DC Power Control Module Battery Equalization
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Solution Overview
Problem
Conventional DC power systems face inefficiencies in power distribution and management, particularly in off-grid locations where AC power is unreliable, leading to uneven battery charging and inefficient use of rechargeable DC batteries due to varying charging requirements and lack of compatibility across different devices and power sources.
Innovation Solution
A robust power distribution and control module that allocates electrical power based on state of charge and capacity of rechargeable DC batteries, using a controller to manage input from multiple DC power sources and loads, ensuring equalization of battery state of charge and prioritizing power allocation to batteries with lower state of charge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional DC power systems are used without a control module, then device complexity is reduced, but power distribution efficiency deteriorates and battery utilization becomes uneven
Solution Approach 1:
The control module continuously monitors the state of charge of multiple batteries and uses this feedback information to dynamically adjust power distribution. The module reads battery status data and modifies charging/discharging allocations in real-time to optimize efficiency and balance utilization across all batteries.
Solution Approach 2:
The system enables batteries to serve multiple functions - they automatically charge from available power sources and can discharge to power loads when needed. The control module orchestrates this self-service behavior where batteries manage their own charge/discharge cycles based on system needs and their individual states.
2Duration of action of moving object
If power is allocated without considering battery state of charge, then allocation speed is increased, but battery life is reduced due to simultaneous full discharge or charge
Solution Approach 1:
The control module performs preliminary assessment of battery state of charge before allocating power. It reads and evaluates battery status data in advance, then makes informed allocation decisions that prevent extreme charge/discharge conditions, thereby extending battery life while maintaining efficient operation.
Solution Approach 2:
The system dynamically changes power allocation parameters based on battery state of charge. When batteries approach full or empty states, the control module adjusts allocation ratios and thresholds to prevent damaging extreme conditions, optimizing both battery longevity and power distribution efficiency.
3Adaptability or versatility
If multiple different DC power sources are used without a control module, then power source versatility is improved, but power management complexity increases
Solution Approach 1:
The control module is designed to universally manage multiple types of DC power sources and batteries through a single integrated system. It can handle various battery chemistries and power sources (solar, wind, grid) using standardized protocols, eliminating the need for separate management systems for each device.
Solution Approach 2:
The control module acts as an intermediary between diverse power sources and batteries. It translates and coordinates between different power source characteristics and battery requirements, managing the complexity of interfacing multiple incompatible systems through a centralized control layer.
4Stability of the object's composition
If batteries are charged simultaneously without state of charge consideration, then charging speed is increased, but charge uniformity deteriorates
Solution Approach 1:
The control module applies differentiated charging strategies to individual batteries based on their specific state of charge and characteristics. Each battery receives customized power allocation - some charge faster while others charge slower or discharge - creating local optimizations that maintain overall system stability and charge uniformity.
Data Source
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AI summary
A power distribution and control module includes a digital data processor and associated memory module operating an energy management program or schema and a battery charging manager program thereon. The energy management schema is operable to determine an instantaneous configuration of the power and distribution and control module, to determine total instantaneous input power available, total instantaneous power demand by connected power loads and to allocate a portion of the input power to power the loads. Thereafter any unallocated power is allocated to charge rechargeable batteries using allocation criteria that are situationally variable.