Resonant power transmission systems are designed for power supply to remote consumers of small and medium power, as well as for lighting of premises and territories. The systems include frequency conversion devices, power lines, and reverse voltage conversion devices to the required voltage for the consumer. This system can be used for transmitting electricity via power lines to Wi-Fi access points. (Research purpose) The research purpose is in analyzing LPWAN networks, developing a set of equipment for resonant power transmission, calculating the project cost and describing the operation of the resonant system set. (Materials and methods) During the study, the next materials, equipment, and devices were used: a three-phase rectifier with a capacitor filter, an electronic transmission control circuit, power switches and a resonant oscillating circuit (transformer). (Results and discussion) To design and manufacture the installation, authors used the principle of operation of the resonant power transmission system based on the use of two transformers, operating at a frequency of 5-15 kilohertz, and single-wire line between them with a line voltage of 1-10 kilovolts when operating in a resonant mode at which the system operates at a frequency of 7-9 kilohertz, and the voltage in the transmission line of 1500 volts allows to transmit electricity through the single-wire transmission line with a capacity of up to 8,000 watts at a distance of 1.5 kilometers. Authors analyzed the features of the LPWAN network and developed a set of equipment for resonant power transmission, transmitting and receiving units. (Conclusions) The scientific and practical significance of the results is in: a set of resonant power transmission systems, calculated the cost of the project, and the principle of operation of the system.
Distribution of Voltage Induced by Magnetic Field of Parallel Transmission Line Along Dead and Grounded Lines
