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1)  positive and negative sequence current
正负序电流
1.
The positive and negative sequence current separate control strategy is utilized.
基于这种方法,设计了正负序电流独立控制的功率平衡控制策略。
2.
Generalized integrator was used to realize static error free tracking control of positive and negative sequence current under two-phase static coordinate.
并采用广义积分器原理实现对三相电流在两相静止坐标下的控制,实现了正负序电流的无静差跟踪控制。
2)  Positive and negtive current
正序、负序电流
3)  positive-and negative-sequence currents
正负序电流分量
4)  negative sequence current
负序电流
1.
Design and application of generator negative sequence current monitoring instrument;
发电机负序电流监测仪的设计与实现
2.
Much more attention is paid to the analysis of the method how to define the characteristic curves of phase sensitive symmetrical short circuit protection, the design of negative sequence current filter and the definition of the mathematical model of overload.
重点介绍了对称短路相敏保护特性曲线的确定方法 ,设计了负序电流滤波器 ,建立了过负荷保护的数学模型 。
3.
Aiming to characteristic of 3-phase to 2-phase power supply based on balance transformer, a new current balance compensation method utilizing inverter is proposed, which is mainly used to compensate negative sequence current.
从而使平衡变压器两相侧的输出电流对称,消除平衡变压器三相侧产生负序电流的条件,达到三相电流对称的目的。
5)  negative current
负序电流
1.
Analysis of negative current in switching tests for load tap on-load tap-changers of transformers;
变压器有载分接开关切换试验中负序电流分析
2.
Analysis of the operation of the generator negative current protection impacted on by the electric railway loading
电气化铁路负序电流对发电机负序过流保护的影响
3.
According to the frequency excursion in power systems, this paper proposes a detecting method of harmonic negative current instructions.
针对电网出现的频率偏差 ,提出一种谐波负序电流指令的检测方法。
6)  negative-sequence current
负序电流
1.
Electric railways have witnessed great development in Chinese railway system;however,the serious negative-sequence current,harmonics,reactive power and load fluctuation during the running process influence the electric power quality.
电气化铁道在全国铁道系统中都有了很大的发展,然而运行中易产生严重的负序电流、谐波、无功及负荷波动,对电能质量有一定程度的影响。
2.
The running state of three-phase asynchronous motor is monitored by negative-sequence current method and zero-sequence current method.
利用负序电流法和零序电流法监测三相异步电动机的运行状态,并设计电动机保护电路和PLC的控制梯形图,用FX系列PLC进行故障类型判别和报警处理,设计方案原理简单、工作可靠。
3.
The harm of negative-sequence current produced by electric train is analyzed.
介绍了沪杭电气化铁道工程的简况以及电气化列车运行时输出的负序电流的危害。
补充资料:正负
1.正与反。
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