commutation condition

基本解释

On the condition that there is no material commutation with outside, healing of internal crack and hurt of material depends on the move of internal material and the change of structure.
在与外界无物质交换的条件下，材料内部裂纹与损伤的愈合靠内部物质迁移及结构变化完成。
In this paper, the condition of commutation is analyzed, the lead angle is studied when the rotary direction of motor is changed, and the commutation logic with different lead angle is proposed.
本文较全面地分析了换向条件，研究了正反转时位置反馈信号与旋转电势的相位关系，并给出了不同超前角时的换向逻辑。
This paper compares the commutation failure different results caused by AC system fault and missing pulse in the condition of prediction extinguish angle in ABB HVDC control and protection system.
比较了在ABB直流控制保护系统中采用预测型关断角的前提下，由于交流系统故障和丢失脉冲所引起换相失败的不同后果。