What is the difference between normal Inverter and Home UPS Inverter?

An inverter is a current conversion device that can convert direct current to alternating current, or convert alternating current to direct current. Home UPS Inverter is a kind of uninterrupted power supply device. Its principle is battery + inverter. The mains electricity is converted into direct current by the inverter, and the direct current charges the battery. Use electrical appliances directly. There is also the word “stabilizer” mentioned here. 

The stabilizer can keep the unstable mains electricity at a fixed voltage through the voltage stabilizing device, which is very good for the normal use of electrical appliances. In civil use, voltage stabilizers are widely used, such as refrigerators and air conditioners. Many users install high-power voltage stabilizers in the main incoming line so that all electrical appliances are protected. We know that especially after power failure and recovery, the voltage will have an overload peak, and the instantaneous voltage will be too high, which is the reason for the damage of most electrical appliances. 

Normal Inverter and Home UPS Inverter

Importance of Home UPS Inverter

Home UPS Inverter power supply is suitable for electrical appliances such as computers that may cause data loss due to unexpected power failures. Generally, such electrical appliances will start to lose data after a one-second power failure. Home UPS Inverter can be used for protection without indirect power supply, such as servers and mobile Unicom signals. Launch tower and so on. Some less demanding devices will also use some backup power supply systems, such as emergency exits, which have a slower response. Some use backup engines for more than ten seconds to supply power, and some use batteries. 

For example, the power plant’s own power system is equipped with several million worth of backup diesel generator sets, which are warmed up all day long. In the event of an unexpected power failure, the power supply can be restored in more than ten of seconds. But because it is only a current conversion device, the inverter is rarely used alone.

Role of Home UPS Inverter in residential solar 

Direct current generated in photovoltaic cells is not suitable for supplying household appliances, and even more so for transmitting energy to the grid, until it is converted into alternating current with a frequency of 50 Hz and a nominal voltage of 230 V. For this purpose, inverters, often called inverters, are used. On the other hand, in installations not cooperating with the grid (off-grid), batteries and a device to regulate their charging are still needed.

Inverters in a photovoltaic system

Choosing the right inverter is of course the task of the system designer, but if you have to decide whether to buy cheaper or more expensive, it is good to know what the difference is. Those enabling the cooperation of a home generator with the power grid must be of the highest class so that they do not interfere with its operation – the requirements for them are set by power plants. Inverters intended for photovoltaic micro-installations are called string inverters because their input systems are connected to so-called strings of panels connected in series with each other.

When choosing an inverter, you need to pay attention primarily to the maximum permissible voltage. It shows how many panels can be in the chain. In order to connect more panels to the inverter, two or more strings can be connected in parallel, but only on the condition that each of them will have the same number of panels with identical parameters and they will be exposed to the same way.