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In this paper, a VSI load equivalent is identified as seen from the inverter using recursive least-squares (RLS). By using a single FPGA, sampling points can be synchronized to the space vector modulated (SVM) switching pattern of the inverter, thereby avoiding switching glitch. This reduces the measurement noise significantly and improves the RLS estimate. Synchronized sampling also allows for direct...
Estimation of induction motors has mostly focused on parameter identification for use in Indirect Field Oriented Control (IFOC). Estimation of a general state space system has not received the same attention. In this paper, induction motor state space system is estimated online using Recursive Least-Squares (RLS). The system is estimated as seen from the inverter. More modern method such as subspace...
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