Dynamic Charge Control for Photovoltaic Battery Stability
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Solution Overview
Problem
The instability of power generation by photovoltaic power generators makes it difficult to determine the amount of electric power available for charging batteries, leading to potential system failures when relying solely on photovoltaic power without grid power, especially during power failures.
Innovation Solution
A charge control device that sets an initial control value for electric power supply to a battery and adjusts it based on actual power generation data from the photovoltaic power generator, ensuring stable charging by increasing or decreasing the power as needed to avoid system failures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the control value is set high to maximize charging speed, then productivity is improved, but system stability deteriorates when power generation is insufficient
Solution Approach 1:
The control value is not fixed but dynamically adjusted based on actual power generation conditions. When power generation is sufficient, the control value can be increased to maximize charging speed. When power generation is insufficient, the control value is automatically decreased to maintain system stability, thus balancing productivity and reliability.
Solution Approach 2:
The system changes the control parameter (control value) based on the actual power generation state. By adjusting this parameter in response to generation conditions, the system optimizes charging speed when possible while preventing instability when generation is limited.
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
Enables efficient and stable charging of batteries using photovoltaic power while preventing system failures by dynamically adjusting the electric power supply according to the available power generation, ensuring reliable battery charging even during power failures.
Implementation Method 1
capable of charging a battery with electric power generated by a photovoltaic power generator
Data Source
AI summary
A charge control device capable of charging a battery with electric power generated by a photovoltaic power generator, includes: a setting unit configured to set a control value relating to a magnitude of electric power to be supplied to the battery; and an acquisition unit configured to acquire information relating to an actual supplied electric power supplied to the battery. The setting unit sets a predetermined initial value as the control value and then increases and decreases the control value based on the information acquired by the acquisition unit.