介绍一种具有较宽调速范围的无位置传感器无刷直流电机转子位置检测新方法——反电势3 次谐波检测法。从理论上推导了如何从电机中获取反电势3 次谐波信号, 并将3 次谐波信号转化成转子磁通位置信号。实验结果证明了此方法的正确性。关键词: 无刷直流电动机; 无位置传感器; 3 次谐波检测法Abstract: Th is paper describes a novel senso rless method fo r ro to r flux po sit ion fo r brush less permanent magnet mo to r operat ing over a w ide speed range, by detect ing the th ird harmonic signal of back- emf. How to obtain the th ird harmonic signal and then to t ransfo rm it to the signal of ro to r flux po sit ion is discussed in the paper. Effect iveness of th ismethod is verified by the results of the experiment.Key words: brush less permanent magnet mo to r; senso rless; the th ird harmonic sensing scheme
京公网安备 11010802033920号
Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved
评论