COMPUTER SIMULATION OF THE EMITTING MODULE OF THE SOLAR POWER PLANT MONITORING SYSTEM

• Date: 2021
• Author Affiliations: V. Magro — Oles Honchar Dnipro National University, 49010, 72, Gagarina avenue, Dnipro, Ukraine.; S. Plaksin — Institute of Transport Systems and Technologies of National Academy of Sciences of Ukraine, 49000, 5, Pisarzhevskogo St., Dnipro, Ukraine.
• Keywords: keywords
• Main Authors: Magro, V., Plaksin, S.
• Format: Article
• Language: Ukrainian
• Published: Institute of Renewable Energy National Academy of Sciences of Ukraine 2021
• Subjects: monitoring and scheduling system; solar power plant; radiating device; planar inverted-F antenna.
• Online Access: https://ve.org.ua/index.php/journal/article/view/297
• Journal Title: Vidnovluvana energetika

Various telecommunication channels are used in the interaction between the monitoring and dispatching system of the solar power plant and the central power system. It can be a satellite channel, a mobile communication system channel, a radio channel. The solar power plant control system contains transceiver and radiation modules. The design of the emitting module depends on the type of telecommunication channel. In most cases, terrestrial telecommunication links have an advantage over satellite links in terms of economy. In addition to the standard designs of the radiating devices of the monitoring system, the use of a low-profile antenna, namely a planar F-shaped antenna, has been proposed. An antenna of this type can also be used in a control system to organize interaction between a distributed solar power plant and a maglev line. The calculation of a planar inverted-F antenna for the monitoring and dispatching system of a solar power plant has been carried out. A mathematical model of a planar inverted-F antenna has been created. Optimization of the geometric dimensions of such an antenna was carried out according to the criterion of the minimum reflection coefficient at the antenna input. It is obtained that the reflection coefficient at the input of such an antenna does not exceed 0.15. The optimal position of the radiating surface relative to the screen is calculated. The choice of the optimal position of the grounding plate in such a radiating structure is carried out. For the operating frequency of 2.4 GHz, the general radiation characteristics of this antenna are calculated: radiation pattern, operating frequency band. To organize two telecommunication channels with one antenna, it is proposed to use a planar inverted-F antenna with an L-shaped cutout. The radiation characteristics of a planar inverted-F antenna with an L-shaped cutout are calculated. This modification of the antenna provides two operating frequency bands, namely 0.9 and 1.8 GHz. The geometric dimensions of the F-shaped antenna with an L-shaped cutout are optimized. Ref. 6, fig.7.