A Study of Oscillations of a Converter-Fed Motor with Impulse Control of Phase Currents

A converter-fed motor with sinusoidal current supply is considered in the article. The motor is widely used in electric drives of machine lines, robots, in aerospace instrument engineering, etc. The authors present a somewhat idealized mathematical description of the oscillating processes of the movable part of the motor that are caused by the pulsating component of the phase currents. A dependence of the frequency and amplitude of the electro-magnetic torque pulsating component on the correlation of the phase current pulsation frequencies is studied with regard to impulse and relay control of the phase currents. Using simulation modelling and theory of design of experiments in MATLABSIMULINK environment, design equations are obtained for standard parameters of the electric drive. The equations are presented in a convenient polynomial form and can be used for estimating pulsation amplitude of the torque, speed and position of the motor rotor when the drive control parameters are known. They can also be used for choosing electric drive parameters at allowable amplitude values of the pulsating components.

References

[1] Ovchinnikov I.E. Ventil’nye elektricheskie dvigateli i privod na ikh osnove [Valve electric motors and drive on their basis]. Sankt-Peterburg, Korona. Vek publ., 2006. 336 p.

[2] Balkovoi A.P. Pretsizionnyi elektroprivod s ventil’nymi dvigateliami [Precision electric drive with brushless motor]. Moscow, MEI publ., 2010. 327 p.

[3] Arakelian A.K., Afanas’ev A.A. Ventil’nye elektricheskie mashiny v sistemakh reguliruemykh elektroprivodov [Valve electrical machinery systems controlled drives]. Moscow, Vysshaia shkola publ., 2006, vol. 1. 546 p., vol. 2. 518 p.

[4] Firoozian R. Servo Motors and Industrial Control Theory. Springer Science Business Media, LLC, 2009. 229 p.

[5] Diskretnyi elektroprivod s shagovymi dvigateliami [Digital drive with stepper motors]. Ed. Chilikin M.G. Moscow, Energiia publ., 1971. 624 p.

[6] Ivobotenko B.A., Kozachenko V.F. Shagovyi elektroprivod v robototekhnike [Stepper actuator in robotics]. Moscow, MEI publ., 1984. 101 p.

[7] Acarnley P.P. Stepping motors: a guide to theory and practice. London, Institution of engineering and technology publ., 2007. 159 p.

[8] Rozanov Iu.K., Riabchitskii M.V., Kvasniuk A.A. Silovaia elektronika [Power Electronics]. Moscow, MEI publ., 2007. 632 p.

[9] Langen A.M., Solov’ev V.A. Analiz effektivnosti preobrazovaniia elektroenergii pri impul’snom i nepreryvnom upravlenii ventil’nym dvigatelem [Analysis of the electric power conversion efficiency under pulsed and continuous control brushless motor]. Vestnik MGTU im. N.E. Baumana. Seriia Estestvennye nauki [Herald of the Bauman Moscow State Technical University. Series Natural Sciences], 2011, special iss., pp. 44–55.

[10] Stephen J. Chapman Electric Machinery Fundamentals. McGraw-Hill Companies, 2003. 746 p.

[11] Krasovskii A.B. Primenenie imitatsionnogo modelirovaniia dlia issledovaniia ventil’noinduktornogo elektroprivoda [Use of simulation for the study of valve-inductor electric]. Elektrichestvo [Electricity]. 2003, no. 3, pp. 35–45.

[12] Ivobotenko B.A., Il’inskii N.F., Kopylov I.P. Planirovanie eksperimenta v elektromekhanike [Experimental Design in Electromechanics]. Moscow, Energiia publ., 1978. 184 p.

[13] Il’inskii N.F. Modelirovanie v tekhnike [Simulation technique]. Moscow, MEI publ., 2004. 83 p.