APF Active Power Filter Cabinet
Short Description:
The active power filter uses an external current transformer (CT) to monitor the load current in real time, and through internal DSP calculations, it extracts the harmonic components of the load current. Then, it sends these components to the internal GBT via PWM signals to control the inverter to generate a current equal in magnitude but opposite in direction to the harmonics, injecting it into the grid to compensate for harmonic currents and achieve filtering.
Product details
Working Principle of APF Active Power Filter Cabinet
The active power filter detects the load current in real time through an external current transformer (CT). It then extracts the harmonic components of the load current via internal DSP calculations. Subsequently, it sends a PWM signal to the internal GBT, controlling the inverter to generate a current with the same magnitude but opposite direction to the harmonic current, which is injected into the power grid to compensate for harmonic currents and achieve filtering.
