Project Overview:

Situated in Switzerland, Europe, our client sought to develop a sophisticated 600W micro inverter for solar panels, designed for seamless grid integration. The requirement was for a micro inverter that ensured panel and control system protection, adaptable for series or parallel connections.

Solution by Electrobit Technology:

Electrobit Technology delivered a state-of-the-art solution by designing a solar microinverter with a TI DSP microcontroller. This innovation allows for converting DC power from solar panels into a pure AC signal. Our design incorporates a bipolar PWM (Pulse Width Modulation) switching mechanism, ensuring efficient operation. The inverter features comprehensive protection against overvoltage, low solar input, short circuits, and isolation faults, underscoring our expertise in creating high-efficiency solar inverters.

Services Provided:

  • Firmware Development: We crafted sophisticated firmware to manage the inverter’s operations meticulously.
  • Board Bring-Up: Our team ensured the micro inverter’s hardware was correctly initialized and fully operational.
  • Communication Protocols: Developed communication protocols facilitated seamless interaction between the gateway and the inverter.
  • Historical Energy Measurement: This feature enables tracking and analyzing energy production over time.
  • Hardware Designing: From researching boost converters capable of up to 500V for AC signal generation to component selection and schematic design, our hardware designing services were comprehensive.
  • PCB and Layout Designing: We engineered the PCB to meet stringent specifications, including typical dimensions for electronic and mechanical enclosures.
  • Hardware Validation and CE Certification Support: Ensured the board’s hardware met all regulatory requirements for market approval.
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Challenges Overcome:

  • Generating a pure sine wave AC signal from solar DC input.
  • Managing solar panels connected in series, accommodating seasonal and temporal variations.
  • Designing a PCB that fits specific electronic and mechanical enclosure dimensions.
  • Implementing automatic fault detection and safe bypass for any panel to prevent system failures.

Technologies Deployed:

  • Boost converter technology for efficient DC to AC conversion.
  • CAN and RS485 communication protocols for reliable data transmission.
  • Specialized in applications for the automobile and solar power systems industries, showcasing our versatility and technical prowess.

Conclusion:

Electrobit Technology’s innovative approach in developing the 600W micro inverter project has established a new benchmark in solar energy conversion efficiency and reliability. Our comprehensive solution, from hardware design to firmware development and system protection, demonstrates our commitment to delivering cutting-edge technology solutions. This micro inverter represents a significant advancement in solar power systems, offering enhanced performance, protection, and adaptability for grid integration, reflecting Electrobit Technology’s expertise in the renewable energy sector.