# Russian Electromechanics

Russian Electromechanics. 2014; 5: 35-39

http://dx.doi.org/

Calculation and the analysis of the magnetic field of torque motors with the limited rotation angle of the rotor

V.N. Ovsyannikov

V.N. Ovsyannikov, Senior lecturer, Samara State Technical University. Ph. 242-37-90. E-mail: ovsyannikov0512@mail.ru

Abstract

The article proposes the calculation method for a torque motor’s magnetic field with a limited rotation angle and excitement from permanent magnets. The offered mathematical model of the motor is applicable for the air-gap motors with a ring winding of a stator and the nominal torque from several Nanometers to tens Nanometers. The magnetic field is calculated with the help of the ELCUT program complex. Calculation of motor’s torque characteristics has been carried out. The dependence calculation of the torque on the rotation angle at a direct current on a stator winding has been carried out by the transformation of the MT geometrical model comprising the turn of all blocks of the model, related to a stator concerning the beginning of the coordinates, coinciding with an axis of rotation of the motor. Calculations for the offered mathematical model, subsequently confirmed with experimental data, has shown that instability of the torque within a rotating corner does not exceed 2,2 %.

Keywords: torque motor, permanent magnets, rotation angle, magnetic field, torque

Full text: [in elibrary.ru]

References

1. Stolov L.I., Afanas'ev A.Yu. Momentnye dvigateli postoyannogo toka   [DC Torque motors]. Moscow, Energoatomizdat, 1989, 224 p.

2. Kopylov I.P., Klokov B.K. Morozkin V.P., Tokarev B.F. Proektirovanie elektricheskikh mashin: uchebnik dlya vuzov  [Design of electric machines: manual for the university students]. Moscow, Vysshaya shkola Publ., 2002, 757 p.

3. O.D. Gol'dberg (edit by). Proektirovanie elektricheskikh mashin [Design of electrical machines]. Moscow, Vysshaya shkola Publ., 2001. 430 p.

4. Ovsyannikov V.N., Miftakhov M.T., Mineev S.M. Matematicheskoe modelirovanie magnitnogo polya v bespazovom momentnom dvigatele s vysokokoertsitivnymi postoyannymi magnitami [Mathematical modeling of the magnetic field in the air-gap wound torque motor with a highly coercive permanent magnets]. Matematicheskoe modelirovanie i kraevye zadachi: Trudy dvenadtsatoy mezhvuzovskoy konferentsii 29-31 maya 2002 g. [Mathematical modeling and boundary value problems: Materials of the Twelfth Inter-University Conference” May 29-31, 2002]. Samara, 2002, part. 2, pp. 104 – 107.

5. Ovsyannikov V.N., Makarichev Yu.A. Metod rascheta koeffitsienta rasseyaniya bespazovogo momentnogo dvigatelya s postoyannymi magnitami [The calculating method of the scattering coefficient of the air-gap wound torque motor with permanent magnets ]. Izvestiya vysshikh uchebnykh zavedeniy. Elektromekhanika, 2007, no. 6, pp. 38 – 40. [In  Russ.]

6. Ovsyannikov V.N. Parametry matematicheskoy modeli momentnogo dvigatelya s postoyannymi magnitami [Mathematical model’s parameters of the torque motor with permanent magnets]. Sostoyanie i perspektivy razvitiya elektrotekhnologii» (XV11 Benardosovskie chteniya): materialy Mezhdunar. nauch.-tekhn. konf. 3 t. Elektrotekhnika [State and development prospects of the electrotechnology. (XV11 Benardosovskiy reading). Materials of the International Scientific and Technical Conference 3 v. Electrical Engineering]. Ivanovo, 2013, pp. 96 – 99.

7. Ovsyannikov V.N., Makarichev Yu.A. Anisimov V.M. Osobennosti proektirovaniya Momentnykh dvigateley sistem energosberezheniya truboprovodnogo transporta [Design features of torque motors of the energy saving systems of pipeline transport]. Izvestiya vysshikh uchebnykh zavedeniy. Elektromekhanika, 2011, no. 3, pp. 54 – 56. [In Russ.]

8. Ovsyannikov V.N. Optimizatsiya momentnogo elektrodvigatelya dlya sistem stabilizatsii podvizhnykh transportnykh ob"ektov [Optimization of the electric torque motor for stabilization systems of the mobile transport objects]. Vestnik transporta Povolzh'ya, 2013, no. (42), pp. 20 – 25. [In Russ.]

9. Tamm I.E. Osnovy elektrichestva: ucheb. posobie dlya vuzov. [Fundamentals of electricity: manual for the university students]. Moscow, Nauka Publ., 1989, 504 p.

>