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AN76496 - PSoC® 5LP - Solar Microinverter Control Design | Cypress Semiconductor

AN76496 - PSoC® 5LP - Solar Microinverter Control Design

Last Updated: 
Dec 14, 2017
Version: 
*B

AN76496 describes a possible approach to a solar microinverter design using PSoC® 5LP. In this application note, you will find some light discussion on what a solar microinverter is and what its defining characteristics are. Most of the discussion centers on how you can use PSoC 5LP to control all aspects of the microinverter.

Note: The power and control hardware described in this application note are not available for sale. Design files for the control card are available in the zip file with this application note.

The application note introduces a DC-to-AC converter design, one that is specifically targeted at converting highly variable energy from a single solar panel into a form that can be injected directly into the power grid that delivers energy to your home. This is referred to in the solar industry as a grid-tied solar Microinverter.

The application note emphasizes the control design and how PSoC 5LP is employed for a chosen power topology. There are numerous topologies in use today and probably many more yet to be discovered that perform inversion in a cost- and energy-efficient way. PSoC 5LP is well equipped to be the central control for almost any current or inverter design yet to be discovered.

Please note that DC-to-AC converter design is a detailed subject rooted in power electronics. However, the fundamentals of power electronics, and the power stage design, fall outside the scope of this application note. In addition, this application note assumes that you are familiar with developing applications using PSoC Creator™ for PSoC 5LP. If you are new to PSoC 5LP, please refer AN77759, Getting Started with PSoC 5LP. If you are new to PSoC Creator, go to www.cypress.com/go/psoccreator for information about the world’s leading development environment for programmable mixed-signal systems.

The video below is a brief overview of the PSoC 5LP based solar microinverter design.

 

use for camtasia screencasts

The following table indicates the PSoC devices, PSoC Creator versions, compilers, and development kits that will work with this application note project:

Project
Device
PSoC Creator
Version
Development Kit
CY8CKIT-xxx
Compiler
Architecture
Silicon
Revision
V2.2 SP1
or higher
V2.1/2.0
001
DVK
030/050
DVK
003/014
FTK
Keil
GCC
RVDS
MDK
AN76496.zip
Prod
YES
NO
No No
NO
N/A
YES
YES
YES

*Refer to Migrating CY8CKIT-001 DVK project to CY8CKIT 030/ 050

Notes:
  1. Click on AN77835 - PSoC® 3 to PSoC 5LP Migration Guide to learn differences between PSoC 3 and PSoC 5LP

Projects associated with this application note can be downloaded from the ‘Related Files’ section below.

The project’s default settings may not be compatible with your device or kit, and you may need to change your project settings. For more information, see: