公开(公告)号：US09979345B1

公开(公告)日：2018-05-22

申请号：US15644800

申请日：2017-07-09

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Chao-Yun Chen ,  Chi-Ting Yeh

IPC: H02P6/00 ,  H02P29/00

CPC classification number: H02P29/00 ,  H02P6/17 ,  H02P23/12 ,  H02P2205/07

Abstract: A rotor driving system has a rotor, a revolution sensor, a sensing circuit, a controller, and a rotor driver. The revolution sensor is configured to sense a revolution frequency of the rotor so as to generate a measurement signal. The sensing circuit is electrically connected to the revolution sensor and configured to convert the measurement signal into a current revolution measured value. The controller is electrically connected to the sensing circuit and configured to generate an estimated revolution frequency based on a historical revolution measured value, the current revolution measured value, and a reference value, and generate a rotor driving signal based on the estimated revolution frequency and a revolution control signal. The rotor driver is electrically connected to the controller and configured to drive the rotor to rotate based on the rotor driving signal.