Chapter 12

2.4 kW DC Grid-Tied PV System with String Inverter

12.1 Introduction

This laboratory shares a great deal in common with Chapter 11. The use of one string inverter instead of many microinverters has the following consequences:

  • Instead of one PV module per microinverter, we employ strings of photovoltaic (PV) modules wired in series—and possibly several strings together in parallel—and one central inverter.
  • A single monitoring system is employed to track production.
  • Each string needs to be sized; that is, there are minimum and maximum numbers of modules per string depending on ambient temperatures expected at the site and the maximum DC input voltage for the inverter.
  • All strings that are combined together in parallel and then fed ...

Get Photovoltaic Laboratory now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.