Solar Power Management Device with Battery Charge Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electricity supply management devices fail to optimally adjust power consumption by load devices, leading to inefficient use of solar energy and excessive reliance on commercial AC power sources.
Innovation Solution
An electricity supply management device that automatically controls power consumption based on the amount of power generated by a solar cell and the charge level of a storage battery, prioritizing solar power and limiting consumption when the battery is full, and supplementing with commercial AC power when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If power consumption by load devices is increased to meet demand, then user satisfaction is improved, but solar energy utilization becomes inefficient and commercial AC power reliance increases
Solution Approach 1:
The control unit continuously monitors the charge level of the storage battery and the power generation amount of the solar cell, and automatically adjusts the power consumption of load devices based on this feedback. When the battery charge level is high, the system allows higher power consumption; when the charge level is low, the system reduces power consumption to preserve solar energy for future use.
Solution Approach 2:
The power consumption level of load devices is dynamically adjusted based on real-time conditions of solar power generation and battery charge level. The system transitions between different power consumption states (high, medium, low) according to the available solar energy and battery status, optimizing the balance between user needs and energy efficiency.
2Loss of energy
If power consumption by load devices is limited to save solar energy, then solar energy utilization is improved, but user convenience deteriorates
Solution Approach 1:
The system automatically manages power allocation without requiring user intervention. The control unit autonomously decides which load devices should be operated or restricted based on battery charge level and solar generation, eliminating the need for users to manually adjust settings while still providing convenient operation within available energy constraints.
Solution Approach 2:
The system dynamically adjusts power consumption levels based on real-time energy availability. When solar energy is abundant and battery charge is high, more load devices can operate freely. When energy is scarce, the system selectively limits power to non-essential devices while maintaining operation of essential devices, adapting to changing conditions without fixed restrictions.
3Quantity of substance
If storage battery capacity is increased to store more solar power, then solar energy storage is improved, but device complexity and cost increase
Solution Approach 1:
The system uses dynamic control algorithms to optimize the utilization of the existing battery capacity. By continuously adjusting power consumption based on real-time charge levels and solar generation patterns, the system maximizes the effective use of available storage without requiring additional battery capacity, thereby avoiding increased system complexity.
Solution Approach 2:
The control unit changes operational parameters such as power consumption levels of various load devices based on battery charge state. This allows the system to adapt to the fixed battery capacity by optimizing usage patterns rather than increasing capacity, maintaining simplicity while achieving efficient solar energy utilization.
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 optimally manages power consumption, reducing the reliance on commercial AC power and maintaining device performance by using solar and battery power effectively, while preventing excessive battery discharge.
Implementation Method 1
a solar cell; a commercial AC power source and a storage battery, in which the storage battery is charged by an electric power from the solar cell
Data Source
AI summary
An electricity supply management device includes a solar cell; a commercial Alternating Current (AC) power source; and a storage battery, in which the storage battery is charged by an electric power from the solar cell, and a power from at least one of the solar cell, the commercial AC power source and the storage battery is supplied to one or more load devices. A power consumption level by the load devices is controlled based on comparison result between a power generation amount by the solar cell and a power consumption amount by the load devices, and a charge level of the storage battery indicative of a ratio of charging to capacity of the storage battery.