EPE Association: EPE 2003 - Topic 05c: Open and Closed Loop Systems Control, Fault Handling Strategies

EPE 2003 - Topic 05c: Open and Closed Loop Systems Control, Fault Handling Strategies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2003 - Conference > EPE 2003 - Topic 05: APPLICATION OF CONTROL METHODS TO ELECTRICAL SYSTEMS > EPE 2003 - Topic 05c: Open and Closed Loop Systems Control, Fault Handling Strategies

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   DC-link stabilization of an induction machine drive
By H. Mosskull [View]
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Abstract: A structured way of stabilizing an induction motor drive with weak power supply is suggested. The strategy is to make the inverter passive as seen from the DC-link, within critical frequency ranges. The inverter input admittance is shaped by letting the DC-link voltage affect the torque reference. Imperfections of the control such as time delays and limited bandwidth are considered and an explicit expression for the stabilization is given in term of motor data and operation conditions.

   A safety control method of ropeless linear elevator for instantaneous power fault
By K. Yoshida; S. Moriyama [View]
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Abstract: For a ropeless linear elevator (RLE) of which drive source is a permanent-magnet (PM) linear synchronous motor, the safety control is more important than that in rope-elevator system. In this paper, we propose a safety control method to stop stably the cage at the next lower or upper floor and to avoid a dangerous fall and crash just after instantaneous power fault happens abruptly. For main four conditions of cage motion at the power fault, the safety control method is tested and verified experimentally.

   A diagnostic method for on-line fault detection and localization in VSI-fed AC drives
By S. Abramik; W. Sleszynski; J. Nieznanski; H. Piquet [View]
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Abstract: This paper describes a novel approach to the detection and localization of semiconductor faults in VSI-fed AC drives. We use the DC-to-fundamental motor current ratio as the diagnostic variable. The method has proved to reliably detect true faults, while not issuing false alarms under transient conditions. The method has been validated by both simulation and experiment.

   Sensorless control system of PMSM with adaptive observer
By K. Urbanski; K. Zawirski [View]
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Abstract: A problem of rotor speed and position detection for sensorless PMSM drive is discussed in the paper. A presented concept is a modification of solution based on detecting back EMF, induced in the stator windings. A general structure of adaptive observer with complex corrector function was introduced. Observer correction is of proportional, integral and double integral type. Simulation as well as experimental results proved good properties of proposed observer structure.

EPE 2003 - Topic 05c: Open and Closed Loop Systems Control, Fault Handling Strategies
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2003 - Conference > EPE 2003 - Topic 05: APPLICATION OF CONTROL METHODS TO ELECTRICAL SYSTEMS > EPE 2003 - Topic 05c: Open and Closed Loop Systems Control, Fault Handling Strategies
	[return to parent folder]

	DC-link stabilization of an induction machine drive By H. Mosskull	[View] [Download]
Abstract: A structured way of stabilizing an induction motor drive with weak power supply is suggested. The strategy is to make the inverter passive as seen from the DC-link, within critical frequency ranges. The inverter input admittance is shaped by letting the DC-link voltage affect the torque reference. Imperfections of the control such as time delays and limited bandwidth are considered and an explicit expression for the stabilization is given in term of motor data and operation conditions.

	A safety control method of ropeless linear elevator for instantaneous power fault By K. Yoshida; S. Moriyama	[View] [Download]
Abstract: For a ropeless linear elevator (RLE) of which drive source is a permanent-magnet (PM) linear synchronous motor, the safety control is more important than that in rope-elevator system. In this paper, we propose a safety control method to stop stably the cage at the next lower or upper floor and to avoid a dangerous fall and crash just after instantaneous power fault happens abruptly. For main four conditions of cage motion at the power fault, the safety control method is tested and verified experimentally.

	A diagnostic method for on-line fault detection and localization in VSI-fed AC drives By S. Abramik; W. Sleszynski; J. Nieznanski; H. Piquet	[View] [Download]
Abstract: This paper describes a novel approach to the detection and localization of semiconductor faults in VSI-fed AC drives. We use the DC-to-fundamental motor current ratio as the diagnostic variable. The method has proved to reliably detect true faults, while not issuing false alarms under transient conditions. The method has been validated by both simulation and experiment.

	Sensorless control system of PMSM with adaptive observer By K. Urbanski; K. Zawirski	[View] [Download]
Abstract: A problem of rotor speed and position detection for sensorless PMSM drive is discussed in the paper. A presented concept is a modification of solution based on detecting back EMF, induced in the stator windings. A general structure of adaptive observer with complex corrector function was introduced. Observer correction is of proportional, integral and double integral type. Simulation as well as experimental results proved good properties of proposed observer structure.