EPE Association: NORpie 1998 - Topic 02: ELECTRIC DRIVES

NORpie 1998 - Topic 02: ELECTRIC DRIVES
You are here: EPE Documents > 05 - EPE Supported Conference Proceedings > NORpie - Proceedings > NORpie 1998 > NORpie 1998 - Topic 02: ELECTRIC DRIVES

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   Simulating the Effect of Current Filters in a Ship Network
By Mika Hlikkola; Mikko Kajava; Mikko Koskela [View]
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Abstract: The voltage distortion can be a critical matter in the electrical networks of ships having dieselelectric propulsion systems. Filters can be used to lower the distortion level. Simulation is a good tool in determining the need of filters and in designing them. In this article passive filter theory is handled briefly. The network of a cable laying ship having PWM-propulsion and filters is modelled and simulated. The results are compared with measurements. Results are in good agreement.

   Space-Vector-Theory Based Steady State Analysis Simplifies Understanding of Vector Control in Induction Motor Drives
By Ned Mohan; Mahmoud Riaz; Frede Blaabjerg; Tore Undeland [View]
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Abstract: The objectives of this paper are twofold: The first objective is to promote an approach based on space vector theory to analyze steady state operation of induction machines in the first course on this subject. The second objective is to show that the steady state analysis based on space-vector-theory allows a physical explanation of vector control. By simplifying its explanation, vector control can be taught, at least qualitatively, in the first course on electric drives to a relatively large number of students, potentially resulting in more applications of vector control, and further research and innovation.

   EFFECTS OF FILTERED PWM-INVERTER SUPPLY ON MEDIUM SPEED (<30000 rpm) SOLID-ROTOR INDUCTION MOTOR CHARACTERISTICS
By J. Huppunen; J. Pyrhonen [View]
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Abstract: Inverter output harmonics create great amount of losses in solid rotor induction moton. The output filter of the PWM-inverter is introduced to smoothen the inverter output wave forms. Thus the efficiency of the solid rotor induction motor will increase remarkably. The filter is designed so that it also compensates the magnetising current of the motor. Therefore the inverter output current is limited. The paper presents the characteristics of a 16 kW, 13500 l h i n solid-rotor induction motor drive for a robotic milling machine application.

NORpie 1998 - Topic 02: ELECTRIC DRIVES
You are here: EPE Documents > 05 - EPE Supported Conference Proceedings > NORpie - Proceedings > NORpie 1998 > NORpie 1998 - Topic 02: ELECTRIC DRIVES
	[return to parent folder]

	Simulating the Effect of Current Filters in a Ship Network By Mika Hlikkola; Mikko Kajava; Mikko Koskela	[View] [Download]
Abstract: The voltage distortion can be a critical matter in the electrical networks of ships having dieselelectric propulsion systems. Filters can be used to lower the distortion level. Simulation is a good tool in determining the need of filters and in designing them. In this article passive filter theory is handled briefly. The network of a cable laying ship having PWM-propulsion and filters is modelled and simulated. The results are compared with measurements. Results are in good agreement.

	Space-Vector-Theory Based Steady State Analysis Simplifies Understanding of Vector Control in Induction Motor Drives By Ned Mohan; Mahmoud Riaz; Frede Blaabjerg; Tore Undeland	[View] [Download]
Abstract: The objectives of this paper are twofold: The first objective is to promote an approach based on space vector theory to analyze steady state operation of induction machines in the first course on this subject. The second objective is to show that the steady state analysis based on space-vector-theory allows a physical explanation of vector control. By simplifying its explanation, vector control can be taught, at least qualitatively, in the first course on electric drives to a relatively large number of students, potentially resulting in more applications of vector control, and further research and innovation.

	EFFECTS OF FILTERED PWM-INVERTER SUPPLY ON MEDIUM SPEED (<30000 rpm) SOLID-ROTOR INDUCTION MOTOR CHARACTERISTICS By J. Huppunen; J. Pyrhonen	[View] [Download]
Abstract: Inverter output harmonics create great amount of losses in solid rotor induction moton. The output filter of the PWM-inverter is introduced to smoothen the inverter output wave forms. Thus the efficiency of the solid rotor induction motor will increase remarkably. The filter is designed so that it also compensates the magnetising current of the motor. Therefore the inverter output current is limited. The paper presents the characteristics of a 16 kW, 13500 l h i n solid-rotor induction motor drive for a robotic milling machine application.