IEEE Electrification Magazine - December 2019 - 81

©ISTOCKPHOTO.COM/PETOVARGA

By Ying Wu, Yanpeng Wu, Josep M. Guerrero, Juan C. Vasquez, and Jiao Li

AC Microgrid
Small-Signal
Modeling
OOKING AT TODAY'S ENERGY DEVELOP-
ment, the traditional single-power genera-
tion and transmission phase is gone
forever. We are now in the Internet of Smart
Energy era, which requires clean, intelligent,
efficient, and reliable power. With the large-scale adoption
of renewable sources and Internet of Things technology,
the development of the energy Internet has become irre-
versible. Global new-energy companies are urgently
exploring and actively responding to this trend.

L

Digital Object Identifier 10.1109/MELE.2019.2943980
Date of current version: 2 December 2019

2325-5987/19©2019IEEE

Hierarchical control
structure challenges
and solutions.

The microgrid is regarded as one of the most impor-
tant and effective ways to develop and construct a smart
energy production and transmission network. According
to the U.S. Department of Energy, a microgrid is a small,
discrete, and independent system that integrates distrib-
uted generators, energy-storage devices, energy-replace-
ment equipment, related loads, and monitoring and
protection apparatus into a compact power-distribution
network. It can operate from an external grid and auton-
omously in isolation.
Imarc, Boston, states that the global microgrid market
was worth US$19.3 billion in 2018. The market is forecast
to reach US$36.3 billion by 2024, which would represent
IEEE Elec trific ation Magazine / D EC EM BE R 2 0 1 9

81


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IEEE Electrification Magazine - December 2019

Table of Contents for the Digital Edition of IEEE Electrification Magazine - December 2019

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