| Power System is an indispensable part of the country, the main task of the power system is to provide users with efficient use of energy, typically the harmonic content of the power system have raised certain requirements. Medium frequency induction furnace power system as a nonlinear load in the course of the use inevitably causes harmonic currents and affects the normal operation of production, therefore it is important to study the harmonic components of medium frequency induction furnace.In the process of governace, many scholars and harmonic researchers on the one hand through the use of filtering devices to filter the power system harmonics, on the other hand through the transformation of the electronic devices of the power system so that it does not produce harmonic.Using the power filter equipment is the main measure of filtering harmonic, by the capacitors, reactors and resistors consist of passive LC filter have low investments simple structure> easy maintenance so it has become one of the widely used reactive harmonic suppression measures, Active harmonic filters have the capability of real-time change tracking compensation, while compensating characteristics of the power system is independent, it is also used widely.With the development of technology and computer technology is widely used in the industrial field, many intelligent simulation software has been favored by researchers, many intelligent simulation software have played an important role in the study of harmonics, for example:PSCAD, MATLAB simulation software,they have the capability of accurating harmonics,so the article for rectifier transformer model S9-1000/6medium frequency induction furnace actual harmonic test, adopting MATLAB software in the process of harmonic analysis,And through the installation of passive filter optimized model the harmonic has been effectively suppress, The design is verified by the simulation of passive filter harmonic suppression performance. |
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