Photovoltaic inverter teaching aids

Why do I need a PV inverter?

This is meant to answer the “why’s and how’s” of PV inverters. Since the PV array is a dc source, an inverter is required to convert the dc power to normal ac power that is used in our homes and offices. To save energy they run only when the sun is up and should be located in cool locations away from direct sunlight.

How many experiments are there in solar PV standalone systems?

In second section there are 4 experiments through which user can study about the different components involved in solar pv standalone systems, their interconnection and usage. In third section user can research on maximum power point tracking of the solar panels.

What do students need to know about solar energy installation?

Students are expected to assembly solar energy panel system by connecting the electrical components with proper wiring and connection. Familiarization of solar cell installation procedure and safety. Reading an technical drawing of electrical diagram and cisrcuit.

What are the different types of inverters?

Inverters can be motor-generator (not discussed further here) or (more commonly) electronic types. Vary in utility interaction, power ratings, efficiency and performance. The inverter is the heart of the PV system and is the focus of all utility-interconnection codes and standards.

How many volts does a PV module produce?

Cell: The basic photovoltaic device that is the building block for PV modules. All modules contain cells. Some cells are round or square, while thin film PV modules may have long narrow cells. Cells are too small to do much work. They only produce about 1/2 volt, and we usually need to charge 12 volt batteries or run motors.

What is PV encapsulation?

Encapsulation: The method in which PV cells are protected from the environment, typically laminated between a glass superstrate and EVA substrate. Newer light weight flexible laminates use a polymer superstrate and a thin aluminum or stainless steel substrate. This is the most critical part of the module manufacturing process.