Abstract:
Employing synchronous optimal pulsewidth modulation (PWM) techniques permits operating the PWM inverter of medium-voltage drives at very low switching frequency. The swit...Show MoreMetadata
Abstract:
Employing synchronous optimal pulsewidth modulation (PWM) techniques permits operating the PWM inverter of medium-voltage drives at very low switching frequency. The switching losses of the power semiconductor devices are thus reduced. The benefit is that a given inverter produces higher fundamental power. The optimal pulse patterns are determined by offline calculation, assuming steady-state operation of the drive machine. Dynamic modulation errors and high overcurrents, as a consequence, are therefore encountered when the operating conditions change. To overcome this problem, the harmonic components of the stator flux linkage vector are subjected to closed-loop control. The target trajectory is derived from the respective pulse pattern in use, while the actual stator flux trajectory is estimated. The approach is insensitive to parameter variations. It eliminates excessive transients when the operating conditions change. Experimental results obtained from an industrial 1-MVA 4.16-kV three-level inverter ac drive are presented
Published in: IEEE Transactions on Industry Applications ( Volume: 43, Issue: 2, March-april 2007)
Electrical Machines and Drives Group, Wuppertal University, Wuppertal, Germany
Joachim Holtz (M'87–SM'88–F'93) graduated in 1967 and received the Ph.D. degree from the Technical University of Braunschweig, Braunschweig, Germany, in 1969.
He was an Associate Professor in 1969 and a Full Professor and Head of the Control Engineering Laboratory in 1971 at the Indian Institute of Technology, Madras, India. In 1972, he was with Siemens Research Laboratories, Erlangen, Germany. From 1976 to 1998, he was a ...Show More
Joachim Holtz (M'87–SM'88–F'93) graduated in 1967 and received the Ph.D. degree from the Technical University of Braunschweig, Braunschweig, Germany, in 1969.
He was an Associate Professor in 1969 and a Full Professor and Head of the Control Engineering Laboratory in 1971 at the Indian Institute of Technology, Madras, India. In 1972, he was with Siemens Research Laboratories, Erlangen, Germany. From 1976 to 1998, he was a ...View more
Electrical Machines and Drives Group, Wuppertal University, Wuppertal, Germany
Nikolaos Oikonomou (S'05) was born in Thessaloniki, Greece, in 1977. He received the Dipl.-Ing. degree in electrical engineering from Aristotle University of Thessaloniki, Thessaloniki, Greece, in 2000. He is currently working toward the Ph.D. degree in the Electrical Machines and Drives Laboratory, Wuppertal University, Wuppertal, Germany.
His research interests include control methods for high-power converters and optimi...Show More
Nikolaos Oikonomou (S'05) was born in Thessaloniki, Greece, in 1977. He received the Dipl.-Ing. degree in electrical engineering from Aristotle University of Thessaloniki, Thessaloniki, Greece, in 2000. He is currently working toward the Ph.D. degree in the Electrical Machines and Drives Laboratory, Wuppertal University, Wuppertal, Germany.
His research interests include control methods for high-power converters and optimi...View more
Contents Electrical Machines and Drives Group, Wuppertal University, Wuppertal, Germany
Joachim Holtz (M'87–SM'88–F'93) graduated in 1967 and received the Ph.D. degree from the Technical University of Braunschweig, Braunschweig, Germany, in 1969.
He was an Associate Professor in 1969 and a Full Professor and Head of the Control Engineering Laboratory in 1971 at the Indian Institute of Technology, Madras, India. In 1972, he was with Siemens Research Laboratories, Erlangen, Germany. From 1976 to 1998, he was a Professor and Head of the Electrical Machines and Drives Laboratory at Wuppertal University, Wuppertal, Germany. He is currently a Professor Emeritus with Wuppertal University and a Consultant. He has extensively published, among others, two invited papers in the Proceedings of the IEEE and 12 invited papers in other journals. He is a coauthor of four books and holds 31 patents.
Dr. Holtz is a past Editor-in-Chief of the IEEE Transactions on Industrial Electronics, a Distinguished Lecturer of the IEEE Industry Applications Society and the IEEE Industry Electronics Society, a Senior AdCom Member of the IEEE Industrial Electronics Society, and a member of the Static Power Converter Committee, IEEE Industry Applications Society. He has earned 12 Prize Paper Awards. He was the recipient of the IEEE Industrial Electronics Society Dr. Eugene Mittelmann Achievement Award, the IEEE Industry Applications Society Outstanding Achievement Award, the IEEE Power Electronics Society William E. Newell Award, the IEEE Third Millenium Medal, and the IEEE Lamme Gold Medal.
Joachim Holtz (M'87–SM'88–F'93) graduated in 1967 and received the Ph.D. degree from the Technical University of Braunschweig, Braunschweig, Germany, in 1969.
He was an Associate Professor in 1969 and a Full Professor and Head of the Control Engineering Laboratory in 1971 at the Indian Institute of Technology, Madras, India. In 1972, he was with Siemens Research Laboratories, Erlangen, Germany. From 1976 to 1998, he was a Professor and Head of the Electrical Machines and Drives Laboratory at Wuppertal University, Wuppertal, Germany. He is currently a Professor Emeritus with Wuppertal University and a Consultant. He has extensively published, among others, two invited papers in the Proceedings of the IEEE and 12 invited papers in other journals. He is a coauthor of four books and holds 31 patents.
Dr. Holtz is a past Editor-in-Chief of the IEEE Transactions on Industrial Electronics, a Distinguished Lecturer of the IEEE Industry Applications Society and the IEEE Industry Electronics Society, a Senior AdCom Member of the IEEE Industrial Electronics Society, and a member of the Static Power Converter Committee, IEEE Industry Applications Society. He has earned 12 Prize Paper Awards. He was the recipient of the IEEE Industrial Electronics Society Dr. Eugene Mittelmann Achievement Award, the IEEE Industry Applications Society Outstanding Achievement Award, the IEEE Power Electronics Society William E. Newell Award, the IEEE Third Millenium Medal, and the IEEE Lamme Gold Medal.View more
Electrical Machines and Drives Group, Wuppertal University, Wuppertal, Germany
Nikolaos Oikonomou (S'05) was born in Thessaloniki, Greece, in 1977. He received the Dipl.-Ing. degree in electrical engineering from Aristotle University of Thessaloniki, Thessaloniki, Greece, in 2000. He is currently working toward the Ph.D. degree in the Electrical Machines and Drives Laboratory, Wuppertal University, Wuppertal, Germany.
His research interests include control methods for high-power converters and optimized PWM techniques.
Nikolaos Oikonomou (S'05) was born in Thessaloniki, Greece, in 1977. He received the Dipl.-Ing. degree in electrical engineering from Aristotle University of Thessaloniki, Thessaloniki, Greece, in 2000. He is currently working toward the Ph.D. degree in the Electrical Machines and Drives Laboratory, Wuppertal University, Wuppertal, Germany.
His research interests include control methods for high-power converters and optimized PWM techniques.View more
