Solution

15KW 3-phase full control PFC

Release time:

2023-05-24 13:40

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PROJECT INTRODUCTION
This solution is a three phase six switch PFC design, supporting bi-directional energy flow; PIM IGBT module is sellected to get smallervolume and higher power density: TI DSP is designed to accomplish7-segment SVPWM three-phase PFC control, reducing the switchingloss, and the system efficiency is higher than 97%%. The power factorunder the rated load is up to 0.999, and iTHD is smaller than 2%.
 
DESIGN SPECIFICATION
Input Voltage 380Vac
Output Voltage 380Vac
Rated Power 15KW
Switching Frequency 16KHz
System Efficiency > 97%

 

FEATURES

· Three phase six switching BOOST rectifier;

· 7-segment SVPWM digital control, smaller iTHD:

· 1.5MHZ AMR current sensor,higher sampling precision and faster response:

· Simple bootstrap circuit to drive IGBT to reduce cost and size:

· RS485 communication;

· 4-20mA current loop parallel communication, faster response:

 

MAIN TOPOLOGY

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MAIN DEVICES
 
Function Part Number Brand
IGBT Module XNG50D24TC3S6 Xiner
Current Detection MCA1101-50-3 Aceinna

 

 MEASUREMENT RESULTS AND WAVEFORMS

 

picEfficiency curve

picPF Curve

 

picSoft start @ no load

picWorking waveform @ full load

 

pic3-phase current woveform @ full load

picStart up @ full load

 

picDynamic: no load->full load

picDynamic: full load->no load

 

pic3-phase unbalance working waceform

picPFC OVP protection

 

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15KW 3-phase full control PFC

2023-05-24