On-Line Data Acquisition Using Virtual Instrumentation and Sensor-less Speed Estimation of Three Phase Induction Motor-Neuro-Fuzzy Approach

This study presents online data acquisition of 3 phase voltages (R,Y and B) of induction motor through Virtual Instrumentation (VI) with Lab VIEW 8.2 software package by interfacing with DAQ NI USB 6008 card and sensor-less speed measurement has been made by intelligent combination of Neural Networks and Fuzzy logic called as Adaptive Neuro-Fuzzy Inference System (ANFIS), i.e., Neuro-Fuzzy approach, which has been developed by MATLAB 7.5. The resulting conceptual neural fuzzy model contains the robustness of fuzzy systems, the learning ability of neural networks and can adapt to various situations in real time.