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The evolution of advanced inverter-based resources (IBR) is closely coupled with the growth of their applications in electric power networks. Most applications of inverters during this transition were grid-following (GFL) inverters. As IBRs gradually displaced rotating synchronous generators in electric power grid applications, issues such as the behavior of low-inertia grids, local needs for voltage support, and ride-though requirements led to the first interconnection requirements. The initial DER standard, IEEE Std 1547-2003, had to be adapted to the new context and led to the revised standard, IEEE Std 1547–2018 and later the IEEE Std 2800–2022 for transmission IBR systems. In this article, the various inverter operating modes and functions of modern inverters are described. A focus on the comparison of GFL and grid-forming (GFM) inverters based on a more comprehensive white paper developed by the SCC-21 Task Force on Advanced Inverters supporting industry standards is needed in the next few years to reduce system-wide IBR events on the electric system.

Featured Articles

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  A Survey on Impedance-Based Dynamics Analysis Method for Inverter-Based Resources
  Impedance-based method has been increasingly adopted to assess the stability of inverter-based resources (IBRs). To get a better view of the state-of-the-art and challenges for implementing the impedance-based dynamic analysis, a survey with general/specific questions has been initiated by IEEE Task Force on Frequency-Domain Modeling and Dynamic Analysis of High-Voltage Direct Current (HVDC) and Flexible […]
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  Wireless Inductive Charging of Battery Electric Vehicles Is Coming
  In this article, we present an overview and latest BRUSA Elektronik AG [1] achievements related to the inductive charging system (ICS). Moreover, our aim is to raise awareness of BRUSA contributions to ICS, both in the academic world, as well the industry. Recently, it was uncovered that our efforts were not recognized in recent review […]
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  Recent Advances in Capacitors Used in Wide Bandgap Power Circuitry
  Advances in wide bandgap (WBG) semiconductor technologies and the active devices they enable, including power diodes and transistors, have directly contributed to recent improvements in power conversion efficiency, and given today’s power circuit and grid demands, these efficiency gains are more important than ever. For more about this article see link below. https://ieeexplore.ieee.org/document/10262031 For the […]
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  Addressing Power Decoupling in High-Performance, High-Frequency Applications Using E-CAP
  As one of the most basic and fundamental components in electronics, capacitors are used in large numbers across a variety of designs. A key requirement for applications such as mobile phones, IoT devices, and high-performance compute applications is to effectively address last mile power delivery challenges, such as high-frequency power demands for the high-performance processors […]
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  Unveiling the Microworld Inside Magnetic Materials via Circuit Models
  The progress made in wide bandgap (WBG) semiconductors has resulted in rapid miniaturization and increased efficiency of power converters. However, the improvements in magnetic components, such as inductors and transformers, have not kept pace with these advancements [1] , [2] , [3] . Although advances in WBG devices, novel topologies, control schemes, and hardware fabrications […]
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  From “Power Electronics Inside” to “Human-Centered Power Electronics”
  An early mantra of our field was “power electronics inside,” a take on a popular tagline from a major electronics company. Power electronics continues to be an infrastructure and internal technology—throughout the grid, integral to our computers and devices, essential in motor drives, embedded in our cars and appliances, actively managing renewable energy systems, and […]
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  Future Directions of Commercially Available Supercapacitors
  Energy storage devices (ESDs) have become an essential component in renewable energy systems for higher reliability, given the fluctuating nature of renewable energy sources such as solar, wind, and biomass. Thus, various types of ESDs have been invented over the past years, and rechargeable batteries play an increasingly vital role in storing energy in response […]