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首页> 外文会议>2013 IEEE International Symposium on Sensorless Control for Electrical Drives and Predictive Control of Electrical Drives and Power Electronics >Adaptive signal amplitude for high frequency signal injection based sensor less PMSM drives
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Adaptive signal amplitude for high frequency signal injection based sensor less PMSM drives

机译：基于高频信号注入的无传感器PMSM驱动器的自适应信号幅度

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摘要

High frequency signal injection based sensor less techniques are well proven and reliable techniques to estimate rotor position from low speed to stand still. However these techniques distort motor currents, which introduce torque ripple and acoustic noise. Lower signal injection amplitude reduces torque ripple but increases position estimation error, so correct signal injection amplitude is required for satisfactory drive performance. More over signal injection amplitude required in transients is higher than steady state conditions. In this work signal amplitude is adaptively increased during transients based on rate of change of load and reduced back to original value under steady state. This work reports implementation details and simulation results of adaptive signal injection based sensor less control. Simulation results shows reduction in torque ripple
机译：基于高频信号注入的无传感器技术已被证明是可靠的技术，可从低速到静止估计转子位置。但是，这些技术会使电动机电流失真，从而引入转矩脉动和噪声。较低的信号注入幅度会降低转矩脉动，但会增加位置估计误差，因此需要正确的信号注入幅度才能获得令人满意的驱动性能。瞬态所需的更多信号注入幅度高于稳态条件。在此工作中，信号振幅在瞬变期间根据负载的变化率自适应增加，并在稳态下减小回原始值。这项工作报告实现细节和基于自适应信号注入的无传感器控制的仿真结果。仿真结果表明减小了转矩脉动

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