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Join Geya at the Polish International Solar Energy Expo in Warsaw, Poland, from January 14th to 16th, 2025. This leading renewable energy event connects cutting-edge innovation with practical solutions. Geya will be showcasing its advanced technologies and products in power quality, renewable energy, and relay systems, and we're eager to connect with industry professionals shaping the future of energy. If you're involved in the solar energy sector, this is a must-attend event.

Active power filter is an electronic circuit used to filter out harmonics and electromagnetic interference in power loads. Its working principle is to use amplifiers, filters and other devices to filter and gain the input power signal, while amplifying or attenuating signals of specific frequencies, thereby achieving the effect of filtering out harmonics and suppressing electromagnetic interference.

Active power filter is an advanced power electronic device mainly used to solve power quality problems caused by nonlinear loads in power systems. It actively generates compensation currents opposite to the parameters of harmonics, reactive power, and unbalanced current in the power grid through real-time monitoring, thereby achieving active governance of the power grid. Active power filters play an important role in solving power quality problems in the power system. The following will discuss in detail which problems they can solve.

Static Var Generator (SVG) has the function of a capacitor, but the two differ in function and principle. ‌