CC-TAIM01 51305959-175 模块 美国霍尼韦尔Honeywell

CC-TAIM01 51305959-175 模块  美国霍尼韦尔Honeywell

在伺服驱动器速度闭环中，电机转子实时速度测量精度对于改善速度环的转速控制动静态特性至关重要。为寻求测量精度与系统成本的平衡，一般采用增量式光电编码器作为测速传感器，与其对应的常用测速方法为M/T测速法。M/T测速法虽然具有一定的测量精度和较宽的测量范围，但这种方法有其固有的缺陷，

主要包括：1）测速周期内必须检测到至少一个完整的码盘脉冲，限制了可测转速；2）用于测速的2个控制系统定时器开关难以严格保持同步，在速度变化较大的测量场合中无法保证测速精度。因此应用该测速法的传统速度环设计方案难以提高伺服驱动器速度跟随与控制性能

In the speed closed loop of servo drive, the real-time speed measurement accuracy of motor rotor is very important to improve the dynamic and static characteristics of speed control of speed ring. In order to find the balance between measurement accuracy and system cost, incremental photoelectric encoder is generally used as the speed measurement sensor, and its corresponding common speed measurement method is M/T speed measurement. Although M/T velocity measurement method has certain measurement accuracy and wide measurement range, this method has its inherent defects.

It mainly includes: 1) at least one complete code pulse must be detected in the speed measurement period, which limits the measurable speed; 2) The timer switches of the two control systems used for speed measurement are difficult to maintain strict synchronization, and the accuracy of speed measurement cannot be guaranteed in the measurement occasions with large speed changes. Therefore, it is difficult to improve the performance of servo drive speed following and control by using the traditional speed loop design method

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