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Title: On Grid-Interactive Smart Inverters: Features and Advancements

Journal Article · · IEEE Access

Traditionally, a grid-interactive inverter providing ancillary services is called a smart inverter. However, broader features will be required for the next generation of inverters that can be categorized as self-governing, self-adapting, self-security, and self-healing. For grid-interactive inverters, the self-governing feature can be identified as the capability of inverters to operate in grid-following and grid-forming control modes, where the self-adapting is referred to as more flexibility realized by adaptive controllers for stable dynamics of inverters under various grid conditions. Moreover, for supervisory control and economic dispatch in a grid with high-penetration of inverter-based power generators, a minimum communication might be necessary, but it can place grid-interactive inverters in danger of being hacked when self-security becomes essential to identify malicious setpoints. Furthermore, the self-healing is defined as fault-tolerance and stress reduction under abnormal conditions. It suggests that after realizing these features, an inverter is called a smart inverter. In this paper, the advancements toward achieving these features for grid-interactive inverters are reviewed.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Kansas State Univ., Manhattan, KS (United States)
Sponsoring Organization:
USDOE; USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
Grant/Contract Number:
AC05-00OR22725; EE0008767
OSTI ID:
1811142
Alternate ID(s):
OSTI ID: 1669738; OSTI ID: 1861111; OSTI ID: 1907552
Journal Information:
IEEE Access, Vol. 8, Issue 1; ISSN 2169-3536
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

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Figures / Tables (15)


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