Over two million kilometers of power grids in Russia exist. They have to be replaced in the coming 15 years. However, nowadays we witness and participate in the development of advanced technologies. New wireless resonant electric-power systems for different power consumers are considered including stationary single-conductor transmission lines and single-trolley and noncontact high-frequency electric transport, using non-metal conductive media. The trends of the future development and application of wireless resonant systems for electric power transmission are described. In the future, electrified mobile robots with external wireless electric power supplies will allow the organization of agricultural production with full automation of technological processes. The chapter describes the method and means for electric power transmission without metal wires. In this case, several components of conventional transmission lines, such as metal wires, insulators, and cables, are excluded, which results in considerable reduction in the equipment cost.
TopBackground
However, nowadays we witness and participate in the development of advanced technologies that change the world making it better, cleaner and safer. First and foremost we should mention technologies proposed by N. Tesla a hundred years ago. N. Tesla developed electric engineering solutions with the use of alternate current. (Tesla N. 1999, Tesla N. 1978, Tesla N. Lectures. 1956, Nikola Tesla. 2008, Sarbon S., M.Sc. 2013, Tesla N. 1999, Nikola Tesla 1999).
The known methods for electric power transmission are based on delivering active power by conduction currents through a closed circuit. (Pandian Vasant, Nikolai Voropai 2016, Pandian Vasant, Gerhard-Wilhelm Weber, Vo Ngoc. Dieu. 2016, Valeriy Kharchenko, Pandian Vasant. 2018, Valeriy Kharchenko, Pandian Vasant. 2020). In this case, the electromagnetic energy propagates along transmission lines in the form of traveling waves of electromagnetic field or charges. The line conductors, manufactured of aluminum or copper, serve as conductive channels, guiding the electromagnetic energy stream from the generator to the receiver and back to the generator. Maximum power delivered through a three-phase transmission line, is limited by the loss in the line resistance, maximum voltage (determined by the insulation electric strength) and electromagnetic stability of the line. The present-day approach to ensuring electromagnetic stability lies in strict regulation of line parameters by means of rapid-operating shunt reactors and series compensating capacitors, aimed at suppressing the streams of reactive power and the line resonant properties.
A method for power transmission through a single metal conductor has been considered in. (Strebkov D.S., Nekrasov A.I. 2005, Strebkov D.S., Nekrasov A.I., Trubnikov V.Z., Nekrasov A.A. 2018, Strebkov D.S. 2014, D.S. Strebkov, A.I. Nekrasov, A.A. Nekrasov. (2019). In this case, the power is transmitted using stationary waves of reactive current and resonant properties of the line. The purpose of the present Chapter is to study the possibility of using non-metal conductive mediums for power transmission. (Strebkov D.S. 2002, RF Patent No. 2172546. 2001, RF Patent No. 2143775. 1999, Strebkov D.S., Nekrasov A.I., Avramenko S.V. 2002, Strebkov D.S., Avramenko S.V., Nekrasov A.I. 2002).
The present chapter describes the method and means for electric power transmission without metal wires. In this case, several components of conventional transmission lines, such as metal wires, insulators and cables, are excluded, which results in considerable reduction of the equipment cost.
New resonant electric-power system for different power consumers are considered including stationary single-conductor transmission lines and single-trolley and noncontact high-frequency electric transport (RF Patent No. 2172546. 2001, RF Patent No. 2143775. 1999).
The trends of the future development and application of resonant systems for electric power transmission are described. In future electrified mobile robots with external wireless electric power supply will allow to organize agricultural production on the principle “Industrial factories on the fields” with full automation of technological processes.
Motivation
Continued work of N. Tesla in the field of electric power transmission through non-metallic conductive materials. Reducing energy losses during electricity transmission; saving non-ferrous metals for the construction of power lines and the manufacture of power cables.