CN105553380A - Speed regulation device for rotor side of high-voltage winding motor - Google Patents
Speed regulation device for rotor side of high-voltage winding motor Download PDFInfo
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- CN105553380A CN105553380A CN201610092429.7A CN201610092429A CN105553380A CN 105553380 A CN105553380 A CN 105553380A CN 201610092429 A CN201610092429 A CN 201610092429A CN 105553380 A CN105553380 A CN 105553380A
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- 238000004804 winding Methods 0.000 title claims abstract description 34
- 239000007788 liquid Substances 0.000 claims description 17
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
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- 101000919674 Caenorhabditis elegans CCR4-NOT transcription complex subunit let-711 Proteins 0.000 description 2
- 101000919672 Homo sapiens CCR4-NOT transcription complex subunit 1 Proteins 0.000 description 2
- 102100029469 WD repeat and HMG-box DNA-binding protein 1 Human genes 0.000 description 2
- 101710097421 WD repeat and HMG-box DNA-binding protein 1 Proteins 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
Abstract
The invention discloses a speed regulation device for the rotor side of a high-voltage winding motor. A short-circuit contactor, a fluid resistance start unit and a rectifier are respectively connected with the rotor side of the high-voltage winding motor in parallel; the input end of the rectifier is connected with the rotor side of the high-voltage winding motor via a rotor-side contactor, while the output end positive electrode of the rectifier is connected with the input end positive electrode of an inverter via a first electric reactor, a check diode and a second electric reactor connected in series; the positive electrode of the check diode is connected with the collector of a chopping switch; the emitter of the chopping switch is connected with the output end negative electrode of the rectifier; the output end negative electrode of the rectifier is connected with the input end negative electrode of the inserter; and the alternating current output end of the inverter is connected with the stator side of the high-voltage winding motor via an inverter side contactor, a fusing protection unit and an inverter transformer connected in series. According to the speed regulation device, the deficiencies in the prior art can be overcome, the high-voltage rotor frequency converter can be simpler in structure, and greatly reduced in size.
Description
Technical field
The present invention relates to high-voltage motor speed adjusting technique field, especially a kind of high-tension winding rotor side speed regulating device.
Background technology
High pressure rotor frequency converter is a kind of high-tension winding motor speed regulation equipment grown up in recent years, is generally used for the high-tension winding motor of Driving Fan load of the pumps.Widely use at multiple fields such as electric power, building materials, water conservancy, city heat supply, water supply.
High pressure rotor frequency converter speed regulating device in the market is generally configured to bypass starting cabinet, rectification variable-frequency cabinet, inverter cabinet and transformer case.Device is generally made up of three to five cupboards, and complex structure volume is too fat to move.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of high-tension winding rotor side speed regulating device, can solve the deficiencies in the prior art, and make high pressure rotor frequency changer more simple, volume significantly reduces.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows.
A kind of high-tension winding rotor side speed regulating device, the rotor-side of high-tension winding motor is connected in parallel to short circuit contactor respectively, liquid resistance start unit and rectifier, the input of rectifier is connected with the rotor-side of high-tension winding motor by rotor-side contactor, first reactor of output head anode by connecting of rectifier, check diode and the second reactor are connected to the input anode of inverter, the positive pole of check diode is connected to the collector electrode of chopping switch, the emitter of chopping switch is connected to the negative pole of output end of rectifier, the negative pole of check diode is connected to the negative pole of output end of rectifier (U) by the first electric capacity, the two ends of the first electric capacity are parallel with protection diode, the negative pole of output end of rectifier is connected with the input cathode of inverter, the inverter side contactor of ac output end by connecting of inverter, fuse protection unit and contravariant transformer are connected to the stator side of high-tension winding motor, the low-pressure side of contravariant transformer is connected with fuse protection unit, the high-pressure side of contravariant transformer is connected with the stator side of high-tension winding motor.
As preferably, described short circuit contactor one end is connected with the rotor-side of high-tension winding motor, other end Y-connection.
As preferably, described liquid resistance start unit comprises liquid resistance cut-in and cut-off contactor, and one end of liquid resistance cut-in and cut-off contactor connects the rotor-side of high-tension winding motor, Y-connection after the resistance of other end series connection liquid.
As preferably, described inverter comprises three-phase full-bridge inverter and the inverter control circuit for controlling three-phase full-bridge inverter.
As preferably, described inverter control circuit comprises 50Hz and exchanges reference signal source, 50Hz exchanges first variable resistor of reference signal source by series connection, first resistance and the 3rd electric capacity are connected to the positive input of the first amplifier, the reverse input end ground connection of the first amplifier, the 3rd diode and the 4th diode is parallel with between the positive input of the first amplifier and reverse input end, 3rd diode and the parallel connection of the 4th diode reverse, , by the second capacity earth between first resistance and the 3rd electric capacity, the output of the first amplifier is connected to the AIN pin of phase-locked loop chip, the INH pin ground connection of phase-locked loop chip, the CA pin of phase-locked loop chip is connected by the 4th electric capacity with CB pin, the R1 pin of phase-locked loop chip passes through the 3rd resistance and the second adjustable resistance ground connection of series connection, the R2 pin of phase-locked loop chip is by the 4th grounding through resistance, the AIN pin of phase-locked loop chip is connected to high level by the second resistance, the PC1 pin of phase-locked loop chip is connected to the VCIN pin of phase-locked loop chip by the 5th resistance, the VCIN pin of phase-locked loop chip is by the 5th capacity earth, the VCOUT pin of phase-locked loop chip is by the 4th grounding through resistance, the VCOUT pin of phase-locked loop chip is connected to the CLK pin of frequency divider chip, the RST pin ground connection of frequency divider chip, the Q7 pin of frequency divider chip is connected to the RST pin of shift register chip by the 6th resistance of series connection and the 7th resistance, 6th resistance and the 7th resistance indirectly, the Q2 pin of shift register chip is connected to the input of the first NOT gate chip, output and the BIN pin being connected to phase-locked loop chip of the first NOT gate chip are connected to the D pin of shift register chip jointly, the RST pin of shift register chip is connected to high level by the 6th electric capacity, the D pin of shift register chip is connected to the RST pin of counter chip by the 7th electric capacity, the CLK pin of shift register chip and the Q7 pin of frequency divider chip are connected to the CLK pin of counter chip jointly, the RST pin of counter chip is by the 8th grounding through resistance, 8th resistance two ends reverse parallel connection has the 5th diode, the ENA pin ground connection of counter chip, the Q0 pin of counter chip and Q1 pin are connected to two outputs of first or door respectively, the Q1 pin of counter chip and Q2 pin are connected to two outputs of second or door respectively, the Q2 pin of counter chip and Q3 pin are connected to two outputs of the 3rd or door respectively, the Q3 pin of counter chip and Q4 pin are connected to two outputs of the 4th or door respectively, the Q4 pin of counter chip and Q5 pin are connected to two outputs of the 5th or door respectively, the Q5 pin of counter chip and Q0 pin are connected to two outputs of the 6th or door respectively, first or door, second or door, 3rd or the family status four or door, 5th or door and the 6th or the output of door be connected to respectively second with door (, 3rd and door, 4th and door, 5th and door, 6th with door and the 7th with the input of door, the CLK pin of the Q6 pin sum counter chip of frequency divider chip is connected to the input of first and door respectively, first is connected to second and door respectively with the output of door, 3rd and door, 4th and door, 5th and door, 6th with door and the 7th with the input of door, second and door, 3rd and door, 4th and door, 5th and door, 6th is connected to the control pole of six thyristors in three-phase full-bridge inverter with door and the 7th respectively with the output of door.
The beneficial effect adopting technique scheme to bring is: present invention optimizes bypass design, make bypass to be totally independent of system works, enhance the reliability of device.The volume of device reduces greatly again, and structure is more reasonable.Short circuit contactor and liquid resistance start unit are incorporated in a cupboard inside synthesis bypass starting cabinet; bypass cabinet is arranged to distant place pattern separately and upper machine communication; or with regard to ground mode and inverter communication two kinds of patterns; like this can under the pattern of a bypass cabinet distant place; the direct power-off of frequency converter and do not affect the use of bypass cabinet, the liquid resistance that still can realize motor starts and shuts down.AC-DC-AC converter part is all concentrated in a cabinet and calls frequency conversion tank, contravariant transformer is arranged separately a cupboard, if dragging motor is inner-feeding motor, does not need transformer.Equipment volume reduces greatly.In addition, by improving the control circuit of inverter, improve the stability of inverter current.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the present invention's embodiment.
Fig. 2 is the anterior circuit diagram of inverter control circuit in the present invention's embodiment.
Fig. 3 is the front and rear part circuit diagram of inverter control circuit in the present invention's embodiment.
Embodiment
With reference to Fig. 1-3, the rotor-side of high-tension winding motor M is connected in parallel to short circuit contactor K1 respectively, liquid resistance start unit K2 and rectifier U, the input of rectifier U is connected with the rotor-side of high-tension winding motor M by rotor-side contactor K3, the first reactor L1 of output head anode by connecting of rectifier U, check diode D1 and the second reactor L2 is connected to the input anode of inverter UI, the positive pole of check diode D1 is connected to the collector electrode of chopping switch Q1, the emitter of chopping switch Q1 is connected to the negative pole of output end of rectifier U, the negative pole of check diode D1 is connected to the negative pole of output end of rectifier U by the first electric capacity C1, the two ends of the first electric capacity C1 are parallel with protection diode D2, the negative pole of output end of rectifier U is connected with the input cathode of inverter UI, the inverter side contactor K4 of ac output end by connecting of inverter UI, fuse protection unit F u and contravariant transformer T is connected to the stator side of high-tension winding motor M, the low-pressure side of contravariant transformer is connected with fuse protection unit F u, the high-pressure side of contravariant transformer is connected with the stator side of high-tension winding motor M.Short circuit contactor K1 one end is connected with the rotor-side of high-tension winding motor M, other end Y-connection.Liquid resistance start unit K2 comprises liquid resistance cut-in and cut-off contactor, and one end of liquid resistance cut-in and cut-off contactor connects the rotor-side of high-tension winding motor M, Y-connection after the resistance of other end series connection liquid.Inverter UI comprises three-phase full-bridge inverter and the inverter control circuit for controlling three-phase full-bridge inverter.Inverter control circuit comprises 50Hz and exchanges reference signal source IN, 50Hz exchanges the first variable resistor RP1 of reference signal source IN by series connection, first resistance R1 and the 3rd electric capacity C3 is connected to the positive input of the first amplifier A1, the reverse input end ground connection of the first amplifier A1, the 3rd diode D3 and the 4th diode D4 is parallel with between the positive input of the first amplifier A1 and reverse input end, 3rd diode D3 and the 4th diode D4 reverse parallel connection, , by the second electric capacity C2 ground connection between first resistance R1 and the 3rd electric capacity C3, the output of the first amplifier A1 is connected to the AIN pin of phase-locked loop chip IC1, the INH pin ground connection of phase-locked loop chip IC1, the CA pin of phase-locked loop chip IC1 is connected by the 4th electric capacity C4 with CB pin, the R1 pin of phase-locked loop chip IC1 passes through the 3rd resistance R3 and the second adjustable resistance RP2 ground connection of series connection, the R2 pin of phase-locked loop chip IC1 is by the 4th resistance R4 ground connection, the AIN pin of phase-locked loop chip IC1 is connected to high level VCC by the second resistance R2, the PC1 pin of phase-locked loop chip IC1 is connected to the VCIN pin of phase-locked loop chip IC1 by the 5th resistance R5, the VCIN pin of phase-locked loop chip IC1 is by the 5th electric capacity C5 ground connection, the VCOUT pin of phase-locked loop chip IC1 is by the 4th resistance R4 ground connection, the VCOUT pin of phase-locked loop chip IC1 is connected to the CLK pin of frequency divider chip IC 2, the RST pin ground connection of frequency divider chip IC 2, the Q7 pin of frequency divider chip IC 2 is connected to the RST pin of shift register chip IC 3 by the 6th resistance R6 of series connection and the 7th resistance R7, 6th resistance R6 and the 7th resistance R7 indirectly, the Q2 pin of shift register chip IC 3 is connected to the input of the first NOT gate chip NOT1, output and the BIN pin being connected to phase-locked loop chip IC1 of the first NOT gate chip NOT1 are connected to the D pin of shift register chip IC 3 jointly, the RST pin of shift register chip IC 3 is connected to high level VCC by the 6th electric capacity C6, the D pin of shift register chip IC 3 is connected to the RST pin of counter chip IC4 by the 7th electric capacity C7, the CLK pin of shift register chip IC 3 and the Q7 pin of frequency divider chip IC 2 are connected to the CLK pin of counter chip IC4 jointly, the RST pin of counter chip IC4 is by the 8th resistance R8 ground connection, 8th resistance R8 two ends reverse parallel connection has the 5th diode D5, the ENA pin ground connection of counter chip IC4, the Q0 pin of counter chip IC4 and Q1 pin are connected to two outputs of first or door OR1 respectively, the Q1 pin of counter chip IC4 and Q2 pin are connected to two outputs of second or door OR2 respectively, the Q2 pin of counter chip IC4 and Q3 pin are connected to two outputs of the 3rd or door OR3 respectively, the Q3 pin of counter chip IC4 and Q4 pin are connected to two outputs of the 4th or door OR4 respectively, the Q4 pin of counter chip IC4 and Q5 pin are connected to two outputs of the 5th or door OR5 respectively, the Q5 pin of counter chip IC4 and Q0 pin are connected to two outputs of the 6th or door OR6 respectively, first or door OR1, second or door OR2, 3rd or door OR3 the 4th or door OR4, 5th or the output of door OR5 and the 6th or door OR6 be connected to respectively second with door AND2, 3rd with door AND3, 4th with door AND4, 5th with door AND5, 6th with the input of door AND6 and the 7th and door AND7, the CLK pin of the Q6 pin sum counter chip IC 4 of frequency divider chip IC 2 is connected to the input of first and door AND1 respectively, first is connected to second and door AND2 respectively with the output of door AND1, 3rd with door AND3, 4th with door AND4, 5th with door AND5, 6th with the input of door AND6 and the 7th and door AND7, second with door AND2, 3rd with door AND3, 4th with door AND4, 5th with door AND5, 6th is connected to the control pole of six thyristors in three-phase full-bridge inverter respectively with the output of door AND6 and the 7th and door AND7.
Phase-locked loop chip IC1 adopts CD4046 chip, and frequency divider chip IC 2 adopts CD4040 chip, and shift register chip IC 3 adopts CD4015 chip, and counter chip IC4 adopts CD4017 chip.
The electric elements used in the present embodiment are commercially available prod, and its concrete structure and using method belong to ripe prior art, are not described in detail in this.
More than show and describe general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (5)
1. high-tension winding rotor side speed regulating device, it is characterized in that: the rotor-side of high-tension winding motor (M) is connected in parallel to short circuit contactor (K1) respectively, liquid resistance start unit (K2) and rectifier (U), the input of rectifier (U) is connected with the rotor-side of high-tension winding motor (M) by rotor-side contactor (K3), first reactor (L1) of output head anode by connecting of rectifier (U), check diode (D1) and the second reactor (L2) are connected to the input anode of inverter (UI), the positive pole of check diode (D1) is connected to the collector electrode of chopping switch (Q1), the emitter of chopping switch (Q1) is connected to the negative pole of output end of rectifier (U), the negative pole of check diode (D1) is connected to the negative pole of output end of rectifier (U) by the first electric capacity (C1), the two ends of the first electric capacity (C1) are parallel with protection diode (D2), the negative pole of output end of rectifier (U) is connected with the input cathode of inverter (UI), the inverter side contactor (K4) of ac output end by connecting of inverter (UI), fuse protection unit (Fu) and contravariant transformer (T) are connected to the stator side of high-tension winding motor (M), the low-pressure side of contravariant transformer is connected with fuse protection unit (Fu), the high-pressure side of contravariant transformer is connected with the stator side of high-tension winding motor (M).
2. high-tension winding rotor side according to claim 1 speed regulating device, is characterized in that: described short circuit contactor (K1) one end is connected with the rotor-side of high-tension winding motor (M), other end Y-connection.
3. high-tension winding rotor side according to claim 1 speed regulating device, it is characterized in that: described liquid resistance start unit (K2) comprises liquid resistance cut-in and cut-off contactor, one end of liquid resistance cut-in and cut-off contactor connects the rotor-side of high-tension winding motor (M), Y-connection after the resistance of other end series connection liquid.
4. high-tension winding rotor side according to claim 1 speed regulating device, is characterized in that: described inverter (UI) comprises three-phase full-bridge inverter and the inverter control circuit for controlling three-phase full-bridge inverter.
5. high-tension winding rotor side according to claim 4 speed regulating device, it is characterized in that: described inverter control circuit comprises 50Hz and exchanges reference signal source (IN), 50Hz exchanges first variable resistor (RP1) of reference signal source (IN) by series connection, first resistance (R1) and the 3rd electric capacity (C3) are connected to the positive input of the first amplifier (A1), the reverse input end ground connection of the first amplifier (A1), the 3rd diode (D3) and the 4th diode (D4) is parallel with between the positive input of the first amplifier (A1) and reverse input end, 3rd diode (D3) and the 4th diode (D4) reverse parallel connection, by the second electric capacity (C2) ground connection between first resistance (R1) and the 3rd electric capacity (C3), the output of the first amplifier (A1) is connected to the AIN pin of phase-locked loop chip (IC1), the INH pin ground connection of phase-locked loop chip (IC1), the CA pin of phase-locked loop chip (IC1) is connected by the 4th electric capacity (C4) with CB pin, the R1 pin of phase-locked loop chip (IC1) passes through the 3rd resistance (R3) and the second adjustable resistance (RP2) ground connection of series connection, the R2 pin of phase-locked loop chip (IC1) is by the 4th resistance (R4) ground connection, the AIN pin of phase-locked loop chip (IC1) is connected to high level (VCC) by the second resistance (R2), the PC1 pin of phase-locked loop chip (IC1) is connected to the VCIN pin of phase-locked loop chip (IC1) by the 5th resistance (R5), the VCIN pin of phase-locked loop chip (IC1) is by the 5th electric capacity (C5) ground connection, the VCOUT pin of phase-locked loop chip (IC1) is by the 4th resistance (R4) ground connection, the VCOUT pin of phase-locked loop chip (IC1) is connected to the CLK pin of frequency divider chip (IC2), the RST pin ground connection of frequency divider chip (IC2), the Q7 pin of frequency divider chip (IC2) is connected to the RST pin of shift register chip (IC3) by the 6th resistance (R6) of series connection and the 7th resistance (R7), 6th resistance (R6) and the 7th resistance (R7) indirectly, the Q2 pin of shift register chip (IC3) is connected to the input of the first NOT gate chip (NOT1), output and the BIN pin being connected to phase-locked loop chip (IC1) of the first NOT gate chip (NOT1) are connected to the D pin of shift register chip (IC3) jointly, the RST pin of shift register chip (IC3) is connected to high level (VCC) by the 6th electric capacity (C6), the D pin of shift register chip (IC3) is connected to the RST pin of counter chip (IC4) by the 7th electric capacity (C7), the CLK pin of shift register chip (IC3) and the Q7 pin of frequency divider chip (IC2) are connected to the CLK pin of counter chip (IC4) jointly, the RST pin of counter chip (IC4) is by the 8th resistance (R8) ground connection, 8th resistance (R8) two ends reverse parallel connection has the 5th diode (D5), the ENA pin ground connection of counter chip (IC4), the Q0 pin of counter chip (IC4) and Q1 pin are connected to two outputs of first or door (OR1) respectively, the Q1 pin of counter chip (IC4) and Q2 pin are connected to two outputs of second or door (OR2) respectively, the Q2 pin of counter chip (IC4) and Q3 pin are connected to two outputs of the 3rd or door (OR3) respectively, the Q3 pin of counter chip (IC4) and Q4 pin are connected to two outputs of the 4th or door (OR4) respectively, the Q4 pin of counter chip (IC4) and Q5 pin are connected to two outputs of the 5th or door (OR5) respectively, the Q5 pin of counter chip (IC4) and Q0 pin are connected to two outputs of the 6th or door (OR6) respectively, first or door (OR1), second or door (OR2), 3rd or door (OR3) the 4th or door (OR4), 5th or door (OR5) and the 6th or the output of door (OR6) be connected to respectively second with door (AND2), 3rd with door (AND3), 4th with door (AND4), 5th with door (AND5), 6th with door (AND6) and the 7th and the input of door (AND7), the CLK pin of Q6 pin sum counter chip (IC4) of frequency divider chip (IC2) is connected to the input of first and door (AND1) respectively, first is connected to second and door (AND2) respectively with the output of door (AND1), 3rd with door (AND3), 4th with door (AND4), 5th with door (AND5), 6th with door (AND6) and the 7th and the input of door (AND7), second with door (AND2), 3rd with door (AND3), 4th with door (AND4), 5th with door (AND5), 6th is connected to the control pole of six thyristors in three-phase full-bridge inverter with door (AND6) and the 7th respectively with the output of door (AND7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092429.7A CN105553380A (en) | 2016-02-19 | 2016-02-19 | Speed regulation device for rotor side of high-voltage winding motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092429.7A CN105553380A (en) | 2016-02-19 | 2016-02-19 | Speed regulation device for rotor side of high-voltage winding motor |
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| CN105553380A true CN105553380A (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610092429.7A Pending CN105553380A (en) | 2016-02-19 | 2016-02-19 | Speed regulation device for rotor side of high-voltage winding motor |
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| JPH11178380A (en) * | 1997-12-10 | 1999-07-02 | Nippon Densan Shinpo Kk | Motor speed controller |
| CN201191814Y (en) * | 2008-04-07 | 2009-02-04 | 黄中军 | AC electric motor speed regulating control device |
| CN202231672U (en) * | 2011-09-30 | 2012-05-23 | 尤江峰 | Full-automatic variable-frequency speed regulation device for high-pressure rotor |
| CN202889174U (en) * | 2012-10-19 | 2013-04-17 | 保定优科电气科技有限责任公司 | Maintenance-free high-voltage rotor frequency converter |
| CN203243230U (en) * | 2013-04-12 | 2013-10-16 | 保定优科电气科技有限责任公司 | High-voltage rotor frequency converter preventing chopper from being damaged during inversion overturn process |
| CN103973127A (en) * | 2014-05-20 | 2014-08-06 | 保定优科电气科技有限责任公司 | High-voltage rotor frequency converter with single wave chopping tube |
| CN205490289U (en) * | 2016-02-19 | 2016-08-17 | 尤江峰 | High pressure winding motor rotor side speed adjusting device |
-
2016
- 2016-02-19 CN CN201610092429.7A patent/CN105553380A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11178380A (en) * | 1997-12-10 | 1999-07-02 | Nippon Densan Shinpo Kk | Motor speed controller |
| CN201191814Y (en) * | 2008-04-07 | 2009-02-04 | 黄中军 | AC electric motor speed regulating control device |
| CN202231672U (en) * | 2011-09-30 | 2012-05-23 | 尤江峰 | Full-automatic variable-frequency speed regulation device for high-pressure rotor |
| CN202889174U (en) * | 2012-10-19 | 2013-04-17 | 保定优科电气科技有限责任公司 | Maintenance-free high-voltage rotor frequency converter |
| CN203243230U (en) * | 2013-04-12 | 2013-10-16 | 保定优科电气科技有限责任公司 | High-voltage rotor frequency converter preventing chopper from being damaged during inversion overturn process |
| CN103973127A (en) * | 2014-05-20 | 2014-08-06 | 保定优科电气科技有限责任公司 | High-voltage rotor frequency converter with single wave chopping tube |
| CN205490289U (en) * | 2016-02-19 | 2016-08-17 | 尤江峰 | High pressure winding motor rotor side speed adjusting device |
Non-Patent Citations (1)
| Title |
|---|
| 张春雨;李亚斌;王琦;李和明;: "基于FPGA的谐振型逆变器控制电路研究" * |
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