Large time-varying inductance load for studying power flow on the machine
Abstract
Interest in studying power flow dynamics has grown in recent years, with new power flow diagnostics being developed at Sandia National Laboratories for the Z Pulsed Power Facility. Presently, the only power flow loads that have been studied are cylindrical static or imploding loads that are driven by synchronous short pulse (100 ns rise time). Presented is a design that utilizes the dynamic materials properties program’s stripline geometry in a high voltage pulsed shaped (asymmetric asynchronous) driving mode. This design has exhibited repeatable current loss with a large time-varying inductance that is well matched to the machine at pulse initialization but which triples to high inductance in 800 ns. Evidence is presented that plasma not captured in the magnetohydrodynamic approximation and ill represented by any of our existing predictive pulsed power codes is adversely affecting load current delivery. The authors believe this design could be of great interest to the experimental and modeling communities for studying power flow dynamics.
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1560295
- Alternate Identifier(s):
- OSTI ID: 1575262
- Report Number(s):
- SAND-2019-4726J
Journal ID: ISSN 2469-9888; PRABCJ; 090401
- Grant/Contract Number:
- NA0003525; AC04-94AL85000
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Accelerators and Beams
- Additional Journal Information:
- Journal Name: Physical Review Accelerators and Beams Journal Volume: 22 Journal Issue: 9; Journal ID: ISSN 2469-9888
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS
Citation Formats
Porwitzky, Andrew, Hutsel, Brian T., Seagle, Christopher T., Ao, Tommy, Grant, Sean, Bernstein, Aaron, Lin, Jung-Fu, and Ditmire, Todd. Large time-varying inductance load for studying power flow on the Z machine. United States: N. p., 2019.
Web. doi:10.1103/PhysRevAccelBeams.22.090401.
Porwitzky, Andrew, Hutsel, Brian T., Seagle, Christopher T., Ao, Tommy, Grant, Sean, Bernstein, Aaron, Lin, Jung-Fu, & Ditmire, Todd. Large time-varying inductance load for studying power flow on the Z machine. United States. https://doi.org/10.1103/PhysRevAccelBeams.22.090401
Porwitzky, Andrew, Hutsel, Brian T., Seagle, Christopher T., Ao, Tommy, Grant, Sean, Bernstein, Aaron, Lin, Jung-Fu, and Ditmire, Todd. Wed .
"Large time-varying inductance load for studying power flow on the Z machine". United States. https://doi.org/10.1103/PhysRevAccelBeams.22.090401.
@article{osti_1560295,
title = {Large time-varying inductance load for studying power flow on the Z machine},
author = {Porwitzky, Andrew and Hutsel, Brian T. and Seagle, Christopher T. and Ao, Tommy and Grant, Sean and Bernstein, Aaron and Lin, Jung-Fu and Ditmire, Todd},
abstractNote = {Interest in studying power flow dynamics has grown in recent years, with new power flow diagnostics being developed at Sandia National Laboratories for the Z Pulsed Power Facility. Presently, the only power flow loads that have been studied are cylindrical static or imploding loads that are driven by synchronous short pulse (100 ns rise time). Presented is a design that utilizes the dynamic materials properties program’s stripline geometry in a high voltage pulsed shaped (asymmetric asynchronous) driving mode. This design has exhibited repeatable current loss with a large time-varying inductance that is well matched to the machine at pulse initialization but which triples to high inductance in 800 ns. Evidence is presented that plasma not captured in the magnetohydrodynamic approximation and ill represented by any of our existing predictive pulsed power codes is adversely affecting load current delivery. The authors believe this design could be of great interest to the experimental and modeling communities for studying power flow dynamics.},
doi = {10.1103/PhysRevAccelBeams.22.090401},
journal = {Physical Review Accelerators and Beams},
number = 9,
volume = 22,
place = {United States},
year = {Wed Sep 04 00:00:00 EDT 2019},
month = {Wed Sep 04 00:00:00 EDT 2019}
}
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https://doi.org/10.1103/PhysRevAccelBeams.22.090401
https://doi.org/10.1103/PhysRevAccelBeams.22.090401
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