St photovoltaic core board

What components are used in STMicroelectronics?

In fact, both the components used to implement the power, control and communication section belong to the product portfolio offered by STMicroelectronics. The design is based on two power stages, namely, an interleaved isolated boost DC-DC converter and a mixed frequency DC-AC converter.

Can STMicroelectronics NV make changes to this document?

STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale.

What is the main power board used for?

The main power board is a dual-stage converter using DC-DC to adapt voltage levels and impedance from the PV array and a sinusoidal PWM DC-AC to perform grid connection at 230 Vrms and 50 Hz, [see References 3].

How does a photovoltaic system work?

Photovoltaic systems harness solar power and convert it into usable electrical energy. They rest on three major elements: power generation (1), power load (2), and the balance of system or BOS (3). Power generation is the arrays of solar panels where photons knock out free electrons to generate DC electricity.

What are the components of a PV converter?

The converter consists of an input capacitor, C1, six switches, M1 - M6, six freewheeling diodes, two rectifier diodes, D1 and D2, a HF transformer with turns ratio equal to 1.2 and a DC link capacitor C2. The transformer provides voltage isolation between the PV array and the grid, improving overall system safety.

Is a power converter suitable for photovoltaic applications?

For this reason, the power converter, based on a dual-stage topology, has been investigated and experimentally evaluated for photovoltaic applications. The converter performs MPPT and grid connection by means of an ARM Cortex M3-based STM32F103xx microcontroller, which is proven to be well suited for such an application.