Domestic Design of No-inductive BLDCM Control System
With the upward social economy,people's living pressure increases,and everyone's require-ments for sleep quality are increasing,more patients with OSAS begin to use home sleep ventilator to help sleepy well,in order to reduce the occurrence of apnea,respiratory collapse and other conditions during sleepy.Domestic home sleep ventilator started late,at present,the study of a domestic,efficient non-induc-tive BLDCM control platform is the top priority to seize the domestic sleep ventilator market.In order to a-dapt to the high requirements of precision speed control of the ventilator,FOC vector control was used as the core of the whole algorithm in the domestic MCU HC32F460JETA,and the running time of FOC algorithm accounts for more than 70％.The three-phase current sampling method was used to sample the phase current during the operation of the motor.The sampling voltage was determined by the synovial observer,and the piecewise PID control could improve the fast response of the speed.The feasibility of domestic FOC vector control brushless DC motor control system was demonstrated by experiments.
home sleep ventilatorBLDCMMCU HC32F460JETAlocalization design
万方数据
维普
