CN101951072B - Time-staggering independent-drive device and method for stator windings of permanent magnet synchronous motor - Google Patents
Time-staggering independent-drive device and method for stator windings of permanent magnet synchronous motor Download PDFInfo
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- CN101951072B CN101951072B CN201010250331.2A CN201010250331A CN101951072B CN 101951072 B CN101951072 B CN 101951072B CN 201010250331 A CN201010250331 A CN 201010250331A CN 101951072 B CN101951072 B CN 101951072B
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- inversion unit
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Abstract
The invention relates to a time-staggering independent-drive device and a time-staggering independent-drive method for stator windings of a permanent magnet synchronous motor. The device comprises a motor shaft (1), wherein the motor shaft is externally connected with a rotating transformer (2) which is coaxially connected with a permanent magnet rotor (3); the permanent magnet rotor has eight pairs of poles; air-gap installation stators (4) are arranged outside the permanent magnet rotor of each pair of poles; three phases of windings of the stator of each pair of poles are independently connected with an inverter unit (5) respectively; one of the inverter units is connected with a master controller (6-1), while the others are correspondingly connected with auxiliary controllers 6-2 to 6-8 respectively; the inverter units are connected with a public DC busbar (7); and the master controller is connected with the rotating transformer, and is connected with the auxiliary controllers by a control wire harness (8). The product is applicable for drive and control integrated permanent magnet synchronous motors.
Description
Technical field:
The present invention relates to a kind of time-staggered independent driving device for stator winding of permanent magnet synchronous motor.
Background technology:
Publication number is the Miniature inverter of CN 2696197Y and the integrated driving device with ac three-phase asynchronous motor combination thereof, it is characterized in that this Miniature inverter has the multi-layer PCB (printed circuit board (PCB)) of a large amount of Surface Mount miniature electronic components and parts by one piece and forms with the IPM (Intelligent Power Module) being integrated with all required circuit of its area equation, and this inverter is directly installed on the terminal box position of motor case, by former DC power supply, casing is utilized to dispel the heat, use IPM as the platform of Miniature inverter main circuit, control circuit is directly installed on IPM surface, make this integrated driving device directly can replace former direct current machine to use, directly can apply to beeliner accessory fan and the small-sized electric equipment of power supply is provided by wind-force.
Publication number is that the high accuracy of CN 101571723A drives and controls integrated electric motor, comprise power interface, by load situation detecting sensor, decelerator, motor, motor rotor position detecting sensor, connect to drive and become one with the debugging interface of controller and field-bus interface, namely the output shaft be connected with load situation detecting sensor directly connects load, by the both sides of motor respectively with motor rotor position detecting sensor, decelerator is coaxially connected, load situation detecting sensor and the coaxial installation of load, and with shielding conductor, load situation detecting sensor and motor rotor position detecting sensor signal are caused driving and controller.This invention makes system have good shock resistance, anti-shake performance, is more suitable for industrial control condition; Load situation detecting sensor, decelerator, motor etc. are become one; Utilize positioner, speed control and current controller effectively to suppress Backlash Nonlinearity, improve system accuracy.
Above patent is all motor, inverter, controller, sensor are combined as a whole, and shortens the stube cable between motor and driving governor, decreases the fault odds such as Miswire, tie point loose contact.But above patent does not all adopt drive mode, do not consider the problems such as motor low cruise efficiency is low, fault-tolerant operation ability.The present invention is that permanent-magnetic synchronous motor stator winding is staggered the time self-contained unit and method, independent driving method solves the inefficient problem of motor low cruise, the motor still cpable of lowering power fault-tolerant operation when partial stator winding damages, driving method of staggering the time avoid each to pole stator winding start simultaneously energising, when efficiently reducing stator winding electrifying, the impulse current of direct current power electric capacity, reduces the capacity requirement to direct current power electric capacity.
Summary of the invention:
The object of this invention is to provide a kind of time-staggered independent driving device for stator winding of permanent magnet synchronous motor and method, motor low cruise efficiency and fault-tolerant operation ability can be improved, during reduction stator winding electrifying, the impulse current of direct current power electric capacity, reduces the capacity requirement to direct current power electric capacity.
Above-mentioned object is realized by following technical scheme:
Time-staggered independent driving device for stator winding of permanent magnet synchronous motor, its composition comprises: motor shaft, described motor shaft connects resolver outward, described resolver coaxially connects p-m rotor, described p-m rotor is 8 to pole, outside often pair of extremely described p-m rotor, there is air gap and stator is installed, the three-phase windings of often pair of extremely described stator independently connects inversion unit, inversion unit described in one of them connects master controller, inversion unit described in all the other connects assistant controller respectively, described inversion unit connects public direct-flow bus wire, resolver described in described master controller connects, connect by controlling wire harness between described master controller and assistant controller.
Described time-staggered independent driving device for stator winding of permanent magnet synchronous motor, described inversion unit and controller are positioned in the housing hollow of described stator, and described public direct-flow bus wire is arranged in the surface of shell of described stator.
Adopt an above-mentioned permanent-magnetic synchronous motor stator winding independent driving method, time below rated speed, master controller instruction 1-7 inversion unit work, the inversion unit not obtaining instruction is standby; Time more than rated speed, can whole 8 the inversion unit work of instruction, Maximum Power Output.
A kind ofly above-mentioned permanent-magnetic synchronous motor stator winding is adopted to stagger the time driving method, assistant controller receives the on off control command signal that master controller sends, judge that assistant controller is in running order or armed state, if assistant controller is standby, then described assistant controller and coupled inversion unit do not work, stator winding no power; If assistant controller is in running order, then staggers the time and drive coupled inversion unit.
Beneficial effect:
1. high-power inverter is decomposed into the inversion unit of some smaller powers by the present invention under the prerequisite meeting power demand of motors, all inversion units are powered by public direct-flow bus wire, each inversion unit independent driving motor often pair of pole stator winding, according to overall power output demand, master controller instruction 1-7 inversion unit or whole 8 inversion unit drive motors, each inversion unit adopts independent driving method of staggering the time, motor low cruise efficiency and fault-tolerant operation ability can be improved, the impulse current of direct current power electric capacity during reduction stator winding electrifying, reduce the capacity requirement to direct current power electric capacity.When motor speed is lower, need not drive all 8 to pole stator winding simultaneously, only need drive wherein any pair pole stator winding, master controller can work by any one inversion unit of instruction, remaining inversion unit is standby, improves operational efficiency during motor low speed.
2. fault-tolerant operation ability of the present invention is strong: when partial stator winding damages, motor is cpable of lowering power fault-tolerant operation still.This independent driving method, technology significant power demand being decomposed into some smaller power unit, solves the difficult problem that cannot work under single power stage is nonserviceabled.
3. direct current power capacitance of the present invention is little: adopt the small independent driving method of staggering the time of each inversion unit, avoid each to pole stator winding start simultaneously energising, when effectively can reduce stator winding electrifying, the impulse current of direct current power electric capacity, reduces the capacity requirement to direct current power electric capacity.
4. resolver of the present invention is only connected with master controller, is not connected with assistant controller.Master controller primary responsibility completes to revolve and becomes decoding, control algolithm operation, PWM output, on off control instruction transmission etc., and assistant controller primary responsibility completes stagger the time control, fault message transmission etc.Control wire harness Shi You tri-road pwm signal and CAN form, and CAN is responsible for the communication of on off control command signal and fault message between master controller and assistant controller.Master controller sends three road pwm signals by controlling wire harness to all assistant controllers, and sends seven road on off control command signals by CAN respectively to assistant controller, and assistant controller sends fault message by CAN respectively towards master controller.
5. the present invention can realize control of staggering the time: assistant controller is according to the on off control command signal of the master controller received separately, judge that assistant controller is in running order or armed state, if assistant controller is standby, then described assistant controller and coupled inversion unit do not work, stator winding no power; If assistant controller is in running order, then staggers the time and drive coupled inversion unit.
Accompanying drawing illustrates:
Fig. 1 is structural representation of the present invention.
Fig. 2 is inversion unit and controller annexation figure.
Fig. 3 is that the PWM1 signal of master controller and assistant controller is staggered the time logic relation picture.
Fig. 4 staggers the time pwm signal logic relation picture in six tunnels of assistant controller 6-2.
Fig. 5 is the main MCU peripheral circuit schematic diagram of master controller.
Fig. 6 is that revolving of master controller becomes decoding circuit schematic diagram.
Fig. 7 is the predrive circuit schematic diagram of master controller and assistant controller.
Fig. 8 is the auxiliary MCU peripheral circuit schematic diagram of assistant controller.
Embodiment:
Embodiment 1:
As shown in Figure 1, time-staggered independent driving device for stator winding of permanent magnet synchronous motor, its composition comprises: motor shaft 1, described motor shaft connects resolver 2 outward, described resolver coaxially connects p-m rotor 3, described p-m rotor is 8 to pole, outside often pair of extremely described p-m rotor, there is air gap and stator 4 is installed, the three-phase windings of often pair of extremely described stator independently connects inversion unit 5, inversion unit described in one of them connects master controller 6-1, inversion unit described in all the other connects assistant controller 6-2-8 respectively, described inversion unit connects public direct-flow bus wire 7, resolver described in described master controller connects, 8 are connected by controlling wire harness between described master controller and assistant controller.
Described time-staggered independent driving device for stator winding of permanent magnet synchronous motor, described inversion unit and controller are positioned in the housing hollow of described stator, and described public direct-flow bus wire is arranged in the surface of shell of described stator.
Embodiment 2:
As shown in accompanying drawing 1,2, motor and driving governor thereof adopt integrated design, and motor is three-phase permanent magnet synchronous motor, and its p-m rotor 3 is 8 to pole, three-phase windings A1-8, B1-8, C1-8 of often pair of pole stator 4 independently draw, respectively by each inversion unit drive.All inversion units are three-phase bridge structure, the DC side of each inversion unit 5 is all connected with public direct-flow bus wire 7U+, U-and direct current power electric capacity, and its AC three-phase exports and is connected with three-phase windings A1-8, B1-8, C1-8 of often pair, motor pole stator 4 respectively.Each inversion unit 5 and controller are placed in the housing hollow of often pair of pole stator 4 respectively, and public direct-flow bus wire 7U+, U-are arranged in the surface of shell of stator 4.Resolver 2 coaxially connects p-m rotor 3, and master controller 6-1 is connected with resolver 2.Master controller 6-1 primary responsibility completes to revolve and becomes decoding, control algolithm operation, PWM output, on off control instruction transmission etc., and assistant controller 6-2-8 primary responsibility completes stagger the time control, fault message transmission etc.Control wire harness 8 Shi You tri-road pwm signal and CAN form, and CAN is responsible for the communication between master controller 6-1 and assistant controller 6-2-8.Master controller 6-1 sends three road pwm signals by controlling wire harness 8 to all assistant controller 6-2-8, and sending seven road on off control command signals by CAN respectively to assistant controller 6-2-8, assistant controller 6-2-8 sends fault message by CAN respectively towards master controller 6-1.Assistant controller 6-2-8 judges whether to carry out the coupled inversion unit of small process rear drive of staggering the time to pwm signal according on off control command signal.
Embodiment 3:
Adopt above-mentioned permanent-magnetic synchronous motor stator winding independent driving method, it is characterized in that: time below rated speed, master controller 6-1 instruction 1-7 inversion unit work, the inversion unit not obtaining instruction is still standby; Time more than rated speed, can whole 8 the inversion unit work of instruction, Maximum Power Output.
Embodiment 4:
As shown in accompanying drawing 2,3,4,5,6,7, above-mentioned permanent-magnetic synchronous motor stator winding is adopted to stagger the time driving method, it is characterized in that: assistant controller 6-2-8 receives the on off control command signal that master controller 6-1 sends, judge that assistant controller 6-2-8 is in running order or armed state, if assistant controller 6-2-8 is standby, then described assistant controller 6-2-8 and coupled inversion unit do not work, stator winding A2-8, B2-8, C2-8 no power; If assistant controller 6-2-8 is in running order, then staggers the time and drive coupled inversion unit.
By revolving, master controller 6-1 mainly becomes that decoding circuit, main MCU, predrive circuit etc. form, primary responsibility completes and revolves change decoding, control algolithm operation, PWM output, on off control instruction transmission etc.Assistant controller 6-2-8 is mainly made up of auxiliary MCU, predrive circuit etc., and not containing revolving change decoding circuit, primary responsibility completes stagger the time control, fault message transmission etc.Resolver 2 is only connected with master controller 6-1, is not connected with assistant controller 6-2-8.
Master controller 6-1 will revolve to become after information decoding becomes 12 absolute rotor position information and send into main MCU, and main MCU is responsible for running control algolithm and exporting six road pwm signals, and this six roads pwm signal can drive coupled inversion unit after isolation is amplified.Three IGBT of brachium pontis under the three-phase that PWM1, PWM3, PWM5 in six described road pwm signals are respectively used to drive three IGBT, PWM2 of brachium pontis on the three-phase of coupled inversion unit, PWM4, PWM6 are respectively used to drive coupled inversion unit.
Control wire harness 8 Shi You tri-road pwm signal and CAN form, and CAN is responsible for the communication of on off control instruction and fault message between master controller 6-1 and assistant controller 6-2-8.Master controller 6-1 sends three road pwm signals by controlling wire harness 8 to assistant controller 6-2-8, and sending seven road on off control command signals by CAN respectively to assistant controller 6-2-8, assistant controller 6-2-8 sends fault message by CAN respectively towards master controller 6-1.
Assistant controller 6-2-8 is responsible for the on off control command signal receiving the master controller 6-1 sent from CAN, and sends respective fault message to master controller 6-1 by CAN.The auxiliary MCU of assistant controller 6-2-8 is according to the on off control command signal of the master controller 6-1 received separately, judge that assistant controller 6-2-8 is in running order or armed state, if assistant controller 6-2-8 is standby, then described assistant controller 6-2-8 and coupled inversion unit do not work, stator winding no power A2-8, B2-8, C2-8, if assistant controller 6-2-8 is in running order, the then auxiliary MCU PWM1 that first utilizes capturing unit to catch master controller 6-1 to send, PWM3, the rising edge of PWM5 signal, and according to the delay time preset, to PWM1, PWM3, PWM5 signal carries out small process of staggering the time, obtain the PWM1 staggered the time, PWM3, PWM5 signal, then by the described PWM1 staggered the time, PWM3, the negate after inserting Dead Time respectively of PWM5 signal, the PWM2 staggered the time can be obtained, PWM4, PWM6 signal, finally amplify the coupled inversion unit of rear drive with the described six road pwm signals of staggering the time through isolation.Described independent driving method of staggering the time avoid each to pole stator winding start simultaneously energising, effectively can reduce the impulse current of DC capacitor during stator winding electrifying, reduce the capacity requirement to direct current power electric capacity.
Claims (3)
1.
a kind of time-staggered independent driving device for stator winding of permanent magnet synchronous motor, its composition comprises: motor shaft, described motor shaft connects resolver outward, described resolver coaxially connects p-m rotor, it is characterized in that: described p-m rotor is 8 to pole, outside often pair of extremely described p-m rotor, there is air gap and stator is installed, the three-phase windings of often pair of extremely described stator independently connects inversion unit, inversion unit described in one of them connects master controller, inversion unit described in all the other connects assistant controller respectively, described inversion unit connects public direct-flow bus wire, resolver described in described master controller connects, connect by controlling wire harness between described master controller and assistant controller,
described inversion unit and controller are positioned in the housing hollow of described stator, and described public direct-flow bus wire is arranged in the surface of shell of described stator;
control wire harness Shi You tri-road pwm signal and CAN form, and CAN is responsible for the communication of on off control command signal and fault message between master controller and assistant controller; Master controller sends three road pwm signals by controlling wire harness to all assistant controllers, and sends seven road on off control command signals by CAN respectively to assistant controller, and assistant controller sends fault message by CAN respectively towards master controller;
motor and driving governor thereof adopt integrated design, and motor is three-phase permanent magnet synchronous motor, and its p-m rotor is 8 to pole, and three-phase windings A, B, C of often pair of pole stator independently draw, respectively by each inversion unit drive; All inversion units are three-phase bridge structure, and the DC side of each inversion unit is all connected with public direct-flow bus wire U+, U-and direct current power electric capacity, and its AC three-phase exports and is connected with three-phase windings A, B, C of often pair, motor pole stator respectively; Each inversion unit and controller are placed in the housing hollow of often pair of pole stator respectively, and public direct-flow bus wire U+, U-are arranged in the surface of shell of stator.
2.
a kind of independent driving method adopting time-staggered independent driving device for stator winding of permanent magnet synchronous motor according to claim 1, it is characterized in that: time below rated speed, master controller instruction 1-7 inversion unit work, the inversion unit not obtaining instruction is standby; Time more than rated speed, can whole 8 the inversion unit work of instruction, Maximum Power Output;
inversion unit is powered by public direct-flow bus wire, each inversion unit independent driving motor often pair of pole stator winding, according to overall power output demand, master controller instruction 1-7 inversion unit or whole 8 inversion unit drive motors, each inversion unit adopts independent driving method of staggering the time, improve motor low cruise efficiency and fault-tolerant operation ability, during reduction stator winding electrifying, the impulse current of direct current power electric capacity, reduces the capacity requirement to direct current power electric capacity; When motor speed is lower, need not drive all 8 to pole stator winding simultaneously, only need drive wherein any pair pole stator winding, master controller can work by any one inversion unit of instruction, remaining inversion unit is standby, improves operational efficiency during motor low speed.
3.
a kind of driving method of staggering the time adopting time-staggered independent driving device for stator winding of permanent magnet synchronous motor according to claim 1, it is characterized in that: assistant controller receives the on off control command signal that master controller sends, judge that assistant controller is in running order or armed state, if assistant controller is standby, then described assistant controller and coupled inversion unit do not work, stator winding no power; If assistant controller is in running order, then staggers the time and drive coupled inversion unit;
master controller will revolve to become after information decoding becomes 12 absolute rotor position information sends into main MCU, and main MCU is responsible for running control algolithm and exporting six road pwm signals, and this six roads pwm signal can drive coupled inversion unit after isolation is amplified; Three IGBT of brachium pontis under the three-phase that PWM1, PWM3, PWM5 in six described road pwm signals are respectively used to drive three IGBT, PWM2 of brachium pontis on the three-phase of coupled inversion unit, PWM4, PWM6 are respectively used to drive coupled inversion unit;
control wire harness Shi You tri-road pwm signal and CAN form, and CAN is responsible for the communication of on off control instruction and fault message between master controller and assistant controller; Master controller sends three road pwm signals by controlling wire harness to assistant controller, and sends seven road on off control command signals by CAN respectively to assistant controller, and assistant controller sends fault message by CAN respectively towards master controller;
assistant controller is responsible for the on off control command signal receiving the master controller sent from CAN, and sends respective fault message to master controller by CAN, the auxiliary MCU of assistant controller is according to the on off control command signal of the master controller received separately, judge that assistant controller is in running order or armed state, if assistant controller is standby, then described assistant controller and coupled inversion unit do not work, stator winding no power, if assistant controller is in running order, the then auxiliary MCU PWM1 that first utilizes capturing unit to catch master controller to send, PWM3, the rising edge of PWM5 signal, and according to the delay time preset, to PWM1, PWM3, PWM5 signal carries out small process of staggering the time, obtain the PWM1 staggered the time, PWM3, PWM5 signal, then by the described PWM1 staggered the time, PWM3, the negate after inserting Dead Time respectively of PWM5 signal, the PWM2 staggered the time can be obtained, PWM4, PWM6 signal, finally amplify the coupled inversion unit of rear drive with the described six road pwm signals of staggering the time through isolation, described independent driving method of staggering the time avoid each to pole stator winding start simultaneously energising, effectively reduce stator winding electrifying time DC capacitor impulse current, reduce the capacity requirement to direct current power electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010250331.2A CN101951072B (en) | 2010-08-10 | 2010-08-10 | Time-staggering independent-drive device and method for stator windings of permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010250331.2A CN101951072B (en) | 2010-08-10 | 2010-08-10 | Time-staggering independent-drive device and method for stator windings of permanent magnet synchronous motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101951072A CN101951072A (en) | 2011-01-19 |
| CN101951072B true CN101951072B (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010250331.2A Expired - Fee Related CN101951072B (en) | 2010-08-10 | 2010-08-10 | Time-staggering independent-drive device and method for stator windings of permanent magnet synchronous motor |
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| CN (1) | CN101951072B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6528967B2 (en) * | 2000-10-17 | 2003-03-04 | Vscf, Inc. | Permanent magnet brushless electric motor system and method of using same |
| CN2696197Y (en) * | 2004-04-06 | 2005-04-27 | 谢步明 | Miniature inverter and its integral driving device combined with motor |
| CN101272125A (en) * | 2008-04-17 | 2008-09-24 | 中国科学院电工研究所 | Motor drive system with fault tolerance function |
| CN101571723A (en) * | 2008-04-30 | 2009-11-04 | 南京理工大学 | High-precision drive and control integration motor |
| CN201797413U (en) * | 2010-08-10 | 2011-04-13 | 哈尔滨理工大学 | Time-staggered independent driving device for stator winding of permanent magnet synchronous motor |
-
2010
- 2010-08-10 CN CN201010250331.2A patent/CN101951072B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6528967B2 (en) * | 2000-10-17 | 2003-03-04 | Vscf, Inc. | Permanent magnet brushless electric motor system and method of using same |
| CN2696197Y (en) * | 2004-04-06 | 2005-04-27 | 谢步明 | Miniature inverter and its integral driving device combined with motor |
| CN101272125A (en) * | 2008-04-17 | 2008-09-24 | 中国科学院电工研究所 | Motor drive system with fault tolerance function |
| CN101571723A (en) * | 2008-04-30 | 2009-11-04 | 南京理工大学 | High-precision drive and control integration motor |
| CN201797413U (en) * | 2010-08-10 | 2011-04-13 | 哈尔滨理工大学 | Time-staggered independent driving device for stator winding of permanent magnet synchronous motor |
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| CN101951072A (en) | 2011-01-19 |
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