The discussion on active power filter

With the development of our social economy, people's demand for electricity is growing. Electricity plays an increasingly important role in the industrial production and daily life. How to control the power quality and improve the environment of electricity, is becoming the focus of the concern of the electric power industry and electricity users. Harmonic governance is an important aspect of improving power quality. Due to the limitation of the traditional passive power filter technology, as well as the continuous development of the technology of active power filter, the role of active power filter is increasingly significant in the area of harmonic governance. In this paper, the development background, key technologies and development trend of active power filter are summarized.