CN102045012A - Controller for permanent magnet synchronous brushless motor - Google Patents

Controller for permanent magnet synchronous brushless motor Download PDF

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Publication number
CN102045012A
CN102045012A CN2010102837239A CN201010283723A CN102045012A CN 102045012 A CN102045012 A CN 102045012A CN 2010102837239 A CN2010102837239 A CN 2010102837239A CN 201010283723 A CN201010283723 A CN 201010283723A CN 102045012 A CN102045012 A CN 102045012A
Authority
CN
China
Prior art keywords
chip microcomputer
magnet synchronous
brushless motor
permanent
synchronous brushless
Prior art date
Application number
CN2010102837239A
Other languages
Chinese (zh)
Inventor
倪峰
Original Assignee
苏州凌创电子系统有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苏州凌创电子系统有限公司 filed Critical 苏州凌创电子系统有限公司
Priority to CN2010102837239A priority Critical patent/CN102045012A/en
Publication of CN102045012A publication Critical patent/CN102045012A/en

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Abstract

The invention discloses a controller for a permanent magnet synchronous brushless motor, which comprises a singlechip and a power module connected with the singlechip, wherein a current detection and calculation module is arranged in the singlechip; and a feedback device is arranged between the singlechip and the power module. The invention overcomes the drawbacks of the prior art and provides the controller which is cheap and does not require an electric brush for the permanent magnet synchronous brushless motor.

Description

A kind of permanent-magnet synchronous brushless motor controller

Technical field

The present invention relates to a kind of permanent-magnet synchronous brushless motor controller.

Background technology

Motor as a kind of production, conversion, transmission at electric energy, distribute, use and control in the electromechanical assembly that must use, motor plays an important role in industrial and agricultural production, communications and transportation, national defense and military and daily life.Along with the raising of development and national economy and living standards of the people, motor product has played increasing effect in industrial automation and people's life, according to electric current the branch of AC and DC is arranged, and motor can be divided into direct current machine and alternating current machine.

Alternating current machine is because capacity is big, rotating speed is higher, and voltage is big, advantage of simple structure.Particularly permagnetic synchronous motor has more efficient height, power height, mechanical property is good, simple in structure, possess very strong advantages such as reliability and stability, because above-mentioned good characteristic, along with the developed idol of the permanent magnetic material eighties in last century, permagnetic synchronous motor has just obtained using widely.But the permagnetic synchronous motor in the alternating current machine under the prior art has expensive, easy to wear, the shortcoming such as easy care not of price.

Summary of the invention

In order to overcome the deficiency that prior art exists, the object of the present invention is to provide a kind of low price, need not the permanent-magnet synchronous brushless motor controller of brush.

For reaching above purpose, the invention provides a kind of permanent-magnet synchronous brushless motor controller, comprise single-chip microcomputer, with the power model that described single-chip microcomputer is connected, be provided with current detecting and computing module in the described single-chip microcomputer, also be connected with feedback device between described single-chip microcomputer and power model.

Further improvement of the present invention is, but described single-chip microcomputer also is connected with universal asynchronous reception and the transmission debugging module that is used for parallel data is converted to serial data.

Further improvement of the present invention is that described single-chip microcomputer also is provided with the USB interface that is used for external communication.

Further improvement of the present invention is that described single-chip microcomputer also is provided with the CAN communication module that is used for external communication.

Further improvement of the present invention is, is connected with DC power supply, is connected with motor after by the space time modulation algorithm DC power supply being converted to AC power.

Further improvement of the present invention is, also is connected with the 3 level space vector pulse width modulation inverter that is used for DC power supply is modulated to AC power.

Further improvement of the present invention is that described single-chip microcomputer also is connected with the charactron that is used to show measurement result and operation result.

The invention has the beneficial effects as follows: 1, on the rotor of motor and stator, do not have under the situation of installation rate transducer, estimate motor rotor position and rotating speed by the Mathematical Modeling that detects electric moter voltage, electric current and motor, and with its feedback signal as closed-loop control, many shortcomings of having avoided transducer to bring have fundamentally been avoided owing to install inevitable shortcomings such as electric machine main shaft shake that physical sensors causes, mechanical inertia increase additional; 2, owing to cancelled transducer, make motor more energy-conservation, also increased the life-span of product.

Description of drawings

Accompanying drawing 1 is a kind of permanent-magnet synchronous brushless motor controller of the present invention structural representation.

Embodiment

Below preferred embodiment of the present invention is described in detail, thereby protection scope of the present invention is made more explicit defining so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that.

Referring to accompanying drawing 1, a kind of permanent-magnet synchronous brushless motor controller comprises single-chip microcomputer, the power model that is connected with single-chip microcomputer, is provided with current detecting and computing module in the single-chip microcomputer, also is connected with feedback device between single-chip microcomputer and power model.Feedback device in the present embodiment is the Control and Feedback line.But single-chip microcomputer also is connected with universal asynchronous reception and the transmission debugging module that is used for parallel data is converted to serial data.Single-chip microcomputer also is provided with and is used for the USB interface of external communication and is used for CAN communication module with external communication.

Be connected with DC power supply in the present embodiment, be connected with motor after by the space time modulation algorithm DC power supply being converted to AC power.The device that DC power supply is modulated to AC power is 3 level space vector pulse width modulation inverter (PWM).Single-chip microcomputer also is connected with the charactron that is used to show measurement result and operation result.

UART (universal asynchronous reception/dispensing device) debugging module, it is the chip that is used to control computer and serial device.Have any to be noted that it provides RS-232C data terminal equipment interface, computer just can use the serial device of RS-232C interface to communicate by letter with modulator-demodulator or other like this.As the part of interface, UART also provides following function: will be converted to the serial data stream of output by the parallel data that computer-internal sends.The outside next serial data of computer is converted to byte, uses the device of parallel data to use for computer-internal.In the serial data stream of output, add parity check bit, and the data flow that receives from the outside is carried out parity check.In output stream, add the start and stop mark, and from receiving data stream, delete the start and stop mark.The interrupt signal that processing is sent by keyboard or mouse (keyboard and mouse also are serial devices).Can process computer and the management by synchronization problem of external series equipment.

Operation principle of the present invention below is described in detail in detail.

Single-chip microcomputer detects respectively by the U phase current behind the power model, V phase current, W phase current, detect by single current value behind the motor, alternating current has different in the direction of different time with size, direction and size by U phase current, V phase current, W phase current and single current value are calculated motor speed and corner, estimate the motor movement situation, thereby reach the purpose that does not have brush also can accurately control motor.Results estimated shows by charactron.

The detection mode of electric current can have multiple, and the mode in the present embodiment because the resistance of power model is known, is calculated current value by voltage and ohmer for measuring the voltage of each position.

By above embodiment as can be seen, the present invention is a kind of low price, need not the permanent-magnet synchronous brushless motor controller of brush.

Above execution mode only is explanation technical conceive of the present invention and characteristics; its purpose is to allow the people that is familiar with this technology understand content of the present invention and is implemented; can not limit protection scope of the present invention with this, all equivalences that spirit is done according to the present invention change or modification all is encompassed in protection scope of the present invention.

Claims (7)

1. permanent-magnet synchronous brushless motor controller, it is characterized in that: comprise single-chip microcomputer, the power model that is connected with described single-chip microcomputer, be provided with current detecting and computing module in the described single-chip microcomputer, also be connected with feedback device between described single-chip microcomputer and power model.
2. permanent-magnet synchronous brushless motor controller according to claim 1 is characterized in that: but described single-chip microcomputer also is connected with universal asynchronous reception and the transmission debugging module that is used for parallel data is converted to serial data.
3. permanent-magnet synchronous brushless motor controller according to claim 1 is characterized in that: described single-chip microcomputer also is provided with the USB interface that is used for external communication.
4. permanent-magnet synchronous brushless motor controller according to claim 1 is characterized in that: described single-chip microcomputer also is provided with the CAN communication module that is used for external communication.
5. permanent-magnet synchronous brushless motor controller according to claim 4 is characterized in that: be connected with DC power supply, be connected with motor after by the space time modulation algorithm DC power supply being converted to AC power.
6. permanent-magnet synchronous brushless motor controller according to claim 5 is characterized in that: also be connected with the 3 level space vector pulse width modulation inverter that is used for DC power supply is modulated to AC power.
7. permanent-magnet synchronous brushless motor controller according to claim 5 is characterized in that: described single-chip microcomputer also is connected with the charactron that is used to show measurement result and operation result.
CN2010102837239A 2010-09-15 2010-09-15 Controller for permanent magnet synchronous brushless motor CN102045012A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010102837239A CN102045012A (en) 2010-09-15 2010-09-15 Controller for permanent magnet synchronous brushless motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010102837239A CN102045012A (en) 2010-09-15 2010-09-15 Controller for permanent magnet synchronous brushless motor

Publications (1)

Publication Number Publication Date
CN102045012A true CN102045012A (en) 2011-05-04

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CN2010102837239A CN102045012A (en) 2010-09-15 2010-09-15 Controller for permanent magnet synchronous brushless motor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106787987A (en) * 2017-04-05 2017-05-31 合肥德仁智能科技有限公司 A kind of synchronous magnetoelectric machine automatic control system

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1433950A (en) * 2002-01-24 2003-08-06 北京航天万源稀土电机应用技术有限公司 Rareearth permanent-magnet self-synchronous gearless elevator driving control system
CN2785252Y (en) * 2005-04-27 2006-05-31 中国人民解放军海军工程大学 Vehicle-used AC induction motor traction inverter
CN1805248A (en) * 2006-01-23 2006-07-19 湖南大学 Composite excitation permanent magnet synchronous variable-speed motor
CN101174811A (en) * 2007-10-19 2008-05-07 奇瑞汽车有限公司 Electric motor control method and device adopting space vector pulse width modulation
CN101369797A (en) * 2007-08-13 2009-02-18 海信(北京)电器有限公司 Vector control circuit and control method of electric motor
CN101814878A (en) * 2009-02-19 2010-08-25 中山大洋电机股份有限公司 DC brushless motor controller integrating various input signal interface circuits and control method thereof
CN201766543U (en) * 2010-09-15 2011-03-16 苏州凌创电子系统有限公司 Permanent-magnetic synchronous brushless motor controller

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1433950A (en) * 2002-01-24 2003-08-06 北京航天万源稀土电机应用技术有限公司 Rareearth permanent-magnet self-synchronous gearless elevator driving control system
CN2785252Y (en) * 2005-04-27 2006-05-31 中国人民解放军海军工程大学 Vehicle-used AC induction motor traction inverter
CN1805248A (en) * 2006-01-23 2006-07-19 湖南大学 Composite excitation permanent magnet synchronous variable-speed motor
CN101369797A (en) * 2007-08-13 2009-02-18 海信(北京)电器有限公司 Vector control circuit and control method of electric motor
CN101174811A (en) * 2007-10-19 2008-05-07 奇瑞汽车有限公司 Electric motor control method and device adopting space vector pulse width modulation
CN101814878A (en) * 2009-02-19 2010-08-25 中山大洋电机股份有限公司 DC brushless motor controller integrating various input signal interface circuits and control method thereof
CN201766543U (en) * 2010-09-15 2011-03-16 苏州凌创电子系统有限公司 Permanent-magnetic synchronous brushless motor controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106787987A (en) * 2017-04-05 2017-05-31 合肥德仁智能科技有限公司 A kind of synchronous magnetoelectric machine automatic control system

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Address after: Suzhou City, Jiangsu province 215122 Loufeng town Suzhou Industrial Park venture industrial square No. 17 factory

Applicant after: Suzhou Linktron Electronic System Co., Ltd.

Address before: Suzhou Industrial Park Suzhou city Jiangsu province 215000 Tang Zhuang Road No. 88 Building No. 1

Applicant before: Suzhou Linktron Electronic System Co., Ltd.

C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20110504