Photovoltaic Microinverter - Grid Connected
The microinverter-based architecture is composed of two main functional blocks connected as shown in the picture.
- The microinverter implements, at panel level, the power conversion stages (DC-DC with MPPT and DC-AC), the communication capability and the connection to the AC grid. In this way, each panel is connected in parallel directly to the AC grid.
- The data concentrator collects the data (voltage value, current value, etc.) from all the microinverters and sends it to a local or remote monitoring and control access point.
This architecture has the following benefits:
- more energy production: the MPPT at panel level maximizes system energy production
- communication and monitoring capabilities at panel level
- more flexibility: the installed capacity can be expanded over the time
- the best reliability: the failure of one microinverter does not compromise system energy production
The block diagram will help you make the right choice for each functional block from a wide range of recommended products.
Design Support
TopTechnical Documentation
Application Notes
| Description | Version | Size |
|---|---|---|
AN3392: Designing with the SPV1020, an interleaved boost converter with MPPT algorithm
|
1.0 | 5,700 KB |
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AN4068: ST7580 power line communication system-on-chip design guide
|
2.0 | 6,023 KB |
Presentations & Training Material
Presentations
| Description | Version | Size |
|---|---|---|
|
Microinverter_marketing_pres
|
1.1 | 639 KB |
|
ST products and solutions for solar energy
|
1.0.0 | 2,135 KB |
Publications and Collaterals
Brochure
| Description | Version | Size |
|---|---|---|
|
Products and solutions for solar energy
|
1.0.0 | 1,318 KB |
