CVCF Power Supply
Product Overview:
LCX Power-TWP constant voltage & constant frequency (CVCF) power supply adopts AC-DC-AC double conversion architecture, equipped with IGBT power devices and full digital DSP closed-loop control. It can convert fluctuating input power from mains or generator into AC power with fixed, precise voltage and frequency. Regardless of input voltage and frequency drift, the output maintains constant preset value, reconstructing distorted waveform into high-quality pure sine wave. Built-in isolation transformer realizes electrical isolation and suppresses grid surge, spike and harmonic interference. Support single-phase / three-phase configuration and power customization. It is widely used to provide high-stable power supply for precision instruments, industrial production lines, airport/ship ground equipment and generator power quality conditioning.
Typical Applications：
· Power quality conditioning for generator sets, stabilize generator voltage & frequency
· Constant power supply for precision machining, semiconductor and medical imaging equipment
· Steady power supply for 400Hz ground equipment of port, marine and aviation
· High-quality power protection for industrial automatic production lines and PLC systems
· Power grid quality improvement for overseas factories and remote mining areas
· Long-term reliability test in laboratories, provide benchmark stable power
Technical Specifications：
1. Topology & Structural Design
AC-DC-AC double conversion topology, full digital DSP closed-loop control, SPWM sine wave modulation. Built-in isolation transformer, optional single-phase or three-phase. Modular structure, power customizable, optional static bypass for uninterrupted switching.
2. Electrical Performance
· Wide input tolerance, adapt to fluctuating grid and generator power
· Pure sine wave output, THD ≤3%, low waveform distortion
· Voltage stability precision up to ±1%（high precision model ±0.2%）
· Frequency locked at 50Hz/60Hz/400Hz, frequency accuracy ±0.05Hz
· Strong overload capacity, withstand 2~3 times rated instantaneous inrush current
· Adapt to resistive, inductive, capacitive and unbalanced three-phase loads
3. Complete Multi-level Protection
Input overvoltage/undervoltage, phase loss & phase sequence protection; output overvoltage, overcurrent, short-circuit, over-temperature protection; overload alarm and shutdown. Fault data recording and acousto-optic alarm.
4. Power Conditioning Function
Filter grid noise, surge and harmonic interference. Isolate load and front power source, avoid load reverse impact on upstream power supply.
5. HMI & Communication Interface
Color touch screen, real-time display voltage, current, frequency, power and running status. Standard RS485, optional Ethernet, Modbus protocol. Support remote monitoring and upper computer connection.
6. Environmental Adaptability
Intelligent temperature-controlled air cooling, fan speed automatic adjustment. Operating temperature: -15℃ ~ +40℃. Low noise design, suitable for workshop, laboratory, power station and equipment room.
Technical Parameters and Selection
Technical Parameters and Selection
