Multi-Port Battery Charging Control Under Fluctuating Power Limits
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Solution Overview
Problem
Existing battery charging control devices struggle to optimize simultaneous and overlapping charging operations across multiple charging ports without overloading the energy source or electrical line, particularly when dealing with fluctuating energy sources like wind turbines and photovoltaic systems.
Innovation Solution
A battery charging control device with a charging control unit that detects the maximum current load state of the energy source's overload protection system, adjusts current thresholds, and prioritizes charging operations based on signal strength, current thresholds, and voltage fluctuations to prevent overload and optimize power distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple charging operations are performed simultaneously at multiple charging ports, then the energy supply capacity is utilized more effectively and total charging times are minimized, but the energy source or electrical line may be overloaded
Solution Approach 1:
The charging control unit dynamically adjusts the charging current distribution based on real-time detection of the maximum current load state. The system continuously monitors the energy source's overload protection system state and adapts the charging parameters accordingly, transitioning from static current allocation to dynamic current management that responds to changing load conditions
Solution Approach 2:
The system implements a feedback mechanism where the charging control unit detects the maximum current load state of the overload protection system and uses this information to control the current carried by the energy supply signal. This closed-loop control ensures that charging operations remain within safe current limits while optimizing charging efficiency
2Speed
If the current carried by the energy supply signal is increased to reduce charging time, then charging speed is improved, but the risk of overloading the energy source or electrical line increases
Solution Approach 1:
The system changes the current parameter dynamically based on the detected maximum current load state. Instead of using a fixed current value, the charging control unit adjusts the current carried by the energy supply signal according to the real-time state of the overload protection system, allowing optimal charging speed while preventing harmful overload conditions
Data Source
AI summary
A battery charging control device controls charging operations of rechargeable battery units, for which electrical energy is provided by an electrical energy source. The battery charging control device includes a charging control unit having an input connection capable of being coupled to the energy source for supplying an energy supply signal, and an output connection configuration with one or more parallel output connections for coupling a charger arrangement which comprises one or more chargers each having one or more charging ports for the rechargeable battery units. The charging control unit is configured to monitor the current provided by the energy source at the input connection and/or a current provided at a respective output connection and to enable the activation of a charging operation at a respective charging port.