Three-phase intelligent programmable frequency conversion power supply 20KVA

I. Basic Features of Variable Frequency Power Supply

1. Input and output are completely isolated, ensuring safe and reliable power supply;

2. Utilizes SPWM sine wave pulse width modulation technology, offering fast response and stable output;

3. IGBT high-frequency static inversion, featuring compact size, light weight, low noise, and high efficiency;

4. Employs a unique dual-loop control method for instantaneous and RMS values, ensuring high control precision, excellent waveform quality, and adaptability to various loads;

5. High-power IGBT modules and highly integrated module drive circuits ensure reliable operation, strong overload capacity, low loss, and high efficiency;

6. Suitable for various loads including resistive, inductive, and rectifier loads;

7. Equipped with protection functions for abnormal conditions such as overheating, overcurrent, and short circuits;

8. Features parameter memory function and shortcut key operation;

9. Online adjustable power supply voltage and settable output frequency;

10. Three-phase independent power H-bridge topology, capable of handling unbalanced three-phase loads;

11. Multiple test modes to accommodate various testing and adjustment requirements

II. Basic Block Diagram of Variable Frequency Power Supply

III. Basic Electrical Schematic of Variable Frequency Power Supply