What is a hybrid inverter?

The hybrid inverter is a power device that converts direct current into alternating current. It supports both off-grid inverter and grid-connected inverter functions.

It can convert the direct current generated by photovoltaics into alternating current to power the load, and it can also convert the alternating current of the grid into direct current and store it in the battery for backup.

 How does a hybrid inverter work?

The hybrid inverter consists of three main parts: DC input module, inverter module and control module.

The DC input module is the input end of the hybrid inverter, mainly used to receive DC input from solar panels, wind turbines, etc.

The inverter module is the core part of the hybrid inverter, which is mainly responsible for converting DC power into AC power. In this module, a series of switching elements (transistors or IGBTs) and inductor & capacitor elements are used. By controlling the on and off states of the switching elements, DC power is converted into high-frequency AC power.

The control module is the intelligent part of the hybrid inverter, which is used to monitor and control the working state of the inverter module. In this module, a series of sensors are usually configured to detect parameters such as input current, output current, temperature, etc. in real time. By monitoring and analyzing these parameters, the control module can automatically adjust the working state of the inverter module according to the actual situation to achieve the best power conversion efficiency.

Working principle diagram:

Summary of the advantages and disadvantages of hybrid inverters

 What are the application scenarios and working modes of hybrid inverters?

Currently, hybrid inverters are mainly used in single-family villas, communication base stations, weak-power & without-power areas, data centers and other scenarios.

It has a variety of flexible working modes, mainly divided into on-grid mode, off-grid mode and backup power mode.

 On-grid mode: the electricity generated by PV is fully utilized to supply power to the load and charge the battery. When the power generation by PV is insufficient, the hybrid inverter draws power from the grid to supply power to the load and charge the battery at the same time. During peak electricity price periods, the hybrid inverter converts the power stored in the battery into direct current to supply power to the load, and feeds the excess power to the grid to earn electricity price benefits.

 Off-grid mode: The hybrid inverter can operate completely independently of the external power grid, forming an independent microgrid power supply system with PV and batteries. The PV components generate direct current, and the hybrid inverter converts the direct current into AC power that meets the requirements to power the load, and the excess power is stored in the battery. The battery supplements when the PV energy is insufficient during the day, and the battery supplies power at night or on cloudy days.

Backup mode: When the grid is powered, the grid charges the battery and the battery remains fully charged. When the grid is powered off, the battery and solar panels simultaneously supply power to household loads.

 Megarevo's R3KL1-R6KL1 single-phase hybrid inverter has outstanding performance and rich success cases in efficient energy conversion. It not only supports on-grid and off-grid AC coupling functions, but also supports three-phase and multi-machine parallel functions. In terms of customer experience, it also supports BMS remote upgrade management functions to simplify customer operation as much as possible. If you want to know more product details, please leave a message to contact us.