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STMicroelectronics reveals industry-first embedded software for sensorless zero-speed/high-torque motor control webwire.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from webwire.com Daily Mail and Mail on Sunday newspapers.
The speed estimation method is used in order to eliminate the mechanical sensor for measuring the rotating speed of the permanent magnet synchronous generator (PMSG) which is applied in the standalone generating system, a sensorless method is presented in this paper. The speed is estimated based on the model reference adaptive system (MRAS). The proposed system contains a wind turbine, boost converter followed by uncontrolled rectifier, PMSG, battery storage system, bidirectional converter, three-phase inverter, filter, and three-phase load. There are three goals of the suggested control as follows; achieve the maximum power point tracking (MPPT), adjust the DC-link voltage, and keep the output load voltage constant. The PMSG rotating speed is estimated via the MRAS and it is used as feedback in the MPPT control loop. The flux linkage method is adopted in the MRAS. The performance of the proposed system and the suggested control strategy are examined under different circumstances. The ....
Sensorless fault-detection method for rooftop, large-scale solar Turkish researchers have developed an algorithm to distinguish faults and changes in PV plant output. The sensorless method only uses electrical data gathered from the DC inputs of inverters. They tested it on 8.5 MW of ground-mount PV at nine sites, as well as 8.2 MW across 18 rooftops.Scientists from Turkey s Dokuz Eylul University and Turkish EPC contractor Entegro Enerji Sistemleri have developed a new fault-detection method for large-scale PV plants. They said it works smoothly for both small and large PV systems. They also claimed that it improved operations and maintenance by distinguishing . Den vollständigen Artikel lesen . ....