160 Results for "MPPT"

MPPT working!
Log from Solar Energy Generator
I managed to get my MPPT algorithm up an working this weekend. It was very neat to see the converter searching through the solar panels V-I curve by changing the duty cycle - the algorithm runs slow enough right now that you can watch it happening on...

MPPT Algorithm
Log from 100W MPPT Prototype Charger
Any power supply connected to a source impedance that is variable and often higher than its own must modify its operation to match impedances as closely as possible for maximum efficiency. This design uses duty cycle for impedance matching and...

Mppt and storage problems
Log from Open source Solar system
So i have a larger problem where my Solar Mppt charger won't work with both solar panels if the battery voltage is to low, its only rated for 360w when using a 12v system. So thats why i haven't updated in a bit and have been putting the project on bit...

MPPT Solar Charge Controller works
Log from Solar Charge Controller MPPT Test Facility
I have been working on making an MPPT solar charge controller and it is now at the point where it works. Here is a link to the project:https://hackaday.io/project/10671-arduino-mppt-solar-charge-controller

MPPT scanning algorithm test
Log from Micro generator platform for water and wind energy
Simplest way for me to test different energy conversion functionalities is to build a back-to-back setup. I have coupled two brushless outrunners enclosed in a plexiglass tube for protection. It is not the optimum solution for long term testing, due...

Arduino MPPT History
Log from Arduino MPPT Solar Charge Controller
As far as I know, Tim Nolan started the Arduino-based MPPT solar charge controller design in 2009:Unfortunately, his web site is downhttp://www.timnolan.com/but the content can still be seen athttp://web.archive.org/web/20140626064134/http://www.timnolan.com/index.php?page=arduino-ppt-solar-chargerIn...

MPPT Algorithm work
Log from Solar Energy Generator
I have been working on getting an MPPT algorithm up and running on my current test setup, which currently looks like a complete mess:You can see the converter stage, display, microcontroller, a current and voltage sensor board, and a breadboard with...

Getting Ready for MPPT
Log from Smart Solar Lamp
Introduced low side current sensing to solar panel which works better than I expected. For voltage measurements I have realized pic's analog input pin is leaking a lot more than expected thus resulting lower voltages than it should. It's seems the voltage...

MPPT controller : ESP32 firmware
Log from Low cost solar panel solution (MPPT + sun tracker)
The ESP32 firmware for the charge controller can be found on my Github Account here : ESP32 firmware From this repo, put all the fles into a directory named "JP_eSolarPanel_ESP32" Then open the JP_eSolarPanel_ESP32.ino file. It should launch arduino...

MPPT Controller hardware
Log from Low cost solar panel solution (MPPT + sun tracker)
This cheap device follows this schematics (not sure that it is perfect but enough to understand the mod !) You can control manually the output voltage with the multiturn potentiomer "V Adj". This is producing an offset voltage to the reference 1.21V....

Most efficient MPPT solar charger
Log from MeshPoint - wifi router for humanitarian crisis
In order to make MeshPoint mobile we need two things - batteries to keep it running, and battery management system (to charge the batteries, to keep batteries from under-voltage, to monitor power charging and power consumption and to manage power distribution)....

Overview of MPPT algorithm modelling
Log from ARDUINO MPPT SOLAR CHARGE CONTROLLER
Panel model consists of a simple step-wise linear model of a solar panel.See the above figure.1. Constant Current : up to 18 volts 2. Constant Power : between 18 and 19 volts 3. Power decline linearly to zero : between 19 and 21 volts 4. Zero Current...

7/15/2020 Designed MPPT
Log from solar powered boat
I have designed and built my own working MPPT. A few notable differences:a) free software and hardware design. b) all ceramic capacitors. This slightly increases efficiency as electrolytic capacitors are often a weak link and...

Web-connected MPPT Solar Charge Controller
Log from Arduino MPPT Solar Charge Controller
The most convenient way to communicate with a device on a network is through a web browser. The Raspberry Pi runs a Lighttpd web server which serves the web pages. This leads to the question of device access to the charge controller which is easily solved...

Testing the Hardware MPPT Approach
Log from Hardware MPP Tracking
I finally got a chance to try the hardware MPP approach in a working converter. I used the prototype for my Solar Charger. I had to remove one of the SEPIC cores to make room and hack a few changes into the backplane. The MPP control loop is similar...

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