UAV Wireless Power Transfer From Utility Lines for Continuous Inspection
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Solution Overview
Problem
The existing technologies for inspecting and monitoring electrical grid infrastructure face challenges in real-time fault detection and prevention due to the vastness and age of the infrastructure, requiring efficient and reliable methods to ensure operational integrity without incurring significant capital expenditures.
Innovation Solution
The development of ultra-low frequency wireless power transfer technology for unmanned aerial vehicles (UAVs) that enables them to receive power from electrical grids using capacitive and inductive coupling, allowing for extended flight times and real-time monitoring, diagnosis, and prediction of faults in transmission and distribution assets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional inspection methods are used for electrical grid infrastructure, then capital expenditures are reduced, but real-time fault detection capability is insufficient
Solution Approach 1:
The patent replaces traditional mechanical inspection systems with wireless power transfer technology. UAVs equipped with wireless power receivers can autonomously inspect electrical grid infrastructure while receiving power wirelessly through inductive or capacitive coupling with transmission lines, eliminating the need for physical contact or mechanical connection during inspection operations.
Solution Approach 2:
The patent introduces an electromagnetic field as an intermediary between the power transmission lines and the UAVs. The electromagnetic field serves as a dual-purpose medium: it transmits electrical power to the UAVs while also enabling their operation for inspection purposes, thereby solving the contradiction between maintaining reliability and improving monitoring productivity.
2Productivity
If UAVs are deployed for continuous monitoring, then real-time fault detection is improved, but power supply duration is limited
Solution Approach 1:
The patent enables continuous operation of UAVs by providing uninterrupted power supply through wireless power transfer. The UAVs can maintain continuous monitoring operations by receiving power continuously from the transmission lines during their flight, eliminating battery replacement or recharging interruptions and achieving sustained productive action.
3Duration of action of moving object
If wireless power transfer technology is implemented, then flight time is extended, but device complexity increases
Solution Approach 1:
The patent applies multi-functionality by designing the UAV system to simultaneously perform inspection tasks and receive power wirelessly from the same electromagnetic field source. The power reception mechanism serves dual purposes: it extends flight time while also providing the energy needed for continuous monitoring operations, thereby managing complexity through functional integration rather than adding separate systems.
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 solution enhances the reliability and security of electrical grid assets by enabling UAVs to operate continuously, detect anomalies in real-time, and prevent faults, thereby reducing costs and ensuring grid stability with improved efficiency and safety.
Implementation Method 1
receive power from electrical grids using capacitive and inductive coupling
Implementation Method 2
receive power from electrical grids using capacitive and inductive coupling
Data Source
AI summary
Systems and methods for charging unmanned aerial vehicles (UAVs) using ultra-low frequency wireless power transfer technology are disclosed herein. In some embodiments, a UAV can carry a wireless power transfer (WPT) unit configured to transfer power from a utility powerline to the UAV. The WPT unit can include a first field guiding portion configured to wirelessly couple to the powerline, a second field guiding portion operatively coupled to the first field guiding portion, and an induction coil operatively coupled to the UAV and at least partially wound around at least one of the first field guiding portion or the second field guiding portion. The first and second field guiding portions can be configured to guide a magnetic field generated by current passing through the powerline toward the induction coil for inductive charging. In some embodiments, the WPT unit can include a capacitor plate and a dielectric material for capacitive charging.