计量误差考虑了电度表电压线圈和电流线圈在不同的谐波次数以及谐波大小时的非线性效应。
The metering error considers the non linear effect of the voltage coil and current coil in watt hour meter under different order of harmonics and different distortion degree of input waveform.
本文探索了两种简化计算方法,即降低谐波计算次数和阻尼绕组近似处理。
In this paper, two simplification methods - decreasing the order of calculated harmonics and approximately treating the damper windings, are proposed and investigated.
利用傅里叶级数对其进行了频谱分析,计算了次数小于19次的各次谐波电流均方根值的频谱数据。
Using Fourier series, the frequency spectrum analysis was analyzed, and spectrum data of harmony wave less than 19 were calculated.
还计算了因忽略很高次数的谐波而造成的误差,论述了合理的脉数选择。
The errors caused by omission of the high-order harmonics are calculated and a reasonable selection of pulse number is discussed also.
应用这种静止坐标下的谐振控制器对指定次数的谐波电压进行闭环控制,使DVR具备补偿谐波电压的功能,而对基本DVR的电压凹陷补偿性能的影响很小。
Using this resonance controller to take a closed loop control to selected harmonic voltage makes DVR with a function of harmonic voltage compensation, which has little influence on DC link voltage.
应用这种静止坐标下的谐振控制器对指定次数的谐波电压进行闭环控制,使DVR具备补偿谐波电压的功能,而对基本DVR的电压凹陷补偿性能的影响很小。
Using this resonance controller to take a closed loop control to selected harmonic voltage makes DVR with a function of harmonic voltage compensation, which has little influence on DC link voltage.
应用推荐