Andy Hoke
National Renewable Energy Laboratory
42 Papers
34 Citations
Andy Hoke is an academic researcher from National Renewable Energy Laboratory. The author has contributed to research in topics: Computer science & Electric power system. The author has an hindex of 7, co-authored 17 publications.
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Papers
Open-Source PSCAD Grid-Following and Grid-Forming Inverters and A Benchmark for Zero-Inertia Power System Simulations
Rick Wallace Kenyon,Amirhossein Sajadi,Andy Hoke,Bri-Mathias Hodge +3 more
- 19 Apr 2021
TL;DR: In this paper, the authors present open-source, flexible and easily-scalable models of grid following and grid forming inverters for the PSCAD software platform for system integration studies, particularly transient stability analyses of power systems with a high penetration of inverter-based generation.
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IEEE 1547 Standards advancing grid modernization
Thomas Basso,Sudipta Chakraborty,Andy Hoke,Michael Coddington +3 more
- 14 Jun 2015
TL;DR: The status and future direction of the ongoing development focus for the 1547 standards is provided, which are establishing requirements and best practices for state-of-the-art DER including variable renewable energy sources.
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Setting the Smart Solar Standard: Collaborations Between Hawaiian Electric and the National Renewable Energy Laboratory
Andy Hoke,Julieta Giraldez,Bryan Palmintier,Earle Ifuku,Marc Asano,Reid Ueda,Martha Symko-Davies +6 more
TL;DR: In this article, the authors describe how Hawaiian Electric has worked with engineers in NREL's Power Systems Engineering Center to improve the way its grid operates with very high levels of distributed PVs, largely by changing the way the PV inverters are operated.
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Island Power Systems With High Levels of Inverter-Based Resources: Stability and Reliability Challenges
Andy Hoke,Vahan Gevorgian,Shahil Shah,Przemek Koralewicz,Rick Wallace Kenyon,Benjamin Kroposki +5 more
TL;DR: In this paper, the reliability and stability challenges on short timescales (microseconds to seconds) of variable renewables, such as wind and photovoltaics (PVs), are investigated in an island power system with very high instantaneous levels of wind and PVs.
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Impact of Frequency-Watt Control on the Dynamics of a High DER Penetration Power System
Dinesh Pattabiraman,Jin Tan,Vahan Gevorgian,Andy Hoke,Chris Antonio,Dean Arakawa +5 more
- 01 Aug 2018
TL;DR: This study investigates the dynamics of a power system with a high penetration of distributed PV generation with frequency-watt droop control enabled and the impact of frequency-Watt parameters on the system frequency dynamics is investigated by observing trajectories of small- signal eigenvalues.
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