[특허]Method and apparatus for controlling torque and torque ripple in a variable reluctance motor

[미국특허] Method and apparatus for controlling torque and torque ripple in a variable reluctance motor 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H02P-008/00
출원번호	US-0065399 (1987-06-23)
발명자 / 주소	Anderson Frank J. (Northford CT) Senak Jr. Peter (Bristol CT)
출원인 / 주소	The Superior Electric Company (Bristol CT 02)
인용정보	피인용 횟수 : 46 인용 특허 : 2

초록 ▼

Apparatus for controlling torque and torque ripple in a variable reluctance motor uses a generated torque waveform for each phase of the number of phases associated with the motor and corresponds to an electrical current having a predetermined constant magnitude. The generated torque waveforms are utilized to provide a table of values representative of the electrical current magnitude at each of a number of sensed rotor angular positions. The values correspond to the torque produced by the motor when excited by an electric current having that value and the location of the value in a memory device are defined by the sensed angular position of the rotor and a desired torque command signal. Depending on the torque to be produced by the motor and the rotor position, the motor is excited with the value of current selected for one or a combination of phases to cause the motor to develop a desired torque which has a substantially flat and ripple-free response characteristic.

대표청구항 ▼

Apparatus for controlling torque and torque ripple in a variable reluctance motor having at least one phase and including a stator and a rotor arranged for movement about a common axis and relative to one another, said apparatus comprising: means for sensing the angular position of the rotor relative to the stator; means for providing a torque command signal representative of a desired torque to be developed by the motor; means for generating a plurality of torque waveforms for each phase of the number of phases associated with the motor, said generated torque waveforms corresponding to the torque developed by the actual motor when excited by an electrical current having a predetermined, constant magnitude; means utilizing said torque waveforms for providing a table of values representative of the magnitude of electrical current at each sensed angular position and corresponding to the actual torque developed by the motor when the motor is excited by an electrical current having that value, and means coupled to said table providing means and to the motor for receiving the value of electrical current defined by the sensed angular position and the torque command signal to supply to the motor an electrical current having a magnitude equal to said defined value to cause the motor to develop a torque substantially equal to the desired torque at each of said sensed angular positions, said developed torque having a substantially flat and ripple free response characteristic.

이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

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이 특허를 인용한 특허 (46) 인용/피인용 타임라인 분석

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Colosky, Mark P., Compensation of periodic sensor errors in electric power steering systems.
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Stephenson John M. (Leeds GB2) Ray William F. (Nottingham GB2), Control of switched reluctance machines.
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Becerra Roger C., Method and apparatus for calibrating a permanent-magnet motor using back EMF measurement.
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Kolomeitsev Sergei, Method and apparatus for reducing noise in a variable reluctance motor.
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Kalpathi Ramani R. ; Liu Ning ; Blackburn Scott E. ; Kolomeitsev Sergei F., Method and apparatus of reducing acoustic noise in switched reluctance electric motor.
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[미국특허] Method and apparatus for controlling torque and torque ripple in a variable reluctance motor 원문보기

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[미국특허] Method and apparatus for controlling torque and torque ripple in a variable reluctance motor 원문보기

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연구과제 타임라인

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이 특허에 인용된 특허 (2) 인용/피인용 타임라인 분석

이 특허를 인용한 특허 (46) 인용/피인용 타임라인 분석

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