On the issue of contactless alternators on movable objects

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Abstract

BACKGROUND: This article discusses automotive inductor alternators of domestic and foreign production with different power and design. A comparative analysis of inductor alternators according to the main electromagnetic parameters and design is carried out. Based on the results of the comparative analysis, conclusions are drawn about the competitiveness of domestic inductor alternators and their superiority over foreign analogues.

AIM: Research and comparative analysis of tractor inductor alternators in order to determine the optimal design, as well as the main characteristics and parameters.

METHODS: The calculation of the magnetic circuit and the idling characteristic is based on the method of successive approximations using iterations. A well-known method with the Blondel diagram is used to calculate the current-speed curve.

RESULTS: A review and comparative analysis of automotive inductor alternators of domestic and foreign production, with various magnetic systems and design, is carried out. The advantages and disadvantages of the magnetic circuit of inductor alternators of both domestic and foreign production are determined and given in comparative tables and current-speed curves. The optimal design of the inductor alternator with the most effective technical and economic indicators was chosen to perform the calculation.

CONCLUSIONS: The calculation of the magnetic circuit and idling characteristics of the 11.3701 three-phase single-pole, single-pack inductor generator with a classical toothed zone and a two-half-period rectifier is carried out. The calculation of the current-velocity curve was performed using the well-known method with the Blondel diagram and the method of successive approximations using iterations.

About the authors

Evgeniy A. Ryabykh

Moscow Polytechnic University

Author for correspondence.
Email: fczl98@bk.ru
ORCID iD: 0000-0001-7112-1019
SPIN-code: 4843-6000

Postgraduate of the Electrical Equipment and Industrial Electronics Department

Russian Federation, 38 Bolshaya Semenovskaya street, 107023 Moscow

Ruslan A. Maleev

Moscow Polytechnic University

Email: 19rusmal@gmail.com
ORCID iD: 0000-0003-3430-6406
SPIN-code: 7801-3294

Associate Professor, Cand. Sci. (Engineering), Professor of the Electrical Equipment and Industrial Electronics Department

Russian Federation, 38 Bolshaya Semenovskaya street, 107023 Moscow

Andrey V. Akimov

Moscow Polytechnic University

Email: a.akimov5@mail.ru
ORCID iD: 0009-0002-6010-8817
SPIN-code: 8238-8598

Associate Professor, Cand. Sci. (Engineering), Associate Professor of the Electrical Equipment and Industrial Electronics Department

Russian Federation, 38 Bolshaya Semenovskaya street, 107023 Moscow

References

  1. Ryabykh EA, Maleev RA, Akimov AV. Switched inductor generators for special purpose vehicles. Izvestiya MGTU «MAMI». 2023;17(3):287–294. EDN: GXYPIB doi: 10.17816/2074-0530-340855
  2. Akimov SV, Chizhkov YuP. Electrical equipment of cars. Moscow: Za rulem; 2001.
  3. Akimov SV, Kopylova LV. Calculation of output characteristics of automotive and tractor inductor generators. Мoscow: MAMI; 1987.
  4. Chernov AE, Akimov AV. Comparative analysis of the energy capabilities of excitation systems for tractor generators. Tractors and Agricultural Machinery. 2017;84(1):46–53. doi: 10.17816/0321-4443-66274
  5. Chernov AE, Akimov AV. Automated test bench for the study of automobile and bus generator sets. Izvestiya MGTU «MAMI». 2014. Т. 1, №2. C. 5–12. EDN: SXGXIL
  6. Fesenko MN, Kopylova LV, Korotkov VI. Theory, design and calculation of automotive electrical equipment. Moscow: Mashinostroenie; 1992.

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2. Fig. 1. A schematic section of the Niehoff alternator: 1 — an excitation winding; 2 — rectifier diods; 3 — a front cap; 4 — a housing; 5 — a pack of a stator with winding; 6 — a rear cap; 7 — a bushing; 8 — a rotor.

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3. Fig. 2. Design of an alternator with a rotating rectifier: 1 — permanent magnets of a subexciter inductor; 2 — a winding of a subexciter armature; 3 — rectifying and controlling devices; 4 — an excitation winding of an exciter inductor; 5 — a winding of an exciter armature; 6 — rotating rectifiers; 7 — an excitation winding of an inductor of the main alternator; 8 — a winding of an armature of the main alternator; 9 — a centrifugal fan.

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4. Fig. 3. Section of the Delco Remy 30 Si 400 alternator: 1 — a needle bearing; 2 — a shaft; 3 — a rear cap; 4 — poles; 5 — an excitation winding; 6 — a stator; 7 — a stator winding; 8 — a front cap; 9 — a magnetic conducting bushing; 10 — a front bearing.

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5. Fig. 4. Magnetic system of the Marshall Fred A 14/30 alternator: 1 — a bushing of an excitation winding; 2 — a pole tip; 3 — a stator winding; 4 — the excitation winding.

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6. Fig. 5. Current-speed curves of alternators: 1 — the Niehoff A-2-125; 2 — the G-309 (15.3701); 3 — the Niehoff A-81-1; 4 — the Gallo Condor; 5 — the G-306 (13.3701); 6 — the Ducati E-35.14.34.01.

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7. Fig. 6. Current-speed curves of alternators: 1 — the Motorola 8SB2001-R; 2 — the Delco Remy 30 Si 400; 3 — the Bosch T4; 4 — the Marshall Fred A-14/30.

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8. Fig. 7. The ΔЕ=f (n) curves.

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9. Fig. 8. The current-speed curve of the 11.3701 alternator.

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