Correcting your power factor, eliminating excessive harmonics, and mitigating voltage sags have many long-lasting benefits. Our solutions address the most common problems, ensuring that you always have clean, high-quality power for less unplanned downtime, better equipment performance, and lower electricity bills.

Active harmonic filter (ahf)

      1) Active harmonic filter module                                                        2) Active harmonic filter module                                               3)AHF cabinet

                                                                                                                         

                Rack type AHF                                                                                          Wall type AHF                                                                AHF cabinet    

Functions of AHF (active harmonic filter):

Harmonic mitigation

Reactive power compensation

Three phase unbalance management

Work principle 

 

 

APF detects the load current in real time through the external CT, calculates and extract the harmonic components of the load current through the internal DSP. Then signal from PWM is sent to the internal IGBT, and the inverter is controlled to generate a current with the same magnitude and opposite direction as the load harmonic and inject it into the grid to compensate the harmonic current to achieve the filtering function.

 

Features 

High efficiency: accurate algorithm to reduce IGBT loss, optimized magnetic component design, efficiency≥97.5%

Modular Design, easy engineering

Support multi-machine parallel connection, maximum support 600A,

flexibly meet the user's on-site needs

Maintenance free design

Graphical user interface

Module 4.3inch HMI, cabinet 7 inch HMI

 

Classification and basic parameters 

Installation mode: rack type, wall type

Voltage：LV. HV

Working area: civilian grade/ commercial grade/ industrial grade

Rated voltage: 400v-690V

Rated capacity: 5/10/15/20/25/30/50/75/100/150/200A

Rated frequency:50/60hz