APF active power filter
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The active filter detects the load current in real time through the external current transformer CT, extracts the harmonic component of the load current through the internal DSP calculation, and then sends it to the internal IGBT through the PWM signal to control the inverter to generate a current equal to the load harmonic and in the opposite direction, which is injected into the power grid to compensate the harmonic current and realize the filtering function.
Wetown provides a complete solution for the management of power quality problems. It is a new type of
power quality management special equipment made of modern power electronic devices and based on high-speed DSP
digital signal processing technology and CPLD complex programmable logic devices. The use of SVG can be effective
Improve the reliability of the power distribution system, greatly improve the power quality indicators of the system,
increase the power factor, eliminate harmonics, suppress resonance, improve three-phase imbalance, and ensure the
long-term stable and efficient operation of the power system.
2~50 harmonic compensation at the same time, and can specify the times of compensation
>97% operaation efficiency, low loss
95% harmonic filtering rate; 99% fundamental wave reactive power filter rate
Intelligent FFT, FFT and instantaneous reactive power three algorithm modes
Harmonic, reactive power and unbalanced load three compensation modes
Infineon brand IGBT , full function LCD monitoring system
-40%-20% voltage range