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Method to reduce the speed ripples of single rotator compressor of air conditioner in low frequency
Author(s): 
Pages: 98-102
Year: Issue:  3
Journal: Electric Machines and Control

Keyword:  永磁同步电机单转子压缩机无位置传感器转矩补偿;
Abstract: 针对变频空调系统中单转子压缩机永磁同步电机不易安装位置传感器这一问题,采用旋转坐标系下的电压误差对压缩机电机转子位置和转速进行估算,实现了永磁同步电机的矢量控制.同时,对单转子压缩机系统低速范围内的转速波动原因进行了分析,在估算电机转子位置的基础上,提出了一种自动估算当前负载状况的有效方法,根据当前估算的负载自动进行转矩电流前馈补偿,显著降低了压缩机低速时的转速波动,降低了压缩机的噪声及振动.仿真...
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