10kW 3-Phase 3-Level Grid Tie Inverter Reference Design for Solar String Inverter

(ACTIVE) TIDA-01606

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Key Document

Description

This verified reference design provides an overview on how to implement a three-level three-phase SiC based DC:AC grid-tie inverter stage.  Higher switching frequency of 50KHz reduces the size of magnetics for the filter design and enables higher power density. The use of SiC MOSFETs with switching loss ensures higher DC bus voltages of up to 1000V and lower switching losses with a peak efficiency of 99 percent. This design is configurable to work as a two-level or three-level inverter.

Features
  • Rated nominal/max input voltage at 800V/1000VDC
  • Max 10kW/10KVA output power at 400VAC 50/60Hz grid-tie connection
  • Operating power factor range from 0.7lag to 0.7lead
  • High voltage (1200V) SiCMosFET based full bridge inverter for peak efficiency of 99%
  • <2% output current THD at full load
  • Isolated current sensing using AMC1301 for load current monitoring
  • Isolated driver ISO5852S with reinforced isolation for driving High voltage SiC MOSFET and UCC5320S for driving middle Si IGBT

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TI Devices (19)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
AMC1306M05  Small Reinforced Isolated Modulator With ±50mV Input and CMOS Interface  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
CSD18534Q5A  60V N-Channel NexFET Power™ MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
CSD88537ND  60-V Dual N-Channel NexFET Power MOSFET, CSD88537ND  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
ISO5852S  5.7 kVrms Split O/P, Reinforced Isolated IGBT Gate Driver   Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules
LM431  2%, 1%, or 0.5% Accuracy Adjustable Precision Zener Shunt Regulator  Voltage references  Sample & Buy Not Available
LM76003  3.5V to 60V, 3.5A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LMT87  2.7V-Capable, 10 uA Analog Output Temperature Sensor in SC70 and TO-92  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
LMT87-Q1  Automotive Grade, 2.7V-Capable, 10 uA Analog Output Temperature Sensor  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
OPA350  High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier™ Series  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA4340  Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier™ Series  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
OPA4350  High-Speed, Single-Supply, Rail-to-Rail Operational Amplifiers MicroAmplifier™ Series  Operational amplifiers (op amps)  Sample & Buy View Design Kits & Evaluation Modules
PTH08080W  2.25 A, 4.5-V to 18-V Input Wide Adjust Miniature Power Module  Step-down (buck)  Not Available View Design Kits & Evaluation Modules
REF2033  Low-Drift, Low-Power, Dual-Output Vref and Vref/2 Voltage Reference  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
SN6505B  Low-Noise 1-A , 420kHz Transformer Driver for Isolated Power Supplies  Isolation  Sample & Buy View Design Kits & Evaluation Modules
SN74LVC126A  Quadruple Bus Buffer Gate With 3-State Outputs  Buffer/driver  Sample & Buy Not Available
TLV1117LV  1-A, Positive Fixed Voltage, Low-Dropout Regulator  Power management  Sample & Buy View Design Kits & Evaluation Modules
TLV704  24V Input Voltage, 150mA, Ultra-Low-Iq Low-Dropout (LDO) Regulators  Power management  Sample & Buy View Design Kits & Evaluation Modules
UCC27211  120V Boot, 4A Peak, High Frequency High-Side Low-Side Driver  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules
UCC5320  2A/2A, Single-Channel Isolated Gate Driver for Bipolar Supply (E) or With Split Output (S)  Gate Drivers  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
AMC1306M05 Download
CSD18534Q5A VSONP (DQJ)| 8 Download
CSD88537ND Download
ISO5852S Download Download
LM431 Download Download
Download Download
Download Download
LM76003 Download
LMT87 Download Download
Download
Download
LMT87-Q1 Download
OPA350 Download Download
Download Download
Download Download
OPA4340 Download Download
Download -
Download Download
OPA4350 Download Download
Download Download
PTH08080W Download -
Download -
REF2033 Download -
SN6505B Download Download
SN74LVC126A Download Download
Download Download
Download -
Download Download
Download -
Download Download
TLV1117LV Download Download
TLV704 Download Download
UCC27211 Download Download
Download Download
Download Download
Download
UCC5320 Download
Download Download

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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1402 12 Mar 2018 448
White papers (1)
Title Abstract Type Size (KB) Date Views
PDF 1217 27 Jul 2018 0
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 861 01 Mar 2018 50
ZIP 10938 01 Mar 2018 77
ZIP 2718 01 Mar 2018 60
ZIP 522 01 Mar 2018 59
ZIP 118 01 Mar 2018 110
ZIP 949 01 Mar 2018 383
Related Tools & Software

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
F28379D controlCARD for C2000 Real time control development kits  TMDSCNCD28379D  Development Kits 

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