Data transmission protocol, data transmission method and system for efficient communication in modular power electronics applications

WO2025186439A8PCT designated stage Publication Date: 2025-10-02PULSETRAIN GMBH
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Patent Information

Application Number
PCT/EP2025/056273
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-08
Filing Date
2025-03-07
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

Conventional data transmission protocols in complex systems like multilevel converters face limitations in efficiency, scalability, real-time capability, synchronization, and fault tolerance, particularly in systems with a large number of participants, lacking a holistic solution that integrates command, diagnostic, and acknowledgment phases.

Method used

A data transmission protocol structured into command, diagnostic, and acknowledgment phases, with a dominant-recessive bit pattern for arbitration and error detection, enabling real-time monitoring of active participants and dynamic system adaptation, using elements of the CAN protocol for robustness and synchronization.

Benefits of technology

Enables efficient, reliable, and precise control and monitoring of multiple components, optimizing data transmission to minimize delays and resource consumption, enhancing system resilience and adaptability.

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Abstract

The invention relates to a data transmission protocol, a system and a method for efficient communication in multi-level converter systems. As shown in figure 1, the protocol comprises a command transmission phase (12), a diagnosis transmission phase (18) and a confirmation phase (20). A master sends control data to subscribers, which report back status information and send confirmation signals. The system implements this protocol in a multi-level converter, wherein energy storage modules act as subscribers. The master sends switching commands for voltage regulation, while the modules report their state. This enables dynamic load distribution and reconfiguration in the event of failures. The combination of protocol and application in multi-level converters addresses challenges of modern power electronics and represents an advance over the prior art, in particular with regard to the efficiency, reliability and adaptability of the system.
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