Excitation current control of a claw pole automotive alternator

Unutulmaz, M. Gokay; Ergene, Lale T.

doi:10.1109/epecs.2013.6713044

Cited by 14 publications

(1 citation statement)

References 3 publications

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“…The claw-pole alternator (CPA) is one type of wound-field synchronous machine with salient pole which can generate electricity in the stator coils with the rotor acting as an electromagnet. It has been widely used in automobiles for many years to provide the power through the diode-bridge rectifier, as shown in Figure 1, especially in the high speed engine operation, owing to the rugged structure in the rotor with a pair of claw poles secured around a cylindrical field winding [1][2][3][4]. However, because many mechanically driven loads, like ventilation fan, servo steering, breaks, and water pumps, in modern vehicles are gradually replaced by electrical drives, the power requirements in automobiles have been rising rapidly recently.…”

Section: Introductionmentioning

confidence: 99%

Phase-Variable Modeling and Comparative Study between a PMa-CPA and a CPA Alternator by Simulation Analysis

Tsai

Tseng

Bai

2022

J. Phys.: Conf. Ser.

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This paper presents the phase-variable modeling of a permanent magnet-assisted claw-pole alternator in PSIM simulation software tool with the performance compared with a claw-pole alternator model, which is a special case of the permanent magnet-assisted claw-pole alternator model with the rotor permanent-magnet flux constant setting equal to zero. The constructed model can be simulated as a real alternator directly connected to a diode-bridge rectifier or switch-mode rectifier circuit for the integrated power application system simulation analysis. The proposed model contains two features, one of which is that the stator and rotor windings are circuit-based. The other one feature is that the mechanical torque input is based on a mathematical function. In this model, the rotor position-dependent variable inductor is replaced by a separate voltage source according to the voltage source absorption theorem. The simulation shows that the proposed model has faster torque step response and higher power efficiency than the claw-pole alternator model. The proposed model can be employed to the application of the control design and simulation study of voltage regulation in automobiles. The simulation results with 15-V command and the load sudden change verify the correction of the proposed model.

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Section: Introductionmentioning

confidence: 99%