A multi-objective comprehensive optimization line induction energy harvesting device and its configuration method

Abstract

The invention discloses a multi-objective comprehensive optimization line induction energy taking device and a configuration method thereof. The multi-objective comprehensive optimization line induction energy taking device comprises a high-voltage transmission line and a load; at least two magnetic cores are sleeved on the outer side of the high-voltage transmission line; a winding is wound outside each magnetic core; and two ends of the winding are respectively connected with the load. In order to remarkably improve the initial permeability and saturation characteristic of the composite magnetic core topology and expand the effective working current interval of the energy taking device, the proper magnetic core lengths of a first magnetic core and a second magnetic core are selected. According to the invention, the inherent problem that the traditional cross-core line induction energy taking topology cannot have two advantages of high magnetic conductivity and high saturation at thesame time can be solved; in the field of on-site power supply of high-voltage power transmission line on-line monitoring equipment, the magnetic core topology and the parameter design method thereof are simple, diverse and easier to implement, and have good economical efficiency and practicability.

Description

technical field [0001] The invention belongs to the field of equal-potential on-site power supply for on-line monitoring equipment of high-voltage transmission lines, and in particular relates to a multi-objective comprehensive optimization line induction energy harvesting device and a configuration method thereof. Background technique [0002] With the widespread application of on-line monitoring technology for power transmission and transformation lines and equipment in power systems, the monitoring functions and scope of power sensor networks are becoming wider and wider, such as insulator pollution flashover monitoring and cable joint temperature measurement. These monitoring sensors are usually deployed in the wild, with many nodes and harsh working environments, so the operation and maintenance work is extremely complicated and difficult. In order to ensure the stable and effective work of the monitoring device, the problem of energy harvesting and power supply needs t...

AI Technical Summary

Problems solved by technology

However, there is a fatal weakness in the traditional inductive energy harvesting method, that is, the magnetic core material cannot be compatible with high initial magnetic permeability and high saturation characteristics, which must be compatible in the process of line energy harvesting.

Therefore, when the line current fluctuates in a large range, the energy harvesting device may not be able to obtain a certain amount of energy at a certain moment, or at another moment due to the oversaturation of the magnetic core, it will cause serious heating and damage the energy harvesting device itself.

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