Active Dynamic Filters
ADF provides a unique way of saving energy in a vast range of applications such as industrial production machines and generator systems.
ADFs (Active Dynamic Filters) work by sensing electrical behaviour, then removing energy losses by correcting the electrical behaviour. This is achieved by using signal processing and advanced control structures to manage the power flow to and from the machine with a power processor (power converter). By continuously monitoring the network and injecting exactly the right amount of compensation current – at exactly the right time – the most efficient and accurate solutions to any power quality problem can be achieved.
Save Space
Since one module supports multiple drives, you can save space and ensure flexibility for the future.
Reduce downtime
Avoid unnecessary downtime for maintenance or replacement of equipment affected by power quality issues.
Reduce Costs
Increase energy efficiency while reducing the expense of replacing worn equipment.
Minimise hassle
ADFtype technology is already being included in regulatory demands and equipment warranties — a trend that will only continue to grow.
Why ADF?
ADFs provide a unique way of saving energy in a vast range of applications such as industrial production machines and generator systems.
These disturbances include network unbalance, flicker, and especially harmonics—not to mention the risk of regulatory non-compliance. Those working in the marine, offshore, and water treatment industries are especially vulnerable to these problems.
For decades the common filter solution has been active front end (AFE), but there’s a modern solution that offers an improved competitive advantage. With active filter technology, you get a more compact solution that enables fewer losses and less total harmonic distortion (THD).
ADF is the most flexible system available to help you achieve an LHD. When it comes to price, ADF can reduce total cost of ownership by up to 40% compared to AFE. It’s a versatile yet powerful solution that takes the hassle out of installation and operation.
How does it work?
ADF works by sensing electrical behaviour, then removing energy losses by correcting the electrical behaviour. This is achieved by using state-of-the art signal processing and advanced control structures to manage the power flow to and from the machine with a power processor (power converter). By continuously monitoring the network and injecting exactly the right amount of compensation current—at exactly the right time—the most efficient and accurate solution to any power quality problem can be achieved.
As seen in the image below, each ADF unit is connected in parallel, in shunt, with the load that requires compensation. The power flows of electrical currents between the load and the network are measured and analysed [1] to determine if disturbances such as reactive displacement and/or harmonics are present.
If found, the ADF unit injects phase currents [2] that are the exact opposite of, for example, the harmonics and/or reactive displacement. This is done in order to cancel out the load behavior [ 3 ].
The result is an ideal load with a minimum of power losses and disturbances. The energy profile then appears ideal to the transformer.
Products and solutions
Comsys offer a modular collection with a small set of ADF components. With a short list of spare parts, the liquid cooling and air cooling capabilities, and a full voltage range, your business gets a high degree of reliability and flexibility.
The ADF Product Range
For extreme resonances and interharmonics, to a powerful solution for a compact space, each ADF product targets different power levels in commercial and industrial applications in the low and medium voltage segments.
Talk to an expert today or request a callback for more details and advice.