1, Honeywell: SmartWave series active power filters are truly effective solutions for harmonic control, and adopt the most advanced active harmonic compensation technology to dynamically eliminate the harmonics in the power grid.
2. Nokia: Nokia's MaxSine active filter is a patented direct phase current control technology, which can provide efficient and fast harmonic reduction and reactive power compensation for the power grid.
3.ABB:ABB's active filtering is to filter out harmonics in the power supply system in a controllable and dynamic way.