TIDM-SOLAR-ONEPHINV

C2000™ Solar DC/AC Single Phase Inverter

TIDM-SOLAR-ONEPHINV

Design files

Overview

This reference design is a digitally-controlled, grid-tied, single-phase, full-bridge DC/AC inverter stage for use in central or string solar inverters. It is a companion to TIDM-SOLAR-DCDC, a front-end DC/DC converter with maximum power-point tracking (MPPT). Together, TIDM-SOLAR-DCDC and TIDM-SOLAR-ONEPHINV comprise a solar inverter for central or string topologies. C2000™ F28M35H52C microcontroller (MCU) is the digital controller for the full-bridge DC/AC inverter stage, efficiently operating the inverter stage while implementing Ethernet-based remote control and monitoring of the inverter. The inverter output is grid tied with anti-islanding protection. This design achieves total harmonic distortion (THD) of less than 5 percent and full-load efficiency greater than 96 percent, providing more energy extraction from a solar installation, reducing detrimental heat dissipation in the inverter and increasing inverter longevity.

Features
  • Implements control of a single-phase, full-bridge, grid-tied, DC/AC inverter with anti-islanding protection
  • C2000™ F28M35H52C MCU serves as a high-performance controller for the DC/AC inverter, executing high-frequency control loops to control the power stage and feed the output into the power grid while implementing Ethernet-based remote control and monitoring of the inverter.
  • Selectable 120/220 VAC outputs up to 600 W, suitable for worldwide solar markets
  • Greater than 96 percent peak efficiency and less than 5 percent total harmonic distortion mean improved energy extraction and longer inverter lifetime.
  • Solar and digital power software libraries provide code-optimized building blocks to implement a variety of power topologies and algorithms such as MPPT and software phase locked loop (PLL) for designing customized solar inverters.
  • Fully-functional reference design includes software, hardware design files, quick start graphical interface and step-by-step documentation.

NOTE: Software for this board is located inside the controlSUITE™ software package. Once installed, navigate to "High Voltage Solar DC/AC Inverter Kit" under the Development Tools -> Solar section.

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDR753.PDF (1115 K)

Detailed schematic diagram for design layout and components

TIDR754.PDF (93 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC474.ZIP (327 K)

Design file that contains information on physical board layer of design PCB

TIDR755.PDF (703 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

C2000 real-time microcontrollers

F28M35H52CC2000™ dual core 32-bit MCU with 250 MIPS, 1024-kb Flash

Data sheet: PDF | HTML
C2000 real-time microcontrollers

F28M35H52C-Q1Automotive C2000™ dual-core 32-bit MCU with 250 MIPS, 1024 KB flash

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28027C2000™ 32-bit MCU with 60 MHz, 64 KB flash

Data sheet: PDF
C2000 real-time microcontrollers

TMS320F28027-Q1Automotive C2000™ 32-bit MCU with 60 MHz, 64 KB flash

Data sheet: PDF

Technical documentation

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View all 3
Type Title Date
Technical article Solar in Texas: the future looks bright Jul. 22, 2016
Technical article Lighting up TI’s solar power delivery and charging solutions Nov. 04, 2014
User guide High Voltage Solar Inverter DC-AC Board EVM Quick Start Guide Sep. 03, 2014

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