矿井提升绞车在计算低频制动电压时，通常采用低频最大力矩是平均力矩1.25倍的折算系数。
We usually take the coefficient 1.25 times the average torque as the low frequency maximum torque to calculate the low frequency braking voltage.
本文从感应电机的静态特性出发，分析了通用电压矢量控制变频调速器的制动功能。
Based on the static characteristics of induction motor, this paper analyzes the braking function of general voltage vector controlled frequency converter.
文章还分析了电机制动时能量的回馈和直流侧母线电压的变化，以及直流电压变化对系统的影响。
The change of DC voltage in braking process and its effect on system and feedback energy are analyzed.
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