Influence of non - linear load on electrical energy metering 非线性负载对电能计量的影响
Detect non - linear load active power in circuit 非线性负载有功功率检测原理
The study and discussion of small generating set with non - linear load 对小功率发电机组带非线性负载适应性的研究与讨论
Harmonic , as one of the important aspect in power quality , has become very evident with the non - linear load increasing 谐波,作为电能质量的一个重要方面,随着非线性负荷的增长日益突出。
In recent years , with the development of power electronics technique and the majority of non - linear loads were used , more and more harmonics was injected into the network 近年来,随着电力电子技术的发展以及大量的一些其它非线性负荷的投入使用,越来越多的谐波注入到了电网中。
The active power filter , which can compensate simultaneously the harmonics and reactive power of non - linear loads , is good method to eliminate the harmonic pollution in power system 采用有源滤波器就地吸收谐波源所产生的谐波电流,是消除或限制电力系统谐波污染的一种有效的措施。
Circulating harmonic currents circulating harmonic currents are currents that flow because of differences in voltage waveforms between paralleled power sources , or induced by operation of non - linear loads 谐波环流谐波环流是由并联电源间不同的电压波形或者非线性负荷运转而产生的电流。
Since the beginning of the 70s , harmonic pollution has significantly influenced the operation of power system due to the widespread use of non - linear loads 上世纪70年代以来,由于各种非线性负荷在电力系统、工业部门及家庭中的广泛应用,日益突出的谐波污染问题对电力系统的安全、经济运行造成了严重的危害。
Recently , along with the broad application of power electronics technology , many non - linear loads are used continuously in power systems , which make harmonic content rising rapidly , voltage shape distorting badly and power quality descending 近年来,随着电力电子技术的广泛应用,非线性负载不断引入电力系统,造成电力系统中谐波含量急剧上升和电压波形严重“畸变” ,致使电能质量下降。
Non - linear load like electric arc furnace ( eaf ) is the mainly source producing harmonic in the power supply grid of the steel industry . on the other hand , reactive power impact is largely caused by heavy loads as rolling mills 钢铁企业供配电系统中的谐波主要产生于网内非线性负荷用电设备,如变流装置和电弧炉等;而供配电系统中的无功冲击主要产生于一些单机容量大的轧钢类用电设备,如轧机等。