EPE Association: NORpie 2000 - Topic 06: ELECTRICAL DRIVES

NORpie 2000 - Topic 06: ELECTRICAL DRIVES
You are here: EPE Documents > 05 - EPE Supported Conference Proceedings > NORpie - Proceedings > NORpie 2000 > NORpie 2000 - Topic 06: ELECTRICAL DRIVES

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   Multivariable PI Control with Feedforward Control for a Current Source Converter
By A. Klönne; F.W. Fuchs [View]
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Abstract: In this paper a multivariable state feedback control for the control of a current source converter is presented. Unlike other three phase power converters controlled in the dqframe with synchronously rotating reference frame with separated single controllers, the control strategy uses a multivariable PI control with feedforward control. Special attention is layed on the elimination of steady state errors together with good dynamic response. Also the decoupling concept is presented. Simulation results demonstrate the feasibility of the proposed control.

   Propulsion Systems for Wire Drawn Ferries
By L. Helle; F. Blaabjerg [View]
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Abstract: This paper investigates ve dierent energy systems for propulsion of wire drawn ferries. Four of the propulsion methods use a combination of batteries and fuel while the fth is solely based on fuel. In the comparison, the consumption of fuel and electrical energy is compared and an estimate on the yearly costs are given, including maintenance and depreciation. From an economic point of view it is concluded that the best suited solution is a diesel electric propulsion system without batteries.

   Variable Speed Wind Turbine using Full Conversion
By Lars Henrik Hansen; Poul Sørensen; Uwe Schmidt Paulsen [View]
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Abstract: Various types of power control strategies have been suggested for application in variable speed wind turbines. The usual strategy is to control the power or the torque acting on the wind turbine shafts. This paper presents an alternative control strategy, where the rotational speed is the controlled variable. The implemented control strategy is based on an off-line optimisation. It has been verified on a test installation at Risø National Laboratory comprising a 500 kW Nordtank wind turbine and a 630 kW Siemens frequency converter. After a short presentation of the test installation the developed control strategy is described. The presented variable speed concept is compared to the conventional fixed speed concept by looking at power quality performance and flicker emission. As a first step towards wind power plants, the control strategy supports controllable power output from the wind turbine. It is demonstrated how the power output of the test installation can be limited to e.g. 300 kW.

NORpie 2000 - Topic 06: ELECTRICAL DRIVES
You are here: EPE Documents > 05 - EPE Supported Conference Proceedings > NORpie - Proceedings > NORpie 2000 > NORpie 2000 - Topic 06: ELECTRICAL DRIVES
	[return to parent folder]

	Multivariable PI Control with Feedforward Control for a Current Source Converter By A. Klönne; F.W. Fuchs	[View] [Download]
Abstract: In this paper a multivariable state feedback control for the control of a current source converter is presented. Unlike other three phase power converters controlled in the dqframe with synchronously rotating reference frame with separated single controllers, the control strategy uses a multivariable PI control with feedforward control. Special attention is layed on the elimination of steady state errors together with good dynamic response. Also the decoupling concept is presented. Simulation results demonstrate the feasibility of the proposed control.

	Propulsion Systems for Wire Drawn Ferries By L. Helle; F. Blaabjerg	[View] [Download]
Abstract: This paper investigates ve dierent energy systems for propulsion of wire drawn ferries. Four of the propulsion methods use a combination of batteries and fuel while the fth is solely based on fuel. In the comparison, the consumption of fuel and electrical energy is compared and an estimate on the yearly costs are given, including maintenance and depreciation. From an economic point of view it is concluded that the best suited solution is a diesel electric propulsion system without batteries.

	Variable Speed Wind Turbine using Full Conversion By Lars Henrik Hansen; Poul Sørensen; Uwe Schmidt Paulsen	[View] [Download]
Abstract: Various types of power control strategies have been suggested for application in variable speed wind turbines. The usual strategy is to control the power or the torque acting on the wind turbine shafts. This paper presents an alternative control strategy, where the rotational speed is the controlled variable. The implemented control strategy is based on an off-line optimisation. It has been verified on a test installation at Risø National Laboratory comprising a 500 kW Nordtank wind turbine and a 630 kW Siemens frequency converter. After a short presentation of the test installation the developed control strategy is described. The presented variable speed concept is compared to the conventional fixed speed concept by looking at power quality performance and flicker emission. As a first step towards wind power plants, the control strategy supports controllable power output from the wind turbine. It is demonstrated how the power output of the test installation can be limited to e.g. 300 kW.