Documents disponibles écrits par cet auteur

Development of robust starting system using sensorless vector drive for a microturbine / Rho, Min-Sik in IEEE transactions on industrial electronics, Vol. 57 N° 3 (Mars 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 3 (Mars 2010) . - pp. 1063 - 1073 Titre : Development of robust starting system using sensorless vector drive for a microturbine Type de document : texte imprimé Auteurs : Rho, Min-Sik, Auteur ; Kim, Sam-Young, Auteur Article en page(s) : pp. 1063 - 1073 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Microturbine  (MT)  Sensorless  vector  control  Single  shaft  Starter  Starting  algorithm Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the development of a robust starting system for a microturbine (MT) with a single-shaft structure. Because the operating speed for the ignition and motoring of an MT is close to several tens of thousands of revolutions per minute, stable high-speed operation of the high-speed motor-generator (HSMG) is a critical issue in realizing a starting system for a single shaft. A sensorless vector inverter was developed for this high-speed operation. To successfully start an MT with the developed starter in practice, two new starting algorithms were proposed. One is a constant power output control algorithm that can maintain a perfect motoring schedule with significantly deteriorated performance of the input battery power in a vehicle under an extremely low temperature and severe engine drag. The other is a new reliable ignition verification logic that uses the inverter output current when the exhausted gas temperature sensor does not work properly. Since the two proposed algorithms are derived from the torque and q-axis current formulas for the vector drive, no additional hardware is required to apply them to an existing MT. In this paper, a single-shaft MT with a 10-kW inverter, 6-kW booster converter, and 25-kW HSMG was developed, and the proposed algorithms were applied to motoring. To verify the performance of the proposed algorithms, experiments were carried out under variable conditions, such as extremely low temperature (-32°C) and room temperature. The MT has used in a military truck for supplying electrical power and bleeding air. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5196772 [article] Development of robust starting system using sensorless vector drive for a microturbine [texte imprimé] / Rho, Min-Sik, Auteur ; Kim, Sam-Young, Auteur . - pp. 1063 - 1073. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 3 (Mars 2010) . - pp. 1063 - 1073 Mots-clés : Microturbine  (MT)  Sensorless  vector  control  Single  shaft  Starter  Starting  algorithm Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents the development of a robust starting system for a microturbine (MT) with a single-shaft structure. Because the operating speed for the ignition and motoring of an MT is close to several tens of thousands of revolutions per minute, stable high-speed operation of the high-speed motor-generator (HSMG) is a critical issue in realizing a starting system for a single shaft. A sensorless vector inverter was developed for this high-speed operation. To successfully start an MT with the developed starter in practice, two new starting algorithms were proposed. One is a constant power output control algorithm that can maintain a perfect motoring schedule with significantly deteriorated performance of the input battery power in a vehicle under an extremely low temperature and severe engine drag. The other is a new reliable ignition verification logic that uses the inverter output current when the exhausted gas temperature sensor does not work properly. Since the two proposed algorithms are derived from the torque and q-axis current formulas for the vector drive, no additional hardware is required to apply them to an existing MT. In this paper, a single-shaft MT with a 10-kW inverter, 6-kW booster converter, and 25-kW HSMG was developed, and the proposed algorithms were applied to motoring. To verify the performance of the proposed algorithms, experiments were carried out under variable conditions, such as extremely low temperature (-32°C) and room temperature. The MT has used in a military truck for supplying electrical power and bleeding air. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5196772

Effective dead-time compensation using a simple vectorial disturbance estimator in PMSM drives / Kim, Sam-Young in IEEE transactions on industrial electronics, Vol. 57 N° 5 (Mai 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1609 - 1614 Titre : Effective dead-time compensation using a simple vectorial disturbance estimator in PMSM drives Type de document : texte imprimé Auteurs : Kim, Sam-Young, Auteur ; Lee, Wootaik, Auteur ; Rho, Min-Sik, Auteur Année de publication : 2011 Article en page(s) : pp. 1609 - 1614 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Dead-time  compensation  Permanent-magnet  synchronous  motor  (PMSM)  Vectorial  disturbance  estimation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an effective online approach for dead-time compensation using a simple vectorial disturbance estimator in permanent-magnet synchronous motor (PMSM) drives. The proposed estimator can calculate the disturbance voltages, which are induced by dead time, by the use of simple vector operations, i.e., the inner and outer products of flux linkage increments and a unit back electromotive force function. Then, to compensate the effect of dead time, the estimated disturbance voltages are feedforwardly added to the current control loop. This method is applied to the 750-W laboratory PMSM drive to show its effectiveness. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280234 [article] Effective dead-time compensation using a simple vectorial disturbance estimator in PMSM drives [texte imprimé] / Kim, Sam-Young, Auteur ; Lee, Wootaik, Auteur ; Rho, Min-Sik, Auteur . - 2011 . - pp. 1609 - 1614. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 5 (Mai 2010) . - pp. 1609 - 1614 Mots-clés : Dead-time  compensation  Permanent-magnet  synchronous  motor  (PMSM)  Vectorial  disturbance  estimation Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents an effective online approach for dead-time compensation using a simple vectorial disturbance estimator in permanent-magnet synchronous motor (PMSM) drives. The proposed estimator can calculate the disturbance voltages, which are induced by dead time, by the use of simple vector operations, i.e., the inner and outer products of flux linkage increments and a unit back electromotive force function. Then, to compensate the effect of dead time, the estimated disturbance voltages are feedforwardly added to the current control loop. This method is applied to the 750-W laboratory PMSM drive to show its effectiveness. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5280234