Modulation Error Observation and Regulation for use in Off-line Optimal PWM Fed High Power Synchronous Motors

In synchronous motors, in the range of several mega watts, operated at low switching frequencies, it is advantageous to use off-line optimal PWM, to reduce the switching losses and undesired frequency harmonic components. But low transient performance of the system restricts the use of such commands...

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Hauptverfasser:	Rezazade, A.R., Sayyah, A., Aflaki, M.
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Feedforward systems Feeds Insulated gate bipolar transistors Laboratories Pulse width modulation Pulse width modulation inverters Switching frequency Switching loss Synchronous motors Voltage
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creator	Rezazade, A.R. Sayyah, A. Aflaki, M.
description	In synchronous motors, in the range of several mega watts, operated at low switching frequencies, it is advantageous to use off-line optimal PWM, to reduce the switching losses and undesired frequency harmonic components. But low transient performance of the system restricts the use of such commands. Considering the feed-forward structure of PWM modulators, it is tried in this paper to compensate the undesired modulation-error transients that may cause high overcurrents. An 80 kW setup is used to simulate the experiments in laboratory. IGBT based, two-point voltage source inverter is used, and operated at low switching frequencies to simulate GTO-based inverters that are commonly used to feed motors in this power range
doi_str_mv	10.1109/ICIEA.2006.257214
format	Conference Proceeding
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But low transient performance of the system restricts the use of such commands. Considering the feed-forward structure of PWM modulators, it is tried in this paper to compensate the undesired modulation-error transients that may cause high overcurrents. An 80 kW setup is used to simulate the experiments in laboratory. IGBT based, two-point voltage source inverter is used, and operated at low switching frequencies to simulate GTO-based inverters that are commonly used to feed motors in this power range</abstract><pub>IEEE</pub><doi>10.1109/ICIEA.2006.257214</doi><tpages>8</tpages></addata></record>
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identifier	ISBN: 0780395131
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source	IEEE Electronic Library (IEL) Conference Proceedings
subjects	Feedforward systems Feeds Insulated gate bipolar transistors Laboratories Pulse width modulation Pulse width modulation inverters Switching frequency Switching loss Synchronous motors Voltage
title	Modulation Error Observation and Regulation for use in Off-line Optimal PWM Fed High Power Synchronous Motors
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