EPE Association: EPE 1997 – 14: Lecture Session L4b: PERMANENT MAGNET MOTOR DRIVES

EPE 1997 – 14: Lecture Session L4b: PERMANENT MAGNET MOTOR DRIVES
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1997 - Conference > EPE 1997 – 14: Lecture Session L4b: PERMANENT MAGNET MOTOR DRIVES

   [return to parent folder]

   SENSORLESS ELBERFELD CONTROL OF BRUSHLESS DC-MOTORS FOR ENERGY-OPTIMIZED VARIABLE-SPEED HOUSEHOLD REFRIGERATORS
By H.R. Andersen; J.K. Pedersen [View]
[Download]

Abstract: The 3-phase brushless DC-motor with trapezoidal back-EMFs is ideal for variable-speed, household refrigerators. The efficiency versus speed profile is flat and the control is simple. Sensorless control of the motor is required. A new, backEMF-based control principle referred to as ELBERFELD control is presented in this paper. The special procedure for start-up of the motor from zero speed is also described in details in the paper. Test results for the ELBERFELD control arc presented and it is concluded that ELBERFELD control is well suited for motors with speed variations within a mechanical revolution.

   PERMANENT MAGNET MULTIPOLE 6-PHASE BRUSHLESS DC MOTOR FOR AUTOMOTIVE APPLICATIONS
By T. Izhar; P. D. Evans [View]
[Download]

Abstract: This paper presents the design of a multipole, 6-phase brushless DC motor proposed for Electric Power Assisted Steering control in high performance automotive applications. Two sets of 3-phase windings which are physically decoupled are employed for this safety critical application. The torque pulsation is analysed using Finite Element and Fourier harmonic methods. An improved machine design is suggested to achieve smooth torque operation.

   A NOVEL CONTROLS-ORIENTED MODEL OF A PM GENERATOR WITH DIODE BRIDGE OUTPUT
By M. J. Ryan; R. D. Lorenz [View]
[Download]

Abstract: Permanent magnet synchronous generators used to supply DC power from a variable-speed prime mover arc often conditioned with only a full-wave diode bridge rectifier and a DC bus capacitor. This paper develops and experimentally verifies a unique, controls-oriented model for PMG's supplying voltage-stiff bus systems, including intrinsic torque/load properties. Fundamental characteristics and experimental results arc presented.

   INFLUENCE OF THE CURRENT CONTROL STRATEGY ON THE PMSM DRIVE PERFORMANCE DURING FAILURES
By N.Bianchi; S.Bolognani; M. Zigliotto; M. Zordan [View]
[Download]

Abstract: This paper deals with the performance of a Permanent Magnet Synchronous Motor (PMSM) drive during failures in the power electronic converter or in the motor connections, operated both at base speed and in the flux-weakening region. Since the current regulation is an inherent feature of each PMSM drive, the influence of different current control strategies on phase currents and motor torque when a failure occurs is accurately investigated.

EPE 1997 – 14: Lecture Session L4b: PERMANENT MAGNET MOTOR DRIVES
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 1997 - Conference > EPE 1997 – 14: Lecture Session L4b: PERMANENT MAGNET MOTOR DRIVES
	[return to parent folder]

	SENSORLESS ELBERFELD CONTROL OF BRUSHLESS DC-MOTORS FOR ENERGY-OPTIMIZED VARIABLE-SPEED HOUSEHOLD REFRIGERATORS By H.R. Andersen; J.K. Pedersen	[View] [Download]
Abstract: The 3-phase brushless DC-motor with trapezoidal back-EMFs is ideal for variable-speed, household refrigerators. The efficiency versus speed profile is flat and the control is simple. Sensorless control of the motor is required. A new, backEMF-based control principle referred to as ELBERFELD control is presented in this paper. The special procedure for start-up of the motor from zero speed is also described in details in the paper. Test results for the ELBERFELD control arc presented and it is concluded that ELBERFELD control is well suited for motors with speed variations within a mechanical revolution.

	PERMANENT MAGNET MULTIPOLE 6-PHASE BRUSHLESS DC MOTOR FOR AUTOMOTIVE APPLICATIONS By T. Izhar; P. D. Evans	[View] [Download]
Abstract: This paper presents the design of a multipole, 6-phase brushless DC motor proposed for Electric Power Assisted Steering control in high performance automotive applications. Two sets of 3-phase windings which are physically decoupled are employed for this safety critical application. The torque pulsation is analysed using Finite Element and Fourier harmonic methods. An improved machine design is suggested to achieve smooth torque operation.

	A NOVEL CONTROLS-ORIENTED MODEL OF A PM GENERATOR WITH DIODE BRIDGE OUTPUT By M. J. Ryan; R. D. Lorenz	[View] [Download]
Abstract: Permanent magnet synchronous generators used to supply DC power from a variable-speed prime mover arc often conditioned with only a full-wave diode bridge rectifier and a DC bus capacitor. This paper develops and experimentally verifies a unique, controls-oriented model for PMG's supplying voltage-stiff bus systems, including intrinsic torque/load properties. Fundamental characteristics and experimental results arc presented.

	INFLUENCE OF THE CURRENT CONTROL STRATEGY ON THE PMSM DRIVE PERFORMANCE DURING FAILURES By N.Bianchi; S.Bolognani; M. Zigliotto; M. Zordan	[View] [Download]
Abstract: This paper deals with the performance of a Permanent Magnet Synchronous Motor (PMSM) drive during failures in the power electronic converter or in the motor connections, operated both at base speed and in the flux-weakening region. Since the current regulation is an inherent feature of each PMSM drive, the influence of different current control strategies on phase currents and motor torque when a failure occurs is accurately investigated.