Three major points of photovoltaic inverters

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Inverters, also known as power regulators or power regulators, are an essential part of photovoltaic systems. Usually, the process of converting direct current energy into alternating current energy is called inversion in physics, and the device that implements the inversion process is called inversion equipment or inverter. The name of the inverter comes from this. The main function of photovoltaic inverters is to convert the direct current generated by solar panels into alternating current for household use.

Inverters are the heart of photovoltaic systems, and all the electricity generated by solar panels must be processed by inverters in order to be output externally. Inverters play an important role in the operation of the entire system. Below, I will introduce why inverters are so magical.

1. Maximum power tracking function ensures maximum output power

The current and voltage of the solar panel change with the radiant intensity of the sun and the temperature of the solar cell module itself, so the output power will also change. In order to maximize the output power, it is necessary to obtain the maximum output power of the panel as much as possible. The MPPT tracking function of the inverter is designed for this characteristic.

MPPT tracking, also known as maximum power point tracking, is estimated to generate 50% more electricity in systems equipped with MPPT tracking compared to systems without MPPT tracking. So, if you want a photovoltaic system to generate more electricity, don't just look at solar panels. The amount of electricity generated by solar panels that can be effectively output ultimately depends on the inverter.

2. Anti standalone operation function to ensure the safety of the power grid

Many people install photovoltaic systems with the mindset of 'even if the power grid goes out, they can still use electricity in their own homes'. Little do they know that when the power grid goes out, their photovoltaic system will also stop working.

The reason for this phenomenon is that currently inverters are generally equipped with anti islanding devices. When the grid voltage is 0, the inverter will stop working. Do you feel trapped when you hear this? Don't worry, let me explain to you that the anti islanding device is a necessary device for all photovoltaic grid connected inverters. The reason for doing so is mainly for the safety of the power grid. Imagine that when the power grid is cut off, the power grid staff have already put on their clothes to repair the circuit, and your photovoltaic system is still continuously uploading power... It is easy to cause safety accidents.

If you really want to be able to use electricity in your own home during a power outage, you can consider installing a photovoltaic off grid system so that the electricity generated by solar panels can be stored and used when users need it.

3. Automatic operation and shutdown based on the output power of the solar panel

After sunrise in the morning, the solar radiant intensity intensity gradually increases, and the output of the solar cell also increases. When the output power required by the inverter is reached, the inverter will automatically start to operate. After entering operation, the inverter constantly monitors the output of the solar cell module. As long as the output power of the solar cell module is greater than the output power required for inverter operation, the inverter will continue to operate; Until sunset, the inverter can operate even on cloudy and rainy days. When the output of the solar cell module decreases and the inverter output approaches 0, the inverter forms a standby state.

The above introduction is only about the basic performance of inverters. Inverters are an important and complex part of photovoltaic systems. A reliable photovoltaic system requires a reliable inverter.