What are microgrids and distributed energy resources?

Microgrids and distributed energy resources (DER) are becoming a popular, cost-effective alternative to traditional transmission and distribution investments. Microgrids are small-scale electricity systems that can operate connected to the traditional grid or independently, while DER refers to various types of energy generation and storage systems that can be distributed throughout the grid. With more energy organizations modernizing grid infrastructure, the role and importance of microgrids and DER are explored in this edition of Five in 5.

What are microgrids and their control?

This document summarizes a PhD seminar presentation on microgrids and their control. It defines a microgrid as a group of distributed energy resources and loads that can disconnect from the traditional grid to operate autonomously. It describes the basic architecture of microgrids including sources, storage, loads, and power electronics.

How much power can a dc microgrid produce?

In this case, the total load of the DC microgrid is composed of resistive and constant power load to test the maximum power output of 10 kW at the off-connected mode. Fig. 12 (a) shows the DC bus voltage variation with output fluctuations of new energy generations.

What is a microgrid and its key components and operating modes?

This document outlines what a microgrid is and its key components and operating modes. A microgrid is defined as an electrical distribution system containing controllable loads and distributed energy resources that can operate in a coordinated manner while connected to the central grid or independently.

Can microgrids provide reactive power for distribution system voltage support?

Microgrids, through their power electronic interfaces (PEIs), are fully equipped to supply reactive powers for distribution system voltage support. These PEIs can be configured to provide the necessary reactive power for ancillary services.

How does the microSource supply controlled power to the microgrid bus?

The microsource regulates the power supplied to the microgrid bus (Bus-2) by controlling the phase angle d between the voltage of the microsource (VÐd1) and the voltage at the microgrid bus (EÐd2). The active power flow (P) is controlled by adjusting this phase angle, while reactive power (Q) is controlled by adjusting the voltage.