The photovoltaic modules are the choice of consumers.
With the price of fossil fuels on the rise, companies have the power of fuels such as coal and oil to leave in order to generate most of their electricity had been forced to raise prices, then the homeowners are now opting for ' solar energy to meet their energy needs. Photovoltaic systems are very popular with home owners and apartment, because the energy is free, and recent technological advances have reduced the initial cost of suchSystems.
The batteries require constant charging.
Because of the intermittent nature of solar energy, is not useful devices directly to a photovoltaic panel. Instead, power is through the plates during the hours of sun-charged batteries, where it is stored for use on record upon request. The output of solar panels depends on certain factors such as the position of the solar cells, the time of day and season. All these factors affect the incidence ofSunlight, photovoltaic cells and thus the temperature of the cells. Because these dynamic conditions, variations in the performance of the plates are not conducive to a battery of good health. As a general rule, such as batteries, at a rate that is approximately 20% of their amp hour rating for free. For example, an amplifier 10 would be ideal to calculate a 50 amps hours of battery life. Because the batteries can not fast overload, is a solar charge controller requiredTo ensure the correct charging current is maintained.
What is a solar charge controller and how it works?
A solar charge controller is an electronic circuit, the output voltage and current from solar panels on the needs of the game fits batteries recharged. To charge a battery, charger - or in this case, the solar system - must be uploaded to a potential higher than the battery. In other words, the voltage must be greater than the plateopposite the battery voltage under load to produce a positive flow of current in the battery. But how much more should it be? The current flow is based on Ohm's law: E = I * R, where E is the voltage in volts, I is current in amperes and R is the resistance in ohms is measured. The effective voltage in this circuit, the output voltage of the solar battery voltage less the opposite. We can make a difference in voltagenecessary, our current flow desired by inserting our values lead to the known equation. Assuming a 12 volt battery with 50 Ah capacity, charge current, our goal is to be valued at about 10 amps. There is no resistance in this circuit, with the exception of the internal battery resistance, which is a fraction of the ohms. In this case, we will approach was 0.2 ohms. With Ohm's Law, we multiply 10 amps of 0.2 ohms and get 2 volts as a result. This means that our solar panel must be 2 voltshigher than our battery voltage to obtain our goal to hold a charge. This example shows that the nominal output voltage of the solar panels must be greater than the battery charge controller for solar pay for the job. As mentioned, the current values dynamically, and thus the need for a charge. There are some very sophisticated solar charge controller available today, use the Maximum Power Point Tracking MPPT, or in order to adapt to differentCombinations of battery and the panel as 24V, 36V, 48V, etc. These controllers use DC-DC converter to match the voltage and measure the use of digital circuits for the current parameters many times per second to adjust the power output accordingly.
The charge controller is necessary to correct.
As you can see, is a solar charge controller is an essential part of any PV system. It 'true that a simple charging circuit function can be achieved with fewer parts to buildto save from your local electronics, this option is not recommended for the average person. With so many variables associated with solar energy, is to use a solar charge controller, the ability to monitor all relevant parameters and recommended the optimum cost for the batteries, however. Using a high-quality solar charge controller ensures that you enjoy maximum battery life and the best of your PV system.
