What direction does mmc energy storage belong to

What is an MMC based energy storage device?

Abstract: The MMC based energy storage device is a type of bi-directional power device. Both the MMC and the energy storage device are key infrastructures in the future medium and high voltage networks. The MMC converter enables the capability of embedding the battery into the sub-module of the MMC distributively.

What is MMC-battery energy storage system (MMC-Bess)?

Modular multilevel converter-battery energy storage system (MMC-BESS) has a good engineering application. When MMC-BESS is connected to the grid, the real-time phase angle of grid is an important parameter. When MMC-BESS is connected to the grid, a simulation model based on virtual synchronous generator (VSG) is built in MATLAB.

Can a Bess be connected to a power grid through MMC?

The energy storage unit could be connected to the submodules (SMs) of MMC with a DC/DC converter or an isolated DC/DC converter [7 – 9]. Furthermore, batteries connected to SMs of MMC directly with the advantage of simple structure, low energy consumption, and so on [10 – 14]. Therefore, the BESS could be connected to the power grid through MMC.

What is a Modular Multilevel Converter (MMC)?

Modular multilevel converter (MMC) has been applied in high voltage and high power applications widely, because of its superior properties over the conventional multilevel converter . Moreover, battery energy storage system (BESS) could provide excellent output performance to grid applications .

Is a battery energy storage system a good choice for grid applications?

Moreover, battery energy storage system (BESS) could provide excellent output performance to grid applications . In recent years, researchers conducted the research on the combination of MMC and BESS because of the advantages of MMC converter and BESS [3, 4]. There are some different topologies studied.

What is the control strategy of MMC-Bess?

The control strategy of MMC–BESS mainly includes DC-bus voltage control, reactive power control, current decoupling control, and SM voltage control. In order to regulate DC-link voltage and reactive power, voltage control and current control schemes are proposed. Based on the topology shown in Fig. 1, the mathematical model is established