Segmental Rail Electrification With Microgrids for Grid-Independent Charging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional rail electrification systems face high costs, infrastructure challenges, and dependency on continuous grid power supply, limiting their use in routes with lower train volumes and isolated areas.
Innovation Solution
A segmental electrification system utilizing segmental charging infrastructure, microgrids, and an energy-optimizing operating system (EO-OS) to charge energy storage units of rolling stock, optimizing energy transfer and operation without relying on the electrical grid.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If conventional rail electrification systems are implemented, then emission reduction and operational efficiency are improved, but high infrastructure costs and grid dependency worsen
Solution Approach 1:
The electrification system is divided into discrete charging segments along the railway route rather than continuous electrification. Energy storage units are charged at specific locations (charging segments) and then autonomously navigate non-electrified segments, breaking the infrastructure into manageable, cost-effective modules.
Solution Approach 2:
The rolling stock is equipped with onboard energy storage units that enable self-sufficient operation on non-electrified segments. The system serves itself by storing energy during charging segments and using that stored energy independently during autonomous navigation, reducing continuous grid dependency.
2Productivity
If continuous grid power supply is used, then operational efficiency is improved, but vulnerability to grid disruptions and infrastructure challenges worsen
Solution Approach 1:
Energy storage units are charged in advance during dedicated charging segments before entering non-electrified segments. This preliminary energy accumulation ensures that the rolling stock has sufficient energy stored to complete autonomous navigation without real-time grid connection.
Solution Approach 2:
The system dynamically switches between grid-connected charging mode and autonomous operation mode. The energy storage unit acts as a buffer, allowing the system to adapt to grid availability and route requirements, enhancing reliability during grid disruptions.
3Reliability
If full-route electrification is implemented, then power supply reliability is improved, but cost and infrastructure complexity worsen
Solution Approach 1:
Instead of electrifying the entire route, the system implements discrete charging segments strategically located along the route. This segmented approach provides sufficient power supply reliability at critical points while avoiding the prohibitive costs of continuous electrification infrastructure.
Solution Approach 2:
The charging segments serve multiple functions: they charge energy storage units, provide power during peak demand periods, and can potentially serve as distributed energy storage nodes. This multi-functionality reduces the need for dedicated infrastructure throughout the entire route.
Data Source
AI summary
The present invention discloses a method and an electrification system for charging a rolling stock energy storage unit while the rolling stock is in or passes through a charging segment infrastructure. In addition, the present invention further discloses of a method configured to produce an optimized microgrid plan configured to supply power to a rolling stock.