Photovoltaic Apparatus Processor Battery Charging Efficiency
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Solution Overview
Problem
Current solar photovoltaic plants face power loss and reduced sales revenue due to inefficiencies in charging and discharging battery-based energy storage systems, leading to limited operating profit, especially when generated power is insufficient to cover consumption costs.
Innovation Solution
A solar photovoltaic apparatus equipped with a processor that calculates charging efficiency-based power and determines whether to charge or discharge the battery-based energy storage system based on the generated power amount and consumption power, optimizing energy supply to either store or sell the power effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If DC power is provided to the battery-based energy storage system to charge the battery, then electric energy can be stored for later sale, but power loss occurs due to consumption by internal components and cooling
Solution Approach 1:
The system dynamically changes operational parameters by switching between charging mode (when generated power exceeds consumption) and discharging mode (when generated power is insufficient), optimizing the balance between energy storage and power loss
Solution Approach 2:
The control unit continuously monitors the relationship between generated power and consumption power, using this feedback to determine whether to charge or discharge the battery, thereby minimizing power loss while maintaining adequate energy storage
2Productivity
If the battery-based energy storage system charges and discharges electric energy, then power can be stored and sold, but additional power loss occurs in the charging/discharging process
Solution Approach 1:
The system employs dynamic operational modes, switching between charging, discharging, and idle states based on real-time power generation and consumption conditions, optimizing the trade-off between productivity and energy loss
Solution Approach 2:
The control unit adjusts operational parameters by changing the battery's state (charged, discharged, or idle) based on the balance between generated power and consumption power, maximizing productivity while minimizing charging/discharging losses
3Quantity of substance
If generated power amount is smaller than consumption power, then the system cannot store power in the battery, but providing DC power to charge anyway is wasteful
Solution Approach 1:
The system serves itself by automatically determining its own operational state (charging or discharging) based on its current power balance, eliminating wasteful charging operations when generated power is insufficient
Solution Approach 2:
The control unit changes the operational parameter of the battery from charging mode to discharging mode when generated power is smaller than consumption power, preventing wasteful energy consumption while maintaining the capability to store power when conditions are favorable
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 approach improves sales revenue and operating profit by ensuring that generated power is either stored efficiently or sold immediately, minimizing power loss and maximizing revenue based on the balance between generated and consumption power.
Implementation Method 1
a solar photovoltaic cell array to generate power using solar energy
Data Source
AI summary
A photovoltaic apparatus according to an embodiment of the present invention may comprise: a photovoltaic cell array for generating electricity by using solar energy; a battery energy storage system for charging electric energy supplied from the photovoltaic cell array and discharging the charged electric energy to a system; and a processor for controlling a generated power amount to be supplied to the system on the basis of the generated power amount of the photovoltaic cell array and power consumption of the photovoltaic apparatus.