Solar Charge Controllers

[VoltsAndBolts]

Solar charge controllers are used in battery based photovoltaic / solar electric systems. Charge controllers protect the batteries from overcharge and/or excessive discharge. The minimum function of the charge controllers is to disconnect the solar electric array when the battery is fully discharged and to keep the battery fully charged without damage.



The basic criteria for selecting a charge controller includes the operating voltage and the PV or solar array current. Charge controllers are critical components in stand-alone PV systems because a controller failure can damage the batteries. The controller must be sized to handle the maximum current produced by the PV array. There are two types of charge controllers: Series and Shunt. Series charge controllers stop the flow of current by opening the circuit between the battery and the PV array. Shunt charge controllers divert the PV array / solar array current from the battery.

Both types use solid state battery voltage measurement devices and shunt controllers are 100% solid state.

Note: These controllers can be used with wind and hydro systems as well.

[denishroyee]

Hi..
I have read your article and the information which you share regarding the Power changer Solar system Control... Its being so good and useful....
Thanks

[peter]

I think solar charge controller uses PWM charging technology, so that as the battery reaches full charge, the PWM pulses slower, gradually tapering off the charge. Pulsing is good for the batteries since it gently mixes the electrolyte, preventing stratification and sulphation. Low voltage disconnect protects the batteries from severe discharge by shutting off loads before the battery voltage drops to damaging levels.

[rogerjack]

These is really nice information on solar technology charger controllers there are so many techniques for reaches the battery in a full charge. These all controllers are use for the hydro and wind system these is really good to share with us.

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