In industrial automation, new energy testing, and precision manufacturing, a high-power AC stabilized power supply is essential for ensuring system stability, test accuracy, and long-term equipment reliability.
As a leading Chinese manufacturer of programmable AC power supplies, FUYUAN has developed the DSP series high-power AC stabilized power supplies, which demonstrate strong performance in high-voltage and high-current testing scenarios. While these systems offer advanced precision and scalability, they also present certain operational challenges.
1. Technical Advantages of FUYUAN DSP High-Power AC Stabilized Power Supplies
1.1 High Precision Output and Fast Dynamic Response
FUYUAN DSP series AC stabilized power supplies use high-frequency switching technology combined with DSP digital control, achieving:
- Voltage regulation accuracy: ≤ ±0.1% FS
- Current ripple: as low as 0.3% FS
Compared with traditional thyristor-based AC power supplies, DSP-controlled systems provide superior output stability. In 1000V high-voltage applications, the response time reaches the millisecond level, effectively preventing voltage overshoot and waveform distortion caused by sudden load changes.
This makes the system ideal for:
- Energy storage converter testing
- High-voltage motor testing
- Sensitive power electronics validation
1.2 Modular Architecture and Scalable Power Configuration
The DSP series adopts a modular AC power supply design, supporting:
- Parallel operation of up to 200 units
- Power range: 600W to 2000kW
- Output voltage: 0–1000V
- Output current: 0–2000A
Multiple communication interfaces (RS232, RS485, GPIB) and MODBUS-RTU protocol support allow easy integration into:
- Automated test systems
- Industrial control platforms
- Laboratory environments
1.3 High Efficiency and Comprehensive Protection Design
By using PWM control technology, FUYUAN high-power AC stabilized power supplies achieve conversion efficiency up to 93%, reducing energy consumption by more than 15% compared to conventional designs.
Integrated protection features include:
- Over-voltage protection (OVP)
- Over-current protection (OCP)
- Short-circuit protection
- Over-temperature protection
With fully isolated input/output design and 1500VAC / 1-minute dielectric withstand capability, the system ensures reliable operation in harsh industrial environments.
1.4 Programmable Modes and Multi-Scenario Adaptability
The DSP series supports automatic switching between:
- Constant Voltage (CV)
- Constant Current (CC)
- Constant Power (CP)
Users can preconfigure up to 100 programmable test profiles, enabling complex automated testing workflows. In new energy applications, the power supply can accurately simulate battery charge–discharge curves and dynamic grid conditions.
2. Typical Applications of FUYUAN High-Power AC Stabilized Power Supplies
2.1 Industrial Testing and R&D Laboratories
FUYUAN AC stabilized power supplies are widely used in:
- Photovoltaic inverter testing
- Energy storage system validation
- 5G base station power testing
The DSP2000 series allows rapid recall of preset parameters, significantly reducing test setup time and accelerating product development cycles.
2.2 Precision Manufacturing and Sustainable Production
In industries such as electroplating and metallurgy, low output ripple (≤1%) improves process consistency and surface quality. The forced-air cooling system and IP30 protection rating enable stable operation in high-temperature and high-humidity environments.
2.3 Energy Recovery and Cost Reduction
FUYUAN’s regenerative AC power supply technology feeds test energy back to the grid, achieving system efficiency above 90%. Combined with data logging and synchronization, this helps enterprises comply with regulatory standards while significantly reducing long-term operating costs.
3. Limitations of FUYUAN High-Power AC Stabilized Power Supplies
3.1 Higher Initial Investment
High-power models above 600kW require advanced components such as high-density resistors and precision thermal control systems, resulting in higher upfront costs compared to standard AC power supplies.
3.2 Cooling and Noise Considerations
During full-load operation, cooling fan noise may reach 65 dB (measured at 1 meter), making additional sound insulation necessary in noise-sensitive environments. Continuous operation above 40°C may require customized cooling solutions.
3.3 Learning Curve for Advanced Configuration
Advanced functions such as multi-unit parallel control and programmable communication protocols may require professional training, especially for small and medium-sized enterprises.
Conclusion
With its strengths in precision control, modular scalability, programmable operation, and energy efficiency, FUYUAN DSP high-power AC stabilized power supplies represent a competitive domestic alternative to imported brands. They are particularly suitable for industrial automation, new energy testing, and scientific research applications where stability and accuracy are critical.
