400v Reactive Active Harmonic Filter For Vfd

AHF Active Power Filter is a quality solution for power quality problems such as harmonics, reactive power and three-phase load imbalance. The APF in parallel with the power grid can detect the harmonics in the power grid in time, generate the reverse phase compensation current through the converter, and dynamically filter out the harmonics in the power grid.

The operation of APF is not affected by various load forms and grid structures. And does not produce harmonic oscillation (resonance) with the system, so as to achieve harmonic control under diverse loads.  Active power filter can fully realize dynamic reactive power compensation, control capacitor switching, and finally improve the power factor of the power grid. At the same time, APF has the function of controlling the current imbalance of three-phase load, so as to comprehensively deal with various power quality problems in the power grid.

Modular design

Active power filter has a professional modular design. Typically, the APF consists of one or several APF modules and an optional touch LCD HMI. Each APF module is an independent harmonic filtering system, and users can change the rating of the harmonic filtering system by adding or removing APF modules.

1. Wide Harmonic Filtering Range: Capable of filtering harmonics from 2 to 50 times, addressing a broad spectrum of harmonic frequencies.

2. Three-Phase Unbalance Solution: Simultaneously resolves the problem of three-phase unbalance, enhancing overall system stability.

3. High Harmonic Filtering Rate: Achieves a high harmonic current filtering rate, potentially reaching up to 95% if the system capacity allows.

4. 100% Current Limiting Output: Allows for the setting of 100% current limiting output, ensuring the long-term stable operation of the equipment.

Active power filter can improve the reliability of power grid and reduce the operating cost by reducing the harmonic level. The harmful tripping of protective devices and the harmful removal of fuses caused by harmonic thermal effect motors, transformers, switching devices and cables are greatly reduced. Equipment is also overheating less, which increases their life expectancy and reduces maintenance costs. For new installations, over-sized distribution equipment can be reconsidered to reduce harmonic sensitivity.

In manufacturing plants, variable frequency drives (VFDS) have been widely used for motor control to save energy. However, they are one of the main sources of harmonic distortion in the network. The APF active power filter can effectively eliminate harmonic distortion caused by variable speed drives in industrial applications. APF delivers power quality benefits to a variety of industries, including:

1. The food and beverage industry

2. auto industry

3. The oil and gas industry

4. Paper and chemical industries

5. pharmaceutical industry

6. Textile and clothing industry

7. Iron and Steel Industry

8. cement industry

9. 
   

   Microelectronics manufacturer

10. Other industries driven by AC or DC