Drone-Deployed Power Line Sensor for Fault Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Overhead high-voltage power transmission lines are susceptible to downing or breakage due to various factors, leading to potential electrical arcing and fires, which existing technologies have not effectively addressed in terms of timely and precise fault detection and response.
Innovation Solution
A network of low-power, low-cost power line sensors deployed on transmission lines that can detect faults, including downed or broken lines, and wirelessly notify a control system to de-energize the power line, using high-speed networks and sensors to measure line inclination and electromagnetic fields, with inductive battery charging and drone-based installation for rapid deployment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fault detection methods are used, then system simplicity is maintained, but fault detection timeliness and precision deteriorate
Solution Approach 1:
The detection system is segmented into multiple independent sensor nodes distributed along the power line. Each node independently monitors local conditions (voltage, current, acoustic signals) and communicates fault information wirelessly to a central control system, enabling timely localized detection without requiring a monolithic complex system
Solution Approach 2:
Wireless communication modules serve as intermediaries between the sensor nodes and the central control system. This intermediary layer enables timely fault information transmission without direct physical wiring, reducing system complexity while improving detection responsiveness
2Measurement precision
If continuous monitoring is implemented, then fault detection precision is improved, but energy consumption increases
Solution Approach 1:
The sensor nodes perform periodic monitoring of electrical parameters (voltage, current) and acoustic signals at predetermined intervals rather than continuous monitoring. This periodic action maintains adequate fault detection precision while significantly reducing energy consumption, allowing sensors to enter low-power states between measurement cycles
Solution Approach 2:
The system uses the existing power line infrastructure to provide power to the sensor nodes through inductive coupling. The sensors harvest energy from the electromagnetic field of the power line itself, enabling self-powered operation that eliminates separate power supply requirements and reduces overall system energy consumption
3Reliability
If comprehensive sensor deployment is performed, then fault detection coverage is improved, but installation cost increases
Solution Approach 1:
The detection system is divided into multiple standardized, modular sensor nodes that can be independently manufactured and deployed. Each node is a self-contained unit with standardized mounting interfaces, allowing comprehensive coverage through distributed deployment of identical modules, which reduces overall installation cost through economies of scale and simplified logistics
Solution Approach 2:
The system uses identical replicated sensor node designs deployed at multiple locations along the power line. This copying approach allows comprehensive coverage without increasing per-unit complexity or cost, as each node is a standardized copy of the proven design, simplifying manufacturing and installation procedures
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
Enables timely and accurate detection of power line faults, facilitating rapid emergency response and minimizing the risk of fires by precisely locating faults and de-energizing affected lines, ensuring efficient restoration of service and reducing installation costs.
Implementation Method 1
sensors to sense a downed or broken power line... measuring electro-magnetic (EM) fields generated by an active power line
Implementation Method 2
the sensor's batteries can be inductively charged from the power line's EM fields
Data Source
AI summary
A drone deployable power line fault detection sensor. The sensor can include a clamp mechanism having a clamp ring with first and second ring portions movably connected to each other and a resilient member positioned to urge the first and second ring portions toward a closed configuration. A latch can be positioned to retain the first and second ring portions in an open configuration whereby the sensor can be positioned on a power transmission line with a drone. A trigger can be coupled to the latch and operative, under the weight of the sensor, to disengage the latch thereby releasing the first and second ring portions to close around the transmission line under the force of the resilient member. One or more sensors are carried by the clamp mechanism and positioned to detect a line fault on the power transmission line, which is reported to a power station control system to de-energize the power transmission line.