 And switch S 3 Conduction and switch S 1 And switch S 4 Off, duration T 2 Step S1 is performed.
Further, time T 1 And time T 2 Equal.
The invention has the following beneficial effects:
1. the book is provided withThe invention is realized by controlling the switch S 1 、S 2 、S 3 And S is 4 The direct current energy after filtering forms direct current pulse because of the switching of the switch, thereby being directly output through the voltage reduction output unit without converting the direct current into alternating current to be reduced and then converted into direct current to be output, and avoiding the energy loss generated in the process of multiple times of alternating current-direct current conversion in the power supply.
2. The invention ensures the stable and reliable power supply of the calibrating device through the double voltage stabilization guarantee of the direct current filtering unit and the voltage reduction output unit, can stably supply power no matter how the commercial power changes, and ensures the accuracy of power detection.
3. The step-down output unit can enable the voltage from the high voltage side to the low voltage side to be free from the influence of external loads, and keep stable.
4. The direct current filter circuit can control direct current in a closed loop, so as to avoid impurity current dissipated by alternating current in a total input circuit and electromagnetic interference generated by the current.
Drawings
Fig. 1 is a circuit diagram of a power supply according to an embodiment of the invention.
Detailed Description
The invention will now be described in detail with reference to the drawings and to specific embodiments.
First aspect
Referring to fig. 1, a power transformer integrated calibrating device power supply comprises a power supply unit, a rectifying unit, a power factor correcting unit, a direct current filtering unit and a voltage reduction output unit;
the power taking unit is used for obtaining electric energy, and the output end of the power taking unit is connected with the rectifying unit;
the rectifying unit comprises a rectifying bridge D 1 The rectifier bridge D 1 The output end of the power factor correction unit is connected with the power factor correction unit;
the output end of the power factor correction unit is connected with the direct current filtering unit;
the direct current filter unit comprises a capacitor C 1 And inductanceL 1 The capacitor C 1 The capacitor C is connected in parallel with the output end of the power factor correction unit 1 And the inductance L 1 Is connected in parallel with the input end of the inductor L 1 The output end of the voltage reducing output unit is connected with the voltage reducing output unit; through capacitor C 1 And inductance L 1 The ripple wave in the direct current is reduced, and the interference caused by fluctuation of the mains supply can be effectively removed.
The step-down output unit comprises a capacitor C 5 Capacitance C 6 Capacitance C 9 Capacitance C 10 Inductance L 3 Inductance L 4 Transformer L 5 And switch S 1 、S 2 、S 3 And S is 4 The method comprises the steps of carrying out a first treatment on the surface of the The capacitor C 5 The output end of the direct current filter unit is connected in parallel; switch S after serial connection in turn 1 Inductance L 3 And switch S 2 And the capacitor C 5 Parallel connection; the transformer L 5 One end of the primary coil of (C) passes through the capacitor C 9 Is connected to the switch S 1 And the inductance L 3 The other end is directly connected with the switch S 2 And the capacitor C 5 Is connected with the connecting part of the connecting part; switch S after serial connection in turn 3 Inductance L 4 And switch S 4 And the capacitor C 6 Parallel connection; the transformer L 5 Through the capacitor C 10 Is connected to the switch S 3 And the inductance L 4 The other end is directly connected with the switch S 4 And the capacitor C 6 Is connected with the connecting part of the connecting part;
the capacitor C 6 And the two ends of the power supply are used as power supply output ends to be connected with the calibrating device.
The step-down output unit can enable direct current to directly pass through the transformer L 5 And outputting, namely converting direct current into alternating current, reducing voltage and finally converting the alternating current into direct current for outputting.
Through the dual voltage stabilization guarantee of direct current filter unit and step-down output unit for calibrating installation's power is reliable and stable, no matter how the commercial power changes, can stable power supply, guarantees the accuracy of electric power detection.
In one embodiment of the invention, the inductance L 1 Is a common mode inductance.
In one embodiment of the present invention, the primary winding and the secondary winding of the inductor are wound in opposite spiral directions, and the number of turns of the primary winding and the secondary winding are the same.
When the power factor of the circuit is increased by the power factor correction unit, the output ripple of the output current is larger, and the capacitor C of the direct current filtering unit 1 And inductance L 1 Ripple in the direct current can be reduced.
In one embodiment of the invention, the capacitor C 9 And capacitor C 10 Is the same. At this time, the capacitance C 9 Capacitance C 10 And a transformer L 5 Takes part in current resonance, and voltage is stabilized by capacitor C 6 Maintaining the voltage from the high voltage side to the low voltage side without being influenced by external load, without counting the transformer L 5 Capacitor C in case of voltage loss of (a) 6 Voltage and capacitance C of the output 5 Ratio of voltage input to transformer L 5 The turns ratio of the coils is the same, and the output stability in the voltage dropping process is ensured. Setting different transformers L 5 Coil turns ratio, capacitance C 6 The output of 24V direct current or 12V direct current can be used for meeting the inspection requirement.
In one embodiment of the invention, the electricity taking unit is an electricity taking transformer, the primary side of the electricity taking transformer is lapped on a commercial power line to obtain electric energy, and the secondary side of the electricity taking transformer is connected with the rectifying unit. When the inductance L 1 When the primary side and the secondary side of the circuit have current to pass, the impedance difference of the two loops is 0, so that the direct current can be well controlled in the closed loop, the impurity-contained current dissipated by the alternating current in the total input circuit is avoided, and the electromagnetic interference generated by the current can be avoided.
In one embodiment of the invention, the rectifier bridge D 1 Comprising a diode A 1 、A 2 、A 3 And A 4 Diode A 1 Anode and diode a of (2) 2 Cathode connection of (2)Diode A 3 Anode and diode a of (2) 4 Is connected with the cathode of the battery; diode A 1 And diode A 3 A cathode of the power factor correction unit is connected with an input end of the power factor correction unit, a diode A 2 And diode A 4 The anode of the power factor correction unit is connected with the other input end of the power factor correction unit; an output end of the power taking unit and the diode A 1 The other output end is connected with the anode of the diode A 3 Is connected to the anode of the battery.
In one embodiment of the present invention, the power factor correction unit includes an inductance L 2 Capacitance C 7 And capacitor C 8 The method comprises the steps of carrying out a first treatment on the surface of the The inductance L 2 Said capacitor C 7 And the capacitor C 8 The capacitor C is connected in parallel with the output end of the rectifying unit after being connected in series in sequence 7 And the capacitor C 8 And the input end of the direct current filter unit is connected in parallel.
Inductance L 2 Capacitance C 7 And capacitor C 8 The power factor correction unit can have the effect of inhibiting instantaneous abrupt change of current, and can improve the power factor of the circuit. But the output ripple of the output current is larger at this time, the capacitance C 7 And capacitor C 8 The direct current at both ends is also distorted. Thus requiring a dc filtering unit for filtering.
Second aspect
Referring to fig. 1, a power transformer integrated calibrating device power supply control method, by controlling a power transformer integrated calibrating device power supply to output electric energy, includes the following steps:
s1, control switch S 1 And switch S 4 Conduction and switch S 2 And switch S 3 Off, duration T 1 Step S2 is executed;
s2, control switch S 2 And switch S 3 Conduction and switch S 1 And switch S 4 Off, duration T 2 Step S1 is performed.
When executing step S1, the current flows through S 1 、C 9 、L 5 、C 10 、L 4 、S 4 Output through C 6 Maintaining the voltage stable. When executing step S2, S 2 、L 3 、C 9 、L 5 、C 10 、S 3 Output through C 6 Maintaining the voltage stable. S is S 1 、S 4 、S 2 、S 3 Can be controlled by a controller to control L 5 In order to ensure that the DC power is supplied in pulses from L 5 The direct current after being purified by the rectifying unit, the power factor correcting unit and the direct current filtering unit can directly pass through L 5 The output current is stable and pure.
In one embodiment of the invention, time T 1 And time T 2 Equal.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures made by the description of the invention and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the invention.
Claims (9)
1. The utility model provides a power transformer integration calibrating installation gets electric power supply which characterized in that, including getting electric unit, rectification unit, power factor correction unit, direct current filter unit and step-down output unit:
the power taking unit is used for obtaining electric energy, and the output end of the power taking unit is connected with the rectifying unit;
the rectifying unit comprises a rectifying bridge D 1 The rectifier bridge D 1 The output end of the power factor correction unit is connected with the power factor correction unit;
the output end of the power factor correction unit is connected with the direct current filtering unit;
the direct current filter unit comprises a capacitor C 1 And inductance L 1 The capacitor C 1 The capacitor C is connected in parallel with the output end of the power factor correction unit 1 And the inductance L 1 Is connected in parallel with the input end of the inductorL 1 The output end of the voltage reducing output unit is connected with the voltage reducing output unit;
the step-down output unit comprises a capacitor C 5 Capacitance C 6 Capacitance C 9 Capacitance C 10 Inductance L 3 Inductance L 4 Transformer L 5 And switch S 1 、S 2 、S 3 And S is 4 The method comprises the steps of carrying out a first treatment on the surface of the The capacitor C 5 The output end of the direct current filter unit is connected in parallel; switch S after serial connection in turn 1 Inductance L 3 And switch S 2 And the capacitor C 5 Parallel connection; the transformer L 5 One end of the primary coil of (C) passes through the capacitor C 9 Is connected to the switch S 1 And the inductance L 3 The other end is directly connected with the switch S 2 And the capacitor C 5 Is connected with the connecting part of the connecting part; switch S after serial connection in turn 3 Inductance L 4 And switch S 4 And the capacitor C 6 Parallel connection; the transformer L 5 Through the capacitor C 10 Is connected to the switch S 3 And the inductance L 4 The other end is directly connected with the switch S 4 And the capacitor C 6 Is connected with the connecting part of the connecting part;
the capacitor C 6 And the two ends of the power supply are used as power supply output ends to be connected with the calibrating device.
2. The power transformer integrated verification device power supply according to claim 1, wherein the inductance L 1 Is a common mode inductance.
3. The power supply for the integrated verification device of the power transformer according to claim 2, wherein the primary coil and the secondary coil of the inductor are wound in opposite spiral directions, and the number of turns of the primary coil and the secondary coil is the same.
4. The power transformer integrated verification device power supply according to claim 1, wherein the capacitor C 9 And capacitor C 10 Parameters of (2)The same applies.
5. The power transformer integrated calibrating device according to claim 1, wherein the power transformer is a power transformer, a primary side of the power transformer is lapped on a mains line to obtain electric energy, and a secondary side of the power transformer is connected with the rectifying unit.
6. The power transformer integrated verification device power supply according to claim 1, wherein the rectifier bridge D 1 Comprising a diode A 1 、A 2 、A 3 And A 4 Diode A 1 Anode and diode a of (2) 2 Cathode connection of diode A 3 Anode and diode a of (2) 4 Is connected with the cathode of the battery; diode A 1 And diode A 3 A cathode of the power factor correction unit is connected with an input end of the power factor correction unit, a diode A 2 And diode A 4 The anode of the power factor correction unit is connected with the other input end of the power factor correction unit; an output end of the power taking unit and the diode A 1 The other output end is connected with the anode of the diode A 3 Is connected to the anode of the battery.
7. The power transformer integrated verification device power supply according to claim 1, wherein the power factor correction unit comprises an inductance L 2 Capacitance C 7 And capacitor C 8 The method comprises the steps of carrying out a first treatment on the surface of the The inductance L 2 Said capacitor C 7 And the capacitor C 8 The capacitor C is connected in parallel with the output end of the rectifying unit after being connected in series in sequence 7 And the capacitor C 8 And the input end of the direct current filter unit is connected in parallel.
8. A control method for a power supply of an integrated verification device of a power transformer, which is characterized by comprising the following steps of:
s1, control switch S 1 And switch S 4 Conduction and switch S 2 And switch S 3 Off, duration T 1 Step S2 is executed;
s2, control switch S 2 And switch S 3 Conduction and switch S 1 And switch S 4 Off, duration T 2 Step S1 is performed.
9. The method for controlling the power supply of the integrated verification device for the power transformer according to claim 8, wherein the time T is 1 And time T 2 Equal.
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| CN202311729240.0A CN117411324A (en) | 2023-12-15 | 2023-12-15 | Power transformer integrated calibrating device power supply and control method thereof |
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