Use of an accelerated testing method to characterize inner front pole cover erosion in a high power Hall thruster

2021 ◽  
Vol 130 (18) ◽  
pp. 183302
Author(s):  
James E. Polk ◽  
Robert Lobbia ◽  
Arthur Barriault ◽  
Pedro Pablo Guerrero Vela
Keyword(s):  
High Power ◽  
Accelerated Testing ◽  
Hall Thruster ◽  
Testing Method

Accelerated testing method to estimate the long‐term hydrostatic strength of semi‐crystalline plastic pipes

2019 ◽  
Vol 60 (5) ◽  
pp. 879-888 ◽  
Author(s):  
Mehrzad Taherzadehboroujeni ◽  
Roozbeh Kalhor ◽  
Gregory B. Fahs ◽  
Robert B. Moore ◽  
Scott W. Case
Keyword(s):  
Accelerated Testing ◽  
Testing Method ◽  
Plastic Pipes

scholarly journals High Power Demonstration of a 100 kW Nested Hall Thruster System

2019 ◽  
Author(s):  
Sarah W. Shark ◽  
Scott J. Hall ◽  
Benjamin Jorns ◽  
Richard R. Hofer ◽  
Dan M. Goebel
Keyword(s):  
High Power ◽  
Hall Thruster

scholarly journals Individual Phase Full-Power Testing Method for High-Power STATCOM

Electronics ◽  
2019 ◽  
Vol 8 (7) ◽  
pp. 754 ◽  
Author(s):  
Qingjun Huang ◽  
Bo Li ◽  
Yanjun Tan ◽  
Xinguo Mao ◽  
Siguo Zhu ◽  
...  
Keyword(s):  
High Power ◽  
High Capacity ◽  
Test System ◽  
Testing Method ◽  
Individual Phase ◽  
Test Platform ◽  
Full Power ◽  
Power Testing ◽  
Two Phases ◽  
Three Phases

For a high-power static synchronous compensator (STATCOM), a full-power pre-operation test in the factory is necessary to ensure the product quality of a newly manufactured one. But owing to the hardware limitation and cost of test platform, such test is currently too difficult to conduct in the factory, thus it poses great risk to the on-site operation and commissioning. To address this issue, this paper proposes an individual phase full-power testing method for STATCOM. By changing the port connection, three-phase STATCOM was reconstructed into a structure that two phases are in parallel and then in series with the third-phase, and then connected to two phases of the rated voltage grid. Then by rationally matching the voltage and current of three phases, the parallel phases can get a reactive current hedging under both the rated voltage and rated current, meanwhile three phases maintain their active power balance. As a result, STATCOM gets a phase full-power tested phase by phase. The simulation results in Matlab/Simulink show that, under the proposed test system, both the voltage and current of the parallel two phases get their rated values while the grid current is only about 3% of the rated current, meanwhile the DC-link voltage of each phase converter is stabilized. Compared with other testing methods for STATCOM, this method requires neither extra hardware nor high-capacity power supply to construct the test platform, but it can simultaneously examine both the entire main circuit and a large part of the control system in STATCOM. Therefore, it provides a cost-effective engineering method for the factory test of high-power STATCOM.

Characterization of a high-power Hall thruster operation in direct-drive

2021 ◽  
Vol 178 ◽  
pp. 392-405
Author(s):  
Maryam Reza ◽  
Farbod Faraji ◽  
Tommaso Andreussi
Keyword(s):  
High Power ◽  
Hall Thruster ◽  
Direct Drive

scholarly journals Development of High-Power Hall Thruster Power Processing Units at NASA GRC

2015 ◽  
Author(s):  
Luis Pinero ◽  
Robert Scheidegger ◽  
Karin Bozak ◽  
Arthur Birchenough
Keyword(s):  
High Power ◽  
Hall Thruster
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