1) line to line voltage harmonic
线电压谐波
1.
The capacitor voltage could be balanced,and its ripple is smaller,and the line to line voltage harmonic is in the least.
对3种同类五电平逆变器及其对应的调制策略进行对比分析,构建的拓扑所用功率器件最少,等效开关频率为载波频率的2倍,电容电压平衡且波动幅度较小,线电压谐波含量最少。
2) harmonic voltage
谐波电压
1.
Method for measuring harmonic voltage by series active power filters;
串联型有源电力滤波器的谐波电压检测方法
2.
By analysis and comparison,some conclusions are presented as references for revising notional harmonic voltage standard.
谐波电压国家标准GB/T14549-1993正在修订。
3.
The improving the quality of power supply and economical operation of power system depends on the accurate and real-time detection of harmonic voltage.
用仿真软件MATLAB/SIMULINK建立的检测谐波电压实验模型仿真负荷恒定和突变时检测模型的结果表明,检测结果在负荷突变时能迅速跟踪变化,得到与实际相符的基波正序电压和谐波电压,兼顾了检测的准确度和实时性,且检测方法因不受电网频率偏移的影响而易于实际应用。
3) voltage harmonics
电压谐波
1.
Control strategy of matrix converter for reducing output voltage harmonics;
减少矩阵变换器输出电压谐波的控制策略
2.
The voltage harmonics of each condition are compared and the influences of the damper winding analyzed.
针对小型单相同步发电机负载运行时电压波形正弦畸变率大的问题,采用场路耦合时步有限元法建立了小型单相同步发电机的模型,编程计算了发电机在额定负载下,阻尼绕组应用不同连接形式和选用不同材料时的电磁场,比较了各种情况下的电压谐波含量大小,分析了小型单相同步发电机中阻尼绕组的作用。
4) voltage and harmonic
电压/谐波
1.
Based on DT4 Power system voltage and harmonic monitor, by taking full advantage of Windows CE and serial communication, we design the read system which is fit for the condition of industry.
在DT4电网电压/谐波检测仪的背景下,充分利用Windows CE和串行通信的特点,设计并开发出适用于工业现场的抄表系统。
5) overvoltage of harmonic resonance
谐波谐振过电压
6) voltage harmonic resource
电压谐波源
1.
The load voltage is also expanded to harmonic expansion,from this we also reach the conclusion that from the point of the load,three_phases bridge phase_control rectifier circuit is equal to a voltage harmonic resource.
对其负载侧电压进行傅立叶级数展开,得出结论:三相桥式相控整流电路相当于一个包含高次谐波的电压谐波源。
补充资料:线电压
线电压
line voltages
x landlonyo线电压(line voltages)三相电路中A、B、C三相引出线相互之间的电压,又称相间电压。不论星形接线还是三角形接线,三个线电压分别是UAB、UBc和UcA,如图所示。x(A相)A┌───┐│(C相)C│└───┘(A相)(e相)洋 (B相)YC 三相电源的线电压 线电压与相电压间的关系是(以电源侧为例):①对三角形接线,线电压就等于对应的相电压;②对星形接线,则线电压与相电压之间的关系为UAB一UAN一亡BN、亡Bc~亡BN一亡cN和亡cA~亡cN一亡A、。 若三相电源的相电压为正序(负序)对称组,则三相线电压也为正序(负序)对称组。这对三角形电源(或三角形负载)是不言而喻的。对星形电源(或星形负载),以正序对称组为例,有 氏B一么N一亡州一了飞-亡AN/3扩 氏C一么N一氏N一丫丁氏N/30。 亡e、一亡eN一亡AN一丫了亡cN/30。可见,在对称三相电路中,不论三相电源或三相负载,在三角形接法时有UL一U。,在星形接法时有UL~了万~u。,这里,uL和u。分别为线电压和相电压的有效值。
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