Maximum power point tracking is a technique that grid connected inverters, solar battery chargers and similar devices use to get the maximum possible power from one or more photovoltaic devices, typically solar panels, though optical power transmission systems can benefit from similar technology.
Questions tagged [mppt]
187 questions
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MPPT Buck converter query
I am looking at prototyping a buck based MPPT solar cell system but am mainly confused by how the solar cell I-V characteristics are manipulated by the buck converter to give the optimum power to the load. I believe it is essentially an impedance…
Hart22
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MPPT Solar Panel Schematic
I've been looking at a few MPPT schematics, and I'm confused about the operation. The point of MPPT tracking is to extract the maximum amount of power from the solar panel, which means controlling the amount of current coming from the panel. These…
BeB00
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vehicle dynamo with MPPT solar controller
I have a 1930's car with a Lucas dynamo. Originally it was a 6 volt system but now 12v. This is done without modifying the dynamo. Unloaded, the dynamo voltage can rise to over 20 volts and of course the working voltage is directly related to RPM.…
Roger Jelbert
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freechargeontroller.org. Half Bridge Driver
I built a full prototype per the plans available. Yes it seems power is getting to the low side. I wired on ammeter to the low side. I'm running my special power supply on the high side so that i can keep the current down to a level readable by my…
Eae
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MPPT for a load whose operating voltage is nearly equal to the solar panel's open circuit voltage
Is it possible to implement MPPT for a load whose operating voltage is nearly equal to the solar panel's open circuit voltage.
edit: Is it possible with buck converter alone?
karthik Jay
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freechargecontroller.org LO side
I wired one up. It's the low side assembly for:
I'm using a small cheap coil for my breadboard. I have been told already about the resistor 470K Ohm between the gate and source. I made sure that its there. It's color codes I looked up. When I…
Eae
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Bootstrap Gate Drive
I did try to set this up in Mouser Blue Edition. Apparently vb and vs become connected at some point so the bootstrap capacitor can discharge itself. I haven't been able to see that happen in my simulator yet Mouser Blue encounters an unrecoverable…
Eae
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freechragecontroller.org. Current is flowing even though M3's gate is not powered?
I'm using a visualization software in which I created an animated schematic for a part of the free charge controller:
http://everycircuit.com/circuit/4838391810097152
The entire schematic is here: http://1drv.ms/1AiMICL (or here)
Hopefully I have…
Eae
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freechargecontroller.org schematic diagram. Power Assembly
I'm attaching a link to the schematic diagram for the Free Charge Controller (http://freechargecontroller.org/images/a/ab/Charge_controller_4_04b.pdf). I have built a prototype power assembly and I have verified that the square wave is coming out of…
Eae
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