EPE Association: EPE 2011 - LS9g: Topic 09: Motion Control, Robotics, Special Drives, Haptics

EPE 2011 - LS9g: Topic 09: Motion Control, Robotics, Special Drives, Haptics
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 09: Motion control, robotics, special drives, haptics, communication in drive systems > EPE 2011 - LS9g: Topic 09: Motion Control, Robotics, Special Drives, Haptics

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   New Approaches for Contactless Power Transmission Systems Integrated in PM Motor Drives Transferring Electrical Energy to Rotating Loads
By Markus REINHARD, Carsten SPINDLER, Torsten SCHUER, Joachim DENK, Veronika BIRK [View]
[Download]

Abstract: Two concepts for drive-integrated contactless energy transfer from the stator to the rotor of an electric motor are presented in this paper. Both drive systems offer the possibility of not only producing torque on the motor shaft, but also to power a rotating load. The power transfer is realized using the magnetic air gap fields. Problems inherent to contact-based methods (slip-rings and trailing cables), such as wear and limited mechanical angles, are resolved. The theoretical approach is explained for both methods. A comparison of the methods regarding the level of independence between torque generation and power transfer, efficiency and costs is made.

   Predictive Control of a Permanent Magnet Synchronous Machine based on Real-Time Dynamic Optimization
By Jean-François STUMPER, Alexander DÖTLINGER, Janos JUNG, Ralph KENNEL [View]
[Download]

Abstract: A predictive control scheme for a permanent-magnet synchronous machine (PMSM) is presented. It is based on a suboptimal method for computationally efficient trajectory generation based on continuous parameterization and linear programming. The torque controller optimizes a quadratic cost consisting of control error and machine losses in real-time respecting voltage and current limitations. The multivariable controller decouples the two current components and exploits cross-coupling effects in the long-range constrained predictive control strategy. The optimization results in fast and smooth torque dynamics while inherently using field-weakening to improve the power efficiency and the current dynamics in high speed operation. The performance of the scheme is demonstrated by experimental results.

   Reduction of the Number of Power Amplifiers for an Advanced Single-stage Planar Actuator
By Anton DRIESSEN, Korneel WIJNANDS, Jorge DUARTE, Maurice ROES [View]
[Download]

Abstract: Moving-magnet planar actuators typically have many stator coils, of which the current is controlled individually. Only the coils that lie directly underneath the translator have to be powered. Hence a large reduction in the number of power amplifiers is possible, thereby reducing system complexity and cost as well. A multiplexer topology based on solid-state switches is proposed to be able to use a minimal amount of amplifiers. Active leakage current reduction circuitry is proposed to prevent amplifier performance degradation by the multiplexer. A high common mode rejection current transformer is designed and built for the measurement of the induced noise current.

EPE 2011 - LS9g: Topic 09: Motion Control, Robotics, Special Drives, Haptics
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2011 ECCE Europe - Conference > EPE 2011 - Topic 09: Motion control, robotics, special drives, haptics, communication in drive systems > EPE 2011 - LS9g: Topic 09: Motion Control, Robotics, Special Drives, Haptics
	[return to parent folder]

	New Approaches for Contactless Power Transmission Systems Integrated in PM Motor Drives Transferring Electrical Energy to Rotating Loads By Markus REINHARD, Carsten SPINDLER, Torsten SCHUER, Joachim DENK, Veronika BIRK	[View] [Download]
Abstract: Two concepts for drive-integrated contactless energy transfer from the stator to the rotor of an electric motor are presented in this paper. Both drive systems offer the possibility of not only producing torque on the motor shaft, but also to power a rotating load. The power transfer is realized using the magnetic air gap fields. Problems inherent to contact-based methods (slip-rings and trailing cables), such as wear and limited mechanical angles, are resolved. The theoretical approach is explained for both methods. A comparison of the methods regarding the level of independence between torque generation and power transfer, efficiency and costs is made.

	Predictive Control of a Permanent Magnet Synchronous Machine based on Real-Time Dynamic Optimization By Jean-François STUMPER, Alexander DÖTLINGER, Janos JUNG, Ralph KENNEL	[View] [Download]
Abstract: A predictive control scheme for a permanent-magnet synchronous machine (PMSM) is presented. It is based on a suboptimal method for computationally efficient trajectory generation based on continuous parameterization and linear programming. The torque controller optimizes a quadratic cost consisting of control error and machine losses in real-time respecting voltage and current limitations. The multivariable controller decouples the two current components and exploits cross-coupling effects in the long-range constrained predictive control strategy. The optimization results in fast and smooth torque dynamics while inherently using field-weakening to improve the power efficiency and the current dynamics in high speed operation. The performance of the scheme is demonstrated by experimental results.

	Reduction of the Number of Power Amplifiers for an Advanced Single-stage Planar Actuator By Anton DRIESSEN, Korneel WIJNANDS, Jorge DUARTE, Maurice ROES	[View] [Download]
Abstract: Moving-magnet planar actuators typically have many stator coils, of which the current is controlled individually. Only the coils that lie directly underneath the translator have to be powered. Hence a large reduction in the number of power amplifiers is possible, thereby reducing system complexity and cost as well. A multiplexer topology based on solid-state switches is proposed to be able to use a minimal amount of amplifiers. Active leakage current reduction circuitry is proposed to prevent amplifier performance degradation by the multiplexer. A high common mode rejection current transformer is designed and built for the measurement of the induced noise current.