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This paper presents a novel concept for energy transfer within a multi-three-phase permanent magnet synchronous machine equipped with individually controlled single-tooth windings and integrated full-bridge inverters. Designed for low-voltage applications, the system combines enhanced safety and modularity with the capability to dynamically balance power across subsystems using mechanical energy transfer via the shared rotor shaft. Each of the 30 stator windings is driven by a dedicated full-bridge inverter, enabling high dc-link voltage utilization, reduced current ripple, and precise phase-level control. The machine is structured into ten independent three-phase systems, each governed by an extended dq0-field-oriented control scheme with zero-sequence compensation. The energy transfer mechanism uses the already existing control setup and does not interfere with shaft torque, provided there is sufficient margin to the maximum torque limit. Experimental results demonstrate successful real-time energy transfer between inverter subsystems, confirming the feasibility of the concept for hybrid or distributed energy architectures. The proposed system provides a foundation for energy management in systems with multiple energy sources without the need for additional dc-dc converters.

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Intra-Machine Energy Transfer Between Systems of a Multiphase Single-Tooth Inverter on a Permanent Magnet Synchronous Machine

  • 会议论文

  • 发表日期：

    2026年

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  • Felix Gliese,
  • Christoph Sachs,
  • David Cello,
  • Jörg Roth-Stielow

摘要

This paper presents a novel concept for energy transfer within a multi-three-phase permanent magnet synchronous machine equipped with individually controlled single-tooth windings and integrated full-bridge inverters. Designed for low-voltage applications, the system combines enhanced safety and modularity with the capability to dynamically balance power across subsystems using mechanical energy transfer via the shared rotor shaft. Each of the 30 stator windings is driven by a dedicated full-bridge inverter, enabling high dc-link voltage utilization, reduced current ripple, and precise phase-level control. The machine is structured into ten independent three-phase systems, each governed by an extended dq0-field-oriented control scheme with zero-sequence compensation. The energy transfer mechanism uses the already existing control setup and does not interfere with shaft torque, provided there is sufficient margin to the maximum torque limit. Experimental results demonstrate successful real-time energy transfer between inverter subsystems, confirming the feasibility of the concept for hybrid or distributed energy architectures. The proposed system provides a foundation for energy management in systems with multiple energy sources without the need for additional dc-dc converters.