Sensorless Control of a Three-Section Permanent Magnet Valve Electric Motor

Авторы: Enin V.N., Stepanov An.V. Опубликовано: 12.10.2019
Опубликовано в выпуске: #5(128)/2019  
DOI: 10.18698/0236-3933-2019-5-20-34

Раздел: Приборостроение, метрология и информационно-измерительные приборы и системы | Рубрика: Приборы и методы измерения  
Ключевые слова: three-section valve electric motor, sensorless control, back-EMF, flux linkage, MATLAB Simulink

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


[1] Arakelyan A.K., Afanasyev A.A. Ventilnye elektricheskie mashiny v sistemakh reguliruemogo elektroprivoda [Gated electric machines in systems of controlled electric drive]. Moscow, Vysshaya shkola Publ., 2006.

[2] Belkovskiy A.P., Tsatsenkin V.K. Pretsizionnyy elektroprivod s ventilnymi dvigatelyami [Precision electric drive with brushless DC electric motor]. Moscow, MEI Publ., 2010.

[3] Baranov M.V., Brodovskiy V.N., Zimin A.V., et al. Elektricheskie sledyashchie privody s momentnym upravleniem ispolnitelnymi dvigatelyami [Electric tracking drives with instantaneous control by actuating motors]. Moscow, Bauman MSTU Publ., 2006.

[4] Solovyev V.A. Nepreryvnoe tokovoe upravlenie ventilnymi dvigatelyami [Continuous current control by brushless DC electric motors]. Moscow, MGTU im. A.N. Kosygina Publ., 2004.

[5] Niasar A.H., Vahedi A., Moghbelli H. A novel position sensorless control of a four-switch, brushless DC motor drive without phase shifter. IEEE Trans. Power Electron., 2008, vol. 23, iss. 6, pp. 3079--3087. DOI: 10.1109/TPEL.2008.2002084

[6] Guo R.Ch., Mu Z., Li J.D. Research on position sensorless control system of high-speed brushless DC motor. 9th Int. Conf. Intelligent Human-Machine Systems and Cybernetics, 2017, pp. 62--65.

[7] Li H., Zheng Sh., Ren H. Self-correction of commutation point for high-speed sensorless BLDC motor with low inductance and nonideal back EMF. IEEE Trans. Power Electron., 2017, vol. 32, iss. 1, pp. 642--651. DOI: 10.1109/TPEL.2016.2524632

[8] Song X., Han B., Zheng Sh., et al. High-precision sensorless drive for high-speed BLDC motors based on the virtual third harmonic back-EMF. IEEE Trans. Power Electron., 2018, vol. 33, iss. 2, pp. 1528--1540. DOI: 10.1109/TPEL.2017.2688478

[9] Su G.-J., McKeever J.W. Low-cost sensorless control of brushless DC motors with improved speed range. IEEE Trans. Power Electron., 2004, vol. 19, iss. 2, pp. 296--302. DOI: 10.1109/TPEL.2003.823174

[10] Chladny R.R., Koch Ch.R. Flatness-based tracking of an electromechanical variable valve timing actuator with disturbance observer feedforward compensation. IEEE Trans. Control Syst. Technol., 2008, vol. 16, iss. 4, pp. 652--663. DOI: 10.1109/TCST.2007.912121

[11] Chen Sh., Zxou X., Bai G., et al. Adaptive commutation error compensation strategy based on a flux linkage function for sensorless brushless DC motor drives in a wide speed range. IEEE Trans. Power Electron., 2018, vol. 33, iss. 5, pp. 3752--3754. DOI: 10.1109/TPEL.2017.2765355

[12] Liu G., Chen S., Zheng S., et al. Sensorless low-current start-up strategy of 100-kw BLDC motor with small inductance. IEEE Trans. Ind. Informat., 2017, vol. 13, iss. 3, pp. 1131--1140. DOI: 10.1109/TII.2016.2607158

[13] Enin V.N., Stepanov A.V. The commutation of BLDC motors in sensorless control Via EMF of rotation. Herald of the Bauman Moscow State Technical University, Series Instrument Engineering, 2018, no. 6, pp. 87--101 (in Russ.). DOI: 10.18698/0236-3933-2018-6-87-101

[14] Nos O.V. Vector-matrix models of a salient-pole synchronous machine with permanent magnets in terms of different state vector components. Izvestiya vuzov. Elektromekhanika [Russian Electromechanics], 2017, vol. 60, no. 6, pp. 5--10 (in Russ.).