Mine Power Management via Regenerative Energy Exchange
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Solution Overview
Problem
In mines, the large number of large-sized machines consuming electric power results in significant energy consumption, posing environmental concerns, and existing technologies do not effectively manage electric power usage.
Innovation Solution
A mine power management system with first and second power lines for ascending and descending vehicles, respectively, and a power supply and storage apparatus to control electric power allocation, ensuring total power consumption is equal to or less than total power generation, with the electric power control unit adjusting vehicle and machine power usage based on priority levels and power generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a large number of large-sized machines are used in the mine, then productivity is improved, but electric power consumption increases
Solution Approach 1:
The patent merges the power systems of ascending and descending vehicles by connecting them through a power supply and storage apparatus. The descending vehicle's generator becomes part of the power network, feeding electricity to ascending vehicles and the processing facility, thereby combining multiple power sources into a unified system that reduces overall power consumption while maintaining high productivity
Solution Approach 2:
The patent converts the typically wasted gravitational potential energy of descending vehicles into useful electrical energy through regenerative braking. The generator on descending vehicles transforms what would be energy loss into electricity that powers ascending vehicles and the processing facility, turning a harmful energy dissipation into a beneficial power source
2Productivity
If electric power is supplied to multiple vehicles and machines simultaneously, then productivity is improved, but power consumption exceeds power generation
Solution Approach 1:
The patent implements dynamic power allocation where the power supply and storage apparatus continuously adjusts electricity distribution based on real-time conditions. The system dynamically balances power between ascending vehicles, descending vehicles, and the processing facility, ensuring power consumption never exceeds generation while optimizing work efficiency through adaptive resource allocation
Solution Approach 2:
The patent employs a feedback mechanism where the power supply and storage apparatus monitors power generation from descending vehicles and power consumption by ascending vehicles and machinery. This closed-loop control system adjusts power distribution in real-time, ensuring that total power consumption remains balanced with or below total power generation while maintaining optimal productivity
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
The system effectively reduces power consumption by optimizing the allocation of electric power among machines and vehicles, utilizing regenerative energy from descending vehicles to supply ascending vehicles, thereby minimizing overall energy usage and environmental impact.
Implementation Method 1
a power supply and storage apparatus configured to exchange electric power at least between the first power line and the second power line
Implementation Method 2
utilizing regenerative energy from descending vehicles
Data Source
AI summary
A mine power management system includes: a first power line provided at an ascent and configured to exchange electric power with an ascending vehicle traveling on the ascent; a second power line provided at a descent and configured to exchange electric power with a descending vehicle traveling on the descent; and a power supply and storage apparatus configured to exchange electric power at least between the first power line and the second power line.