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In this paper, a comprehensive and practical method of implementing speed range extended maximum torque per ampere (MTPA) control for permanent magnet synchronous machine (PMSM) is presented. The inverter-based method of measuring PMSM parameters, including winding resistance and d- and q-axis flux linkages, is introduced. The nonlinearities of the inverter, including voltage amplitude error and voltage...
We presented an analytical model which predicts a voltage enhancement in photocurrent-matched double-junction cells due to luminescent coupling between the two junctions. We demonstrated that the voltage increase between VMPP to VOC can be computed in terms of the luminescent coupling efficiency. Then we examined the model by simulation of a double-junction cell under different luminescent coupling...
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