What is the function of on grid inverter?

The on grid inverter is the core of the inverter device, and it is also an inverter switching circuit. The circuit composed of the on grid inverter is suitable for completing the function of inverter through the turn-on and turn-off of the power electronic switch.

• What do we need to know about using on grid inverters?

• What is the difference in control between a photovoltaic on grid inverter and an independent inverter?

• What is the difference between a photovoltaic on grid inverter and a microgrid inverter?

• What is the development trend of on grid inverters?

  
  

What do we need to know about using on grid inverters?

1. Use on grid inverters to comply with electrostatic protection regulations and wear anti-static wristbands.

2. Pay attention to and observe the warning signs on the product when using the on grid inverter.

3. Preliminarily visually inspect the equipment for damage or other dangerous conditions before operating the on grid inverter.

4. Pay attention to the hot surface of the on grid inverter. For example, radiators of power semiconductors, etc., maintain a relatively high temperature for some time after the inverter is powered off.

What is the difference in control between a photovoltaic on grid inverter and an independent inverter?

1. The control of the output voltage, phase-amplitude and frequency of the independent inverter is initially set. Independent inverter, you should refer to the off-grid inverter, without considering the grid situation.

2. Photovoltaic on grid inverter Before on grid inverter, the phase frequency of the grid voltage needs to be judged. After phase-locking, the grid-connected power generation will be connected to the grid.

What is the difference between a photovoltaic on grid inverter and a microgrid inverter?

The hardware structure is not much different. Mainly in terms of control, photovoltaic on grid inverters need to consider the safety of the connection with the grid, such as the need to be in the same phase, and the ability to resist special circumstances such as islanding. Can not cause pollution to the power grid, such as harmonic problems.

What is the development trend of on grid inverters?

For solar on grid inverters, improving the conversion efficiency of power is an eternal topic, but when the efficiency of the system is getting higher and higher, almost close to 100%, further efficiency improvement will be accompanied by lower cost performance. Therefore, how to maintain A very high efficiency, while maintaining good price competitiveness will be an important topic at present.

Compared to efforts to improve the efficiency of on-grid inverters, the efficiency increase of the entire inverter system is gradually becoming another important topic for solar systems. If a partial shade of 2~3% of the surface appears in a solar system, a networked inverter with MPPT function will even result in a power loss of approximately 20% with poor system output. To better adapt to such situations, it is very effective to use one-to-one MPPT or several MPPT control functions for single or partial solar modules.

In general, the development of inverter technology is developed with the development of power electronics technology, microelectronic technology and modern control theory. For more information about on grid inverter, please connect Shenzhen Sumry Electronics Co., Ltd.