What Is an Inverter Used for?

The inverter converts DC power into AC power (generally 220v50HZ sine or square surge). In nonprofessional's terms, an inverter is a device that converts direct current (DC) into interspersing current (AC). It consists of an inverter ground, a control sense, and a sludge circuit. Next, let's take a look at what the inverter is used for.

Here is the content list:

• How does inverter work?

• What is the function of an inverter?

How does inverter work?

The inverter is a DC-to-AC transformer, which is a voltage inversion process with the converter. The inverter converter converts the AC voltage of the grid into a stable 12V DC output. And the inverter converts the 12V DC voltage output by the Adapter into high-frequency high-voltage AC. Both parts also use the more widely used pulse width modulation. The core part is a PWM integrated controller, the Adapter uses the UC3842, and the inverter uses the TL5001 chip. The working voltage range of TL5001 is 3.6~40V, and it is equipped with an error amplifier, a regulator, an oscillator, a PWM generator with dead zone control, a low-voltage protection circuit, and a short-circuit protection circuit.

What is the function of an inverter?

Inverter not only has the function of DC- AC conversion but also has the function of maximizing the function of solar cells and the function of system failure protection. In summary, there's an automatic operation and arrestment function, maximum power shadowing control function, anti-independent operation function (for the grid-connected system), automatic voltage adaptation function (for the grid-connected system), DC discovery function (for the grid-connected system), DC grounding discovery Function (for the grid-connected system). Then a brief preface to the automatic operation and arrestment functions and the maximum power shadowing control function.

First, the function of automatic operation and arrestment after daylight in the morning, the intensity of solar radiation gradationally increases, and the affair of the solar cell also increase. When the affair power needed by the inverter task is reached, the inverter starts to operate automatically. After entering the operation, the inverter will cover the affair of the solar cell module all the time. As long as the affair power of the solar cell module is lesser than the affair power needed by the inverter task, the inverter will continue to operate; until the evening stops, and the inverter can operate indeed on stormy days. When the affair of the solar cell module becomes lower and the affair of the inverter is close to 0, the inverter forms a standby state.

Second, the maximum power shade control serves the solar cell module as a function of the solar radiation intensity and the temperature of the solar cell module itself (chip temperature). In addition, because the solar cell module has the characteristic that the voltage decreases with the increase of the current, there's an optimal task point where the maximum power can be attained. The intensity of solar radiation is changing, as is the apparent optimal charge point. Regarding these changes, the task point of the solar cell module is always at the maximum power point, and the system has always attained the maximum power affair from the solar cell module. This control is the maximum power shadowing control. The biggest point of the inverter for solar power systems is that it includes the function of maximum power point shadowing (MPPT).

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