Facility Plan Evaluation for Charging Infrastructure
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Solution Overview
Problem
Existing technologies are inefficient in planning the locations of a large number of charging facilities, as they require manual selection based on power margin and geographical accessibility levels, making it impractical for rapid growth in charging infrastructure.
Innovation Solution
A facility plan evaluation device that includes an input unit for receiving facility plans, a prediction unit for estimating charge and discharge amounts, a power flow calculating unit for estimating voltage and current, a determination unit for assessing voltage violations and overcurrents, and a result presenting unit to provide evaluation results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a large number of charging facilities are arranged to meet growing demand, then the accessibility and utility of charging infrastructure improves, but the risk of overload and voltage violation in the power system increases
Solution Approach 1:
The patent performs power flow calculations and evaluates overload/voltage violation risks before charging facilities are actually deployed. By predicting power system impacts in advance and identifying problematic locations, the system prevents reliability issues before they occur, allowing aggressive expansion of charging coverage without compromising power system stability.
2Measurement precision
If manual evaluation methods are used to assess each charging facility location, then the accuracy of individual location selection improves, but the efficiency and scalability of planning for large numbers of facilities deteriorates
Solution Approach 1:
The patent combines multiple individual location evaluations into a single batch processing system. By inputting multiple facility locations simultaneously and performing power flow calculations for all locations together, the system maintains the analytical rigor of individual assessments while achieving the efficiency needed for large-scale facility planning.
Solution Approach 2:
The patent creates a universal evaluation system that handles both individual and multiple facility assessments using the same automated workflow. The system universally applies power flow calculation and risk assessment across any number of locations, eliminating the need for different manual evaluation approaches and enabling scalable planning.
Data Source
AI summary
A facility plan evaluation device includes a proposed plan receiving unit receiving input of a facility plan including capacities and locations of charging and discharging facilities to be newly arranged in a power system, a prediction unit predicting charge and discharge amounts of the charging and discharging facilities, and demands and power generation amounts of existing facilities, which are facilities already connected in the power system, a power flow calculating unit estimating voltage and current in the power system based on a prediction result of the prediction unit, a determination unit determining whether at least one of deviation of voltage from a proper range and overcurrent occurs based on an estimation result of the power flow calculating unit, and determining whether the facility plan needs to be modified based on a determination result, and a result presenting unit presenting a determination result of the determination unit.