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The model based temperature control system examined in this paper increases the expected lifetime of IGBT power modules by decreasing the magnitude of temperature swings occurring during operation. In order to achieve this goal additional power losses are produced during low load conditions. This is carried out by presetting a reactive current. The three level neutral point diode clamped three phase...
For drive train efficiency optimization, an accurate but simple loss model of an interior permanent magnet synchronous machine (IPMSM) is proposed. In order to analyze different inverter topologies, switching frequencies and modulation techniques it is necessary that the loss model of the machine takes losses caused by harmonics into account. Considering harmonics and saturation effects, loss characteristics...
This paper presents investigations on the control block diagram of a multi-phase interleaved-switched inverter. Disturbing influences caused by the interleaved switching affect the desired simplicity of the block diagram. A possibility to eliminate these disturbances by a novel discrete-time decoupling network is presented and its functionality and advantage are approved by measurements.
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