Measurement of High Frequency Impedance Characteristics for Induction Machine at Zero Stator Frequency by using FPGA

2021 ◽  
Author(s):  
Ryosuke Kubota ◽  
Guilin Su ◽  
Kazuhiro Ohyama
Keyword(s):  
High Frequency ◽  
Induction Machine ◽  
Impedance Characteristics

scholarly journals Controller Design of Sensorless Induction Machine by High Frequency Voltage Injection

2000 ◽  
Vol 120 (11) ◽  
pp. 1257-1264 ◽  
Author(s):  
Dae-Woong Chung ◽  
Jung-Ik Ha ◽  
Seung-Ki Sul ◽  
Kozo Ide ◽  
Ikuma Murokita ◽  
...  
Keyword(s):  
High Frequency ◽  
Controller Design ◽  
Induction Machine

Partial Impedance Spectroscopy Tests of a 6 kW Proton Exchange Membrane Water Electrolyzer Stack

2010 ◽  
Author(s):  
Taehee Han ◽  
Hossein Salehfar ◽  
Nilesh V. Dale ◽  
Mike D. Mann ◽  
Jivan N. Thakare
Keyword(s):  
High Frequency ◽  
Proton Exchange Membrane ◽  
Low Frequency ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Frequency Range ◽  
Impedance Characteristics ◽  
Pem Electrolyzer ◽  
Exchange Membrane ◽  
Partial Current

Impedance characteristics of a 6 kW proton exchange membrane (PEM) electrolyzer stack are presented under various operating conditions. An electrolyzer stack was operated under room temperature and partial current range (0 to 80 A). The whole stack impedance spectrums were measured by three different power supply configurations. The total sweeping frequency range (0.5 Hz to 20 kHz) is divided into low frequency (0.5 to 20 Hz), middle frequency (20 Hz to 1 kHz), and high frequency (1 to 20 kHz). Each frequency range required a different measurement setup to measure the whole stack impedance data. In this study, the partial impedance spectrums at low and high frequency ranges are successfully measured and analyzed. The measured data is verified with Kramers-Kronig relations. Measurement issues at the middle frequency region are discussed.

scholarly journals Basic Study of High-Frequency Impedance Characteristics of Ground System

2008 ◽  
Vol 128 (11) ◽  
pp. 1239-1245 ◽  
Author(s):  
Takashi Tsuchida ◽  
Masaki Tsuneoka ◽  
Yoshinao Ohkawa ◽  
Yuuta Nakajima
Keyword(s):  
High Frequency ◽  
Basic Study ◽  
Impedance Characteristics ◽  
Ground System

High frequency impedance characteristics of a tunable microplasma device

2021 ◽  
Vol 129 (15) ◽  
pp. 153301
Author(s):  
Saurav Gautam ◽  
Gabriele Morra ◽  
Ayyaswamy Venkattraman
Keyword(s):  
High Frequency ◽  
Impedance Characteristics
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