Harmonics – a growing problem in electrical systems today
Various methods exist to compensate harmonics. In the past, harmonics were generally left uncompensated and the electrical feeder equipment was oversized in order to cope with the harmonics. Today, oversizing is generally not seen as an acceptable way of dealing with harmonics, due to cost, safety and environmental reasons. The modern solution is active filters.
Benefits of Compensating Harmonics
There are several benefits of reducing disturbances in the electrical network.
- Lower network utilization
- Lower losses in the transformer
- Prolonged equipment lifetime
- Increased operational efficiency by avoiding unplanned stops
- Noise reduction
- Elimination of pulsating torque
- Standard compliance
Standards for electrical grids
Several standards exist concerning distortion parameters in the electrical grid. Some examples are IEEE 519, G5/4, EN 61000, EN 50160, D-A-CH-CZ, among others. There are also regulatory standards specific to certain industries, such as those for offshore applications. Most often the standards require voltage harmonic distortion to be below between 5-8%.
The Ideal Method: ADF Technology
Using ADF Technology from Comsys, you can experience the ideal method of dealing with harmonics: ADF Power Tuning. ADF technology can’t be overloaded, adapts dynamically to the energy load, and allows specific targeting of individual harmonics. With regards to the last point, ADF Power Tuning can be downsized in order to target a specific problem rather than compensating everything. Downsizing the solution means that the investment is maximally efficient; you can make an investment in a solution that will solve your specific problem(s). Since the solution is modular and parallel to the load, it is highly redundant and able to be easily upgraded in the future.
ADF Power Tuning Product Range
Our product range consists of four main product families:
Each one of them targets different power levels in commercial and industrial applications in the low and medium voltage segments.