Power Electronics-Based Technologies for Grid Stabilization: Grid-Forming Inverters, Control of Inverter-Based Resources (IBRs), and Advanced Testing of IBRs

Organizers

Jing Wang, NREL
Andy Hoke, NREL

Abstract

Recently, power inverters with grid-forming capabilities have attracted broad interest because these inverters do not rely on external voltage sources to generate power, which pertains better stability and reliability than traditional grid-following DERs. Thus, research and development work on grid-forming inverter has extensively carried out in academia and industry. In this panel, we will first introduce the grid-forming inverter manufacture, ABB, to present their latest development in grid-forming battery inverters. Then, one researcher from Siemens will present their research work on performance comparison of different grid-forming control strategies. Apart from the grid-forming inverter related topic, power electronics control and hardware-in-the-loop is also covered. A senior researcher from NREL will demonstrate the operation of a transmission system (Maui in Hawaii) at and near 100% IBRs.

The professor from University of Alabama will share his latest research work on investigating many abnormal operations of IBRs and IBR plants and present an eye-opening discovery of the shortcomings of traditional dq control. In the end, the research engineer from NREL will present the advanced testing and validation of grid-connected inverters through power-hardware-in-the-loop simulation from small scale (single inverter) to large scale (100+) inverters. This panel will include power electronics-based technologies for grid stabilization, which will be informative, educational and insightful to learn the state-of-the-art and future directions of power electronics-based resources and systems.

Short Bio of Organizers

Jing Wang is a Senior Research Engineer at the National Renewable Energy Laboratory. Her research focus on microgrid control and simulation, distributed energy resources (DERs) integration, and control of DER inverters. She has expertise in power and controller hardware-in-the-loop (HIL) evaluation of advanced distribution management system (ADMS), distributed energy resource management system (DERMS) and DERs for grid automation and control, and DER integration studies. She leads HIL evaluations for multiple projects that use ADMS testbed, and she is the key personnel at NREL developing ADMS testbed capabilities.

Andy Hoke is a Senior Engineer in the Power Systems Engineering Center at the National Renewable Energy Laboratory (NREL), where he has worked for the past ten years. He received the Ph.D. and M.S. degrees in Electrical, Computer, and Energy Engineering from the University of Colorado, Boulder, in 2016 and 2013, respectively. Dr. Hoke’s expertise is in grid integration of power electronics and inverter-based renewable and distributed energy. His work includes advanced inverter controls design, hardware-in-the-loop testing and model development, and power systems modeling and simulation. He is the Chair of IEEE Standards 1547.1 and P2800.2, which contain the test and verification procedures to ensure DERs and inverter-based resources conform to the grid interconnection requirements of IEEE Standards 1547 and P2800, respectively. He is a registered professional engineer in the State of Colorado.

Speakers and Presentations

1. John Glassmire, Hitachi-ABB power Grids
Development of Grid-forming Inverters for Supporting Robust and Reliable Future Grids

2. Dr. Amit Pandey, Siemens
Performance Comparison of Parallel Grid-Forming Inverters

3. Dr. Andy Hoke, NREL
Operation of a transmission electric power system at and near 100% inverter-based resources

4. Dr. Shuhui Li, University of Alabama
Impacts of Equivalent Dynamic Grid Impedance and Dynamic Inverter P-Q Capability on Reliability and Harmonic Stability of Inverter Based Resources Plant

5. Jing Wang, NREL
Advanced Power-Hardware-in-the-Loop Evaluation of Inverter-based Resources (IBRs)