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reference designLM76003RNPR | Demoboard TIDA-01606 Power Card

Texas Instruments LM76003RNPR | Demoboard TIDA-01606 Power Card

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

Overview

TopologyBuck Converter
Input voltage15 V
Switching frequency300-2200 kHz
Output 112 V
IC revisionE4

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.The system is controlled by a single C2000 microcontroller (MCU), TMS320F28379D, which generates PWM waveforms for all power electronic switching devices under all operating modes.

Features

  • Rated Nominal and Max Input Voltage at 800-V and 1000-V DC
  • Max 10-kW/10-kVA Output Power at 400-V AC 50- or 60-Hz Grid-Tie Connection
  • Operating Power Factor Range From 0.7 Lag to 0.7 Lead
  • High-Voltage (1200-V) SiC MOSFET-Based FullBridge Inverter for Peak Efficiency of 98.5%
  • Compact Output Filter by Switching Inverter at 50 kHz
  • <2% Output Current THD at Full Load
  • Isolated Driver ISO5852S With Reinforced Isolation for Driving High-Voltage SiC MOSFET and UCC5320S for Driving Middle Si IGBT
  • Isolated Current Sensing Using AMC1301 for Load Current Monitoring
  • TMS320F28379D Control Card for Digital Control

Typical applications

  • Programmable logic controllers
  • Telecommunications infrastructure / Asset and fleet management systems / Video surveillance

More information

Products

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
L(µH)
ISAT,10%(A)
ISAT,30%(A)
IR,40K(A)
IRP,40K(A)
RDC max.(mΩ)
fres(MHz)
Size
Version
C
VR(V (DC))
Endurance(h)
IRIPPLE(mA)
RESR(mΩ)
ILeak(µA)
DF(%)
Ø D(mm)
L(mm)
Packaging
SamplesAvailability & Sample
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7447709220
SPECWE-PD SMT Power Inductor, 22 µH, 6.5 A

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

Simu­lation
Availability
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-PD SMT Power Inductor
Inductance22 µH
Saturation Current @ 10%6.5 A
Saturation Current @ 30%8 A
Rated Current5.3 A
Performance Rated Current7 A
DC Resistance28 mΩ
Self Resonant Frequency10 MHz
Size1210 
VersionStandard 
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Length12 mm
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875105444004
SPECWCAP-PSLP Aluminum Polymer Capacitors, –, –
Simu­lation
Availability
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Downloads8 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-PSLP Aluminum Polymer Capacitors
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Size6.3 x 5.8 
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Capacitance33 µF
Rated Voltage20 V (DC)
Endurance 2000
Ripple Current2200 mA
ESR35 mΩ
Leakage Current600 µA
Dissipation Factor8 %
Diameter6.3 mm
Length5.8 mm
Packaging15" Tape & Reel 
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