Self-Powered Energy Storage Module Control via Rectification
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Solution Overview
Problem
Existing energy storage systems for applications like vessels and offshore platforms face challenges in powering internal control units without compromising waterproofing and fire safety, as they require external power supplies that necessitate additional openings and sealing, which is difficult to manage in harsh environments.
Innovation Solution
The energy storage module integrates a plurality of electrochemical energy storage devices connected in series, with an internal control unit powered by the energy storage devices themselves through a rectifying unit, eliminating the need for external power supplies and additional openings, and includes features like active balancing and wireless communication for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an external power supply is used to power the internal control unit, then the control unit can be powered reliably, but additional openings and sealing are required which compromise waterproofing and increase complexity
Solution Approach 1:
The patent merges the power supply function with the energy storage module by using the energy storage devices themselves to power the internal control unit. This eliminates the need for separate external power supplies and their associated openings, thereby maintaining waterproofing while ensuring reliable power supply to the control unit.
Solution Approach 2:
The energy storage module powers itself by using its own energy storage devices to supply power to the internal control unit. This self-service approach eliminates external power connections and their required openings, maintaining module integrity and waterproofing while ensuring reliable operation.
2Power
If the total voltage of energy storage devices exceeds 40V DC, then higher power output is achieved, but safety risks increase requiring additional safety measures
Solution Approach 1:
The patent introduces a DC-DC converter as an intermediary between the high-voltage energy storage devices and the low-voltage internal control unit. This converter isolates the control unit from high-voltage risks while enabling the module to operate at higher voltages for increased power output, effectively managing safety risks.
Solution Approach 2:
The patent changes the voltage parameter management by using a DC-DC converter to transform the high voltage from energy storage devices into safe low voltage for the control unit. This parameter transformation allows the system to achieve high power output while maintaining safety through controlled voltage levels at different system points.
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
This solution enhances the reliability and efficiency of energy storage systems by reducing the need for external power connections, maintaining module integrity, and enabling active balancing to maintain equal voltage across cells, thus improving overall system performance and safety.
Implementation Method 1
The power supply for the internal control unit comprises one or more of the energy storage devices in the module, electrically connected to the internal control unit through a rectifying unit
Data Source
AI summary
A DC energy storage module has a plurality of DC energy storage devices electrically connected in series; an internal control unit in the DC energy storage module; and a power supply for the internal control unit. The power supply for the internal control unit includes one or more of the DC energy storage devices in the module, electrically connected to the internal control unit through a rectifying unit.