Abstract
In this paper, we focus on building and researching the self-power sensor system based on the tiny energy harvesting technology which can be used in the scenario of ubiquitous power Internet of Things (UPIoT) and prove the possibility and efficiency for the life extension of transmission line intelligent sensing system. Large scale of sensor in the smart grid technology application, especially in high-voltage transmission lines, is not convenient; it is worth mentioning that most of all kinds of sensor node equipment using battery power make the life of the equipment or components limited by greatly. Therefore, low power consumption, long life, no battery dependence, free maintenance, and other requirements are increasingly important to solve the difficulties of deployment and maintenance. At the same time, the problem of the battery case electricity use with low efficiency and short life of sensor node has become the bottleneck of further widely deployed wireless sensor node equipment. The power collection technology based on environmental energy can effectively handle with the problems of energy collection efficiency and management that need to be urgently solved in new application scenarios such as zero-standby power consumption devices, remote active tags, battery-free telemetry and remote control, and ultralong life sensing system. By studying various kinds of environmental energy collection technologies and utilizing the conversion and management technologies of available weak environmental energy, such as solar energy and magnetic field energy, into electric energy, this paper establishes an energy conversion test system and configuration model and verifies the feasibility of the assumption of maintenance-free for the intelligent sensing system of transmission lines.
Highlights
Introduction of Transmission Line Intelligent SensingSystem and Environmental Microenergy Collection TechnologySmart grid sensing system of the transmission line, conductor temperature, and image conductor is a practical and monitoring system, such as dancing and overhead line transmission tower in the process of forming and ops bolt used in all kinds of intelligence, pressure, and settlement
We focus on building and researching the self-power sensor system based on the tiny energy harvesting technology which can be used in the scenario of ubiquitous power Internet of Things (UPIoT) and prove the possibility and efficiency for the life extension of transmission line intelligent sensing system
This work proposes a sensor micropower energy collection system and an effective detection method according to the energy utilization in the working environment of the electric energy sensor
Summary
Rechargeable batteries are commonly used in wireless sensor systems for energy storage. Compared with standard capacitors and batteries, supercapacitors have many advantages, making them as ideal substitutes These advantages include short charge and discharge times than rechargeable batteries, high efficiency which is up to 98%, lower internal resistance, large power output, better thermal performance, and a better. Self-discharge and the leakage are essentially the same, in view of the supercapacitor structure, equivalent to inside the capacitance between the positive and negative has a high resistance current path; it means at the time of capacitor charging, there will be an additional current at the same time. The test results are as follows: According to the test data shown in Tables 2 and 3, supercap-3 has excellent performance in terms of the overall charge-discharge effect and self-leakage; supercap-3 is selected as the energy storage element of the system. The system converts solar energy into electric energy through a 2:5 cm ∗ 2:5 cm solar panel suitable for small
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