Three Phase High Power Active Harmonic Filter For Vfd

Three Phase High Power Active Harmonic Filter For Vfd

In the field of electrical engineering, maintaining power quality is of Paramount importance. One of the challenges we often face is harmonics, these annoying distortions of electrical waveforms that can wreak havoc on our systems. Among various methods and technologies, active harmonic filters are one of the most advanced solutions.

In short, an active harmonic filter is a device used to reduce harmonic distortion in power systems. These distortions are caused by nonlinear loads, such as variable frequency drives, computers and LED lighting, which can cause voltage fluctuations, increased losses and equipment overheating. Active harmonic filters are the superheroes of power quality, saving the day by detecting and neutralizing these harmonics in real time.

Active Harmonic Filter Working Principle

Active harmonic filters are controlled by a closed-loop, real-time system that keeps an eye on the electrical grid constantly.

1. Current and voltage measurement: The active harmonic filter first measures the current and voltage at the grid connection point. This data is crucial for determining the harmonic content and power factor of the load. 

2. Harmonic detection: The filter analyzes the data to identify the specific harmonic frequencies present in the system. This is crucial because different harmonics require different corrective actions.

3. Anti-harmonic generation: Once the harmonics are identified, the active harmonic filter will generate anti-harmonic current, which is exactly different from the harmonics. These reverse currents effectively cancel out unwanted distortion and restore the waveform to the desired sinusoidal shape. 

4. Real-time correction: This process is continuous, adjusting for changing loads and harmonics in real time. Active harmonic filters act as intelligent guardians to adapt to the changing needs of power systems. 

5. Improve power factor: In addition to harmonics, active harmonic filters also help to improve the power factor, ensure the efficient use of electrical energy, and reduce penalties for low power factor by utility companies.

Why choose our active filter

By choosing our active filters, you get a scalable, modular design solution that makes efficient use of advanced, quiet and cost-effective technical support. Our products strictly comply with power quality standards and regulations to ensure the stability and reliability of the power system. In addition, our active filters help save energy and increase grid capacity, improving the reliability of plant operations, thereby increasing production efficiency while minimizing maintenance costs. It also extends the service life of electrical and process equipment.

Our active filters are equipped with a user-friendly and intuitive human machine interface (HMI) that is easy to operate without complex code. Provide comprehensive technical support and expert guidance throughout the entire equipment life cycle to ensure you get the maximum return on your investment. In addition, our active filters are not sensitive to network conditions, ensuring stable operation in a variety of environments. By choosing our active filters, you are choosing a reliable, efficient and easily managed power system optimization partner.