Power Quality Filters

Quantum Controls can offer comprehensive 7 days on site analysis
and subsequent report on the harmonic content of you particular plant.

Once we have the result we can then offer the correct solution to ensure
that G5/4 legislation is met. We can offer survey, solution supply with
ABB PQF Filters, installation and commissioning.

The ABB Power Quality Filter offers unprecedented ability to clean the network from harmonics.  The PQF actively eliminates the harmonics present in the supply system in a controlled way.  It is insensitive to large network impedence changes due to change in network topology like paralleling of sources, or switching between mains supply and generator operation.

The PQF monitors the line current in real time and processes the measured harmonics as digital signals in a high-power multi-DSP (Digital Signal Processor) based system.  The digital controller generates Pulse Width Modulated (PWM) signals that drive IGBT power modules which through line reactors inject harmonic currents in the network with exactly the opposite phase to the components that are to be filtered.

The PQF also offers communication facilities with the customer's existing communication network.  This feature which uses Modbus RTU, allows the PQF to be easily monitored and controlled from a remote location.  The Modbus communication feature can be used by means of a Modbus RS-232 to RS-485 converter (optional).

 

 

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