Saturday, August 1, 2009

Solar - Powering the future using Micro-inverters:

A relatively new option for optimizing solar system efficiency is to use a micro-inverter for each individual solar panel, instead of using a single inverter for the entire system. The chief benefit of the micro-inverter topology is that the system will continue to convert energy even when one inverter malfunctions. Each panel having its own micro-inverter has other important benefits as well, including the ability to adjust conversion parameters on each panel using a high resolution PWM (Pulse-Width Modulator).

Clouds, shadows and other environmental conditions can vary the output of individual panels. Equipping each panel with its own micro-inverter allows the system to accommodate its changing load, which provides optimal conversion efficiency for both the individual panels and the entire system.

Micro-inverter architectures also enable simpler wiring, which translates into lower installation costs. Panel and system monitoring is also improved. Large solar panel farms, in particular, require subsystems to communicate with each other to keep loads in balance and plan in advance how much power will be available and what to do with it.


With continual advancement and miniaturization, control systems can be put just about anywhere.


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