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This paper presents a novel method to estimate the rotor position of a new field assisted switched reluctance motor at standstill and also low speeds. In this method, a high frequency sine wave signal is applied to the field assisted winding on the stator and then the phase of induced signals on each phase winding is monitored to detect the rotor position at standstill. It then continues to sense...
In this paper, a method of modeling synchronous machines with damper windings based on the winding function approach (WFA) has been proposed. This method of machine analysis with the actual winding distribution does not require neglecting the harmonics of the winding distributions. The proposed model can be used to simulate the machine under faulty conditions such as broken damper bars and end ring,...
Switched reluctance motors are often running in status of two phases excited simultaneously. Mutual coupling has effects on not only the flux distribution and magnetic saturation, but also the ability of torque output. The two adjacent phases of switched reluctance motor can be excited in two modes, the long-flux-path mode and short-flux-path mode. The calculation method of mutual inductance in two-phase...
This paper presents a new and novel method which is designed to detect the rotor position at standstill and also at low speeds in switched reluctance motor. In this method a small capacitor is connected in series with the motor winding for sampling the voltage rise during the detection period. The supply voltage in conjunction with the drive transistor produces short pulses for this series connection...
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