MVME133XTS
MVME133XTS
(磁场定向控制)很复杂,需要较强的数字处理能力,问题在于启动时无法获取转子位置信息,因此,在传感器提供有效反馈之前,通常会应用开环初始驱动。为了提供出色的性能,FOC 需要从转子位置和绕组电流中得出磁链和转矩值。
通过 “克拉克变换” 方法将三相绕组电流转换为两相等效电流,然后使用 “帕克变换” 和旋转角度计算旋转坐标,从而得出控制参数、磁链和转矩。
将目标值与补偿反锁信号比较,其差值送入比例 -积分 (PI) 控制器。
MVME133XTS
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