PVmicroinverter

What is PhotoVoltaic microinverter

• A DC-AC inverter in the power-range of 250W

• Connected: one per panel

• PV = PhotoVoltaic
• Synchronized to Frequency, Phase, Amplitude, of the Grid.

This way they can be connected in Parallel without connection between them and be

De-centralized

• Presentation June2011: ST products and solutions for solar energy goto page 26

Why

• Get the technology to synchronize parallel inverters
• Use STM32 on inverters
• Minimize BOM cost for small inverter
• Small design

Status

Technology Evaluation

Data

STM32F103ZE is used in all new STM SOLAR and INVERTER reference designs

Links

• Chinese product with good description involar MA250
  
  

• Microchip application note AN1338 Grid-Connected Solar Microinverter Reference Design Using a dsPIC® Digital Signal Controller
  
• Microchip web seminar Grid-Connected Solar Microinverter Reference Design
  
• Microchip Grid-Connected Solar Micro Inverter Reference Design page with downloads
  
  

• EDN article Microinverters and power optimizers: Power conversion migrates down to the PV panel
  
  

• National SolarMagic