The static var generator (SVG) with appropriate control method is a good solution to solve the problem of reactive power impact and harmonic pollution which is generated by the nonlinear load. A control strategy using active current separation and the current indirect control is used for SVG. The active current separation is a method for detecting the harmonic and reactive current, and then the sum of the harmonic and reactive current is used as the value of compensation.

The ZDDQ SVG represents the latest generation technology in the power factor correction field. By eliminating the need for switched capacitors and providing dynamic step-less compensation, the SVG offers high performance in a compact package (including wall mounting options).

It operates by detecting the load current on a real-time basis through external CT’s and determining the reactive content of the load current. The data is analysed and the SVG’s controller drives the internal IGBT’s by using pulse width modulation signals to make the inverter produce the exact reverse reactive current of the corresponding load reactive content.

Main features

• Dynamic and stepless compensation: Realize your power factor targets.No more ,no less.
• Results in better pwoer factor with less costs: Better results for critical load by less money on power bills
• Eliminating the weakest link
• Operates in all 3 phases
• Not affected by resonance

ZDDQ SVG is the best solution of active power factor correction