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Classification of On Grid Hybrid Solar Inverters
October 25, 2022We know that there are many types of On-Grid Hybrid Solar Inverters, mainly according to the nature of the wave string and according to the different types of power sources. Next, let us see how On Grid Hybrid Solar Inverters are classified into categories.
String nature
According to the power supply
String nature
There are two main categories, one is a sine wave On Grid Hybrid Solar Inverter, and the other is a square wave On Grid Hybrid Solar Inverter. The output of the sine wave grid-connected hybrid inverter is the same or better sine wave AC power as the grid we use daily because it does not have electromagnetic pollution in the grid. The output of the square wave On Grid Hybrid Solar Inverter is a poor square wave alternating current, and its positive maximum value to negative maximum value is generated almost at the same time. In this way, the load and On Grid Hybrid Solar Inverter are inverted. The device itself causes severe instability. At the same time, its load capacity is poor, only 40-60% of the rated load, and it cannot carry the inductive load. If the load is too large, the third harmonic component contained in the current of the square wave On Grid Hybrid Solar Inverter will increase the capacitive current flowing into the load, and in severe cases, it will damage the power filter capacitor of the load. In response to the above shortcomings, a quasi-sine wave (or improved sine wave, modified sine wave, analog sine wave, etc.) On-Grid Hybrid Solar Inverter has appeared, and its output waveform varies from a positive maximum to a negative maximum. One time interval, the use effect is improved, but the waveform of the quasi-sine wave is still composed of the polyline, which belongs to the category of a square wave, and the continuity is not good.
All in all, the sine wave On Grid Hybrid Solar Inverter provides a high-quality alternating current, which can drive any kind of load, but the technical requirements and cost are high. The quasi-sine wave On Grid Hybrid Solar Inverter can meet most of our electricity needs, with high efficiency, low noise, and moderate price, so it has become the mainstream product in the market. The square wave On Grid Hybrid Solar Inverter is made using a simple multivibrator. Its technology is at the level of the 1950s and will gradually withdraw from the market.
According to the power supply
Inverters are divided into grid-connected coal-fired hybrid inverters, grid-connected solar inverters, wind-power grid-connected hybrid inverters, and nuclear power inverters according to different power sources. According to different purposes, it can be divided into independent control inverters and grid-connected inverters. However, On-Grid Hybrid Solar Inverters are used more frequently.
In addition to power and waveform, the efficiency of choosing an On-Grid Hybrid Solar Inverter is also very important. The higher the efficiency, the less power is wasted on the On Grid Hybrid Solar Inverter and the more power used for electrical appliances. Especially when you use a low-power system, the importance of this is more obvious.