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Delta Active Front End (AFE) Series for Energy-Efficient Bidirectional Power

PRODUKTPARAMETER

  • Bidirectional AC-DC energy transfer with energy feedback
  • Sine wave PWM control for low harmonic current (THD<5%)
  • Power factor correction (PF=1) and grid-independent performance
  • Enhances braking efficiency, industrial automation, and energy savings
Beschreibung
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Beschreibung

PRODUKTMERKMALE

The Delta Active Front End (AFE) Series is a controllable rectifier capable of bidirectional energy transfer between AC and DC systems. By utilizing energy feedback, it significantly reduces energy consumption and enhances the braking performance of inverter-driven systems.

Through sine wave PWM control, high-order harmonic currents are greatly minimized. Power factor correction (PF=1) aligns the AC voltage and current, allowing load and supply capacity to match 1:1, reducing costs for power cables and connected equipment.

The AFE Series eliminates high-order harmonics (THD<5%), maintains performance despite grid fluctuations, and supports parallel operation with excellent dynamic characteristics.

Delta’s AFE2000 Series leverages decades of expertise in AC motor drives, enabling recovered energy from loads to be fed back to the grid instead of dissipating as heat, improving industrial automation efficiency, process scalability, and energy savings while supporting environmental sustainability.

ANWENDUNGSBEREICHE

High Inertia Loads: coarse sand textile machines, horizontal screw centrifuges, drilling machines and machine tools

Four-Quadrant Loads: cranes and hoists, passenger and freight elevators, oil extraction machines

Rapid Braking Required: machine tools, high-speed spindles, bag-making machines

Long-Term Energy Feedback: wind power generation systems, hydropower generation systems

Supports DC Parallel Power Supply: logistics and warehousing systems, wind power generation systems, LED street lighting systems

Provides Good Power Quality for Power Line Products in large communication transmission systems

TECHNISCHE DATEN

Feature CategoryDetails
Power Flow & Power Factor ControlBi-directional AC/DC power flow control and power factor correction approaching 100%, achieving green energy-saving benefits.
Braking OptimizationReplaces braking resistors, reducing heat loss, saving energy, and saving space.
Current Waveform ControlGenerates high-quality sinusoidal current through sine-wave PWM control, significantly reducing harmonic currents.
Harmonic Distortion ComplianceMeets IEEE STD.519–1992 – total current harmonic distortion below 5%.
DC-Side StabilityMaintains constant voltage or current on the DC bus even under unstable grid conditions.
Multi-Drive Parallel SupportSupports parallel connection of multiple AC drives on a shared DC bus.

FAQs

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