Design of Utility Filtering Device for Hybrid Active Power in Mine

For the engineering requirements of large-scale power distribution stations to filter out the harmonic and to go on reactive power compensation at the same time,the topology structure of a practical parallel utility filter device for hybrid active power is proposed.The design process of passive and active parts of a filter is introduced.It is aimed at the harmonic governance and reactive power compensation of the 10kV distribution network on the low pressure side of 110kV main transformer substations in a coal mine.The actual operating result shows that it can meet the needs of the site.