Technology Overview
The Evolution of Power Quality Technology
Since the beginning of the electricity era there have been a number of steps to reduce excess energy consumption, improve power quality and reduce operational losses in electrical installations. The introduction of computers and other switching loads such as frequency converters has made conventional compensation techniques not only obsolete but also a part of the problem.
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The Conventional TechniquesTraditionally, power quality problems have been solved with inflexible solutions especially tailored to a specific problem under certain conditions. The evolution in technology has gone from fixed filter banks configured to match a specific installation up to step-wise semiconductor controlled filter banks under automatic control. At best these solutions only compensated for 60-80% of the losses due to their relatively slow response times. Today - Highly Dynamic ProcessesIn today's industrial era, production is a highly dynamic process with a demand for fast response to be able to handle the energy behaviour of modern machinery. Yesterday's power quality solutions all have limitations which, in most cases, makes them more of a problem than a solution. With the introduction of active conditioners such as ADF, with response times down to microseconds, it is now possible to handle even the most intricate loss creating behaviours in realtime, and at a reasonable cost. |
The ADF operational PrincipleAn ADF is basically a very advanced computer controlled current generator with the ability to produce any shape or form of current with little or no delay. The result is an ideal load with a minimum of power losses and disturbances. The energy profile appears ideal to the rest of the network. |
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ADF Active Harmonic Filter – A Smarter Power Technology
The ADF Active Harmonic Filter technology is the result of extensive research and provides a unique way of saving energy in a vast range of applications such as industrial production machines and generator systems. It works by removing energy losses and correcting the electrical behaviour in the time and frequency domains. The ADF functionality is achieved by using state-of-the-art signal processing and advanced control structures to control the power flow to and from the machine with a power processor (power converter).
Energy can be intermediately stored in the ADF making it possible also to deliver energy back to the electrical network (grid) in case of shorter power outages.
