Indirect rotor position sensing in real time for brushless permanent magnet motor drives

Journal Article · Wed Jul 01 04:00:00 EDT 1998 · IEEE Transactions on Power Electronics

DOI:https://doi.org/10.1109/63.704126· OSTI ID:665361

Ertugrul, N ^[1]; Acarnley, P P ^[2]

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1. Univ. of Adelaide (Australia). Dept. of Electrical and Electronic Engineering
2. Univ. of Newcastle upon Tyne (United Kingdom). Dept. of Electrical and Electronic Engineering

This paper describes a modern solution to real-time rotor position estimation of brushless permanent magnet (PM) motor drives. The position estimation scheme, based on flux linkage and line-current estimation, is implemented in real time by using the abc reference frame, and it is tested dynamically. The position estimation model of the test motor, development of hardware, and basic operation of the digital signal processor (DSP) are discussed. The overall position estimation strategy is accomplished with a fast DSP (TMS320C30). The method is a shaft position sensorless method that is applicable to a wide range of excitation types in brushless PM motors without any restriction on the motor model and the current excitation. Both rectangular and sinewave-excited brushless PM motor drives are examined, and the results are given to demonstrate the effectiveness of the method with dynamic loads in closed estimated position loop.

• OSTI ID: 665361
• Journal Information: IEEE Transactions on Power Electronics, Journal Name: IEEE Transactions on Power Electronics Journal Issue: 4 Vol. 13; ISSN ITPEE8; ISSN 0885-8993
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COORDINATES
ELECTRIC MOTORS
PERMANENT MAGNETS
REAL TIME SYSTEMS
ROTORS