The Researchof Combinable High Voltage Induction System

Electricity plays an increasingly important role in society.In the whole power transmission network,the high voltage transmission and distribution line is a very important element.When there is problem,it will have a strong impact on the normal operation of the society and bring a lot of inconvenience to people's life and work.Therefore,it is a necessary option that monitoring the state of the high voltage transmission and distribution line in real time.In recent years,researchers have developed a variety of monitoring devices,many of which are already in use,and the stable and reliable power supply is the key to the effective running of these devices.This paper gives a comprehensive overview of the existing common power generation technologies,and analyzes the conventional current transformer(CT)type power collecting equipment which is commonly used in high voltage line.The design requirement,there is no contact between power collecting equipment and high-voltage transmission line,is inconsistent with the installation requirement of traditional CT equipment,and the improvement scheme is proposed accordingly.The combined power supply mode is adopted in this scheme,which is solar energy power module and magnetic induction power module respectively.The advantages of one of the two modules can make up for weaknesses of the other.The advantage of magnetic induction power generation is that the current in the high-voltage transmission line as the energy source fluctuates but is stable,which makes the energy acquisition of the magnetic induction module more stable in a long period of time and makes the whole power generation system have a relatively stable minimum value of energy acquisition.The disadvantage of magnetic induction is low energy density.When the position of the magnetic core is changed from the traditional surrounding line to being separating from line which meets the requirement of zero contact,its ability to obtain energy is greatly reduced.The advantage of solar energy is that the energy density is large when the light is sufficient.The solar energy power module can obtain a large amount of energy in a short time to fill the battery,which increase the maximum value of energy acquisition and make up for the weakness of magnetic induction.By analyzing the magnetic field aside the actual high-voltage transmission line,the installation position,which closest to the transmission line that meet the requirements,and the installation angle of the equipment can be selected.Then,the suitable solar panels can be selected according to the meteorological data of the equipment installation place.When the distance between the installation location andthe high-voltage transmission line is different,the energy extraction capacity of the magnetic induction power generation module is quite different.Therefore,two kinds of solar power generation modules are designed.One of them has a high stability,long working hours and high efficiency,which can load power consumption alone in the worst case.The other has a simple circuit,high efficiency and low cost,which mainly aims at complementation.The test results show that the combined equipment works as expected,and it has high efficiency that can meet the power supply demand.