under commutation
英 [ˈʌndə(r) ˌkɒmjuˈteɪʃn]
美 [ˈʌndər ˌkɑːmjuˈteɪʃn]
网络 欠整流; 欠换向; 欠转换
双语例句
- The exact rotor position is required while a permanent magnet brushless servo motor ( PMBSM) is under commutation and control. Howere, position sensors have some fatal defects.
永磁无刷伺服电机的换相和控制都需要准确的转子位置信息，然而位置传感器有其难以克服的缺点。 - The Transient Stability Simulation of AC-DC Hybrid Power System under Unbalanced Commutation Voltage
不对称换相电压下交直流混合系统暂态稳定数字仿真研究 - In this paper an effective mathematical model for HVDC transmission system digital simulation under unbalanced commutation voltage is developed.
本文以BPA中国版暂态稳定程序为基础，提出了一种实用的不对称换相电压下直流输电系统仿真数学模型。 - The accurate rotor position is required while a brushless DC motor ( BLDCM) is under commutation and control. However, the fixing of position sensors is believed to difficult.
无刷直流电机的换相和控制都需要准确的转子位置信息，而安装转子位置传感器是较困难的。 - The influences of different switching mode of PWM are discussed. Then a practical method, "three-state algorithm of invariable duty cycle under forced output mode" is brought out to eliminate the commutation dead band generated by switching among the output interfaces of PWM waveform.
详细分析了PWM脉冲的不同切换方式对电机换相控制的影响，提出消除换相死区的具体算法&强迫输出方式下的2001年上海大学博士学位论文三状态恒定占空比算法。 - This control scheme can greatly raise the motor power factor under the prerequisite of safe commutation and raising the overload capacity.
这种控制方案在保证可靠换流及过载能力的前提下，大大提高了电机功率因数。 - The dynamic performances of the DC system itself are analyzed under the faults of converter station AC buses. Commutation failure and the dynamic process of DC control system and the recovery process of DC system are accurately simulated.
重点分析换流站交流母线故障后直流系统本身的动态特性，精确模拟换相失败、直流控制系统的动态调节过程以及故障后直流系统的恢复过程。