Active Harmonic Filter (AHF) is a power quality device used to effectively eliminate harmonic distortions in modern electrical systems. Harmonics in electrical networks are defined as fluctuations caused by non-linear loads, and these distortions can seriously degrade the performance of electrical systems. AHFs target these distortions to optimize electrical current and voltage, increasing energy efficiency.
Harmonic distortions are deviations from the sinusoidal waveform and are typically caused by devices used in industrial and commercial environments, such as:
These disturbances can cause equipment overheating, energy loss, overload cables and transformers, and can affect the operation of sensitive devices and increase operating costs.
Active Harmonic Filters are connected in parallel to the network and continuously analyze the load current. During this analysis, they eliminate these distortions by generating currents with equal amplitude but in opposite phase to the detected harmonic currents. As a result, the sinusoidal current and voltage waveform are preserved in the network.
Real Time Response: Ability to instantly detect and eliminate harmonics with high speed processors.
Flexible Operating Range: Effective solution in a wide range from 2nd harmonic to 51st harmonic.
Dynamic Compatibility: Stable performance even under variable load conditions.
Energy Efficiency: Reduces energy costs by minimizing losses in the electrical network.
Equipment Protection: Extends the life of equipment such as motors, transformers and cables.
High Power Quality: Provides a stable energy flow by preserving sinusoidal waveforms.
Reactive Power Support: Improves the power factor by balancing both inductive and capacitive reactive power.
Reducing Phase Imbalances: Corrects imbalances between phases and reduces current in the neutral line.
Active Harmonic Filters have a wide range of applications in many different sectors:
Industrial Facilities: Used in areas with high loads such as production lines, motor drives and induction furnaces.
Commercial Buildings: Improve power quality in energy-intensive environments such as office complexes and shopping malls.
Data Centers: Critical in environments with sensitive electronic devices.
Healthcare Sector: Provides reliable power to ensure the proper operation of medical devices.
Harmonic distortions in electrical systems increase energy costs and negatively affect system reliability. AHFs are an indispensable technology for meeting today's energy efficiency goals and providing equipment protection.
These devices not only reduce energy losses, but also help businesses achieve their sustainability goals.
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