steady load meaning in English

不变负荷
不变负载
恒定负载
稳定负荷
稳定负载

The list betterments aimed at the properties of system : through the testing of dc voltage , pulse width and inverting voltage and frequency can be regulated online to fit for different steady load ; reducing speed ripples by compensating with nonzero voltage working proportional time ; adopting the technology of harmonics suppression . as a result , the high precision and wide speed control is realized and the step out is overcome
针对系统的性能指标，做了如下改进：对直流侧电压的检测，在线调整逆变器导通脉宽、输出电压和频率，可以适应不同大小的恒负载；并用非零电压矢量作用时间进行补偿的方法，减小电机的低速脉动；加入了谐波抑制技术等。