CN102545761A - Automatic calibrating device for initial zero-position angle of permanent magnet synchronous motor and using method of automatic calibrating device - Google Patents

Automatic calibrating device for initial zero-position angle of permanent magnet synchronous motor and using method of automatic calibrating device Download PDF

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Publication number
CN102545761A
CN102545761A CN2010106153553A CN201010615355A CN102545761A CN 102545761 A CN102545761 A CN 102545761A CN 2010106153553 A CN2010106153553 A CN 2010106153553A CN 201010615355 A CN201010615355 A CN 201010615355A CN 102545761 A CN102545761 A CN 102545761A
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China
Prior art keywords
synchronous motor
permagnetic synchronous
zero
voltage
resolver
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CN2010106153553A
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Chinese (zh)
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CN102545761B (en
Inventor
李鑫
张玉柱
徐性怡
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上海大郡动力控制技术有限公司
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Abstract

The invention relates to the field of angle measuring equipment, in particular to an automatic calibrating device for an initial zero-position angle of a permanent magnet synchronous motor and a using method of the automatic calibrating device. The automatic calibrating device for the initial zero-position angle of the permanent magnet synchronous motor comprises an isolation voltage sensor (11) and a rotating transformer (12) and is characterized by also comprising a voltage sample decoder (13), a rotating transformer decoding chip (14) and a signal processor (15), wherein the isolation voltage sensor (11) is connected with the voltage sample decoder (13), and the rotating transformer (12) is connected with the rotating transformer decoding chip (14). The using method of the automatic calibrating device for the initial zero-position angle of the permanent magnet synchronous motor is characterized in that the processing process of the signal processor (15) comprises the following steps of: initializing; sampling a position and a line voltage; judging the current angle; acquiring the line voltage; judging; and calibrating. The automatic calibrating device and the using method thereof have the advantages of high precision, short spent time and high efficiency.

Description

Permagnetic synchronous motor zero-bit initial angle automatic calibration device and method for using thereof

Technical field

The present invention relates to the measuring equipment field of angle, be specially a kind of permagnetic synchronous motor zero-bit initial angle automatic calibration device.

Background technology

Based on the continuous lifting to energy-conservation requirement, permagnetic synchronous motor begins to be widely used efficiently.As shown in Figure 1; The permagnetic synchronous motor drive system is made up of battery 1, electric machine controller 2, prime mover 3, shaft coupling 4 and permagnetic synchronous motor 5; The direct current input electric machine controller 2 of battery 1 output; Input permagnetic synchronous motor 5 after electric machine controller 2 converts three-phase alternating current to, prime mover 3 is connected through the rotor of shaft coupling and permagnetic synchronous motor 5.Rotor position detection is that the space vector of voltage pulse-width modulation that is used for permagnetic synchronous motor (is Space-Vector Pulse Width Modulation; Abbreviation SVPWM) important step; The rotor position detection of permagnetic synchronous motor realizes with resolver usually; And there are deviation usually in the zero-bit angle of resolver and permagnetic synchronous motor zero-bit angle; The manufacturing of permagnetic synchronous motor and resolver and location tolerance make this deviate unfixing again, if can not accurately and fast demarcate deviate, can have a strong impact on the Control of PMSM performance.At present; Demarcation to permagnetic synchronous motor zero-bit initial angle; Usually take the way of artificial check and correction, the subjectivity of artificial proofreading method is more intense, and different testers are bigger to the judgement diversity ratio of deviate; And artificial proofreading method need expend tester's more time check and correction, is difficult for through engineering approaches.Therefore, there is defective in the demarcation of existing permagnetic synchronous motor zero-bit initial angle, has hindered the application of permagnetic synchronous motor.

Summary of the invention

In order to overcome the defective of prior art, the calibration facility of the zero-bit initial angle of a kind of precision height, weak point consuming time is provided, the invention discloses a kind of permagnetic synchronous motor zero-bit initial angle automatic calibration device and method for using thereof.

The present invention reaches goal of the invention through following technical scheme:

A kind of permagnetic synchronous motor zero-bit initial angle automatic calibration device; Comprise isolation voltage transducer and resolver; The isolation voltage transformer has two; It is characterized in that: also comprise voltage sample decoder, resolver decoding chip and signal processor; The isolation voltage transformer is connected with the voltage sample decoder through holding wire respectively, and resolver is connected with the resolver decoding chip through holding wire, and signal processor connects voltage sample decoder and resolver decoding chip respectively through holding wire.

Described permagnetic synchronous motor zero-bit initial angle automatic calibration device is characterized in that: signal processor adopts any one among single-chip microcomputer, single board computer, microcomputer and the PLC.

The method for using of described permagnetic synchronous motor zero-bit initial angle automatic calibration device is characterized in that:

Two isolating transformers being connected on two in the three-phase alternating current of electric machine controller output respectively goes up mutually; Isolating transformer is used to gather the line information of voltage; The stator of resolver is located on the stator of permagnetic synchronous motor; The rotor of resolver is located on the rotor of permagnetic synchronous motor, resolver is used to gather the positional information of permanent-magnetic synchronous motor rotor.Electric machine controller is not worked; Permagnetic synchronous motor is dragged by prime mover and is rotated and reaches constant rotational speed; The line information of voltage of isolating transformer collection converts voltage signal into after the voltage sample decoder processes; And with this voltage signal input signal processor, the positional information of the permanent-magnetic synchronous motor rotor of resolver collection converts the permanent-magnet synchronous motor rotor position angle signal into after the resolver decoder chip is handled, and with this position signalling input signal processor.

The handling process of signal processor is made up of six steps of carrying out successively as follows: initialization, sampling location and line voltage, judge current angle, collection line voltage, judgement and demarcation.

During initialization, at first initialization zero-bit initial angle is zero.

When sampling location and line voltage, signal processor is with the position signalling and the line voltage signal of the periodic sampling permanent-magnetic synchronous motor rotor of 20us.

When judging current angle, the rotor position angle that the current angle of rotor equals resolver output deducts initial zero-bit angle.

When gathering line voltage, gather the line voltage between two phase lines of permagnetic synchronous motor through isolating transformer.

During judgement, when the physical location of permanent-magnetic synchronous motor rotor is positioned at the zero degree position, judge whether the line voltage of the permagnetic synchronous motor of this moment reaches the line voltage max; If reach maximum; Then change demarcating steps over to, timing signal, it is the zero-bit initial angle that current location is demarcated; If do not reach maximum, then reduce the value of zero-bit initial angle, and repeat from the sampling location and line voltage to judgement four steps only, accomplish until demarcating.

The method for using of described permagnetic synchronous motor zero-bit initial angle automatic calibration device is characterized in that: it is 1000 rev/mins that permagnetic synchronous motor drags the constant rotational speed that is rotated and reaches by prime mover.

The method for using of described permagnetic synchronous motor zero-bit initial angle automatic calibration device; It is characterized in that: when gathering line voltage in the handling process of signal processor; Gather the opposite potential between two phase lines of permagnetic synchronous motor through isolating transformer; Make the maximum of the opposite potential between these two phase lines overlap with the change zero-bit of revolving of permagnetic synchronous motor, revolving of the permagnetic synchronous motor of this moment becomes the side-play amount of output valve into zero-bit.

The present invention can realize the rapid batch detection to permagnetic synchronous motor zero-bit initial angle through simple sampling processing circuit, the invention has the beneficial effects as follows: precision is high, weak point consuming time, and efficient is high.

Description of drawings

Fig. 1 is the structural representation of prior art permagnetic synchronous motor drive system;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the connection sketch map of the present invention when using;

Fig. 4 is the present invention's flow chart that the zero-bit initial angle is demarcated when using.

Embodiment

Below further specify the present invention through specific embodiment.

Embodiment 1

A kind of permagnetic synchronous motor zero-bit initial angle automatic calibration device; Comprise isolation voltage transducer 11, resolver 12, voltage sample decoder 13, resolver decoding chip 14 and signal processor 15; As shown in Figure 2; Concrete structure is: isolation voltage transformer 11 has two; Isolation voltage transformer 11 is connected with voltage sample decoder 13 through holding wire respectively, and resolver 12 is connected with resolver decoding chip 14 through holding wire, and signal processor 15 connects voltage sample decoder 13 and resolver decoding chip 14 respectively through holding wire.Signal processor 15 can adopt any one among single-chip microcomputer, single board computer, microcomputer and the PLC, and present embodiment adopts single-chip microcomputer.

When present embodiment uses; As shown in Figure 3; The B, the C two that two isolating transformers 11 are connected on respectively in the three-phase alternating current of electric machine controller 2 output go up mutually, and isolating transformer 11 is used to gather the line information of voltage, the stator of resolver 12 is located on the stator of permagnetic synchronous motor 5; The rotor of resolver 12 is located on the rotor of permagnetic synchronous motor 5, resolver 12 is used to gather the positional information of permagnetic synchronous motor 5 rotors.Carry out zero-bit initial angle timing signal; Two isolating transformers 11 being connected on two in the three-phase alternating current of electric machine controller 2 output respectively goes up mutually; Isolating transformer 11 is used to gather the line information of voltage; The stator of resolver 12 is located on the stator of permagnetic synchronous motor 5, the rotor of resolver 12 is located on the rotor of permagnetic synchronous motor 5, resolver 12 is used to gather the positional information of permagnetic synchronous motor 5 rotors.

Electric machine controller 2 is not worked; Permagnetic synchronous motor 5 is dragged by prime mover 7 and is rotated and reaches 1000 rev/mins of constant rotational speed; The line information of voltage that isolating transformer 11 is gathered converts voltage signal into after voltage sample decoder 13 is handled; And with this voltage signal input signal processor 15; The positional information of permagnetic synchronous motor 5 rotors that resolver 12 is gathered converts permagnetic synchronous motor 5 rotor position angle signals into after resolver decoder chip 14 is handled, and with this position signalling input signal processor 15.

The handling process of signal processor 15 is made up of six steps of carrying out successively as follows: initialization, sampling location and line voltage, judge current angle, collection line voltage, judgement and demarcation.

During initialization, at first initialization zero-bit initial angle is zero.

When sampling location and line voltage, signal processor 15 is with the position signalling and the line voltage signal of periodic sampling permagnetic synchronous motor 5 rotors of 20us.

When judging current angle, the rotor position angle that the current angle of rotor equals resolver 12 outputs deducts initial zero-bit angle.

When gathering line voltage, through the line voltage between 5 two phase lines of isolating transformer 11 collection permagnetic synchronous motors.

During judgement, when the physical location of permagnetic synchronous motor 5 rotors is positioned at the zero degree position, judge whether the line voltage of the permagnetic synchronous motor 5 of this moment reaches the line voltage max; If reach maximum; Then change demarcating steps over to, timing signal, it is the zero-bit initial angle that current location is demarcated; If do not reach maximum, then reduce the value of zero-bit initial angle, and repeat from the sampling location and line voltage to judgement four steps only, accomplish until demarcating.

Embodiment 2

A kind of permagnetic synchronous motor zero-bit initial angle automatic calibration device comprises isolation voltage transducer 11, resolver 12, voltage sample decoder 13, resolver decoding chip 14 and signal processor 15.When present embodiment used, the handling process of signal processor 15 was made up of six steps of carrying out successively as follows: initialization, sampling location and line voltage, judge current angle, collection line voltage, judgement and demarcation.When gathering line voltage; Through the opposite potential between 5 two phase lines of isolating transformer 11 collection permagnetic synchronous motors; Make the maximum of the opposite potential between these two phase lines overlap with the change zero-bit of revolving of permagnetic synchronous motor 5, revolving of the permagnetic synchronous motor 5 of this moment becomes the side-play amount of output valve into zero-bit.Other structures and method for using are all same with embodiment 1.

Claims (5)

1. permagnetic synchronous motor zero-bit initial angle automatic calibration device; Comprise isolation voltage transducer (11) and resolver (12); Isolation voltage transformer (11) has two; It is characterized in that: also comprise voltage sample decoder (13), resolver decoding chip (14) and signal processor (15); Isolation voltage transformer (11) is connected with voltage sample decoder (13) through holding wire respectively, and resolver (12) is connected with resolver decoding chip (14) through holding wire, and signal processor (15) connects voltage sample decoder (13) and resolver decoding chip (14) respectively through holding wire.
2. permagnetic synchronous motor zero-bit initial angle automatic calibration device as claimed in claim 1 is characterized in that: signal processor (15) adopts any one among single-chip microcomputer, single board computer, microcomputer and the PLC.
3. according to claim 1 or claim 2 the method for using of permagnetic synchronous motor zero-bit initial angle automatic calibration device is characterized in that:
Two isolating transformers (11) being connected on two in the three-phase alternating current of electric machine controller (2) output respectively goes up mutually; Isolating transformer (11) is used to gather the line information of voltage; The stator of resolver (12) is located on the stator of permagnetic synchronous motor (5); The rotor of resolver (12) is located on the rotor of permagnetic synchronous motor (5), and resolver (12) is used to gather the positional information of permagnetic synchronous motor (5) rotor;
Electric machine controller (2) is not worked; Permagnetic synchronous motor (5) is dragged by prime mover (7) and is rotated and reaches constant rotational speed; The line information of voltage that isolating transformer (11) is gathered converts voltage signal into after voltage sample decoder (13) is handled; And with this voltage signal input signal processor (15); The positional information of permagnetic synchronous motor (5) rotor that resolver (12) is gathered converts permagnetic synchronous motor (5) rotor position angle signal into after resolver decoder chip (14) is handled, and with this position signalling input signal processor (15);
The handling process of signal processor (15) is made up of six steps of carrying out successively as follows: initialization, sampling location and line voltage, judge current angle, collection line voltage, judgement and demarcation,
During initialization, at first initialization zero-bit initial angle is zero;
When sampling location and line voltage, signal processor (15) is with the position signalling and the line voltage signal of periodic sampling permagnetic synchronous motor (5) rotor of 20us;
When judging current angle, the rotor position angle that the current angle of rotor equals resolver (12) output deducts initial zero-bit angle;
When gathering line voltage, gather the line voltage between (5) two phase lines of permagnetic synchronous motor through isolating transformer (11);
During judgement, when the physical location of permagnetic synchronous motor (5) rotor is positioned at the zero degree position, judge whether the line voltage of the permagnetic synchronous motor (5) of this moment reaches the line voltage max; If reach maximum; Then change demarcating steps over to, timing signal, it is the zero-bit initial angle that current location is demarcated; If do not reach maximum, then reduce the value of zero-bit initial angle, and repeat from the sampling location and line voltage to judgement four steps only, accomplish until demarcating.
4. the method for using of permagnetic synchronous motor zero-bit initial angle automatic calibration device as claimed in claim 3 is characterized in that: it is 1000 rev/mins that permagnetic synchronous motor (5) drags the constant rotational speed that is rotated and reaches by prime mover (7).
5. the method for using of permagnetic synchronous motor zero-bit initial angle automatic calibration device as claimed in claim 3; It is characterized in that: when gathering line voltage in the handling process of signal processor (15); Gather the opposite potential between (5) two phase lines of permagnetic synchronous motor through isolating transformer (11); Make the maximum of the opposite potential between these two phase lines overlap with the change zero-bit of revolving of permagnetic synchronous motor (5), revolving of the permagnetic synchronous motor (5) of this moment becomes the side-play amount of output valve into zero-bit.
CN201010615355.3A 2010-12-30 2010-12-30 Automatic calibrating device for initial zero-position angle of permanent magnet synchronous motor and using method of automatic calibrating device CN102545761B (en)

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Cited By (10)

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CN103888040A (en) * 2012-12-21 2014-06-25 上海大郡动力控制技术有限公司 Permanent magnet synchronous motor rotary transformer zero position offset consistency correction method
CN104485859A (en) * 2014-12-30 2015-04-01 北京经纬恒润科技有限公司 Method and device for determining zero initial angle of motor
CN104660118A (en) * 2015-03-11 2015-05-27 南车株洲电力机车研究所有限公司 Zero calculation method for permanent magnet synchronous motor rotating transformer
CN107147341A (en) * 2017-06-16 2017-09-08 中国科学院长春光学精密机械与物理研究所 The vector control method and control system and stable head rotated for controlled motor
CN107834934A (en) * 2017-12-01 2018-03-23 重庆长安汽车股份有限公司 Electric automobile and its rotary transformer initial position auto-correction method and system
CN104065319B (en) * 2013-12-30 2018-12-14 上海大郡动力控制技术有限公司 The scaling method of permanent magnet synchronous motor zero-bit initial angle
CN109239635A (en) * 2018-09-30 2019-01-18 合肥巨动力系统有限公司 A kind of rotation of permanent magnet synchronous motor becomes Zero positioning system and scaling method
EP3343752A4 (en) * 2015-10-09 2019-05-08 CRRC Zhuzhou Institute Co., Ltd. Method and system for correcting initial zero offset
CN109995277A (en) * 2019-03-22 2019-07-09 联创汽车电子有限公司 Permanent-magnetic synchronous motor rotor zero-bit initial angle calibration system and its scaling method
CN110715598A (en) * 2019-10-22 2020-01-21 北京动力机械研究所 Rotary transformer offset detection system and method of rotary transformer

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Cited By (12)

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Publication number Priority date Publication date Assignee Title
CN103888040A (en) * 2012-12-21 2014-06-25 上海大郡动力控制技术有限公司 Permanent magnet synchronous motor rotary transformer zero position offset consistency correction method
CN103888040B (en) * 2012-12-21 2018-01-12 上海大郡动力控制技术有限公司 Rotating transformer of permanent magnet synchronous motor zero drift Concordance method
CN104065319B (en) * 2013-12-30 2018-12-14 上海大郡动力控制技术有限公司 The scaling method of permanent magnet synchronous motor zero-bit initial angle
CN104485859A (en) * 2014-12-30 2015-04-01 北京经纬恒润科技有限公司 Method and device for determining zero initial angle of motor
CN104660118A (en) * 2015-03-11 2015-05-27 南车株洲电力机车研究所有限公司 Zero calculation method for permanent magnet synchronous motor rotating transformer
EP3343752A4 (en) * 2015-10-09 2019-05-08 CRRC Zhuzhou Institute Co., Ltd. Method and system for correcting initial zero offset
CN107147341A (en) * 2017-06-16 2017-09-08 中国科学院长春光学精密机械与物理研究所 The vector control method and control system and stable head rotated for controlled motor
CN107834934A (en) * 2017-12-01 2018-03-23 重庆长安汽车股份有限公司 Electric automobile and its rotary transformer initial position auto-correction method and system
CN107834934B (en) * 2017-12-01 2020-05-08 重庆长安汽车股份有限公司 Electric automobile and automatic correction method and system for initial position of rotary transformer of electric automobile
CN109239635A (en) * 2018-09-30 2019-01-18 合肥巨动力系统有限公司 A kind of rotation of permanent magnet synchronous motor becomes Zero positioning system and scaling method
CN109995277A (en) * 2019-03-22 2019-07-09 联创汽车电子有限公司 Permanent-magnetic synchronous motor rotor zero-bit initial angle calibration system and its scaling method
CN110715598A (en) * 2019-10-22 2020-01-21 北京动力机械研究所 Rotary transformer offset detection system and method of rotary transformer

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