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This paper proposes a current controller for signal injection‐based control schemes such as those for parameter identification and position sensorless control. In a conventional current control system with voltage signal injection, the separation of the injected frequency components from the current is carried out by using band stop filters. However, the separation is not accurate, especially when...
This Paper proposes current controller for signal-injection based control schemes such as parameter identification and position-sensorless control. In conventional current control system with voltage signal-injection, the injected frequency current separation is carried out by BSFs. However the separation is not properly conducted especially during transient state and when the current controller bandwidth...
In this paper, we proposed the new sensorless control approach with relatively low frequency signal injection to reduce acoustic noise and vibration. Filters that are classically used in signal processing of currents are the main obstacle to high dynamic performance and even it make unstable the control system when the signal frequency become low enough that is close to the bandwidth of current controller...
This paper proposes a new method of modelling of inductance spatial harmonic components for a position sen-sorless control. The conventional methods for the sensorless control based on mathematical model consider only fundamental components of the inductances. This cause several problems including limited controller's bandwidth. The proposed method is based on the fact that the estimated back electromotive...
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