CN211554142U - Reactor test platform - Google Patents
Reactor test platform Download PDFInfo
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- CN211554142U CN211554142U CN201922251976.7U CN201922251976U CN211554142U CN 211554142 U CN211554142 U CN 211554142U CN 201922251976 U CN201922251976 U CN 201922251976U CN 211554142 U CN211554142 U CN 211554142U
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Abstract
The utility model relates to a reactor test platform, including the return circuit that charges, the return circuit of bleeding, energy storage circuit and discharge circuit, the return circuit of charging is connected with outside electric wire netting, the return circuit of charging is including the adjustable step up transformer of three-phase that connects gradually, diode three-phase rectifier circuit and charging thyristor circuit, the adjustable step up transformer of three-phase connects outside electric wire netting, be equipped with switching device between the adjustable step up transformer of three-phase and the diode three-phase rectifier circuit, diode three-phase rectifier circuit connects charging thyristor circuit, energy storage circuit connects in parallel between charging thyristor circuit and diode three-phase rectifier circuit output negative pole, the return circuit of bleeding is parallelly connected with energy storage circuit, discharge circuit and energy storage circuit are parallelly connected, the inductor. After the structure is adopted, the charging efficiency is high, the current, the output power and the voltage can be adjusted by adjusting the three-phase adjustable step-up transformer and the charging thyristor circuit, and the test requirement of the high-power reactor can be met.
Description
Technical Field
The utility model relates to a reactor test platform field especially relates to a reactor test platform.
Background
With the large number of applications of power reactors in high-power electronic devices and power systems, it is necessary to quickly and accurately test the performance indexes of the reactors. The existing reactor test equipment has the disadvantages of low output power, low voltage, non-adjustable charging current and the like, and is difficult to meet the performance test requirements of a high-power reactor.
SUMMERY OF THE UTILITY MODEL
For solving the prior art problem, the utility model provides a reactor test platform.
The utility model discloses specific content as follows: the utility model provides a reactor test platform, includes charge circuit, bleeder circuit, energy storage circuit and discharge circuit, charge circuit and external electric wire netting are connected, charge circuit including the adjustable step up transformer of three-phase, diode three-phase rectifier circuit and the thyristor circuit that charges that connects gradually, the adjustable step up transformer of three-phase connects external electric wire netting, be equipped with switching device between adjustable step up transformer of three-phase and the diode three-phase rectifier circuit, diode three-phase rectifier circuit connects the thyristor circuit that charges, energy storage circuit connects in parallel between the thyristor circuit that charges and diode three-phase rectifier circuit output negative pole, bleeder circuit and energy storage circuit are parallelly connected, discharge circuit and energy storage circuit are parallelly connected, the inductor that awaits measuring sets up in discharge.
Furthermore, the secondary winding of the three-phase adjustable boosting transformer adopts two taps.
Furthermore, a three-phase circuit breaker and a three-phase alternating current contactor are arranged between the three-phase adjustable step-up transformer and an external power grid, and a three-phase charging contactor and a fuse are arranged between the three-phase adjustable step-up transformer and the diode three-phase rectifying circuit.
Furthermore, the charging circuit comprises a plurality of charging circuits, each charging circuit comprises a thyristor and a charging resistor, the thyristor and the charging resistor are connected in series, and the plurality of charging circuits are connected in series with the anode of the output end of the diode three-phase rectifying circuit after being connected in parallel.
Further, the release circuit comprises a third contactor and a discharge resistor, the energy storage circuit comprises an energy storage capacitor, and the third contactor and the discharge resistor are connected in series and then connected in parallel at two ends of the energy storage capacitor.
Furthermore, the discharge loop comprises a voltage-sharing resistor, a fly-wheel diode, an inductor to be tested, a water-cooling resistor and a vacuum trigger tube, the voltage-sharing resistor and the fly-wheel diode are connected in parallel, the water-cooling resistor and the inductor to be tested are connected in series and are connected in parallel with a parallel loop formed by two groups of voltage-sharing resistors and two groups of fly-wheel diodes, and the parallel loop formed is connected in series with the vacuum trigger tube and then is connected in parallel at two ends of the discharge loop.
Further, the charging thyristor circuit is connected with a thyristor drive board, and the thyristor drive board is connected with a plurality of thyristors.
The utility model has the advantages that: after the structure is adopted, the charging efficiency is high, the current, the output power and the voltage can be adjusted by adjusting the three-phase adjustable step-up transformer and the charging thyristor circuit, and the test requirement of the high-power reactor can be met.
Drawings
The following further explains the embodiments of the present invention with reference to the drawings.
Fig. 1 is a system block diagram of a reactor testing platform according to the present invention;
fig. 2 is a schematic diagram of a system of the reactor testing platform of the present invention.
Detailed Description
As shown in fig. 1 and fig. 2, the present embodiment discloses a reactor test platform, which includes a charging loop 1, a discharging loop 3, an energy storage loop 2, and a discharging loop 4, wherein the charging loop 1 includes a three-phase adjustable step-up transformer 5, a diode three-phase rectification circuit 6, and a charging thyristor circuit 7, which are connected in sequence.
A circuit breaker and a contactor are sequentially arranged between an external power grid and the three-phase adjustable step-up transformer 5, and the output end of the three-phase adjustable step-up transformer 5 is sequentially connected with the contactor and the fuse and then connected with a diode three-phase rectifying circuit 6; the discharge loop 3 is connected in parallel with the output end of the charging thyristor circuit 7 and the negative electrode of the output end of the diode three-phase rectification circuit 6, the energy storage loop 2 is connected in parallel with the output end of the charging thyristor circuit 7 and the negative electrode of the output end of the diode three-phase rectification circuit 6, the discharge loop 4 is connected in parallel with the energy storage loop 2, and the inductor to be tested is arranged in the discharge loop 4.
Specifically, a three-phase alternating current incoming line of an external power grid is sequentially connected with a three-phase breaker QF1 and a three-phase alternating current contactor KM1, a primary side of a three-phase adjustable boosting transformer TC1 is connected with an outgoing line end of the three-phase alternating current contactor KM1, an incoming line end of a three-phase charging contactor KM2 is connected with a secondary side of the three-phase adjustable boosting transformer TC1, a secondary side winding of the three-phase adjustable boosting transformer TC1 adopts two taps, and transformation ratio adjustment can be achieved at a secondary side winding end of the transformer, so that voltage adjustment is achieved, and reservation is made for charging of; each phase of the outlet end of the three-phase charging contactor KM2 is respectively connected with a fuse FU 1-FU 3 in series and then connected with the input end of a diode three-phase rectifying circuit 6, the anode of the output end of the diode three-phase rectifying circuit 6 is connected with the input end of a charging thyristor circuit 7, and the diode three-phase rectifying circuit 6 is a rectifying bridge circuit.
The charging thyristor circuit 7 comprises a plurality of charging circuits, each charging circuit comprises 1 thyristor and 1 charging resistor which are connected in series, namely the thyristor S1 is connected in series with the charging resistor R1, the thyristor S2 is connected in series with the charging resistor R2, the thyristor S3 is connected in series with the charging resistor R3, the thyristor S4 is connected in series with the charging resistor R4, the thyristor S5 is connected in series with the charging resistor R5, then 5 thyristors and the charging resistor are connected in series and combined in parallel, then five thyristors and the charging resistor are connected in series and combined with each other and then connected with the positive electrode of the diode three-phase rectifying circuit 6, and the charging thyristor circuit 7 is integrated in a thyristor switch cabinet.
In practical application, the thyristor switching device (such as a thyristor driving board) is used for controlling the switching-on sequence and the switching-on time of the thyristors S1-S5, so that the switched charging resistor is determined, the magnitude of the charging current is controlled, the capacitor voltage grade in the energy storage loop is adjustable, the voltage required in the test can be realized, the performance index of the reactor can be tested quickly and accurately, and the reliability of voltage control is improved.
The energy storage loop 2 comprises 8 monomer thin-film capacitors (not completely shown in the figure) which are connected in parallel, and the positive end and the negative end of each capacitor are respectively connected with the output end of the charging thyristor circuit 7 and the negative end of the diode three-phase rectifying circuit 6.
The discharge loop 3 comprises a discharge contactor KM3 and a discharge resistor Rf, the discharge contactor KM3 is connected with the discharge resistor Rf in series, and a discharge contactor KM3 and a discharge resistor Rf series circuit are respectively connected with the output end of the charging thyristor circuit 7 and the cathode of the output end of the diode three-phase rectification circuit 6 in parallel; the discharge circuit 3 is built in the charging cabinet.
The discharging circuit 4 comprises a voltage-sharing resistor R6 and a freewheeling diode D7, the voltage-sharing resistor R6 and a freewheeling diode D7 are connected in parallel, the voltage-sharing resistor R7 and a freewheeling diode D8 are connected in parallel, the voltage-sharing resistor R6 and the freewheeling diode D7 are connected in parallel, the voltage-sharing resistor R7 and the freewheeling diode D8 are connected in parallel and combined in series, then a water-cooling resistor Rz and a series circuit of a detected inductor L are connected in parallel at two ends of the series circuit formed by the freewheeling diode and the voltage-sharing resistor in parallel, and finally the whole circuit is connected in series with a trigger tube DK (namely, the voltage-sharing resistor R6 and the R7 are connected in series, the freewheeling diode D7 and the D8 are connected in series, the water-cooling resistor Rz and the detected inductor L are connected in series, the R6 and the R7 are connected with the D7 and the D8, then the three series. Diodes are adopted at two ends of an impedance load of the discharging loop as follow current switching devices, and each follow current diode adopts a parallel voltage-sharing resistor.
In the preferred embodiment, the power devices (including the thyristor switch cabinet, the detected inductor and the water-cooled resistor) all adopt plasma water as a cooling medium, and the device is combined with equipment such as the water-cooled resistor cabinet, the water-cooled equipment system cabinet and the air radiator, so that the device has the advantages of high cooling speed, good heat dissipation effect and the like.
As shown in fig. 2, the three-phase circuit breaker QF1 and the three-phase ac contactor KM1 are closed, one group of transformation ratio wiring is selected from the secondary winding of the three-phase adjustable step-up transformer 5 before power is turned on, voltage adjustment can be realized at the secondary winding end of the transformer, then the three-phase charging contactor KM2 is closed, at this time, three-phase full-wave rectification can be realized, the ac current at the outlet end of the transformer is converted into the dc current, and then the turn-on sequence and time of the thyristor are controlled by the PLC, so that the magnitude of the charging current and the voltage of the energy storage capacitor are further.
If single reactor test is carried out, the test frequency is set to be 1 in a Labview control interface, then a three-phase breaker QF1, a three-phase contactor KM1 and a three-phase charging contactor KM2 are closed, the turn-on sequence and time of a thyristor are controlled by a PLC (programmable logic controller), the capacitor voltage is charged to rated voltage, the three-phase charging contactor KM2 is disconnected, then the conduction of a trigger tube DK is controlled, the pulse test discharge test of an impedance circuit formed by the series connection of a water-cooling resistor Rz and a tested inductor L is realized, finally a discharge contactor KM3 is closed, the voltage in an energy storage capacitor is completely released through the discharge resistor, and the discharge contactor KM3 and the three-phase charging contactor KM2 are disconnected respectively.
If the reactor is continuously tested, the water-cooling circulation device needs to be opened at the moment. Setting the test times as set times in a Labview control interface, then closing a three-phase breaker QF1, a three-phase contactor KM1 and a three-phase charging contactor KM2, controlling the turn-on sequence and time of a thyristor through a PLC (programmable logic controller), charging the capacitor voltage to rated voltage, disconnecting the three-phase charging contactor KM2, controlling the conduction of a trigger tube DK, realizing a pulse test discharge test on an impedance circuit formed by connecting a water-cooling resistor Rz and a tested inductor L in series, and then closing the three-phase charging contactor KM 2; and the process is circulated. After the discharging times of the set setting are finished, the discharging contactor KM3 is closed finally, the voltage in the energy storage capacitor is released through the discharging resistor, and the discharging contactor KM3 and the three-phase charging contactor KM2 are disconnected respectively.
According to the reactor test platform disclosed by the application, during testing, the adjustable voltage can be realized by setting the switching-on order and time of the thyristors S1-S5 in the charging cabinet, so that the required energy is provided for the external tested inductor, the control difficulty of a pulse power supply is reduced, and the reliability of the power supply is improved; the short plate can solve the problems of the existing reactor test equipment that the output power is small, the voltage is low, the charging current is not adjustable, and the like, can realize the characteristics of high power, high voltage, adjustable charging current and charging time, and the like, can accurately measure each index parameter of the reactor performance, and has good market application prospect.
In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. All the contents that do not depart from the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention all still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. A reactor test platform which characterized in that: the charging circuit is connected with an external power grid, the charging circuit comprises a three-phase adjustable step-up transformer, a diode three-phase rectifying circuit and a charging thyristor circuit which are sequentially connected, the three-phase adjustable step-up transformer is connected with the external power grid, a switch device is arranged between the three-phase adjustable step-up transformer and the diode three-phase rectifying circuit, the diode three-phase rectifying circuit is connected with the charging thyristor circuit, the energy storage circuit is connected between the charging thyristor circuit and the negative electrode of the output end of the diode three-phase rectifying circuit in parallel, the discharging circuit is connected with the energy storage circuit in parallel, and an inductor to be tested is arranged in the discharging circuit.
2. The reactor test platform according to claim 1, characterized in that: the secondary winding of the three-phase adjustable boosting transformer adopts two taps.
3. The reactor test platform according to claim 1, characterized in that: a three-phase circuit breaker and a three-phase alternating current contactor are arranged between the three-phase adjustable boosting transformer and an external power grid, and a three-phase charging contactor and a fuse are arranged between the three-phase adjustable boosting transformer and the diode three-phase rectifying circuit.
4. The reactor test platform according to claim 1, characterized in that: the charging circuit comprises a plurality of charging circuits, each charging circuit comprises a thyristor and a charging resistor, the thyristors and the charging resistors are connected in series, and the plurality of charging circuits are connected in series with the positive electrode of the output end of the diode three-phase rectifying circuit after being connected in parallel.
5. The reactor test platform according to claim 1, characterized in that: the discharge circuit comprises a third contactor and a discharge resistor, the energy storage circuit comprises an energy storage capacitor, and the third contactor and the discharge resistor are connected in series and then connected in parallel at two ends of the energy storage capacitor.
6. The reactor test platform according to claim 1, characterized in that: the discharge loop comprises a voltage-sharing resistor, a freewheeling diode, an inductor to be tested, a water-cooling resistor and a vacuum trigger tube, the voltage-sharing resistor and the freewheeling diode are connected in parallel, the water-cooling resistor is connected in series with the inductor to be tested and connected in parallel with a parallel loop formed by two groups of voltage-sharing resistors and freewheeling diodes, and the formed parallel loop is connected in series with the vacuum trigger tube and then connected in parallel at two ends of the discharge loop.
7. The reactor test platform according to claim 1, characterized in that: the charging thyristor circuit is connected with the thyristor drive board, and the thyristor drive board is connected with the plurality of thyristors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251976.7U CN211554142U (en) | 2019-12-16 | 2019-12-16 | Reactor test platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922251976.7U CN211554142U (en) | 2019-12-16 | 2019-12-16 | Reactor test platform |
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| CN211554142U true CN211554142U (en) | 2020-09-22 |
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| CN201922251976.7U Active CN211554142U (en) | 2019-12-16 | 2019-12-16 | Reactor test platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269114A (en) * | 2020-10-15 | 2021-01-26 | 许继集团有限公司 | Converter valve thyristor level high-low voltage function testing device |
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- 2019-12-16 CN CN201922251976.7U patent/CN211554142U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269114A (en) * | 2020-10-15 | 2021-01-26 | 许继集团有限公司 | Converter valve thyristor level high-low voltage function testing device |
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Address after: 211106 No. 11 Daquan Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. Address before: 211106 No. 11 Daquan Road, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU DAQO KAIFAN ELECTRICAL APPLIANCE Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |