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Thanks to an inner redundancy, AC Multi-Drives can be made fault tolerant with minor modifications of their structure. However, some additional components are generally required in order to create emergency current paths in case of a fault. According to a recently presented approach the amount of additional components can be reduced by exploiting healthy drives to support faulty drives. In this case...
This work aims to investigate a novel fault tolerant topology for Permanent Magnet Synchronous Generator (PMSG) based Wind Power Systems (WPS), where the static power converter consists of two three-phase inverters connected in back to back configuration. The first inverter is used to control the PMSG while the other one is used to deliver power to the grid through an output filter and a line frequency...
The paper deals with an original control strategy for AC Multi-Drive (MD) systems able to mitigate failures on one or more drives, through a minimal system reconfiguration. In particular, fault tolerance capability is achieved by isolating the failed inverter legs and connecting together the neutral point of stator windings of all motors; moreover, control algorithms are modified in order to maintain...
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