DEAPF active filter device

Working principle rr active filter detects line current in real time and converts the detected harmonics into control signals in the digital signal processor. At the same time, the digital signal processor generates a series of pulse width modulation signals to drive the B power module to output to the grid through the line reactor. The phase is exactly opposite to the direction of the harmonic current of the grid. For currents with equal amplitudes, the two harmonic currents are exactly opposite to each other. Offset, thereby achieving the purpose of filtering out harmonics and purifying the grid current.
Technical featuresrr
Better filtering effect
The harmonic control rate is as high as %, the harmonic control range is as wide as ~th order, and the single harmonic filtering depth can be up to %.
Safer and more stable filtering method
The industry-leading disruptive control mode with high switching frequency minimizes filtering loss and greatly improves filtering speed and output accuracy. It has infinite impedance to the power grid system, does not affect the power grid system impedance, and the output waveform is accurate and flawless, and will not affect other equipment.
Stronger environmental adaptability
Compatible with diesel generators to improve backup power shunt capabilities.
Higher tolerance to input voltage fluctuations and distortion.
The standard lightning protection device improves the ability to withstand severe weather conditions.
The applicable range of ambient temperature is stronger, up to ℃~℃.
More functions
One machine with multiple functions: one filter can control harmonic reactive power and three-phase unbalance at the same time.
Friendly Chinese operation interface: event recording, automatic fault alarm, fault recording and parameter setting functions.
Multiple protection functions: It has multiple protection functions such as overcurrent, overvoltage, undervoltage and overtemperature measurement circuit failure.
More flexible application methods
Advanced modular structure, small volume and high capacity ratio.
With single cabinet capacity, it can be installed in parallel cabinets at most, and can also be easily embedded into third-party cabinets for use.
The simple and flexible plug-in wiring method ensures that no on-site maintenance by professionals is required, making it easy for on-site installation, capacity expansion and maintenance.
Scope of application
This product can effectively control a series of power quality problems caused by excessive harmonics in the power system and increased current and voltage distortion rates, and reduce harmonic content to ensure the safe operation of system equipment. It is widely used in industries with typical non-linear load equipment. Non-linear load equipment mainly includes switching power supplies, inverters, rectifiers, chargers, intermediate frequency furnaces, ore furnaces, electric welding machines, thyristor dimming systems, etc.