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Enin V. N.
Sensorless Control of a Three-Section Permanent Magnet Valve Electric Motor / Enin V. N., Stepanov A. V. - DOI 10.18698/0236-3933-2019-5-20-34 // Вестник МГТУ им. Н. Э. Баумана. Сер. Приборостроение. - 2019. - № 5. -
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A method of sensorless control of a three-section valve electric motor with 120-degree commuting windings is proposed. The commuting of the windings is carried out when the back-EMF of the section to be disconnected and connected is equal; the third section is connected to a constant voltage source. In this case, the electromagnetic torque of the motor varies slightly. The commuting times are determined using a function depending on the ratio of back-EMF of the section to be disconnected and connected. This function does not depend on the rotational frequency and can be used in a wide range of speeds. The angle of rotation of the rotor and the rotational frequency for controlling the motor are determined after converting the equations of the motor to a two-phase system. An example of starting the motor with the transition to a sensorless control system commuting windings is given. The effectiveness and efficiency of the method are confirmed by modeling a low-power three-section valve electric motor in the MATLAB&Simulink system using the SimPowersystems extension
621.313 Электрические машины
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№ 5. - 2019.
