Battery Energy Station Current Allocation for Peak Grid Load
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Solution Overview
Problem
The increasing demand for electricity from electric vehicles strains the power grid, leading to potential power outages and blackouts, as existing power plants and grids struggle to meet peak consumption demands efficiently.
Innovation Solution
A battery energy station with an energy module, battery storage system, and processing unit that manages charging currents by distributing power sequentially from batteries with the highest to lowest electricity levels, optimizing charging operations during peak times to reduce grid load and meet user demands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If charging stations charge multiple batteries simultaneously at peak times, then user charging demand is met, but power grid load increases causing potential outages and blackouts
Solution Approach 1:
The system performs preliminary charging actions during off-peak hours by storing batteries at the battery energy station when power demand is low. This advance preparation allows the system to fulfill user charging demands during peak times without drawing excessive power from the grid, thus maintaining grid stability while ensuring user needs are met.
Solution Approach 2:
The battery energy station acts as an intermediary between the power grid and electric vehicles. It buffers the interaction by charging batteries during off-peak hours and dispensing them during peak hours, decoupling the timing of power consumption from user demand and preventing direct load spikes on the grid.
2Speed
If charging stations charge all batteries simultaneously at highest efficiency, then charging speed is maximized, but total current consumption exceeds grid capacity during peak times
Solution Approach 1:
The system segments the charging process into two distinct phases: off-peak charging during low-demand hours and peak-time battery dispensing. This segmentation allows high-speed charging to occur when grid capacity is available, while limiting peak-time power consumption to levels the grid can handle.
Solution Approach 2:
The system implements periodic charging cycles that alternate between high-power charging during off-peak periods and low-power or no-charging operations during peak periods. This periodic action pattern matches grid capacity availability, enabling maximum charging speed when possible while respecting grid power limits during peak times.
Data Source
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AI summary
Battery energy stations and charging management methods thereof are provided, which are suitable for an electronic equipment used for storing and charging a plurality of batteries. First, an electricity of each battery is obtained. Then, an energy distribution operation is performed for the batteries according to the electricity of each battery, wherein the energy distribution operation sequentially allocates a charging current for each battery from the battery with the highest electricity to the battery with the lowest electricity, until a total current is allocated. Then, the respective battery is charged according to the corresponding charging current allocated to each battery, so as to satisfy a charging demand required by at least a part of the batteries.