说明：双击或选中下面任意单词，将显示该词的音标、读音、翻译等；选中中文或多个词，将显示翻译。 您的位置：首页 -> 词典 -> 负序和零序分量 1)  negative and zero sequence components 负序和零序分量 1. The positive,negative and zero sequence components of three-phase supply voltages can be gained by mathematic analysis and can also be tested by the special instruments. 三相电源电压的正序、负序和零序分量值可通过数学分析计算得到,也可用专用仪器直接测出,对于三相三线制供电系统,在没有专用仪器的情况下,采用制图法求得正序和负序分量是唯一的方法,本文提供的三相电压幅值的不对称量分析计算程序将使三相电源电压的正序、负序和零序分量值的测试工作变的十分简便易行。 2)  zero-sequence component 零序分量 1. A zero-sequence component imposed vector control system of induction machine based on three-level NPC(Neutral Point Clamped) inverter is proposed,which adopts direct rotor-flux-oriented vector control mode. 提出一种基于三电平中点箝位(NPC)逆变器的零序分量注入型感应电动机矢量控制方案。 2. Because there is no need for acquiring the zero-sequence component,this principle can eliminate the effect of zero-sequence mutual inductance between coupling lines. 由于该方法中没有用到线路两端的零序分量,消除掉耦合线路之间零序互感对测距的影响。 3)  zero sequence component 零序分量 1. The new scheme uses zero sequence components as operation component and negative sequence components as restraint component to discriminate whether the fault is in the internal or external zone. 提出一种用零序分量做动作量,负序分量做制动量的综合序分量接地距离继电器。 4)  Positive and negative sequence component 正相序和负相序分量 5)  negative sequence component 负序分量 1. Design of integrated circuit positive sequence component and negative sequence component filter; 集成电路型正序分量和负序分量过滤器的设计 2. Principle investigation and simulation research on pilot zero sequence directional protection with compensation of negative sequence component; 基于负序分量补偿的纵联零序方向保护判据与仿真研究 3. The new scheme uses zero sequence components as operation component and negative sequence components as restraint component to discriminate whether the fault is in the internal or external zone. 提出一种用零序分量做动作量,负序分量做制动量的综合序分量接地距离继电器。 6)  non-zero sequence 非零序分量 1. In unbalanced systems,three-phase input current track the non-zero sequence phase voltages. 当三相电网不对称时,三相输入电流跟踪电网电压的非零序分量,采用传统电网电压选择矢量区间不能保证三相PWM整流器具有较低的开关损耗,且在电网极端缺相故障时,系统不能正常工作。 补充资料：零序电流互感器 分子式：CAS号：性质：剩余电流型漏电保护装置的检测元件。其铁心多是环形的。所有电源线(两根、三根或四根)穿过互感器铁心构成互感器的原边；其二次线圈与极化电磁铁或电子线路联接。正常运行时，互感器一次边各线在铁心中产生的磁通互相抵消，二次线圈不产生感应电动势，漏电保护装置不动作；当后方发生漏电或有人触电时，出现剩余电流，二次线圈产生感应电动势，漏电保护装置动作。纯电磁式剩余电流型漏电保护装置的零序电流互感器必须具有很高的灵敏度。其铁心用铁镍合金或非晶态材料制成。 说明：补充资料仅用于学习参考，请勿用于其它任何用途。 参考词条 ©2011 dictall.com