Research On Harmonic Manage Of The Regional Power Grid

In today’s society, power is an important energy source with people’s daily lives.With the improvement of people’s living standards, in the era of electrification, thehuman demand for electricity is increasing more and more, electricity facilities andquality requirements demand increasingly high, so a variety of factors led to decline inpower quality will the impact of human concern. In recent years with the advent ofelectrical equipment and other electrified instruments, the frequency converter and theconsequent non-linear loads such as rectifier unit continues to gush, so that there is apower system harmonic physical phenomenon, harmonic generation of electricalequipment or power lines caused great disturbance, is currently the focus of humanattention, especially the power of professionals. Scientists began to seek to eliminate orreduce harmonics based on various measures. Therefore, this article focuses on the rootcause of harmonics, and explore ways to eliminate harmonics, so as to solve the problemof electricity market currently exists harmonics come up with better solutions.It needs the cooperation of the electricity utility and customers to manage powerquality. In this paper, loads of Baotou of Inner Mongolia are analyzed, which leads to thedefinition of harmonics. Analysis of the causes and harmonic harmonic generationbrought harm. Focuses on the measures to control harmonics. Single tuned filter isdetailed descripted. It is telled the Tuning principle of various parameters about the singletuned filter. Final, an aluminium plant of Baotou as an example, After the actualmeasured harmonic of the aluminium plant. Indicates that the main root is mediumfrequency furnace harmonic produced by adding single tuned filter for filtering. Thecustomers require power utility can insure them to use the normal electricity, powerutility require their customers do not influence the normal operation of public networkwhen they use electric power. For every harmonic content is measured, In contrast, thealuminium plant will build five and seven and eleven single tuned filter, the systemharmonic content to meet the standards prescribed of the state.