SVG (Static Var Generator) is a series product in typical applications of flexible alternative current transmission systems and its basic principle is to constitute a self-commutation bridge circuit by means of the turn-off power electronic devices (IGBT), connect to the grid in parallel through the reactor, properly adjust the amplitude and phase of the output voltage at the bridge circuit AC side r directly control its AC side current and quickly absorb or issue the required reactive power to achieve the purpose of rapid and dynamic reactive regulation.

With the single module compensation capacity of 50kvar, BGMD SVG50 is mainly used for dynamic reactive power compensation of 400V low-voltage network and can output the compensating current with controllable amplitude and phase and the output current can offset the reactive current and harmonic current to be compensated in the load current to improve the power factor, purify the power quality and finally get the expected compensation effect.

 

SVG Application fields

●  Electric power traction system      The electric locomotive is powered by single phase, the rectification part of the traction converter generates a lot of harmonics and the traction substation load is changing fast with time.

●  Wind/photovoltaic power generation industry      Photovoltaic and wind power generation energy storage inverter and cluster supply power in parallel and the power changes with the light and wind speed. It is required to stabilize the voltage, filter the harmonics and make reactive compensation.

●  Machinery manufacturing and iron & steel industry    The electric arc furnace and rolling mill result in current unbalance in each phase, voltage flicker, low power factor, great reactive and active current changes and generate a lot of harmonics during working, seriously affecting the grid power quality.

●  Port and coal mine enterprises    Load characteristics of large elevator change rapidly and frequently; the motor starting current is large and reaches the maximum instantaneously while generating a lot of reactive power. The motor is nearly idle when the elevator does not work. The DC speed regulating rectifier issues reactive power and generates harmonics.

●  High-frequency induction welder and intermediate frequency furnace    Typical rectifier and thyristor inverter, as an impact load, generates a lot of higher harmonics, seriously affecting the grid power quality.

●  Other industries    It can also be widely used in communication, traffic, theater, cement, chemical engineering, medical treatment and other industries.