Autonomous Transmission Line Cleaning Across Spacers and Wire Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current methods for cleaning high power transmission lines are inefficient, as they either pose safety risks to ground crews or result in significant power losses due to the need for live line work or costly helicopter-assisted cleaning, and existing autonomous solutions do not effectively traverse spacers or hot spots, nor can they clean multiple adjacent lines simultaneously.
Innovation Solution
An autonomous cleaning apparatus with retractable arms, motion wheels, and rotating brushes that can detect and adapt to changes in wire diameter, traverse over obstructions, and clean multiple lines by using inductive power and proximity sensors to manage brush contact and position, allowing for remote operation and data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If ground-based cleaning crews are used to clean transmission lines, then cleaning can be performed, but safety risks increase due to exposure to arcing between ground and live transmission lines
Solution Approach 1:
The cleaning device is autonomous and self-powered, deriving electrical power inductively from the transmission line itself through a coil assembly. The device independently traverses the line using drive wheels and performs cleaning operations without human intervention, eliminating safety risks to ground crews while maintaining cleaning effectiveness
Solution Approach 2:
The patent replaces the mechanical ground-based cleaning system with an autonomous device that uses inductive electromagnetic coupling for power transfer. The coil assembly inductively couples with the transmission line to generate electrical power for the device's motors and cleaning mechanisms, eliminating the need for physical contact with live lines
2Reliability
If transmission lines are disconnected for cleaning, then safety risks are reduced, but power losses increase due to lost power sales
Solution Approach 1:
The device operates autonomously on live transmission lines, deriving all necessary electrical power inductively from the line itself. This allows cleaning to be performed without disconnecting the line, maintaining continuous power sales while eliminating safety hazards through remote autonomous operation
Solution Approach 2:
The patent introduces an inductive coupling system as an intermediary between the cleaning device and the transmission line. The coil assembly wirelessly transfers power through electromagnetic induction, allowing the device to operate on live lines without direct electrical contact or disconnection
3Ease of operation
If helicopter-assisted cleaning is used to reach remote areas, then accessibility to remote transmission lines is improved, but operational costs increase due to specialized equipment and labor
Solution Approach 1:
The autonomous device traverses transmission lines independently using drive wheels that contact the line surface. The device self-propels through remote and difficult-to-access terrain without requiring helicopters or specialized transport, significantly reducing operational costs while maintaining accessibility to remote areas
Solution Approach 2:
The patent replaces expensive helicopter-based cleaning systems with an autonomous ground-based device that uses inductive power transfer. The device operates independently on live lines, eliminating the need for costly specialized equipment and labor while maintaining effectiveness in remote locations
4Reliability
If a single cleaning device is used on one transmission line, then the device can maintain stable operation, but productivity decreases due to inability to clean multiple lines simultaneously
Solution Approach 1:
The patent describes a system with multiple autonomous cleaning devices that can operate simultaneously on different transmission lines. Each device is self-contained and independent, allowing parallel cleaning operations across multiple lines, thereby increasing overall productivity while maintaining operational stability on each individual line
Solution Approach 2:
The cleaning system is divided into multiple independent autonomous devices, each capable of operating separately on individual transmission lines. This segmentation allows simultaneous cleaning of multiple lines without interference, increasing total system productivity while maintaining the operational stability of each unit
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 apparatus efficiently cleans high power transmission lines, reducing power losses by maintaining continuous contact and adapting to wire changes, while ensuring safety and reducing operational costs through autonomous operation and simultaneous cleaning of multiple lines.
Implementation Method 1
both the at least one motion wheel and the support wheel are configured to be in continuous contact with the electrical wire and compensate for changes in a diameter of the electrical wire
Implementation Method 2
a cleaning unit disposed on a distal end of each of the plurality of retractable arms
Implementation Method 3
cleaning units...brushing a surface of the electrical wire
Data Source
AI summary
An apparatus for autonomous cleaning of an electrical wire includes an inductive means to derive power from the electrical wire through inductive coupling, a drive motor for driving motion wheels in contact with the electrical wire, and at least one retractable arm having a cleaning unit comprising a brush in contact with the electrical wire for cleaning the electrical wire. The apparatus is configured to raise the at least one retractable arm when an obstruction on the wire is detected, thereby permitting the apparatus to traverse over the obstruction and continue cleaning the electrical wire. The apparatus also includes a support wheel configured to automatically compensate for any changes in diameter of the wire during the cleaning process. The apparatus may also be used to clean multiple wires at once and is further provided with a suite of electronics for collecting and sending data to an outside operator.