RMRAPF Series Active Power Filter

To meet the diverse needs of customers for active power filtering, and to enhance the intelligence, convenience, and stability of harmonic management, the company has developed a new modular three-level active power filter device (APF).

The RMRAPF series is mainly divided into two product categories:

• Harmonic Filtering Products – effectively eliminate harmonic currents, improving overall power quality.

• Reactive Power Compensation Products – supply reactive power support, enhancing power factor and voltage stability.

These products are widely applied in multiple industries, including:

• Tobacco

• Petroleum

• Power generation and distribution

• Textile

• Metallurgy & Steel

• Rail transit

• Plastics & Chemical

• Pharmaceutical

• Telecommunications

• Charging stations

• Photovoltaic (PV) industry

• Municipal engineering

• Commercial buildings

Key Features

• Modular design: Compact size, reduced footprint, flexible for design, selection, installation, and maintenance.
• Three-level topology: Loss reduced by 60%, switching frequency up to 20 kHz.
• High-performance control platform: Uses Texas Instruments 32-bit DSP and ALTERA FPGA, forming a strong dual-core architecture with advanced TTA algorithms for harmonic detection. Capable of compensating up to 51 orders of harmonics with detection accuracy up to 0.1%.
• High-speed data acquisition: Integrated dual-channel 12-bit ADC (TI ADS8558) with 10 V input range, sampling accuracy up to 1.25 µs, ensuring precise and stable performance.
• Advanced IGBT module: Equipped with Infineon EasyPAC-IGBT modules, featuring low-inductance design and reduced switching loss. Operating frequency up to 30 kHz with compact size and higher power density.
• Intelligent temperature control: Real-time monitoring of power module temperature. Automatic alarm and shutdown when exceeding threshold to ensure safe operation.
• Digital harmonic suppression: Adopts full-digital algorithm with advanced PR control to reduce response delay (<10 ms) and ensure accurate harmonic filtering and dynamic compensation.
• User-friendly interface: 5-inch LCD screen with multi-language support, 10-point touch operation, real-time display of voltage, current, THD, PF, and other power quality indicators.
• Efficient cooling system: High-performance fans with redundancy and intelligent fan speed regulation for reliable long-term operation.
• Flexible networking and redundancy: Multiple modules can be connected in parallel for higher capacity and reliability. Supports online hot-swapping and redundancy switching.
• Remote management: Supports optional remote monitoring and control. Provides real-time fault diagnosis, system alerts, and maintenance support.

 Technical Parameters