Solar Micro Inverter Development Kit


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CAUTION: This equipment operates at high voltages and currents which can result in hazardous electrical shock. Please make sure you understand and follow all necessary safety precautions prior to purchasing and operating.

TMDSSOLARUINVKIT  is a DIMM100 controlCARD based motherboard evaluation module which uses Piccolo F28035.  This development kit implements a complete grid-tied solar micro inverter. The Solar Micro Inverter Development Kit introduces designers to a fully-suitable MCU for solar micro inverter applications, and guides users seamlessly through the design process and application challenges. Users can evaluate the design initially through a simple graphical interface without the need to dive into code development. When ready to explore in further depth, detailed theory-based documentation guides users step-by-step through the software and hardware implementation by incrementally building from open loop to closed loop operation of the solar micro inverter.

Hardware Features

  • A complete solar-micro-inverter development platform with Isolated DC-DC and DC-AC power stage.
  • Supports panel voltages of 28 to 45V at input. Hence an active clamp fly-back DC/DC converter with secondary voltage multiplier is implemented on the board to enable greater efficiency. 100kHz switching is used.
  • Universal power output at up to 280W for 220VAC and up to 140W for 110VAC, making it suitable for the diverse requirements of worldwide solar markets. Inverter switches at 50kHz.
  • 93 percent peak efficiency and less than four percent total harmonic distortion (THD) provide more power output per solar panel, reducing detrimental heat dissipation and increasing system longevity.
  • The C2000 Piccolo F28035 MCU serves as a high-performance controller for the complete micro inverter system, executing high-frequency control loops for both the DC/DC and DC/AC power stages.
  • Single MCU system implementation offers design simplicity and reduced system cost.
  • Hardware Files are in controlSUITE at development_kits\TMDSSOLARUINVKIT_v100

Software Features

  • Complete software source code, hardware design files and detailed documentation allow designers to see and understand exactly how the design was implemented, creating the foundation to begin their own unique solar power implementations.
  • Firmware for closed current loop for DC-DC and DC-AC with DC bus voltage regulation loop, along with MPPT from panel is provided.
  • 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 Loops (PLL), perfect for designing customized solar inverter solutions.

Get Started

  • Follow the Quick Start Guide included in the kit
  • Or included in controlSUITE at C:\ti\controlSUITE\development_kits\TMDSSOLARUINVKIT_v

C2000 real-time control MCUs
TMS320F28030 C2000™ 32-bit MCU with 60 MHz, 32 KB Flash TMS320F28031 C2000™ 32-bit MCU with 60 MHz, 64 KB Flash, 2 MSPS ADC TMS320F28032 C2000™ 32-bit MCU with 60 MHz, 64 KB Flash, 4.6 MSPS ADC TMS320F28033 C2000™ 32-bit MCU with 60 MHz, 64 KB Flash, 4.6 MSPS ADC, CLA TMS320F28034 C2000™ 32-bit MCU with 60 MHz, 128 KB Flash TMS320F28035 C2000™ 32-bit MCU with 60 MHz, 128 KB Flash, CLA TMS320F28035-EP C2000™ Enhanced Product 32-bit MCU with 60 MHz, 128 KB Flash, CLA TMS320F28062F C2000™ 32-bit MCU with 90 MHz, FPU, 128 KB Flash, InstaSPIN-FOC TMS320F28068F C2000™ 32-bit MCU with 90 MHz, FPU, VCU, 256 KB Flash, InstaSPIN-FOC TMS320F28069F C2000™ 32-bit MCU with 90 MHz, FPU, VCU, CLA, 256 KB Flash, InstaSPIN-FOC

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Evaluation board

TMDSSOLARUINVKIT – Solar Micro Inverter Development Kit

TI's Standard Terms and Conditions for Evaluation Items apply.

Technical documentation

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Type Title Date
More literature TMDSSOLARUINVKIT EU Declaration of Conformity (DoC) Jan. 02, 2019
Application note Software PLL Design Using C2000 MCUs Single Phase Grid Connected Inverter (Rev. A) Jun. 27, 2017
User guide Digitally Controlled Solar Micro Inverter Using C2000 MCU CCS User's Guide (Rev. B) Jun. 09, 2017
Technical articles Cutting-edge solar micro inverter development, uncovered! May 15, 2014
Application note Software PLL Design Using C2000 MCUs Three Phase Grid Connected Inverter (Rev. A) Nov. 12, 2013
White paper Implementing Arc Detection in Solar Applications Aug. 03, 2012

Related design resources

Hardware development

TMDSCNCD28035ISOPiccolo TMS320F28035 Isolated controlCARD

Software development

CONTROLSUITEcontrolSUITE™ Software Suite: Software and Development Tools for C2000™ Microcontrollers

Reference designs

TIDM-HV-1PH-DCACSingle-Phase Inverter Reference Design With Voltage Source and Grid Connected Modes

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