EPE Association: EPE 1991 - 43 - Session 4.10: TRACTION 3

EPE 1991 - 43 - Session 4.10: TRACTION 3
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   CONTROL CONCEPT OF A CITYBUS DRIVEN BY TWO INDUCTION MOTORS CONSIDERING SAFE OPERATION ASPECTS
By J. Fetz; J. Langheim [View]
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Abstract: Due to increasing pollution caused by cars and busses, many communities in Europe are planning to introduce electrically driven busses for public urban transport. This paper describes the control concept for a prototype bus driven by two separately fed and controlled induction machines with a maximum speed of 6000 rpm and a large field weakening range. lt includes the field oriented drive control of the machines as well as the superimposed vehicle control of the whole system, which provides the torque reference values for the motors. The entire control will be performed by two microprocessors. Safe operation aspects including an Anti-Blocking-System (ABS) and a Slip-Control (ASR) are taken into consideration. Simulations have been carried out in order to estimate the behaviour and the drive characteristics of the electric vehicle. Results are dealt with in the paper.

   MODELLING THE THREE PHASE PROPULSION SYSTEM OF A MODERN MULTISYSTEM-LOCOMOTIVE
By W. Geissler; F. Unger-Weber [View]
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Abstract: This paper describes the modelling of the three phase propulsion system of multisystem-locomotives for high speed or freight train application. Special modular circuit designs with GTO-thyristors for use at different AC and DC voltage supply systems are derived and compared. The best concept for given application is chosen, taking into consideration different aspects of circuit designing. The electrical behaviour in steady and dynamical operation is computed by using the simulation tool NETASIM. The results of system optimization by digital simulation, supplemented by system tests in power lab, are a valuable help to an effective system design and shorter periods of commissioning on rail.

   CONTROL SYSTEM FOR A THREE PHASE GTO INVERTER FOR MASS TRANSIT APPLICATIONS
By H. P. Bauer; M. Buschmann [View]
[Download]

Abstract: Using input filters, to supply the PWM inverter directly from DC line, achieves an economic solution for mass transit applications. This paper presents a microprocessor based system for the vehicle and drive control of an underground train. Drive control is realized by Direct Self Control. The high dynamic method allows an effective suppression of voltage oscillations in the input filter. The system withstands disturbances in the supply voltage which occur, for example, when the pantograph jumps. By use of an application specific integrated circuit a new strategy for supervising and protecting the inverter has been developed and verified.

   TRACTION DRIVE FOR BRITISH-RAIL CLASS 323 EMU WITH FOUR-QUADRANT PWM 50 HZ LINE-SIDE CONVERTER
By F. van Overbeeke; L. J. J. Offringa [View]
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Abstract: Holec has developed an asynchronous traction drive based on GTO technology, allowing a range of drive solutions to be built with only two basically different active modules. Though originally designed for DC-line traction systems such as used in the Netherlands, the modules are equally suitable for configuring an AC-fed drive. This configuration has been ordered by British Railways Board for 37 Electrical Multiple Units Class 323. Key item in the system design is a strict limitation on interference currents. This is achieved by a combination of a high PWM frequency of the line-side converter (900 Hz per converter) and active and passive filtering components.

   P.W.M.-INVERTERS FEED SYNCHRONOUS LONG STATOR MOTORS DRIVING M-BAHN SYSTEM
By Georg Beinhold; Helmut Niehage [View]
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Abstract: In the M-Bahn Drive system the magnetic levetation train is driven by a synchronous long stator motor with variable voltage and frequency. AEG has developed a voltage source PWM GTO Inverter for this application with a rated power of 760 kVA and a frequency of 100 Hz with a digital control unit. This paper deals with the control system emphasizing on special requirements and characteristics of the linear motor different to those of a rotating machine and the power electronic components. They will be applied in the near future to the M-Bahn system of the Frankfurt / Main airport, connecting terminals A, B, c and D.

   ADVANCED ENERGY MANAGEMENT FOR HYBRID ELECTRIC VEHICLES
By A. Ancarani; G. Brusaglino; P. L. Degli Esposti; P. Falcione [View]
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Abstract: Hybrid electric vehicles have been conceived to improve efficiency and decrease polluting emission of conventional engines trough regenerative braking and quasi steady state heat engine working conditions. The system consists of a heat engine generating unit, a battery storage unit and a traction unit; optimization of overall efficiency can be achieved by managing the power flow between these subsystems. A strategy to be implemented by an Electronic Energy Management System is described, which led to a consumption reduction of over 20% in an experimental hybrid bus tested in practical operation.

EPE 1991 - 43 - Session 4.10: TRACTION 3
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1991 - Conference > EPE 1991 - 43 - Session 4.10: TRACTION 3
	[return to parent folder]

	CONTROL CONCEPT OF A CITYBUS DRIVEN BY TWO INDUCTION MOTORS CONSIDERING SAFE OPERATION ASPECTS By J. Fetz; J. Langheim	[View] [Download]
Abstract: Due to increasing pollution caused by cars and busses, many communities in Europe are planning to introduce electrically driven busses for public urban transport. This paper describes the control concept for a prototype bus driven by two separately fed and controlled induction machines with a maximum speed of 6000 rpm and a large field weakening range. lt includes the field oriented drive control of the machines as well as the superimposed vehicle control of the whole system, which provides the torque reference values for the motors. The entire control will be performed by two microprocessors. Safe operation aspects including an Anti-Blocking-System (ABS) and a Slip-Control (ASR) are taken into consideration. Simulations have been carried out in order to estimate the behaviour and the drive characteristics of the electric vehicle. Results are dealt with in the paper.

	MODELLING THE THREE PHASE PROPULSION SYSTEM OF A MODERN MULTISYSTEM-LOCOMOTIVE By W. Geissler; F. Unger-Weber	[View] [Download]
Abstract: This paper describes the modelling of the three phase propulsion system of multisystem-locomotives for high speed or freight train application. Special modular circuit designs with GTO-thyristors for use at different AC and DC voltage supply systems are derived and compared. The best concept for given application is chosen, taking into consideration different aspects of circuit designing. The electrical behaviour in steady and dynamical operation is computed by using the simulation tool NETASIM. The results of system optimization by digital simulation, supplemented by system tests in power lab, are a valuable help to an effective system design and shorter periods of commissioning on rail.

	CONTROL SYSTEM FOR A THREE PHASE GTO INVERTER FOR MASS TRANSIT APPLICATIONS By H. P. Bauer; M. Buschmann	[View] [Download]
Abstract: Using input filters, to supply the PWM inverter directly from DC line, achieves an economic solution for mass transit applications. This paper presents a microprocessor based system for the vehicle and drive control of an underground train. Drive control is realized by Direct Self Control. The high dynamic method allows an effective suppression of voltage oscillations in the input filter. The system withstands disturbances in the supply voltage which occur, for example, when the pantograph jumps. By use of an application specific integrated circuit a new strategy for supervising and protecting the inverter has been developed and verified.

	TRACTION DRIVE FOR BRITISH-RAIL CLASS 323 EMU WITH FOUR-QUADRANT PWM 50 HZ LINE-SIDE CONVERTER By F. van Overbeeke; L. J. J. Offringa	[View] [Download]
Abstract: Holec has developed an asynchronous traction drive based on GTO technology, allowing a range of drive solutions to be built with only two basically different active modules. Though originally designed for DC-line traction systems such as used in the Netherlands, the modules are equally suitable for configuring an AC-fed drive. This configuration has been ordered by British Railways Board for 37 Electrical Multiple Units Class 323. Key item in the system design is a strict limitation on interference currents. This is achieved by a combination of a high PWM frequency of the line-side converter (900 Hz per converter) and active and passive filtering components.

	P.W.M.-INVERTERS FEED SYNCHRONOUS LONG STATOR MOTORS DRIVING M-BAHN SYSTEM By Georg Beinhold; Helmut Niehage	[View] [Download]
Abstract: In the M-Bahn Drive system the magnetic levetation train is driven by a synchronous long stator motor with variable voltage and frequency. AEG has developed a voltage source PWM GTO Inverter for this application with a rated power of 760 kVA and a frequency of 100 Hz with a digital control unit. This paper deals with the control system emphasizing on special requirements and characteristics of the linear motor different to those of a rotating machine and the power electronic components. They will be applied in the near future to the M-Bahn system of the Frankfurt / Main airport, connecting terminals A, B, c and D.

	ADVANCED ENERGY MANAGEMENT FOR HYBRID ELECTRIC VEHICLES By A. Ancarani; G. Brusaglino; P. L. Degli Esposti; P. Falcione	[View] [Download]
Abstract: Hybrid electric vehicles have been conceived to improve efficiency and decrease polluting emission of conventional engines trough regenerative braking and quasi steady state heat engine working conditions. The system consists of a heat engine generating unit, a battery storage unit and a traction unit; optimization of overall efficiency can be achieved by managing the power flow between these subsystems. A strategy to be implemented by an Electronic Energy Management System is described, which led to a consumption reduction of over 20% in an experimental hybrid bus tested in practical operation.