Multi-bus microgrid architecture diagram

What is dc microgrid architecture?

DC microgrid architecture with their application, advantage and disadvantage are discussed. The DC microgrid topology is classified into six categories: Radial bus topology, Multi bus topology, Multi terminal bus topology, Ladder bus topology, Ring bus topology and Zonal type bus topology.

How a microgrid is connected to a grid?

Depending upon the mode of operation, an autonomous microgrid is connected to AC loads through AC bus. A microgrid operating in grid-tied mode is connected to main grid through AC bus where local AC loads are also connected . Fig. 2.2 presents the schematic diagram of AC microgrid structure. Figure 2.2. AC microgrid structure.

What is AC microgrid structure?

3.1. AC microgrid In AC microgrid structure, an AC bus is created, and all microsources with variable frequency and variable voltage AC output are connected to AC bus through AC/AC power electronics converter. Sources with DC output are connected to AC bus through DC/AC converter.

What is radial dc microgrid bus?

Depending on the purpose and requirements, the radial DC microgrid bus could be unipolar or bipolar. This configuration is common in residential buildings because majority of the appliances uses low voltage, therefore, low DC bus voltage is preferred while avoiding additional chopper conversion stages.

What are the development possibilities of dc microgrid control structure?

The development possibility of the DC microgrid control structure is flattening, digitalization, and integration. In a DC microgrid, instantaneous DC bus voltage signals contain useful information for the operating states prediction. In the process, the intelligent estimation method can be adopted.

What is a hierarchical control structure of a dc microgrid?

Thus, a hierarchical control structure was proposed to optimize the control of the DC microgrid , which is used for coordinating with multiple control objectives or optimal operation of the DC microgrid in various time-scales. Many scholars have made great efforts on the hierarchical control structure of the DC microgrid.