BENEVIERI A.

Sensorless algorithms for PMSM have achieved an increasing interest in the technical literature. They can be divided into active methods and passive methods. Active methods exploit rotor anisotropy by injecting high voltage frequency signals, whereas passive methods are based on observers. Even if passive methods do not have the drawbacks of...

Rotor position estimation in sensorless control of PMSM at low speed or standstill is often obtained using high-frequency voltage injection. This method leads to some drawbacks, the main of which is acoustic noise. The frequency of the injected signal should therefore be increased to minimize this problem. A square-wave signal injection at the...

A novel induction motor direct torque control (DTC) algorithm with synchronous modu-lation is presented. Compared to the traditional DTC method, whose main drawback is the presence of low‐frequency torque harmonics (sub‐harmonics), in the proposed method, the PWM switching frequency is imposed to be an integer multiple of the main supply...

The use of series architecture nowadays is mainly on hybrid buses. In comparison with series-parallel and parallel architectures, which are usually exploited on medium-size cars, the series architecture allows achieving internal combustion engine higher efficiency. The downside of this architecture, due to a double energy conversion (i.e.,...