Power Electronics Device Dynamic Master-Slave Role Assignment
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Solution Overview
Problem
Existing power electronics systems face challenges in dynamically managing the roles of power electronics devices during initial installation or anomalous occurrences, leading to incorrect phase synchronization and reduced throughput due to the lack of effective logical configuration management and role decision mechanisms.
Innovation Solution
A power electronics device with a controlling unit that acquires and utilizes power attribute and communication attribute information to dynamically decide the master-slave relationships for power allocation and phase synchronization control, enabling autonomous cooperation and flexible operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed master/slave roles are assigned to power electronics devices, then the system structure is simple and easy to implement, but the system lacks flexibility during initial installation or anomalous occurrences and cannot dynamically adapt to changing configurations
Solution Approach 1:
The patent implements dynamic master/slave role assignment where devices can change their control subject status based on real-time system conditions. The determining unit dynamically identifies which device should be the control subject by evaluating communication connectivity and device status, allowing the system to adapt to initial installation scenarios and anomalous occurrences without fixed role assignments.
Solution Approach 2:
Each power electronics device autonomously determines its role and the control subject without requiring external configuration or manual intervention. The devices self-organize by exchanging status information through communication units and automatically selecting the appropriate control subject based on system conditions, enabling plug-and-play functionality during initial installation.
2Adaptability or versatility
If multiple devices operate autonomously without centralized coordination, then system flexibility and decentralization are improved, but phase synchronization accuracy deteriorates due to lack of unified control
Solution Approach 1:
The patent introduces a control subject device that acts as an intermediary for phase synchronization. This designated device receives status information from all other devices and sends synchronization commands to coordinate their operation. This intermediary approach maintains operational flexibility through autonomous device selection while ensuring accurate phase synchronization by centralizing the synchronization function in a dynamically selected control subject.
3Adaptability or versatility
If dynamic role assignment is implemented without considering actual installation state, then system adaptability is improved, but phase synchronization accuracy deteriorates due to incorrect control subject selection
Solution Approach 1:
The patent implements a feedback mechanism where devices continuously exchange status information through communication units. The determining unit uses this feedback to identify the appropriate control subject based on actual system conditions including communication connectivity and device operational status. This feedback-driven approach ensures that dynamic role assignment considers the actual installation state and maintains phase synchronization accuracy.
Data Source
AI summary
According to one embodiment, there is provided a power electronics device in which a selects a first power electronics device and a second power electronics device from power electronics devices, based on power attribute information and communication attribute information of each power electronics device, and the first power electronics device is a master of power allocation control of electric energy that the power electronics devices connected to one power line of power lines perform input and output on the one power line, and the second power electronics device is a master of output power phase synchronization control of power which the power electronics devices connected to the one power line outputs to the one power line.