Get to know solar cell inverters

Inverter It is another important device in the solar cell system. But even so Inverters are also Inverter It is another important device in the solar cell system. Whether you choose an on-grid solar cell system, an off-grid system, or a hybrid system, an inverter must be installed as well. But even so Inverters are also divided into several types. If you want to know how different types of inverters are, And what solar cell systems can it be used with? You can follow along in this article.

Important functions of the inverter

Inverter installed with solar panels Its duty is to help convert direct current (Dc) from sunlight that hits solar cells into alternating current (Ac) to send to various electrical appliances within the home or building. In order for the inverter to work efficiently, the total wattage of the home appliances should be calculated together. Because it will help you choose the right wattage of the inverter.

Example

• 4 light bulbs, 10 watts each = 4 x 10, which will be 40 watts.
• 1 rice cooker 500 watts = 1 x 500 will get 500 watts.
• 1 fan 100 watts = 1 x 100 will get 100 watts.
• 1 television 120 watts = 1 x 120 will get 120 watts.

Then add up to a total of 40 + 500 +100 +120 = 760 watts. Therefore, the inverter you choose should have a wattage greater than the sum. It should be used as a 1000 watt inverter.

How many types of solar cell inverters are there and how are they different?

There are 3 main types of inverters used with solar cell systems. Each type has differences as follows:

1. On Grid Inverter

It is an inverter that can only be used with on-grid solar cells, suitable for people who want to save on electricity costs and use electricity frequently during the daytime. The advantage of this type of inverter is Can be used together between electricity from photovoltaic cells and electricity from the electricity grid directly, no need to separate electrical loads. In addition, On Grid inverters are further divided into 2 types that people commonly use:

• Micro Grid Inverter

Micro Grid Inverter is also known as Minigrid, which is smaller than other types of inverters. that will be attached to the solar panel Which will install 1 unit per 1 panel to help convert electricity and fully extract electricity from the panel. It can be said that this is a huge advantage because if the efficiency of any one panel is lower, It will not cause other panels to reduce their efficiency as well. But at the same time, it may have a slight disadvantage in that if you install it on the roof, it may be difficult to maintain or repair in the event of a failure.

• String Solar Inverter
  

String Solar Inverter is an on-grid system inverter that is widely used in offices, homes, and industrial factories. It will be connected together with solar panels in series. This inverter is usually installed on the wall next to the house, inside the garage, or in the basement. It is not commonly installed with solar panels, causing maintenance or rasy to repair, no need to climb onto the roof like a Micro Grid Inverter.

2. Off Grid Inverter

This type of inverter is used in off-grid solar PV systems. that will receive direct current from the battery through the charger To serve as a backup of electrical energy for later during the night or during emergencies such as a power outage. by Off Grid inverters that people like to use Divided into another 2 types, that is

• Pure Sine Wave Inverter

Pure Sine Wave Inverter is an inverter that produces a sine wave alternating current waveform that is the same as all home appliances. Especially electrical appliances that have a motor as a component. Because it will make the motor less hot. Works with full efficiency and provides stable power. As a result, the work of electrical appliances in the home works better.

• Modified Sine Wave Inverter

This type of inverter produces an electrical waveform that has the characteristics of a half square wave. The will be flipped back and forth, which is suitable for use with home electrical appliances that have a direct current conversion system, such as TVs, radios, computers. Avoid using them with electrical appliances that are induction motors and medical equipment. Sensitive items such as fans, water pumps, refrigerators, microwaves because they may cause the motor to become hot and loud.

3. Hybrid inverter

Hybrid inverter It is a system that combines both On-grid and Off-grid together. It will be able to use electricity from electric power and from batteries together. There is also a system that automatically controls the use of electricity. If it's morning, the hybrid inverter will collect energy from the sun to help you save electricity.

But if it is during the night or there is an emergency such as no sunlight, power outage, etc., the inverter will use the electrical energy stored from the battery. But if there is not enough electricity in the battery, the system will pull electricity from the electricity grid to use directly. there Giving you electricity 24 hours a day. Most often, this hybrid inverter system is installed in places where electricity is required all the time, such as hospitals, industrial plants. Factory stores products to maintain temperature

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