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This work presents the modeling of PZT (Lead Zirconate Titanate) intended for using in low frequency mechanical movement applications such as prosthetic legs. This includes the simplified PZT electromechanical modeling based on PSCAD/PSPICE, simulation and experiment. The model can emulate the behavior of the PZT in variety conditions. The simulation and experimental results well agree with each other...
The high-resolution encoder is typically used to detect the rotor position in Permanent-Magnet Synchronous Motor (PMSM) drive (AC servo drive) in many high performance applications where the high-precision position and extremely low speed controls are required. Therefore, the overall cost of such drive system is generally very expensive. This drive is absolutely not be attractive for low-cost applications...
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