Views: 23 Author: Site Editor Publish Time: 2023-06-13 Origin: Site
A pure sine wave inverter provides many benefits over a standard inverter. The main benefit is that it produces clean, reliable power. This is especially important if you are running sensitive electronics or equipment that is susceptible to power surges. Additionally, pure sine wave inverters are typically more efficient than standard inverters, meaning they use less energy and produce less heat.
How does a pure sine wave inverter differ from a modified sine wave inverter?
What is the working principle of pure sine wave inverter?
What is the future development trend of pure sine wave inverter?
A pure sine wave inverter produces a clean, sinusoidal AC waveform, while a modified sine wave inverter produces a rough, blocky waveform. The two types of inverters are not interchangeable - pure sine wave inverters are typically more expensive than modified sine wave inverters, but they are also much more efficient and produce less electrical noise.
The pure sine wave inverter controls the turn-on and turn-off of the semiconductor switching device, so that the output terminal can get a series of pulses with equal amplitude and unequal width! To obtain the required waveform equivalently, when performing pulse width modulation !If the duty ratio of the pulse series is arranged according to the sinusoidal law, the output voltage can be filtered to obtain a sinusoidal waveform, and at the same time the harmonic components in the load current are greatly reduced, which is called sinusoidal pulse width modulation.
With the rapid development of power electronics technology and the improvement of inverter control performance requirements in various industries, sine wave inverters have also been developed rapidly. At present, the development directions of inverters are mainly as follows:
High frequency refers to increasing the operating frequency of power switching devices, which not only reduces the volume of the entire system, but also has a good suppression of audio noise, and at the same time improves the dynamic response capability of the inverter output voltage. The high-frequency power switching device corresponds to the high-frequency isolation transformer, and the application of the high-frequency isolation transformer further reduces the volume of the entire system.
The effective value is the main parameter of the output voltage of the inverter. The effective value of the output voltage of the high-performance inverter is stable, and at the same time, it has high waveform quality and strong ability to adapt to nonlinear loads. Since the load carried by the inverter often changes suddenly, a high-performance inverter requires a higher transient response performance of the output voltage. Another important parameter for the AC output voltage is the frequency. A good inverter requires not only a stable output voltage effective value, but also a stable frequency. Inverters with the above characteristics can be called high-performance inverters.
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