Function and function of solar panel controller, solar energy is a very good energy source at present, so it is used in various industries, and solar panel controller is also common to us, so let's share the function and function of solar panel controller with you.
Function and function of solar panel controller 1 function
The basic function of the solar charge-discharge controller is to control the battery voltage, open the circuit, and stop charging the battery when the battery voltage rises to a certain level. The old controller mechanically turns on or off the control circuit, and stops or starts the power delivered by the power supply to the battery.
In most photovoltaic systems, the controller is used to protect the battery from overcharge or overdischarge. Overcharging may evaporate the electrolyte in the battery, leading to failure, while overdischarge may lead to premature failure of the battery. Overcharging and overdischarge may damage the load. Therefore, the controller is one of the core components of photovoltaic power generation system and the main part of system balance.
Simply put, the role of solar controller can be divided into:
1, power adjustment function;
2. Communication function: 1 simple indication function 2 protocol communication functions such as RS485 Ethernet, wireless and other forms of background management;
3. Perfect protection functions: reverse electrical protection, short circuit, overcurrent, etc.
principle
Solar panels are photovoltaic devices (mainly made of semiconductor materials), which generate electricity through photoelectric effect after being irradiated by light. Due to the nature and limitation of materials and light, the generated current is also a fluctuating curve. If the generated current is directly charged into the battery or directly supplied to the load, it is easy to damage the battery and the load and seriously reduce its life.
Therefore, we should first send the current to the solar controller, digitally adjust it with a series of special chip circuits, and add multi-level charge and discharge protection. At the same time, our company's unique control technology "adaptive three-stage charging mode" is adopted to ensure the safe operation and service life of batteries and loads.
When supplying power to the load, the current of the battery flows into the solar controller first, and then the current is sent to the load after adjustment. The purpose of this is: first, to stabilize the discharge current; The second is to ensure that the battery will not be overdischarged; Third, a series of monitoring and protection can be carried out for the load and the storage battery.
If you want to use AC electrical equipment, you need to add an inverter before the load to convert it into AC.
function
The new solar energy controller has the following main functions:
1. Overcharge protection: When the charging voltage is higher than the protection voltage, the battery will automatically shut down and charge. After that, when the voltage drops to the maintenance voltage, the battery will enter the floating state, and when it is lower than the recovery voltage, the floating charge will be closed and enter the fully charged state.
2. Overdischarge protection: When the battery voltage is lower than the protection voltage, the controller automatically turns off the output to protect the battery from damage; When the battery is recharged, it can automatically restore power supply.
3. Load overcurrent and short circuit protection: After the load current exceeds 10A or the load is short-circuited, the fuse is blown and can be used continuously after replacement.
4. Overvoltage protection: When the voltage is too high, the output will be automatically turned off to protect the electrical appliance from damage.
5. Anti-reverse charging function: Schottky diode is used to prevent the battery from charging the solar cell.
6. Lightning protection function: When lightning strikes, the rheostat can prevent lightning strikes and protect the controller from damage.
Matters needing attention
Open the package and fix it in a proper position (please avoid direct sunlight and damp places).
In order to use safely, don't overload or add too many solar panels; Use power supply such as power supply machine instead of solar battery to charge the battery.
Function and function of solar panel controller 2 What is the function of solar street lamp controller?
We all know that solar street lamps should be equipped with controllers, but I believe many people don't know why solar street lamps must be equipped with controllers. Is it ok to not install controllers? In fact, solar street lamps can't be equipped with controllers, because controllers can play a great role. Let's look at the following three reasons:
1, voltage stabilizing effect
When solar energy shines on the solar panel, the solar panel will charge the battery, and its voltage is very unstable at this time. If you charge the battery directly, it may reduce the service life of the battery and even cause damage to the battery.
The controller has the function of stabilizing voltage, which can limit the voltage input to the battery to a constant voltage and current. The battery is fully charged and can be charged with a small amount of current or not.
2. Booster effect
The controller of the solar street lamp also has a boost function, that is, when the controller cannot detect the voltage output, the controller of the solar street lamp controls the output voltage from the output terminal. If the voltage of the battery is 24V, but it needs 36V to light normally, the controller will boost the voltage to make the battery reach the lighting level. This function can only be realized by solar street lamp controller.
3. Control function
Of course, the basic function of solar street lamp controller is control. When the solar panel irradiates solar energy, the solar panel will charge the battery. At this time, the controller will automatically detect the charging voltage and output the voltage to the led lamp to make the led street lamp glow.
After reading the above three reasons, I believe you already know the function of solar street lamp controller. Solar street lamps must need controllers. Without the controller, it is impossible. When choosing the controller, we should also find a qualified manufacturer, so as to ensure the quality of the solar street lamp controller.
Function and function of solar panel controller. The components of solar power generation system are composed of solar panels, solar controllers and storage batteries. Solar cells convert sunlight into power supply, and the solar controller controls the normal operation (charge and discharge) of the solar power generation system, and the storage battery is the energy storage power supply. Solar controller is the core of solar power generation system.
Solar controller is a device for controlling management and intelligent charging and discharging. The element is designed with MOS tube. Its excellent performance can make the solar controller run at high speed, generate less heat and double the effect. The electric energy converted by solar panels is stored in the battery with maximum efficiency through PWM three-stage charging.
One: The core function of the solar controller is to protect the storage battery in the solar power generation system. One is to prevent the battery from being overcharged, resulting in damage or explosion, and the other is to prevent the battery from being overcharged, resulting in damage or failure and being unable to be used again.
Secondly, due to the different environment and region, the working temperature of solar controller is also different. Where the temperature difference is large, the solar controller should also have the function of temperature compensation.
Three: Other additional functions, such as light-controlled switch and time-controlled switch, are all solar controllers and should be optional.