CN203289379U - A frequency conversion circuit for converting frequency and regulating speed of AC with high voltage and large power - Google Patents
A frequency conversion circuit for converting frequency and regulating speed of AC with high voltage and large power Download PDFInfo
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- CN203289379U CN203289379U CN2013203363402U CN201320336340U CN203289379U CN 203289379 U CN203289379 U CN 203289379U CN 2013203363402 U CN2013203363402 U CN 2013203363402U CN 201320336340 U CN201320336340 U CN 201320336340U CN 203289379 U CN203289379 U CN 203289379U
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- diode
- insulated gate
- bipolar transistor
- gate bipolar
- negative pole
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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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
Abstract
The utility model discloses a frequency conversion circuit for converting frequency and regulating speed of AC with high voltage and large power. The frequency conversion circuit comprises a rectifying circuit, a filtering circuit, a braking circuit, and an inverting circuit. The positive-pole output end of the rectifying circuit is connected with the positive-pole input end of the filtering circuit. The negative-pole output end of the rectifying circuit is connected with the negative-pole input end of the filtering circuit. The positive-pole output end of the filtering circuit is connected with the positive-pole input end of the braking circuit. The negative-pole output end of the filtering circuit is connected with the negative-pole input end of the braking circuit. The positive-pole output end of the braking circuit is connected with the positive-pole input end of the inverting circuit. The negative-pole output end of the braking circuit is connected with the negative-pole input end of the inverting circuit. Using serial connection or parallel connection among electronic units, the frequency conversion circuit converting frequency and regulating speed of AC with high voltage and large power converts high-voltage large-power AC into DC and then converts the DC into AC with demanded voltage and frequency, well resolving a problem of converting frequency and regulating speed of high-voltage large-power AC.
Description
Technical field
The utility model relates to a kind of frequency changer circuit, relates in particular to a kind of frequency changer circuit for the high-power frequency control.
Background technology
Frequency converter is application converter technique and microelectric technique, control the electric control appliance of alternating current motor by changing machine operation supply frequency mode, nowadays the use voltage of frequency converter is more and more higher, use power also increasing, and most of frequency converters can not well solve the problem of high-power, and the application of frequency converter has been caused limitation.
The utility model content
The purpose of this utility model provides a kind of frequency changer circuit that can effectively solve the high-power frequency conversion speed governing of high-voltage problem with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
a kind of frequency changer circuit for the high-power frequency control, comprise rectification circuit, filter circuit, braking circuit and inverter circuit, the cathode output end of described rectification circuit is connected with cathode output end with the electrode input end of described filter circuit and is connected with negative input, the cathode output end of described filter circuit is connected with cathode output end and is connected with negative input with described braking circuit electrode input end, the cathode output end of described braking circuit is connected with cathode output end with described inverter circuit electrode input end and is connected with negative input, described rectification circuit comprises the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, the 8th diode, the 9th diode, the tenth diode, the 11 diode and the 12 diode, the first-phase input of three-phase alternating current respectively at the positive pole of described the 4th diode be connected the negative pole of the 7th diode and connect, the negative pole of described the 4th diode is connected with the positive pole of described the first diode, the negative pole of described the first diode respectively with the negative pole of described the second diode be connected the negative pole of the 3rd diode and be connected, the positive pole of described the second diode is connected with the negative pole of described the 5th diode, the second-phase input of three-phase alternating current is connected with the negative pole of described the 8th diode with the positive pole of described the 5th diode respectively, the positive pole of described the 8th diode is connected with the negative pole of described the 11 diode, the positive pole of described the 11 diode respectively with the positive pole of described the tenth diode be connected the positive pole of the 12 diode and be connected, the negative pole of described the tenth diode is connected with the positive pole of described the 7th diode, the negative pole of described the 12 diode is connected with the positive pole of described the 9th diode, the third phase input of three-phase alternating current respectively with the positive pole of described the 6th resistance be connected the negative pole of the 9th diode and be connected, the negative pole of described the 3rd diode is the cathode output end of described rectification circuit, the cathode output end of the just very described rectification circuit of described the 12 diode.
Particularly, described filter circuit comprises the first resistance, the second resistance, the 4th resistance, switch, the first electric capacity and the second electric capacity, the first end of described the 4th resistance respectively with the first end of described switch be connected the negative pole of the 3rd diode and be connected, the second end of described the 4th resistance respectively with the first end of described the first resistance be connected the first end of the first electric capacity and be connected, the second end of described the first resistance is connected with the first end of described the second resistance, the second end of described the first electric capacity respectively with the first end of described the second electric capacity be connected the positive pole of the 12 diode and be connected.
Particularly, described braking circuit comprises the 3rd resistance and the 13 insulated gate bipolar transistor, the first end of described the 3rd resistance is connected with the second end of described switch, the second end of described the 3rd resistance is connected with the collector electrode of described the 13 insulated gate bipolar transistor, and the emitter of described the 13 insulated gate bipolar transistor is connected with the second end of described the second electric capacity.
particularly, described inverter circuit comprises the first insulated gate bipolar transistor, the second insulated gate bipolar transistor, the 3rd insulated gate bipolar transistor, the 4th insulated gate bipolar transistor, the 5th insulated gate bipolar transistor, the 6th insulated gate bipolar transistor, the 7th insulated gate bipolar transistor, the 8th insulated gate bipolar transistor, the 9th insulated gate bipolar transistor, the tenth insulated gate bipolar transistor, the 11 insulated gate bipolar transistor, the 12 insulated gate bipolar transistor, the 13 diode, the 14 diode, the 15 diode, the 16 diode, the 17 diode, the 18 diode, the 19 diode, the 20 diode, the 21 diode, the 22 diode, the 23 diode and the 24 diode, the collector electrode of described the first insulated gate bipolar transistor respectively with the negative pole of described the 13 diode, the collector electrode of described the second insulated gate bipolar transistor, the negative pole of described the 14 diode, the collector electrode of described the 3rd insulated gate bipolar transistor, the negative pole of described the 15 diode be connected the first end of the 3rd resistance and connect, the emitter of described the first insulated gate bipolar transistor respectively with the collector electrode of described the 4th insulated gate bipolar transistor, the positive pole of described the 13 diode be connected the negative pole of the 16 diode and connect, the emitter of described the 3rd insulated gate bipolar transistor respectively with the collector electrode of described the 6th insulated gate bipolar transistor, the positive pole of described the 15 diode be connected the negative pole of the 18 diode and connect, the emitter of described the 4th insulated gate bipolar transistor respectively with the positive pole of described the 16 diode, the collector electrode of described the 7th insulated gate bipolar transistor, the negative pole of described the 19 diode is connected the first-phase output and is connected with three-phase alternating current, the emitter of described the 5th insulated gate bipolar transistor respectively with the positive pole of described the 17 diode, the collector electrode of described the 8th insulated gate bipolar transistor, the negative pole of described the 20 diode is connected the second-phase output and is connected with three-phase alternating current, the emitter of described the 6th insulated gate bipolar transistor respectively with the positive pole of described the 18 diode, the collector electrode of described the 9th insulated gate bipolar transistor, the negative pole of described the 21 diode is connected with three-phase alternating current third phase output, and the collector electrode of described the 7th insulated gate bipolar transistor is respectively at the positive pole of described the 19 diode, the collector electrode of described the tenth insulated gate bipolar transistor be connected the negative pole of the 22 diode and connect, the emitter of described the 8th insulated gate bipolar transistor is respectively at the collector electrode of described the 11 insulated gate bipolar transistor, the positive pole of described the 20 diode be connected the negative pole of the 23 diode and connect, the emitter of described the 9th insulated gate bipolar transistor respectively with the collector electrode of described the 12 insulated gate bipolar transistor, the positive pole of described the 21 diode be connected the negative pole of the 24 diode and connect, the emitter of described the tenth insulated gate bipolar transistor is respectively at the positive pole of described the 22 diode, the emitter of described the 11 insulated gate bipolar transistor, the positive pole of described the 23 diode, the emitter of described the 12 insulated gate bipolar transistor, the positive pole of described the 24 diode be connected the emitter of the 13 insulated gate bipolar transistor and connect.
The beneficial effects of the utility model are:
Series connection between a kind of utilization of frequency changer circuit for the high-power frequency control of the utility model electronic devices and components or the parallel connection between electronic unit, the alternating current of high-power is converted into direct current, again direct current is changed into the alternating current of required voltage and frequency, can well solve the frequency control problem to high-power.
Description of drawings
Fig. 1 is the circuit diagram of a kind of frequency changer circuit in the high-power frequency control of the utility model.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
as shown in Figure 1, a kind of frequency changer circuit for the high-power frequency control of the utility model, comprise rectification circuit, filter circuit, braking circuit and inverter circuit, the cathode output end of rectification circuit is connected with cathode output end with the electrode input end of filter circuit and is connected with negative input, the cathode output end of filter circuit is connected with cathode output end with the electrode input end of braking circuit and is connected with negative input, the cathode output end of braking circuit is connected with cathode output end with the electrode input end of inverter circuit and is connected with negative input, rectification circuit comprises the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6, the 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10, the 11 diode D11 and the 12 diode D12, the first-phase input of three-phase alternating current connects respectively at the positive pole of the 4th diode D4 and the negative pole of the 7th diode D7, the negative pole of the 4th diode D4 is connected with the positive pole of the first diode D1, the negative pole of the first diode D1 is connected with the negative pole of the 3rd diode D3 with the negative pole of the second diode D2 respectively, the positive pole of the second diode D2 is connected with the negative pole of the 5th diode D5, the second-phase input of three-phase alternating current is connected with the negative pole of the 8th diode D8 with the positive pole of the 5th diode D5 respectively, the positive pole of the 8th diode D8 is connected with the negative pole of the 11 diode D11, the positive pole of the 11 diode D11 is connected with the positive pole of the 12 diode D12 with the positive pole of the tenth diode D10 respectively, the negative pole of the tenth diode D10 is connected with the positive pole of the 7th diode D7, the negative pole of the 12 diode D12 is connected with the positive pole of the 9th diode D9, the third phase input of three-phase alternating current is connected with the negative pole of the 9th diode D9 with the positive pole of the 6th resistance respectively, the negative pole of the 3rd diode D3 is the cathode output end of rectification circuit, the cathode output end of the just very rectification circuit of the 12 diode D12.
Filter circuit comprises the first resistance R 1, the second resistance R 2, the 4th resistance R 4, K switch s, the first capacitor C 1 and the second capacitor C 2, the first end of the 4th resistance R 4 is connected with the negative pole of the 3rd diode D3 with the first end of K switch s respectively, the second end of the 4th resistance R 4 respectively with the first end of the first resistance R 1 be connected the first end of capacitor C 1 and be connected, the second end of the first resistance R 1 is connected with the first end of the second resistance R 2, and the second end of the first capacitor C 1 is connected with the positive pole of the 12 diode D12 with the first end of the second capacitor C 2 respectively.
Braking circuit comprises the 3rd resistance R 3 and the 13 insulated gate bipolar transistor VT13, the first end of the 3rd resistance R 3 is connected with the second end of K switch s, the second end of the 3rd resistance R 3 is connected with the collector electrode of the 13 insulated gate bipolar transistor VT13, and the emitter of the 13 insulated gate bipolar transistor is connected with the second end of the second capacitor C 2.
inverter circuit comprises the first insulated gate bipolar transistor VT1, the second insulated gate bipolar transistor VT2, the 3rd insulated gate bipolar transistor VT3, the 4th insulated gate bipolar transistor VT4, the 5th insulated gate bipolar transistor VT5, the 6th insulated gate bipolar transistor VT6, the 7th insulated gate bipolar transistor VT7, the 8th insulated gate bipolar transistor VT8, the 9th insulated gate bipolar transistor VT9, the tenth insulated gate bipolar transistor VT10, the 11 insulated gate bipolar transistor VT11, the 12 insulated gate bipolar transistor VT12, the 13 diode VT13, the 14 diode VT14, the 15 diode VT15, the 16 diode VT16VT16, the 17 diode VT17, the 18 diode VT18, the 19 diode VT19, the 20 diode VT20, the 21 diode VT21, the 22 diode VT22, the 23 diode VT23 and the 24 diode VT24, the collector electrode of the first insulated gate bipolar transistor VT1 respectively with the negative pole of the 13 diode VT13, the collector electrode of the second insulated gate bipolar transistor VT2, the negative pole of the 14 diode VT14, the collector electrode of the 3rd insulated gate bipolar transistor VT3, the first end of the negative pole of the 15 diode VT15 and the 3rd resistance R 3 connects, the emitter of the first insulated gate bipolar transistor VT1 respectively with the collector electrode of the 4th insulated gate bipolar transistor VT4, the negative pole of the positive pole of the 13 diode VT13 and the 16 diode VT16VT16 connects, the emitter of the 3rd insulated gate bipolar transistor VT3 respectively with the collector electrode of the 6th insulated gate bipolar transistor VT6, the negative pole of the positive pole of the 15 diode VT15 and the 18 diode VT18 connects, the emitter of the 4th insulated gate bipolar transistor VT4 respectively with the positive pole of the 16 diode VT16VT16, the collector electrode of the 7th insulated gate bipolar transistor VT7, the negative pole of the 19 diode VT19 is connected the first-phase output and is connected with three-phase alternating current, the emitter of the 5th insulated gate bipolar transistor VT5 respectively with the positive pole of the 17 diode VT17, the collector electrode of the 8th insulated gate bipolar transistor VT8, the negative pole of the 20 diode VT20 is connected the second-phase output and is connected with three-phase alternating current, the emitter of the 6th insulated gate bipolar transistor VT6 respectively with the positive pole of the 18 diode VT18, the collector electrode of the 9th insulated gate bipolar transistor VT9, the negative pole of the 21 diode VT21 is connected with three-phase alternating current third phase output, and the collector electrode of the 7th insulated gate bipolar transistor VT7 is respectively at the positive pole of the 19 diode VT19, the negative pole of the collector electrode of the tenth insulated gate bipolar transistor VT10 and the 22 diode VT22 connects, and the emitter of the 8th insulated gate bipolar transistor VT8 is respectively at the collector electrode of the 11 insulated gate bipolar transistor VT11, the negative pole of the positive pole of the 20 diode VT20 and the 23 diode VT23 connects, the emitter of the 9th insulated gate bipolar transistor VT9 respectively with the collector electrode of the 12 insulated gate bipolar transistor VT12, the negative pole of the positive pole of the 21 diode VT21 and the 24 diode VT24 connects, and the emitter of the tenth insulated gate bipolar transistor VT10 is respectively at the positive pole of the 22 diode VT22, the emitter of the 11 insulated gate bipolar transistor VT11, the positive pole of the 23 diode VT23, the emitter of the 12 insulated gate bipolar transistor VT12, the emitter of the positive pole of the 24 diode VT24 and the 13 insulated gate bipolar transistor VT13 connects.
Use the operation principle of a kind of frequency changer circuit for the high-power frequency control of the utility model as follows:
the first diode D1～the 12 diode D12 forms the uncontrollable rectifier bridge of three-phase, change three-phase alternating current into direct current, voltage after rectification is pulse voltage, must connect filter circuit filtering in addition, may surpass the synchronous speed of this moment and be in the regenerative braking state for the rotating speed that prevents motor rotor when slowing down simultaneously, the kinetic energy of dragging system will feed back in DC circuit and make the voltage of dc bus constantly increase, can make the frequency converter overvoltage like this, even may damage frequency converter, therefore need to this feedback energy be consumed with braking circuit, the inverter bridge that the first insulated gate bipolar transistor VT1～the 12 insulated gate bipolar transistor VT12 forms becomes all adjustable alternating currents of electric voltage frequency and amplitude with dc inverter, thereby reached the purpose of frequency control.
Claims (4)
1. frequency changer circuit that is used for the high-power frequency control, it is characterized in that: comprise rectification circuit, filter circuit, braking circuit and inverter circuit, the cathode output end of described rectification circuit is connected with cathode output end with the electrode input end of described filter circuit and is connected with negative input, the cathode output end of described filter circuit is connected with cathode output end with the electrode input end of described braking circuit and is connected with negative input, the cathode output end of described braking circuit is connected with cathode output end with the electrode input end of described inverter circuit and is connected with negative input, described rectification circuit comprises the first diode, the second diode, the 3rd diode, the 4th diode, the 5th diode, the 6th diode, the 7th diode, the 8th diode, the 9th diode, the tenth diode, the 11 diode and the 12 diode, the first-phase input of three-phase alternating current respectively at the positive pole of described the 4th diode be connected the negative pole of the 7th diode and connect, the negative pole of described the 4th diode is connected with the positive pole of described the first diode, the negative pole of described the first diode respectively with the negative pole of described the second diode be connected the negative pole of the 3rd diode and be connected, the positive pole of described the second diode is connected with the negative pole of described the 5th diode, the second-phase input of three-phase alternating current is connected with the negative pole of described the 8th diode with the positive pole of described the 5th diode respectively, the positive pole of described the 8th diode is connected with the negative pole of described the 11 diode, the positive pole of described the 11 diode respectively with the positive pole of described the tenth diode be connected the positive pole of the 12 diode and be connected, the negative pole of described the tenth diode is connected with the positive pole of described the 7th diode, the negative pole of described the 12 diode is connected with the positive pole of described the 9th diode, the third phase input of three-phase alternating current respectively with the positive pole of described the 6th resistance be connected the negative pole of the 9th diode and be connected, the negative pole of described the 3rd diode is the cathode output end of described rectification circuit, the cathode output end of the just very described rectification circuit of described the 12 diode.
2. a kind of frequency changer circuit for the high-power frequency control according to claim 1, it is characterized in that: described filter circuit comprises the first resistance, the second resistance, the 4th resistance, switch, the first electric capacity and the second electric capacity, the first end of described the 4th resistance respectively with the first end of described switch be connected the negative pole of the 3rd diode and be connected, the second end of described the 4th resistance respectively with the first end of described the first resistance be connected the first end of the first electric capacity and be connected, the second end of described the first resistance is connected with the first end of described the second resistance, the second end of described the first electric capacity respectively with the first end of described the second electric capacity be connected the positive pole of the 12 diode and be connected.
3. a kind of frequency changer circuit for the high-power frequency control according to claim 1, it is characterized in that: described braking circuit comprises the 3rd resistance and the 13 insulated gate bipolar transistor, the first end of described the 3rd resistance is connected with the second end of described switch, the second end of described the 3rd resistance is connected with the collector electrode of described the 13 insulated gate bipolar transistor, and described is that the emitter of three insulated gate bipolar transistors is connected with the second end of described the second electric capacity.
4. a kind of frequency changer circuit for the high-power frequency control according to claim 1, it is characterized in that: described inverter circuit comprises the first insulated gate bipolar transistor, the second insulated gate bipolar transistor, the 3rd insulated gate bipolar transistor, the 4th insulated gate bipolar transistor, the 5th insulated gate bipolar transistor, the 6th insulated gate bipolar transistor, the 7th insulated gate bipolar transistor, the 8th insulated gate bipolar transistor, the 9th insulated gate bipolar transistor, the tenth insulated gate bipolar transistor, the 11 insulated gate bipolar transistor, the 12 insulated gate bipolar transistor, the 13 diode, the 14 diode, the 15 diode, the 16 diode, the 17 diode, the 18 diode, the 19 diode, the 20 diode, the 21 diode, the 22 diode, the 23 diode and the 24 diode, the collector electrode of described the first insulated gate bipolar transistor respectively with the negative pole of described the 13 diode, the collector electrode of described the second insulated gate bipolar transistor, the negative pole of described the 14 diode, the collector electrode of described the 3rd insulated gate bipolar transistor, the negative pole of described the 15 diode be connected the first end of the 3rd resistance and connect, the emitter of described the first insulated gate bipolar transistor respectively with the collector electrode of described the 4th insulated gate bipolar transistor, the positive pole of described the 13 diode be connected the negative pole of the 16 diode and connect, the emitter of described the 3rd insulated gate bipolar transistor respectively with the collector electrode of described the 6th insulated gate bipolar transistor, the positive pole of described the 15 diode be connected the negative pole of the 18 diode and connect, the emitter of described the 4th insulated gate bipolar transistor respectively with the positive pole of described the 16 diode, the collector electrode of described the 7th insulated gate bipolar transistor, the negative pole of described the 19 diode is connected the first-phase output and is connected with three-phase alternating current, the emitter of described the 5th insulated gate bipolar transistor respectively with the positive pole of described the 17 diode, the collector electrode of described the 8th insulated gate bipolar transistor, the negative pole of described the 20 diode is connected the second-phase output and is connected with three-phase alternating current, the emitter of described the 6th insulated gate bipolar transistor respectively with the positive pole of described the 18 diode, the collector electrode of described the 9th insulated gate bipolar transistor, the negative pole of described the 21 diode is connected with three-phase alternating current third phase output, and the collector electrode of described the 7th insulated gate bipolar transistor is respectively at the positive pole of described the 19 diode, the collector electrode of described the tenth insulated gate bipolar transistor be connected the negative pole of the 22 diode and connect, the emitter of described the 8th insulated gate bipolar transistor is respectively at the collector electrode of described the 11 insulated gate bipolar transistor, the positive pole of described the 20 diode be connected the negative pole of the 23 diode and connect, the emitter of described the 9th insulated gate bipolar transistor respectively with the collector electrode of described the 12 insulated gate bipolar transistor, the positive pole of described the 21 diode be connected the negative pole of the 24 diode and connect, the emitter of described the tenth insulated gate bipolar transistor is respectively at the positive pole of described the 22 diode, the emitter of described the 11 insulated gate bipolar transistor, the positive pole of described the 23 diode, the emitter of described the 12 insulated gate bipolar transistor, the positive pole of described the 24 diode be connected the emitter of the 13 insulated gate bipolar transistor and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203363402U CN203289379U (en) | 2013-06-13 | 2013-06-13 | A frequency conversion circuit for converting frequency and regulating speed of AC with high voltage and large power |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203363402U CN203289379U (en) | 2013-06-13 | 2013-06-13 | A frequency conversion circuit for converting frequency and regulating speed of AC with high voltage and large power |
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| CN203289379U true CN203289379U (en) | 2013-11-13 |
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| CN2013203363402U Expired - Fee Related CN203289379U (en) | 2013-06-13 | 2013-06-13 | A frequency conversion circuit for converting frequency and regulating speed of AC with high voltage and large power |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242676A (en) * | 2013-06-13 | 2014-12-24 | 成都昊地科技有限责任公司 | Frequency conversion circuit used for high-voltage and high-power frequency control |
| CN106464159A (en) * | 2014-06-17 | 2017-02-22 | 株式会社明电舍 | Resonant load power conversion device and time division operation method for resonant load power conversion device |
| CN107994781A (en) * | 2017-12-25 | 2018-05-04 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
-
2013
- 2013-06-13 CN CN2013203363402U patent/CN203289379U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104242676A (en) * | 2013-06-13 | 2014-12-24 | 成都昊地科技有限责任公司 | Frequency conversion circuit used for high-voltage and high-power frequency control |
| CN106464159A (en) * | 2014-06-17 | 2017-02-22 | 株式会社明电舍 | Resonant load power conversion device and time division operation method for resonant load power conversion device |
| CN106464159B (en) * | 2014-06-17 | 2019-01-01 | 株式会社明电舍 | Resonant load power conversion apparatus and one-at-a-time operation method for resonant load power conversion apparatus |
| CN107994781A (en) * | 2017-12-25 | 2018-05-04 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
| CN107994781B (en) * | 2017-12-25 | 2019-11-15 | 西安西驰电气股份有限公司 | A kind of converter plant and its control method |
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