CN112003438A - Switchable output single-phase-three-phase alternating current permanent magnet generator system - Google Patents
Switchable output single-phase-three-phase alternating current permanent magnet generator system Download PDFInfo
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- CN112003438A CN112003438A CN202010960839.5A CN202010960839A CN112003438A CN 112003438 A CN112003438 A CN 112003438A CN 202010960839 A CN202010960839 A CN 202010960839A CN 112003438 A CN112003438 A CN 112003438A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K16/00—Machines with more than one rotor or stator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/48—Generators with two or more outputs
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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
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/44—Control of frequency and voltage in predetermined relation, e.g. constant ratio
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- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention relates to the technical field of power generation, in particular to a switchable output single-phase-three-phase alternating-current permanent magnet generator system which comprises a power input unit, a variable-phase three-phase alternating-current permanent magnet generator unit, a servo execution unit and a power output and switching control unit, wherein the power input unit is connected with the power output unit; the power input unit is mechanically connected with the third end of the variable-phase three-phase alternating-current permanent magnet generator unit and provides power; the first end of the servo execution unit is mechanically connected with the first end of the variable-phase three-phase alternating-current permanent magnet generator unit, and the second end of the servo execution unit is electrically connected with the first end of the power output and switching control unit; the second end of the variable-phase three-phase alternating-current permanent magnet generator unit is electrically connected with the second end of the power output and switching control unit; and the third end of the power output and switching control unit outputs single-phase power or three-phase power. The invention saves the damping winding of the AC generator, greatly saves the energy consumption, and does not influence the total rated power output after switching the single-phase-three-phase output.
Description
Technical Field
The invention relates to the technical field of power generation, in particular to a switchable output single-phase-three-phase alternating-current permanent magnet generator system.
Background
Along with the development of economy, the improvement of science and technology, the generator load type also changes greatly, the existing generator is either a single-phase generator, or a three-phase generator, or the three-phase generator has one third of single-phase generating power, and the existing movable three-phase four-wire system alternating current permanent magnet generator often has the condition that the load is unbalanced or even only needs to use single-phase power when in use, the disadvantage brought by generating power under the condition of unbalanced three-phase load is that the efficiency is obviously reduced, the three-phase generator only supplies single-phase power, and besides the generating efficiency is seriously reduced, the output power of the three-phase generator can only reach about 1/4 of the rated power of the original generator.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a switchable output single-phase-three-phase alternating-current permanent magnet generator system, which adopts the following specific technical scheme.
The switchable output single-phase-three-phase alternating-current permanent magnet generator system comprises a power input unit, a variable-phase three-phase alternating-current permanent magnet generator unit, a servo execution unit and a power output and switching control unit; the power input unit is mechanically connected with the third end of the variable-phase three-phase alternating-current permanent magnet generator unit and provides power; the first end of the servo execution unit is mechanically connected with the first end of the variable-phase three-phase alternating-current permanent magnet generator unit, and the second end of the servo execution unit is electrically connected with the first end of the power output and switching control unit; the second end of the variable-phase three-phase alternating-current permanent magnet generator unit is electrically connected with the second end of the power output and switching control unit; and the third end of the power output and switching control unit outputs single-phase power or three-phase power.
Furthermore, the phase-variable three-phase alternating-current permanent magnet generator unit is formed by sequentially connecting three independent single-phase permanent magnet generators in series through the same rotating shaft, the magnetic field intensity of permanent magnet rotors of the three independent single-phase permanent magnet generators is the same and the same phase, and stators of the three independent single-phase permanent magnet generators are respectively installed and fixed in three independent shells.
Furthermore, the independent shell comprises a fixed shell, a first rotating shell and a second rotating shell which are sequentially arranged on one side of the fixed shell; the first rotating shell and the second rotating shell rotate in opposite directions relative to the fixed shell within an angle range of 0-120 degrees, and when the angle difference between the independent shells is 0 degree, the output voltages of the three independent single-phase permanent magnet generators are the same voltage and the same phase and are connected in parallel to output single-phase electricity; when the angles between the independent shells respectively have a phase difference of 120 degrees, the output voltages of the three independent single-phase permanent magnet generators are the same, the phases of the three independent single-phase permanent magnet generators have a phase difference of 120 degrees, 0 lines output by the three independent single-phase permanent magnet generators are connected in parallel, and then three-phase four-line system voltage is output.
Further, the servo execution unit includes: the gear transmission mechanism comprises a servo motor, a first transmission shaft, a second transmission shaft, a first gear, a second gear, a third gear, a first rotating shell gear and a second rotating shell gear; the servo motor is installed on the fixed shell, first rotatory casing gear setting is at first rotatory casing surface, the rotatory casing gear setting of second is at the rotatory casing surface of second, first gear is connected with second gear and the meshing of first rotatory casing gear simultaneously, first gear and servo motor are connected to first transmission shaft, second gear and third gear are connected to the second transmission shaft, the third gear is connected with the rotatory casing meshing of second.
Furthermore, the servo motor rotates through the power output and the driving instruction of the switching control unit, drives the first transmission shaft and the first gear to rotate synchronously, and simultaneously drives the first rotating shell gear and the second gear to rotate in opposite directions, the second gear drives the third gear to rotate through the connected second transmission shaft, and the third gear drives the second rotating shell gear to rotate synchronously in opposite directions of the first rotating shell gear and the rotating angles of the second rotating shell gear are equal.
Further, the power output and switching control unit includes: the power supply provides electric energy for the MCU, the servo motor driving interface, the limit sensor, the operation input interface and the generator power supply detection and switching device and is controlled and managed by the MCU, the MCU is respectively connected with and controls the servo motor driving interface, the limit sensor, the operation input interface and the generator power supply detection and switching device, the limit sensor is respectively arranged and arranged on 0-degree and 120-degree positions of the first rotary shell and the second rotary shell to ensure that the power supply output and switching control unit controls the servo motor to stop rotating after receiving signals, the servo motor driving interface is used for receiving and transmitting command data between the servo motor and the MCU, the operation input interface is used for receiving and transmitting command data for switching single-phase and three-phase, the generator power supply detection and switching device is used for receiving and transmitting the instruction data of the MCU and then performing single-phase-three-phase switching output.
The invention has the advantages that: because three independent single-phase generators form three-phase power output, mutual interference of magnetic fields cannot be caused when three-phase loads are unbalanced, and a damping winding of an alternating current generator is omitted, the efficiency can still be kept more than 90% under the condition of unbalanced loads, and the energy consumption is greatly saved; in addition, the load of the movable generator is not necessarily three-phase, and the movable generator also has the requirement of supplying single-phase power, so that the stator phase difference of the generator is adjusted to be 0 degree, and the three generators are connected in parallel to output, and the total rated power output cannot be influenced.
Drawings
FIG. 1 is a block diagram of the system architecture of the present invention;
FIG. 2 is a schematic diagram of a variable phase three-phase AC permanent magnet generator according to the present invention;
FIG. 3 is an axial schematic view of a variable phase three-phase AC permanent magnet generator of the present invention outputting three-phase electrical conditions;
FIG. 4 is a schematic top view of FIG. 2;
FIG. 5 is a block diagram of a power output and switching control unit according to the present invention;
in the figure, 1-servo motor, 2-first transmission shaft, 3-first gear, 4-first rotating shell gear, 5-second transmission shaft, 6-third gear, 7-second rotating shell gear, 8-stator, 9-permanent magnet rotor, 10-rotating shaft, 11-second rotating shell, 12-first rotating shell, 13-fixed shell, 14-second gear.
Detailed Description
In order to make the objects, technical solutions and technical effects of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the switchable output single-phase to three-phase ac permanent magnet generator system includes a power input unit, a variable-phase three-phase ac permanent magnet generator unit, a servo execution unit, and a power output and switching control unit; the power input unit is mechanically connected with the third end of the variable-phase three-phase alternating-current permanent magnet generator unit and provides power; the first end of the servo execution unit is mechanically connected with the first end of the variable-phase three-phase alternating-current permanent magnet generator unit, and the second end of the servo execution unit is electrically connected with the first end of the power output and switching control unit; the second end of the variable-phase three-phase alternating-current permanent magnet generator unit is electrically connected with the second end of the power output and switching control unit; and the third end of the power output and switching control unit outputs single-phase power or three-phase power.
As shown in fig. 2 to 4, the phase-variable three-phase ac permanent magnet generator unit is formed by sequentially connecting three independent single-phase permanent magnet generators in series through a same rotating shaft 10, the magnetic field strength of the permanent magnet rotors 9 of the three independent single-phase permanent magnet generators is the same and the same phase, and the stators 8 of the three independent single-phase permanent magnet generators are respectively installed and fixed in three independent shells.
The independent shell comprises a fixed shell, a first rotating shell 12 and a second rotating shell 11 which are sequentially arranged on one side of the fixed shell 13, and the first rotating shell 12 and the second rotating shell 11 can respectively rotate 0-120 degrees in opposite directions relative to the fixed shell 13; when the angle difference between the independent shells is 0 degree, the output voltages of the three independent single-phase permanent magnet generators are the same voltage and the same phase, and are connected in parallel to output single-phase electricity; when the angles between the independent shells respectively have a phase difference of 120 degrees, the output voltages of the three independent single-phase permanent magnet generators are the same, but the phases of the three independent single-phase permanent magnet generators have a phase difference of 120 degrees, 0 lines output by the three independent single-phase permanent magnet generators are connected in parallel, and then three-phase four-line system voltage is output.
The servo execution unit includes: servo motor 1, first transmission shaft 2, second transmission shaft 5, first gear 3, second gear 14, third gear 6, first rotating housing gear 4 and second rotating housing gear 7.
The servo motor 1 is installed on a fixed shell 13, the first rotating shell gear 4 is arranged on the outer surface of a first rotating shell 12, the second rotating shell gear 7 is arranged on the outer surface of a second rotating shell 11, the first gear 3, the second gear 14 and the first rotating shell gear 4 are meshed and connected at the same time, the first transmission shaft 2 is connected with the first gear 3 and the servo motor 1, the second transmission shaft 5 is connected with the second gear 14 and the third gear 6, the third gear 6 is meshed and connected with the second rotating shell 11, the servo motor 1 rotates through a driving instruction of a power output and switching control unit, the first transmission shaft 2 and the first gear 3 are driven to synchronously rotate, the first rotating shell gear 4 and the second gear 14 are driven to rotate in opposite directions, and the second gear 14 drives the third gear 5 to rotate through the connected second transmission shaft 5, the third gear 5 drives the second rotating housing gear 7 to rotate synchronously in the opposite direction of the first rotating housing gear 4 and the rotating angles are equal.
As shown in fig. 5, the power output and switching control unit includes: the power supply provides electric energy for the MCU, the servo motor driving interface, the limit sensor, the operation input interface and the generator power supply detection and switching device and is controlled and managed by the MCU, the MCU is respectively connected with and controls the servo motor driving interface, the limit sensor, the operation input interface and the generator power supply detection and switching device, the limit sensor is respectively arranged and arranged on 0-degree and 120-degree positions of the first rotating shell 12 and the second rotating shell 11 to ensure that the power output and switching control unit controls the servo motor to stop rotating after receiving signals, the servo motor driving interface is used for receiving and transmitting command data between the servo motor 1 and the MCU, the operation input interface is used for receiving and transmitting command data for switching single-phase-three-phase, the generator power supply detection and switching device is used for receiving and transmitting the instruction data of the MCU and then performing single-phase-three-phase switching output.
Claims (6)
1. The switchable output single-phase-three-phase alternating-current permanent magnet generator system comprises a power input unit, a variable-phase three-phase alternating-current permanent magnet generator unit, a servo execution unit and a power output and switching control unit; the power input unit is mechanically connected with the third end of the variable-phase three-phase alternating-current permanent magnet generator unit and provides power; the first end of the servo execution unit is mechanically connected with the first end of the variable-phase three-phase alternating-current permanent magnet generator unit, and the second end of the servo execution unit is electrically connected with the first end of the power output and switching control unit; the second end of the variable-phase three-phase alternating-current permanent magnet generator unit is electrically connected with the second end of the power output and switching control unit; and the third end of the power output and switching control unit outputs single-phase power or three-phase power.
2. The switchable single-phase to three-phase ac permanent magnet generator system of claim 1, wherein the variable-phase three-phase ac permanent magnet generator unit is composed of three independent single-phase permanent magnet generators sequentially installed in series through a same rotating shaft (10), the permanent magnet rotors (9) of the three independent single-phase permanent magnet generators have the same magnetic field strength and the same phase, and the stators (8) of the three independent single-phase permanent magnet generators are respectively installed and fixed in three independent housings.
3. A switchable output single-phase to three-phase alternating current permanent magnet generator system according to claim 2, wherein the independent housing comprises a fixed housing (13) and a first rotary housing (12) and a second rotary housing (11) arranged in sequence on one side of the fixed housing (13); the first rotating shell (12) and the second rotating shell (11) rotate in opposite directions relative to the fixed shell (13) within an angle range of 0-120 degrees, and when the angle difference between the independent shells is 0 degree, the output voltages of the three independent single-phase permanent magnet generators are the same voltage and the same phase and output single-phase electricity in parallel; when the angles between the independent shells respectively have a phase difference of 120 degrees, the output voltages of the three independent single-phase permanent magnet generators are the same, the phases of the three independent single-phase permanent magnet generators have a phase difference of 120 degrees, 0 lines output by the three independent single-phase permanent magnet generators are connected in parallel, and then three-phase four-line system voltage is output.
4. The switchable output single-phase to three-phase alternating current permanent magnet generator system of claim 3, wherein the servo execution unit comprises: the gear transmission mechanism comprises a servo motor (1), a first transmission shaft (2), a second transmission shaft (5), a first gear (3), a second gear (14), a third gear (6), a first rotating shell gear (4) and a second rotating shell gear (7); the servo motor (1) is installed on a fixed shell (13), a first rotating shell gear (4) is arranged on the outer surface of a first rotating shell (12), a second rotating shell gear (7) is arranged on the outer surface of a second rotating shell (11), a first gear (3) is meshed with a second gear (14) and the first rotating shell gear (4) simultaneously, a first transmission shaft (2) is connected with the first gear (3) and the servo motor (1), a second transmission shaft (5) is connected with a second gear (14) and a third gear (6), and the third gear (6) is meshed with the second rotating shell (11).
5. The switchable single-phase to three-phase ac permanent magnet generator system according to claim 4, wherein the servo motor is rotated by the power output and the driving command of the switching control unit, and drives the first transmission shaft (2) and the first gear (3) to rotate synchronously, and also drives the first rotating housing gear (4) and the second gear (14) to rotate in opposite directions, the second gear (14) drives the third gear (6) to rotate through the connected second transmission shaft (5), and the third gear (6) drives the second rotating housing gear (7) to rotate synchronously in opposite directions of the first rotating housing gear (4) and rotate at equal angles.
6. The switchable output single-phase to three-phase ac permanent magnet generator system of claim 3, wherein the power output and switching control unit comprises: the power supply provides electric energy for the MCU, the servo motor driving interface, the limit sensor, the operation input interface and the generator power supply detection and switching device and is controlled and managed by the MCU, the MCU is respectively connected with and controls the servo motor driving interface, the limit sensor, the operation input interface and the generator power supply detection and switching device, the limit sensor is respectively arranged and arranged on 0-degree and 120-degree positions of a first rotating shell (12) and a second rotating shell (11) to ensure that a power output and switching control unit controls the servo motor to stop rotating after receiving signals, the servo motor driving interface is used for receiving and transmitting command data between the servo motor and the MCU, and the operation input interface is used for receiving and transmitting command data for switching single-phase-three-phase, the generator power supply detection and switching device is used for receiving and transmitting the instruction data of the MCU and then performing single-phase-three-phase switching output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960839.5A CN112003438B (en) | 2020-09-14 | 2020-09-14 | Switchable output single-phase-three-phase alternating current permanent magnet generator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010960839.5A CN112003438B (en) | 2020-09-14 | 2020-09-14 | Switchable output single-phase-three-phase alternating current permanent magnet generator system |
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| CN112003438A true CN112003438A (en) | 2020-11-27 |
| CN112003438B CN112003438B (en) | 2022-03-01 |
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| CN202010960839.5A Active CN112003438B (en) | 2020-09-14 | 2020-09-14 | Switchable output single-phase-three-phase alternating current permanent magnet generator system |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB398325A (en) * | 1932-07-27 | 1933-09-14 | English Electric Co Ltd | Improvements relating to brush-shifting gear for dynamo-electric machines |
| WO2007102190A1 (en) * | 2006-03-03 | 2007-09-13 | Yoshiji Kondo | Rotation system |
| CN201156695Y (en) * | 2007-11-22 | 2008-11-26 | 深圳航天科技创新研究院 | Disc type permanent magnet motor of single phase, three phase and large power multi-phase |
| US20100065354A1 (en) * | 2008-09-18 | 2010-03-18 | Aisin Seiki Kabushiki Kaisha | Driving device for vehicle |
| CN103944315A (en) * | 2013-01-17 | 2014-07-23 | 东芝三菱电机产业系统株式会社 | Rotary motor system |
| CN105515325A (en) * | 2016-02-26 | 2016-04-20 | 电王精密电器(北京)有限公司 | 50kW-100kW permanent-magnet constant-voltage generator with automatic speed regulation function |
| CN107947657A (en) * | 2017-11-02 | 2018-04-20 | 重庆乾威科技有限公司 | Three-phase generation device |
| CN207588640U (en) * | 2017-03-10 | 2018-07-06 | 丁枫 | The humorous whole pressure swing type magnetic energy source generating set of three-phase |
-
2020
- 2020-09-14 CN CN202010960839.5A patent/CN112003438B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB398325A (en) * | 1932-07-27 | 1933-09-14 | English Electric Co Ltd | Improvements relating to brush-shifting gear for dynamo-electric machines |
| WO2007102190A1 (en) * | 2006-03-03 | 2007-09-13 | Yoshiji Kondo | Rotation system |
| CN201156695Y (en) * | 2007-11-22 | 2008-11-26 | 深圳航天科技创新研究院 | Disc type permanent magnet motor of single phase, three phase and large power multi-phase |
| US20100065354A1 (en) * | 2008-09-18 | 2010-03-18 | Aisin Seiki Kabushiki Kaisha | Driving device for vehicle |
| CN103944315A (en) * | 2013-01-17 | 2014-07-23 | 东芝三菱电机产业系统株式会社 | Rotary motor system |
| CN105515325A (en) * | 2016-02-26 | 2016-04-20 | 电王精密电器(北京)有限公司 | 50kW-100kW permanent-magnet constant-voltage generator with automatic speed regulation function |
| CN207588640U (en) * | 2017-03-10 | 2018-07-06 | 丁枫 | The humorous whole pressure swing type magnetic energy source generating set of three-phase |
| CN107947657A (en) * | 2017-11-02 | 2018-04-20 | 重庆乾威科技有限公司 | Three-phase generation device |
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| CN112003438B (en) | 2022-03-01 |
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