Interaction between the current controller and the injection of alternating carriers in sensorless drives
作者： R. Leidhold , P. Mutschler
DOI: 10.1109/SPEEDHAM.2008.4581142
关键词:
摘要: The injection of an alternating voltage carrier, which is generated by the inverter, allows to detect rotor position in PM synchronous motors evaluation anisotropies. There are however some limitations on carrier frequency. On one hand, it must be much lower than inverterpsilas switching other hand high enough order avoid being attenuated current controller. As controllers usually designed reach highest possible bandwidth, proposals for carrier-based detection methods their bandwidth limited. In this paper, interaction between controller and injected studied. A method keep while maximizing path gain proposed optimize detection.
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