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.
|Title of host publication||International Conference on Electrical Machines (ICEM'2004)|
|Place of Publication||Cracow, Poland|
|Number of pages||6|
|Publication status||Published - 5 Sep 2004|
|MoE publication type||A4 Article in a conference publication|
- permanent magnet synchronous machine
- sensorless control, signal injection