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

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Conference article in proceedings
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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 .