CN212303333U - Reactor device for eliminating pulsation harmonic and intermediate frequency power circuit - Google Patents
Reactor device for eliminating pulsation harmonic and intermediate frequency power circuit Download PDFInfo
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- CN212303333U CN212303333U CN202021723960.8U CN202021723960U CN212303333U CN 212303333 U CN212303333 U CN 212303333U CN 202021723960 U CN202021723960 U CN 202021723960U CN 212303333 U CN212303333 U CN 212303333U
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- 230000010349 pulsation Effects 0.000 title claims abstract description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 66
- 229910052802 copper Inorganic materials 0.000 claims abstract description 66
- 239000010949 copper Substances 0.000 claims abstract description 66
- 238000004804 winding Methods 0.000 claims abstract description 36
- 238000005267 amalgamation Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003990 capacitor Substances 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008676 import Effects 0.000 abstract description 2
- 230000006641 stabilisation Effects 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 7
- 238000005266 casting Methods 0.000 description 5
- 239000000498 cooling water Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a reactor device and intermediate frequency power supply circuit for eliminating pulsation harmonic, the device include copper bar winding and mounting bracket, and the copper bar winding is formed by copper bar spiral coiling, and the mounting bracket is the rectangle frame that four rectangular plate amalgamation formed, and the outside of copper bar winding is located to the mounting bracket cover, and is equipped with a plurality of mounting grooves on the both sides inner wall of mounting bracket, and the both sides edge of each layer copper bar stretches into respectively in the corresponding mounting groove in the copper bar winding. This reactor device uses the water pipe that the copper bar replaced traditional reactor, and the effectual extravagant problem of energy that causes because of the heat production in having alleviated the working process has just avoided blockking up the problem of water pipe because of the scale deposit that the water pipe import and export the difference in temperature leads to, has improved the life and the job stabilization nature of reactor, also reaches energy-conserving effect simultaneously. The self-healing capacitor is not used in the circuit, the function of eliminating harmonic waves is realized only through the reactor device, the harmonic waves are eliminated, meanwhile, the energy consumption is lower, and the circuit is more stable and reliable.
Description
Technical Field
The utility model relates to a technical field is eliminated to the intermediate frequency power supply harmonic, and more specifically the utility model relates to a reactor device and intermediate frequency power supply circuit for eliminating pulsation harmonic that says so.
Background
At present, with the rapid development of the mechanical industry, the medium frequency power supply widely applied to the casting industry plays an increasingly important role. Taking a 6-pulse intermediate frequency power supply as an example, as shown in fig. 1, the intermediate frequency power supply rectifies a 380V and 50Hz line frequency current into a direct current by a three-phase fully controlled bridge rectifier circuit 11, and the direct current is filtered by a smoothing reactor 12 (hereinafter referred to as a reactor), converted into an intermediate frequency current having a voltage of 750V and a frequency of about 1000Hz by a single-phase passive bridge inverter circuit 13, and supplied to a load 14. The current rectified by the three-phase fully-controlled bridge type rectifying circuit still has a ripple harmonic component of 300 Hz. The harmonic component has great harm to the normal operation of the inverter circuit, and the ripple oblique wave current must be blocked in the circuit before inversion. Therefore, the reactor which plays a role in eliminating the ripple ramp wave is an important inductive element in the medium-frequency power supply, and direct current flows in the work, so that the performance of the reactor is good and bad, and the normal power supply of a 50Hz power grid is directly influenced.
At present, an inductance winding of an intermediate frequency power reactor widely used in industry is mostly wound by a copper pipe, and cooling water flows in the copper pipe. When the reactor works, the direct current in the winding can reach hundreds to thousands of amperes. The sectional area of the winding wire of the structure is relatively small, so that a large amount of heat generated during working not only causes energy waste, but also increases the load of a cooling system, and in addition, the temperature difference of a cooling water inlet and a cooling water outlet is large due to long pipe pass and thin pipe diameter of a cooling pipeline. After the cooling water is heated, scaling is easily formed in the pipe to block a flow pipeline, so that the winding is burnt due to overheating. Meanwhile, the traditional intermediate frequency power supply generally adopts a capacitor and an inductor to rectify and stabilize waveforms, so that a power grid network cannot generate oblique waves. The method for eliminating the oblique wave which is commonly adopted at present is a mode of eliminating the oblique wave by a self-healing capacitor and a reactance so as to stabilize the waveform and avoid interference, although the mode can eliminate the oblique wave interference to a certain extent, the consumed electric energy is large due to large capacity of the input capacitor, and the use requirement of low energy consumption is difficult to meet.
Therefore, how to provide a reactor device with low energy consumption and stable operation is a problem that needs to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a reactor device and intermediate frequency power supply circuit for eliminating pulsation harmonic, this reactor device adopt the copper bar to replace the water pipe, and the power consumption is extremely low, and the energy saving when can the stable wave form has solved the problem that current harmonic wave elimination device consumes energy height and life is short.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
in one aspect, the utility model provides a reactor device for eliminating pulsation harmonic, the device includes: copper bar winding and mounting bracket, the copper bar winding is formed by copper bar spiral coiling, the mounting bracket is the rectangle frame that four rectangular plate board amalgamations formed, the mounting bracket cover is located the outside of copper bar winding, just be equipped with a plurality of mounting grooves on the both sides inner wall of mounting bracket, the mounting groove with each layer copper bar corresponds the setting in the copper bar winding, the both sides edge of each layer copper bar stretches into respectively in the copper bar winding corresponds in the mounting groove.
The utility model has the advantages that: this reactor device uses the water pipe that the copper bar replaced traditional reactor, and the effectual extravagant problem of energy that causes because of the heat production in having alleviated the working process has just avoided blockking up the problem of water pipe because of the scale deposit that the water pipe import and export the difference in temperature leads to, has improved the life and the job stabilization nature of reactor, also reaches energy-conserving effect simultaneously.
Specifically, the copper sheet width that copper bar winding chose for use is 40mm, encircles the internal diameter and is 89mm, encircles the external diameter and is 166 mm. The reactor device is mainly applied to the medium-frequency electric furnace, and the thickness of the adopted copper sheet is in direct proportion to the productivity of the medium-frequency electric furnace for casting.
Furthermore, one end of the copper bar winding is turned outwards and the end part of the copper bar winding is horizontally arranged, the other end of the copper bar winding extends along the tangential direction of the inner circle surrounded by the copper bar, and mounting holes used for being connected with other devices are formed in the end parts of the two sides of the copper bar winding. Because this reactor device later stage needs to be connected with other electrical parts, specifically realizes through the both ends of copper bar, and the mounting hole at copper bar both ends is mainly exactly to be connected the usefulness with other electrical parts of top and bottom, for example can fix the link that corresponds on copper bar both ends and other devices through connecting pieces such as bolts, realizes connecting and the installation of reactor device.
On the other hand, the utility model also provides an intermediate frequency power supply circuit, which comprises a power frequency electric input end, a rectifying circuit, an inverter circuit, an intermediate frequency electric output end and a plurality of the reactor devices for eliminating the pulsation harmonic wave;
the power frequency electric input end is electrically connected with the input end of the rectifying circuit, the output end of the rectifying circuit is electrically connected with the input end of the inverter circuit, and the output end of the inverter circuit is electrically connected with the intermediate frequency electric output end;
the cable that power frequency electricity input end and rectifier circuit are connected is equipped with one respectively the reactor device, be equipped with on the cable that rectifier circuit and inverter circuit are connected the reactor device, inverter circuit with be equipped with a plurality of on the cable that intermediate frequency electricity output end is connected the reactor device.
Not use self-healing electric capacity in this circuit, only pass through the utility model discloses in the function of harmonic is realized eliminating by the above-mentioned reactor device of modified, when eliminating the harmonic, the power consumption is lower, and the circuit is more reliable and more stable.
Furthermore, the rectifier circuit adopts a three-phase fully-controlled bridge rectifier circuit and comprises a thyristor KP11Thyristor KP12Thyristor KP13Thyristor KP14Thyristor KP15And thyristor KP16；
The thyristor KP11And thyristor KP14The thyristor KP is connected with the C phase power supply in the power frequency electric input end through the reactor device13And thyristor KP16The thyristor KP is connected with the B phase of the three-phase power supply in the power frequency electric input end through the reactor device15And thyristor KP12The reactor device is connected with A of a three-phase power supply in the power frequency electric input end, and the output end of the three-phase fully-controlled bridge rectifier circuit is connected with the input end of the inverter circuit through the reactor device.
Further, the inverter circuit comprises a first switch module, a second switch module, a third switch module and a fourth switch module;
the first switch module and the third switch module are respectively connected in series with the reactor device, and are connected with one side of the medium-frequency power output end through the reactor devices which are respectively connected in series;
the second switch module and the fourth switch module are respectively connected in series with one reactor device, and the second switch module and the fourth switch module are connected with each other through the reactor devices connected in series and connected to the other side of the intermediate-frequency power output end.
Further, the first switch module comprises a thyristor KP21Thyristor KP22Resistance R1And a resistance R2Said resistance R1And the thyristor KP21In parallel, the resistor R2And the thyristor KP22In parallel, and the resistor R1And the thyristor KP21And the resistor R2And the thyristor KP22Are connected in parallel;
the second switch module comprises a thyristor KP23Thyristor KP24Resistance R3And a resistance R4Said resistance R3And the thyristor KP23In parallel, the resistor R4And the thyristor KP24In parallel, and the resistor R3And the thyristor KP23And the resistor R4And the thyristor KP24Are connected in parallel;
the third switch module packThyristor KP25Thyristor KP26Resistance R5And a resistance R6Said resistance R5And the thyristor KP25In parallel, the resistor R6And the thyristor KP26In parallel, the resistor R5And the thyristor KP25And the resistor R6And the thyristor KP26Are connected in parallel;
the fourth switch module comprises a thyristor KP27And thyristor KP28Resistance R7And a resistance R8Said resistance R7And the thyristor KP27In parallel, the resistor R8And the thyristor KP28In parallel, the resistor R7And the thyristor KP27And the resistor R8And the thyristor KP28Are connected in parallel.
The utility model discloses well inverter circuit improves based on single-phase passive bridge type inverter circuit, and the inverter circuit who obtains can obtain more reliable and stable intermediate frequency electricity with the reactor device cooperation of addding to the normal operating of load has been guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic circuit diagram of a conventional intermediate frequency power supply;
fig. 2 is a schematic structural diagram of a reactor device for eliminating ripple harmonics according to the present invention;
fig. 3 is a schematic structural diagram of a reactor device for eliminating ripple harmonics according to another view angle;
fig. 4 is a schematic circuit diagram of a 6-pulse if power circuit provided by the present invention;
fig. 5 is a schematic diagram of a practical circuit of a 6-pulse if power circuit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a 12-pulse if power circuit according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In one aspect, referring to fig. 2 and 3, an embodiment of the present invention discloses a reactor device for eliminating ripple harmonics, the device including: copper bar winding 1 and mounting bracket 2, copper bar winding 1 is formed by copper bar spiral coiling, and mounting bracket 2 is the rectangle frame that four rectangular plate board amalgamations formed, and copper bar winding 1's the outside is located to 2 covers of mounting bracket, and is equipped with a plurality of mounting grooves 3 on mounting bracket 2's the both sides inner wall, and each layer copper bar corresponds the setting in mounting groove 3 and the copper bar winding 1, and the both sides edge of each layer copper bar stretches into respectively in the mounting groove 3 that corresponds in the copper bar winding 1.
Specifically, the copper sheet width that copper bar winding 1 chose for use is 40mm, encircles the internal diameter and is 89mm, encircles the external diameter and is 166 mm. The reactor device is mainly applied to the medium-frequency electric furnace, and the thickness of the adopted copper sheet is in direct proportion to the productivity of the medium-frequency electric furnace for casting.
For example, take a medium frequency electric furnace with casting capacity of 1 ton/hour as an example:
the novel reactor adopts a copper bar with the thickness of 5.5mm and the width of 40mm, and adopts a spiral surrounding mode to manufacture the copper bar with the surrounding inner diameter of 89mm and the outer diameter of 166 mm;
for another example, a medium frequency electric furnace with a casting capacity of 2 tons/hour is taken as an example:
the novel reactor adopts a copper sheet with the thickness of 11mm and the width of 40mm, and adopts a spiral surrounding mode to manufacture a copper bar with the surrounding inner diameter of 89mm and the outer diameter of 166 mm;
taking this as an example, the thickness of the copper sheet adopted by the novel reactor is in direct proportion to the productivity of the cast medium-frequency electric furnace.
Specifically, the one end of copper bar winding 1 is turned over to the outside and the tip level is arranged, and the other end of copper bar winding 1 extends along the tangential direction that the circle is interior around to the copper bar, and the both sides tip of copper bar winding 1 all is equipped with and is used for being connected the mounting hole 4 of usefulness with other devices. Because this reactor device later stage needs to be connected with other electrical parts, specifically realizes through the both ends of copper bar, and the mounting hole at copper bar both ends is mainly exactly to be connected the usefulness with other electrical parts of top and bottom, for example can fix the link that corresponds on copper bar both ends and other devices through connecting pieces such as bolts, realizes connecting and the installation of reactor device.
On the other hand, the embodiment of the utility model also discloses an intermediate frequency power supply circuit, which comprises a power frequency electric input end, a rectifying circuit, an inverter circuit, an intermediate frequency electric output end and a plurality of the above-mentioned reactor devices for eliminating pulsation harmonic waves;
the power frequency electric input end is electrically connected with the input end of the rectifying circuit, the output end of the rectifying circuit is electrically connected with the input end of the inverter circuit, and the output end of the inverter circuit is electrically connected with the intermediate frequency electric output end;
the cable that power frequency electricity input end and rectifier circuit are connected is equipped with a reactor device respectively, is specifically inlet wire reactor L1, L2 and L3 in fig. 4, is equipped with reactor device L4 on the cable that rectifier circuit and inverter circuit are connected, is equipped with a plurality of reactor devices on the cable that inverter circuit and intermediate frequency electricity output end are connected, specifically is L5, L6, L7 and L8 in fig. 4.
In this embodiment, a schematic diagram of a 6-pulse intermediate frequency power supply circuit is shown, and as shown in fig. 4, a 12-pulse circuit is also provided, as shown in fig. 6.
Specifically, the rectifier circuit in this embodiment adopts a three-phase fully-controlled bridge rectifier circuit, and the 6-pulse circuit shown in fig. 4 has one three-phase fully-controlled bridge rectifier circuit, which includes the thyristor KP11Thyristor KP12Thyristor KP13Thyristor KP14Thyristor KP15And thyristor KP16；
Thyristor KP11And thyristor KP14Is connected with the C of a three-phase power supply in the power frequency electric input end through a reactor device L1 and a switch K1, and a thyristor KP13And thyristor KP16Is connected with a three-phase power supply B in the power frequency electric input end through a reactor device L2 and a switch K2, and a thyristor KP15And thyristor KP12The three-phase full-control bridge type rectifying circuit is connected with the A of a three-phase power supply in the power frequency electric input end through a reactor device L3 and a switch K3, and the output end of the three-phase full-control bridge type rectifying circuit is also connected with the input end of the inverter circuit through a reactor device L4.
FIG. 6 shows a 12-pulse circuit with two three-phase fully-controlled bridge rectifier circuits, the second one including a thyristor KP31Thyristor KP32Thyristor KP33Thyristor KP34Thyristor KP35And thyristor KP36；
Thyristor KP31And thyristor KP34Is connected with the C of a three-phase power supply in the power frequency electric input end through a reactor device L9 and a switch K5, and a thyristor KP33And thyristor KP36Is connected with a three-phase power supply B in the power frequency electric input end through a reactor device L10 and a switch K6, and a thyristor KP35And thyristor KP32The output end of the second three-phase fully-controlled bridge rectifier circuit is also connected with the input end of the inverter circuit through a reactor device L11 and a switch K7.
Referring to fig. 4 or fig. 6, a resistor R is connected in parallel between the rectifying circuit and the inverter circuit9And a voltmeter to realize the voltage detection function, and an indicator light and a switch K4 can be connected to realize the state indication function, and fig. 4 also shows a current detection circuit composed of a current meter and a test resistor.
Specifically, the inverter circuit comprises a first switch module, a second switch module, a third switch module and a fourth switch module;
the first switch module and the third switch module are respectively connected in series with a reactor device, and are connected and connected to one side of the medium-frequency power output end through the reactor devices which are respectively connected in series;
the second switch module and the fourth switch module are respectively connected in series with a reactor device, and the second switch module and the fourth switch module are connected in parallel to the other side of the medium-frequency electric output end through the reactor devices which are respectively connected in series.
Specifically, referring to fig. 4, 5 or 6, the first switching module includes a thyristor KP21Thyristor KP22Resistance R1And a resistance R2Resistance R1And thyristor KP21Parallel connection, resistance R2And thyristor KP22In parallel, and a resistance R1And thyristor KP21Parallel circuit of (2) and resistor R2And thyristor KP22Is connected to one side of the intermediate frequency power output terminal through a series reactor device L5;
the second switch module comprises a thyristor KP23Thyristor KP24Resistance R3And a resistance R4Resistance R3And thyristor KP23Parallel connection, resistance R4And thyristor KP24In parallel, and a resistance R3And thyristor KP23Parallel circuit of (2) and resistor R4And thyristor KP24Is connected to the other side of the intermediate frequency power output end through a series reactor device L6;
the third switch module comprises a thyristor KP25Thyristor KP26Resistance R5And a resistance R6Resistance R5And thyristor KP25Parallel connection, resistance R6And thyristor KP26Parallel connection, resistance R5And thyristor KP25Parallel circuit of (2) and resistor R6And thyristor KP26Is connected to one side of the intermediate frequency power output terminal through a series reactor device L7;
the fourth switch module comprises a thyristor KP27And thyristor KP28Resistance R7And a resistance R8Resistance R7And thyristor KP27Parallel connection, resistance R8And thyristor KP28Parallel connection, resistance R7And thyristor KP27Parallel circuit of (2) and resistor R8And thyristor KP28Is connected to the other side of the intermediate frequency power output terminal through the series reactor device L8.
At the same time, the output end of the inverter circuit is connected in parallel with a capacitor C1Capacitor C1And is connected with a load R.
In practical application, a transformer, a capacitor and a diode can be connected behind the load R, and finally the obtained intermediate frequency power is converted into 220V mains power, and an example of the voltage conversion part is shown in fig. 5.
To sum up, the utility model discloses a reactor device and medium frequency power supply circuit compares with prior art, has following advantage:
1. the reactor device uses the copper bar to replace the water pipe of the traditional reactor, thereby effectively relieving the problem of energy waste caused by heat production in the working process, avoiding the problem of water pipe blockage caused by scaling due to the temperature difference of the inlet and the outlet of the water pipe, prolonging the service life and working stability of the reactor, and simultaneously achieving the effect of energy conservation;
2. the self-healing capacitor is not used in the circuit, the function of eliminating the harmonic waves is realized only through the improved reactor device in the embodiment, the harmonic waves are eliminated, meanwhile, the energy consumption is lower, and the circuit is more stable and reliable.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A reactor device for eliminating ripple harmonics, comprising: copper bar winding and mounting bracket, the copper bar winding is formed by copper bar spiral coiling, the mounting bracket is the rectangle frame that four rectangular plate board amalgamations formed, the mounting bracket cover is located the outside of copper bar winding, just be equipped with a plurality of mounting grooves on the both sides inner wall of mounting bracket, the mounting groove with each layer copper bar corresponds the setting in the copper bar winding, the both sides edge of each layer copper bar stretches into respectively in the copper bar winding corresponds in the mounting groove.
2. The reactor device for eliminating the pulsation harmonics according to claim 1, wherein one end of the copper bar winding is turned over to the outside and the end is horizontally arranged, the other end of the copper bar winding extends along the tangential direction of the inner circle of the copper bar winding, and both ends of the copper bar winding are provided with mounting holes for connecting with other devices.
3. An intermediate frequency power supply circuit comprising a power frequency electric input terminal, a rectifier circuit, an inverter circuit, an intermediate frequency electric output terminal, and a plurality of reactor devices for eliminating ripple harmonics as claimed in claim 1 or 2;
the power frequency electric input end is electrically connected with the input end of the rectifying circuit, the output end of the rectifying circuit is electrically connected with the input end of the inverter circuit, and the output end of the inverter circuit is electrically connected with the intermediate frequency electric output end;
the cable that power frequency electricity input end and rectifier circuit are connected is equipped with one respectively the reactor device, be equipped with on the cable that rectifier circuit and inverter circuit are connected the reactor device, inverter circuit with be equipped with a plurality of on the cable that intermediate frequency electricity output end is connected the reactor device.
4. The IF power circuit according to claim 3, wherein said rectifying circuit is a three-phase fully controlled bridge rectifier circuit comprising thyristors KP11Thyristor KP12Thyristor KP13Thyristor KP14Thyristor KP15And thyristor KP16；
The thyristor KP11And thyristor KP14The thyristor KP is connected with the C phase power supply in the power frequency electric input end through the reactor device13And thyristor KP16The thyristor KP is connected with the B phase of the three-phase power supply in the power frequency electric input end through the reactor device15And thyristor KP12The reactor device is connected with A of a three-phase power supply in the power frequency electric input end, and the output end of the three-phase fully-controlled bridge rectifier circuit is connected with the input end of the inverter circuit through the reactor device.
5. The IF power supply circuit of claim 3, wherein the inverter circuit comprises a first switch module, a second switch module, a third switch module and a fourth switch module,
the first switch module and the third switch module are respectively connected in series with the reactor device, and are connected with one side of the medium-frequency power output end through the reactor devices which are respectively connected in series;
the second switch module and the fourth switch module are respectively connected in series with one reactor device, and the second switch module and the fourth switch module are connected with each other through the reactor devices connected in series and connected to the other side of the intermediate-frequency power output end.
6. An intermediate frequency power supply circuit as claimed in claim 5, which isCharacterized in that the first switching module comprises a thyristor KP21Thyristor KP22Resistance R1And a resistance R2Said resistance R1And the thyristor KP21In parallel, the resistor R2And the thyristor KP22In parallel, and the resistor R1And the thyristor KP21And the resistor R2And the thyristor KP22Are connected in parallel;
the second switch module comprises a thyristor KP23Thyristor KP24Resistance R3And a resistance R4Said resistance R3And the thyristor KP23In parallel, the resistor R4And the thyristor KP24In parallel, and the resistor R3And the thyristor KP23And the resistor R4And the thyristor KP24Are connected in parallel;
the third switch module comprises a thyristor KP25Thyristor KP26Resistance R5And a resistance R6Said resistance R5And the thyristor KP25In parallel, the resistor R6And the thyristor KP26In parallel, the resistor R5And the thyristor KP25And the resistor R6And the thyristor KP26Are connected in parallel;
the fourth switch module comprises a thyristor KP27And thyristor KP28Resistance R7And a resistance R8Said resistance R7And the thyristor KP27In parallel, the resistor R8And the thyristor KP28In parallel, the resistor R7And the thyristor KP27And the resistor R8And the thyristor KP28Are connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021723960.8U CN212303333U (en) | 2020-08-18 | 2020-08-18 | Reactor device for eliminating pulsation harmonic and intermediate frequency power circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021723960.8U CN212303333U (en) | 2020-08-18 | 2020-08-18 | Reactor device for eliminating pulsation harmonic and intermediate frequency power circuit |
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| Publication Number | Publication Date |
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| CN212303333U true CN212303333U (en) | 2021-01-05 |
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| CN202021723960.8U Expired - Fee Related CN212303333U (en) | 2020-08-18 | 2020-08-18 | Reactor device for eliminating pulsation harmonic and intermediate frequency power circuit |
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