Combination of voltage model and high-frequency signal injection for sensorless permanent magnet synchronous motor drives

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openAccess

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A4 Artikkeli konferenssijulkaisussa

Date

2004-09-05

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Language

en

Pages

6

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International Conference on Electrical Machines (ICEM'2004)

Abstract

The paper proposes a method for the rotor speed and position estimation of permanent magnet synchronous motors, applicable in a wide speed range including standstill. A modified voltage model is used at high speeds, and it is combined with a high-frequency signal injection technique at low speeds. The fast dynamic response of the voltage model is thus augmented with the steady-state accuracy of the high-frequency signal injection technique. The stability and robustness of the combined observer are demonstrated by simulations and experiments.

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Keywords

permanent magnet synchronous machine, sensorless control, signal injection

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Citation

Piippo, A, Hinkkanen, M & Luomi, J 2004, Combination of voltage model and high-frequency signal injection for sensorless permanent magnet synchronous motor drives . in International Conference on Electrical Machines (ICEM'2004) . Cracow, Poland .