Modular Multi-Port Power Synchronization With Distributed Clock Control
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Solution Overview
Problem
Existing modular multi-port systems face challenges in synchronizing power supply and demand nodes, leading to inefficiencies and potential damage due to mismatches in power supply and demand, especially with the integration of renewable energy sources like solar and wind, which lack inertial stability.
Innovation Solution
A system and method for synchronizing power supply and demand nodes using a central transformer connected to multiple ports, with DC and AC bridges, and a master controller generating a clock signal to distributed controllers for precise timing adjustments, incorporating SiC BiDFET and dual active bridges to manage power flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If modular multi-port systems integrate renewable energy sources like solar and wind, then system versatility and adaptability are improved, but system stability and reliability deteriorate due to lack of inertial stability
Solution Approach 1:
The patent introduces a central transformer with multiple ports as an intermediary component that couples various power sources and loads. This transformer acts as a mediator that manages power flow between renewable energy sources, energy storage systems, and loads, providing the necessary stability while maintaining system versatility. The transformer's magnetic coupling and galvanic isolation properties enable stable power transfer without requiring inertial stability from the renewable sources themselves.
2Device complexity
If power supply and demand nodes are not precisely synchronized, then system complexity is reduced, but power mismatch causes inefficiencies and potential damage
Solution Approach 1:
The patent implements a feedback control mechanism where distributed controllers at each port continuously monitor power supply and demand conditions, determine minimum delay timing, and adjust switching operations accordingly. This feedback loop ensures precise synchronization of power transactions, preventing mismatches that would cause energy loss or damage, while the modular structure keeps individual controller complexity manageable.
Solution Approach 2:
The system performs preliminary timing calculations by determining minimum delay timing for each port before executing power transactions. This preliminary action allows the distributed controllers to pre-coordinate their switching operations, ensuring that power supply and demand are synchronized before actual power flow occurs, thereby preventing mismatches without requiring complex real-time adjustments.
3Weight of moving object
If distributed controllers operate without centralized timing coordination, then system modularity is improved, but synchronization precision deteriorates
Solution Approach 1:
The patent merges centralized timing coordination with distributed control operations. A master controller generates a master clock signal that is distributed to all port controllers, providing a unified time reference. This merging approach maintains the modular distributed architecture while achieving precise synchronization through the common clock signal, allowing independent port operation with coordinated timing.
Solution Approach 2:
The master clock signal serves multiple functions simultaneously: it provides timing synchronization for all distributed controllers, coordinates switching operations across different ports, and enables precise measurement of minimum delay timing. This universal timing reference allows the system to maintain modularity while achieving high synchronization precision through a single multi-functional component.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Ensures precise synchronization of power supply and demand, preventing inefficiencies and damage by automatically adjusting to instantaneous changes in load and supply, enhancing system stability and efficiency, particularly in systems with dynamic port connections.
Implementation Method 1
a central transformer connected to multiple ports
Data Source
AI summary
A modular multiport converter system includes a plurality of distributed controllers, associated with different ports of the system that are able to synchronize to ensure that power drawn from the system is equal to power supplied to the system with precise timing. The distributed controllers are able to receive a clock signal from a leader controller, or from a vice leader controller in the event that leader controller is unable to function.