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 ...
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