Delta Active Front End (AFE) Series for Energy-Efficient Bidirectional Power
PRODUCT PARAMETERS
- 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
Description
FAQs
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Description
PRODUCT FEATURES
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.
APPLICATION FIELDS
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
TECHNICAL SPECIFICATIONS
| Feature Category | Details |
|---|---|
| Power Flow & Power Factor Control | Bi-directional AC/DC power flow control and power factor correction approaching 100%, achieving green energy-saving benefits. |
| Braking Optimization | Replaces braking resistors, reducing heat loss, saving energy, and saving space. |
| Current Waveform Control | Generates high-quality sinusoidal current through sine-wave PWM control, significantly reducing harmonic currents. |
| Harmonic Distortion Compliance | Meets IEEE STD.519–1992 – total current harmonic distortion below 5%. |
| DC-Side Stability | Maintains constant voltage or current on the DC bus even under unstable grid conditions. |
| Multi-Drive Parallel Support | Supports parallel connection of multiple AC drives on a shared DC bus. |
FAQs
Which Delta power supply products do you offer?
As a trade-and-manufacturing integrated company, we offer a full range of Delta power supplies, including switching power supplies, industrial power modules, and DC regulated power supplies, suitable for industrial automation and various electronic equipment.
Can the products be customized?
Yes. We provide customized solutions based on customer requirements, including voltage, power, and functional extensions, with professional technical support to ensure feasibility.
How are the products shipped?
We ship via reliable logistics and courier services, offering full tracking to ensure the products reach customers safely and on time.
What is the ordering process?
The process is simple: select the model → submit requirements → confirm the solution → arrange payment → delivery and technical guidance. We provide full support to ensure each step is completed smoothly.
What after-sales services are included?
We provide original manufacturer warranty, spare parts supply, operation guidance, maintenance, and troubleshooting services to ensure Delta power supplies operate stably and reliably.
