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APFGD Active Filter Cabinet

The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues. By connecting an external current transformer (CT) to continuously monitor the load current in the grid, and leveraging DSP, FPGA, and CPLD chips along with state-of-the-art fast harmonic or reactive‑power extraction techniques, it rapidly analyzes the harmonic and reactive components of the load current. Based on user‑defined setpoints, the system generates PWM pulses that drive a bidirectional converter composed of three‑level IGBT modules, thereby producing compensation currents that meet grid requirements. This enables dynamic, precise compensation of harmonic and reactive currents, ultimately enhancing power supply quality.

Category:

Low-Voltage Automatic Filter Compensation Device

Product Manual

Hotline:

18028173868

Product Consultation
  • Summary
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    • Commodity name: APFGD Active Filter Cabinet

    The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues. By connecting an external current transformer (CT) to continuously monitor the load current in the grid, and leveraging DSP, FPGA, and CPLD chips along with state-of-the-art fast harmonic or reactive‑power extraction techniques, it rapidly analyzes the harmonic and reactive components of the load current. Based on user‑defined setpoints, the system generates PWM pulses that drive a bidirectional converter composed of three‑level IGBT modules, thereby producing compensation currents that meet grid requirements. This enables dynamic, precise compensation of harmonic and reactive currents, ultimately enhancing power supply quality.

    The APFGD/SVGGD device is a novel power electronic system designed to address power quality issues. By connecting an external current transformer (CT) to continuously monitor the load current in the grid, and leveraging DSP, FPGA, and CPLD chips along with state-of-the-art fast harmonic and reactive‑power extraction techniques, it rapidly analyzes the harmonic and reactive components of the load current. Based on user‑defined setpoints, it then generates PWM pulses to drive a bidirectional converter composed of three‑level IGBT modules, producing compensation currents that meet grid‑specific requirements. This enables dynamic, high‑precision compensation of harmonic and reactive currents, thereby enhancing power supply quality.

     

    Product Features:

    ► The module control board compartment within the device achieves an IP6X dust‑proof rating, ensuring effective isolation between the control and power sections.

    ► Using the SOGI algorithm, the device’s total response time is less than 2 ms.

    ► Vertical modular design, saving space and reducing the number of cabinets; single-cabinet capacity: 600 kvar.

    ► Industry-leading IGBT redundancy design ensures that a single‑channel failure does not affect normal system operation.

    ► The output employs an interleaved parallel control scheme, which can reduce ripple current by nearly 40%.

    ► Intelligent sleep mode and a parallel‑operation system employ a round‑robin scheduling mechanism, evenly distributing workload during low‑load conditions to extend module lifespan.

    ► The PC and mobile apps enable intelligent remote monitoring of the operating status of each module.

    ► The device features harmonic filtering of the 2nd to 51st harmonics, instantaneous compensation of inductive and capacitive reactive power, and three-phase unbalance mitigation.

     

    Technical Specifications:

    Grid voltage

    400V (-40% to +20%)

    Grid frequency

    50 Hz/60 Hz (±10%)

    Overall machine efficiency

    ≥98%

    Wiring method

    Three-phase three-wire / Three-phase four-wire

    Heat loss

    <2%

    CT Transformer ratio

    150/5~10000/5

    Response time

    <2ms

    Cooling mode

    Smart Air Cooling

    Altitude

    ≤2000m, 2000m–4000m derating

    Operating temperature

    -10℃ to +50℃ (derated operation above 40℃)

    Relative humidity

    5%~95%, non-condensing

    External sampled current signal

    Three-phase current   (A phase, B phase, C phase)

     

    Specification and Model Description:

    Transformer capacity (kVA)

    Filter capacity

    Output capacity

    Module Configuration

    Inside the cabinet
    Circuit breaker

    Recommended style

    Cabinet dimensions
    (Width * Depth * Height)

    630

    100A

    100A

    1x100A

    160A

    Wall-mounted

    600x600x2200

    800

    150A

    150A

    1x150A

    250A

    Wall-mounted

    600x600x2200

    1000

    150A

    150A

    2x100A

    315A

    Rack-mounted

    600x800x2200

    1250

    300A

    300A

    2x150A

    400A

    Rack-mounted

    600x800x2200

    1600

    350A

    350A

    150A+2x100A

    500A

    Rack-mounted

    600x800x2200

    2000

    400A

    400A

    4x100A

    630A

    Vertical

    600x800x2200

    2500

    500A

    500A

    5x100A

    800A

    Vertical

    800x800x2200

    3150

    700A

    700A

    4x150A+100A

    1000A

    Vertical

    800x800x2200

     

    Product Dimensions Diagram:

    Schematic diagram of a vertical modular assembly cabinet

    img

     

    Schematic Diagram of Rack Module Assembly Cabinet

    img
    Key words:
    • Filtering
    • vertical type
    • compensation
    • module
    • method
    • wall-mounted
    • current
    • capacity
    • intelligent

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