Power Supply Module Discovery Protocol for Load Sharing
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Solution Overview
Problem
Existing power supply systems lack an efficient method for load sharing across multiple systems, leading to inefficiencies in power distribution and management within power sharing groups.
Innovation Solution
A power supply module with a controllable switching device and a controller that communicates through a data interface to share power with other modules, using a discovery message-based protocol to determine a power budget and adjust switching states for optimal power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power supplies operate independently without a discovery message-based protocol, then each power supply can function autonomously, but load sharing across multiple systems is inefficient and power distribution is suboptimal
Solution Approach 1:
The system performs preliminary discovery and negotiation actions before power sharing begins. Controllers exchange discovery messages to identify potential power sharing partners and negotiate power budgets in advance, establishing a ready state before actual power transfer occurs. This preliminary coordination enables efficient load sharing while maintaining system autonomy.
Solution Approach 2:
Discovery messages serve as an intermediary mechanism between power supply controllers. These messages facilitate negotiation of power budgets and sharing parameters without requiring direct physical power connection initially. The messaging protocol acts as a mediator that coordinates the formation of power sharing groups, resolving the contradiction between autonomy and cooperation.
2Adaptability or versatility
If power supplies dynamically adjust switching states for power sharing, then power distribution adapts to load requirements, but control complexity increases
Solution Approach 1:
The power sharing system implements dynamic adjustment of switching device states based on negotiated power budgets and actual load conditions. Controllers can transition between different operational states (independent operation, power sharing, ready state) and adjust power transfer levels dynamically. This enables adaptability to changing load requirements while maintaining manageable control through state-based coordination.
Solution Approach 2:
The discovery message protocol incorporates feedback mechanisms where controllers exchange information about power capabilities, current load conditions, and sharing status. This feedback enables dynamic adjustment of power distribution while maintaining system stability through coordinated control decisions based on actual system state rather than predetermined configurations.
Data Source
AI summary
In accordance with an example embodiment, there is disclosed herein a technique for the formation of power sharing groups by a power supply module. The power supply module sends a discovery message and eventually receives the discovery message back. The power supply message also receives a discovery message from at least one other power supply module. The power supply module determines whether it is a master of the group, and if the power supply module is the master of the group, the power supply module determines power budgets for the at least one other power supply module. After obtaining a power supply budget, a controllable switching device is closed enabling power to be shared with the at least one other power supply module.