左心室辅助装置脉动载荷下无位置传感器无刷直流电机的速度控制  

Speed Control of Sensorless Brushless DC Motor in Left Ventricular Assist Device Under Pulsating Load

作　　者：谭亚[1] 尹成科[1] 谈雪丹 陈琛[1] 

机构地区：[1]苏州大学机电工程学院,江苏苏州215021 [2]苏州同心医疗器械有限公司,江苏苏州215125

出　　处：《电机与控制应用》2015年第6期43-46,53,共5页Electric machines & control application

基　　金：国家(青年)自然科学基金(51407123;81471754);国家高技术发展计划(863计划)2012AA041605

摘　　要：由于心室搏动产生的脉动流使得左心室辅助装置工作在脉动载荷下,导致电机转速会发生周期性波动,进而影响泵的效率和血液流动特性。针对左心室辅助装置设计了转速闭环控制方法以抑制脉动载荷引起的转速波动。仿真和试验表明在脉动载荷情况下有效地降低了转速波动范围,改善了左心室辅助装置性能。Since a certain amount of pulsatility remains in blood flow because of ventricular pumping, LVADs work under a pulsating load, which causes speed fluctuation in the motor and subsequently harms the efficiency of a LVAD and blood flow pattern. A speed closed-loop control method aiming to suppress speed fluctuation caused by pulsating load has been designed for an example LVAD. Simulation and experimental results showed that speed fluctuation was effectively reduced under pulsating load, improved the performance of the LVAD.

关 键 词：人工心脏 无刷直流电机 周期性脉动载荷 PID控制 无位置传感器 

分 类 号：TM301.2[电气工程—电机]