Energy Storage Battery System Solutions

Why Recommend Pure Sine Wave Solar Inverter?

Jan 26, 2024

Many of our customers ask us if our inverters are pure sine wave when they buy inverters, and they make a point of that they need pure sine wave inverters.It is well known that there are pure sine wave and modified sine wave for solar inverters.

But do you know what the difference is between them?


1.Different output waveform


Pure sine wave inverters adopt PWM mode for inversion, and some even incorporate multi-step inversion.The output waveform of pure sine wave inverters is consistent with the AC waveform of mains power grid, presenting a smooth sine waveform. This waveform is more user-friendly for the operation of electrical equipment, which can extend the service life of the equipment and reduce the failure rate.

Modified sine wave inverters use square wave inversion, with a few incorporating multi-step inversion. This waveform can cause certain interference to the normal operation of electrical equipment, especially for some devices that require high current waveforms (such as sound machine, televisions, etc.).


Why Recommend Pure Sine Wave Solar Inverter?

2.Gap in output efficiency


Pure sine wave inverters adopt advanced power electronics technology, which has high conversion efficiency and stability. However, due to its high technical complexity and manufacturing costs, they are sold at a higher price.

In contrast, modified sine wave inverters have mature technology and lower manufacturing costs, resulting in a lower selling price. However, due to the limitations of its output waveform, its conversion efficiency and stability may be slightly lower than pure sine wave inverters.


solar inverters applications

3.Differences in applicability


Since the output waveform of pure sine wave inverters is closer to the AC waveform of mains grid, it is suitable for various electrical equipment, especially for some devices with higher requirements on current waveform. In addition, pure sine wave inverters are a better choice for applications that require stable operation for a long period of time or require high power quality (e.g. household appliances, hospitals, computer data centers, etc.).

Modified sine wave inverters are suitable for situations where there is not a high demand for power quality, such as outdoor camping, temporary electricity use, etc. In addition, in some simple power systems, a modified sine wave inverter can also be used as a backup power source.

For the sake of customer’s home equipment and maintenance costs, Zlinkwds inverters are all pure sine wave,one piece is also at wholesale price.Friends from all over the world are welcomed to consult at any time!

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