Nico Remus

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This paper presents a new control method for direct matrix converters (DMC) which combines direct torque control (DTC) of induction machines with direct voltage control (DVC) of the capacitors in the LC filter. It stabilizes the LC filter while advantages of DTC are retained. Passive damping is not necessary which improves the filter characteristics. The(More)
This paper proposes a combined control strategy for direct matrix converters (DMC) to stabilize the input side filter without any passive damping, simultaneously realizing the field oriented control (FOC) of an induction machine (IM) at the output. The speed control of the FOC with subsidiary torque control is left untouched. The rotor flux control loop is(More)
In this paper two recent presented active grid current stabilisation strategies for direct matrix converter based drives with squirrel-cage asynchronous induction machines are compared with there passive counterparts. While the functionality of the active stabilisation strategies has been proven already this publication focuses on the harmonic distortion of(More)
This paper proposes a new commutation approach for direct converters with bidirectional switches based on U<inf>CE</inf>-measurement and verifies the applicability with a commutation scheme for V-connection AC choppers. The practicability is proven experimentally and the current and voltage quality of the one-step commutation is compared with the two-step(More)
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