Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing

The objective of the present study was to deal with the rotordynamics of the rotor of an ultra-high speed PM type synchronous motor-generator for a 500 W rated micro gas turbine generator. This paper introduces dynamic analysis, and experiments on the motor-generator. The focus is placed on an anal...

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Main Authors: Do-Kwan Hong, Dae-Suk Joo, Byung-Chul Woo, Dae-Hyun Koo, Chan-Woo Ahn
Format: Article
Language:English
Published: MDPI AG 2014-08-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/14/9/16117
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author Do-Kwan Hong
Dae-Suk Joo
Byung-Chul Woo
Dae-Hyun Koo
Chan-Woo Ahn
author_facet Do-Kwan Hong
Dae-Suk Joo
Byung-Chul Woo
Dae-Hyun Koo
Chan-Woo Ahn
author_sort Do-Kwan Hong
collection DOAJ
description The objective of the present study was to deal with the rotordynamics of the rotor of an ultra-high speed PM type synchronous motor-generator for a 500 W rated micro gas turbine generator. This paper introduces dynamic analysis, and experiments on the motor-generator. The focus is placed on an analytical approach considering the mechanical dynamic problems. It is essential to deal with dynamic stability at ultra-high speeds. Unbalance response analysis is performed by calculating the unbalance with and without balancing using a balancing machine. Critical speed analysis is performed to determine the operating speed with sufficient separation margin. The unbalance response analysis is compared with the experimental results considering the balancing grade (ISO 1940-1) and predicted vibration displacement with and without balancing. Based on these results, a high-speed motor-generator was successfully developed.
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spelling doaj.art-d101142b3a9941c1814033c9db3356cf2022-12-22T04:08:58ZengMDPI AGSensors1424-82202014-08-01149161171612710.3390/s140916117s140916117Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering BalancingDo-Kwan Hong0Dae-Suk Joo1Byung-Chul Woo2Dae-Hyun Koo3Chan-Woo Ahn4Electric Motor Research Center, Korea Electrotechnology Research Institute, Boolmosangil 70, Changwon 641-120, KoreaElectric Motor Research Center, Korea Electrotechnology Research Institute, Boolmosangil 70, Changwon 641-120, KoreaElectric Motor Research Center, Korea Electrotechnology Research Institute, Boolmosangil 70, Changwon 641-120, KoreaElectric Motor Research Center, Korea Electrotechnology Research Institute, Boolmosangil 70, Changwon 641-120, KoreaDepartment of Mechanical Engineering, Dong-A University, Saha-gu, Busan 604-714, KoreaThe objective of the present study was to deal with the rotordynamics of the rotor of an ultra-high speed PM type synchronous motor-generator for a 500 W rated micro gas turbine generator. This paper introduces dynamic analysis, and experiments on the motor-generator. The focus is placed on an analytical approach considering the mechanical dynamic problems. It is essential to deal with dynamic stability at ultra-high speeds. Unbalance response analysis is performed by calculating the unbalance with and without balancing using a balancing machine. Critical speed analysis is performed to determine the operating speed with sufficient separation margin. The unbalance response analysis is compared with the experimental results considering the balancing grade (ISO 1940-1) and predicted vibration displacement with and without balancing. Based on these results, a high-speed motor-generator was successfully developed.http://www.mdpi.com/1424-8220/14/9/16117motor-generator for micro turbineunbalance response analysisorbit diagramcritical speedwith and without balancingrotor dynamics
spellingShingle Do-Kwan Hong
Dae-Suk Joo
Byung-Chul Woo
Dae-Hyun Koo
Chan-Woo Ahn
Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing
Sensors
motor-generator for micro turbine
unbalance response analysis
orbit diagram
critical speed
with and without balancing
rotor dynamics
title Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing
title_full Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing
title_fullStr Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing
title_full_unstemmed Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing
title_short Unbalance Response Analysis and Experimental Validation of an Ultra High Speed Motor-Generator for Microturbine Generators Considering Balancing
title_sort unbalance response analysis and experimental validation of an ultra high speed motor generator for microturbine generators considering balancing
topic motor-generator for micro turbine
unbalance response analysis
orbit diagram
critical speed
with and without balancing
rotor dynamics
url http://www.mdpi.com/1424-8220/14/9/16117
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