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The simulation of a direct torque hysteresis controller (DTHC) driving an interior permanent magnet synchronous machine (IPMSM) is presented in this paper. The underlying switching concept as well as a proposed experimental setup is discussed. Various simulations, varying the torque and current tolerances, are carried out in the low torque and high torque range. Simulation results show a direct influence...
The application of a direct torque hysteresis controller (DTHC) driving an interior permanent magnet synchronous machine (IPMSM) in the dynamic state is presented in this paper. The underlying switching concept as well as a proposed experimental setup is discussed. Positive and negative torque setpoint steps are simulated in the low torque and high torque range. Simulation results show that the number...
A modified modulation strategy for an active rectifier is discussed in this paper. It is designed for an inverter which is structurally based on the topology of the rectifier stage in an indirect matrix converter. This modified modulation strategy is based on a carrier signal whilst the switching frequency is still variable within a certain range. This is dependent on the input value for inverter...
A drive train system (DTS) powered by a battery and driving a permanent magnet synchronous motor (PMSM) is discussed in this paper. A two-level, three-phase conventional inverter with no harmonic filters on both AC and DC sides is used as means of power conditioning. This DTS is modelled as a double oscillator according to the mechanical part in an electric vehicle. Two inverter modulation schemes...
As electrical energy depicts itself as a future-orientated strategy for drives used in passenger cars, it is necessary to consider the conditioning of electrical energy to be used for electrical machines. The high frequent influence to the whole power train is evaluated with a view to the electrical and mechanical components. This influence is determined in reference to a comparison between a symmetric...
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