B.A. Kosarev1, S.V. Krivaltsevich2

1,2 Omsk Scientific Center SB RAS (Institute of Radiophysics and Physical Electronics) (Omsk, Russia)

The beginning or end of a communication session causes an abrupt change in the load value of the transceiver radio station. An abrupt change in the load of the transceiver radio station causes the use of power grid equipment with an overestimated transmission capacity, and also requires an increase in power from the generation side. As a result, the costs of power supply to the transceiver radio station are increasing. In this regard, the aim of the study is to study ways to smooth out the peak consumption of the transceiver radio station. Based on the research results, it was proposed to use distributed generation installations and optimize the operation of communication equipment to smooth out peak consumption. 

The introduction of distributed generation installations into the power supply system of industrial facilities and residential buildings is a current trend in the development of domestic energy. When choosing a distributed generation installation, one should take into account the technological features of power supplies and their installed capacity. Among the technological features of distributed generation plants, the level of acoustic noise, occupied area and cost are considered.

The level of acoustic noise of a distributed generation installation affects its distance from the transceiver radio station and the need for noise isolation. A high noise level is typical for wind turbines (up to 55 dB), diesel generator sets (up to 100 dB) and gas piston plants (up to 55−72 dB).

When designing a transceiver radio station with distributed generation, the area occupied by the power plant should be taken into account. The largest area is occupied by wind generators (non-residential area from 270,000 m2), and solar power plants (6 m2 corresponds to 1 kW of power).

The choice of power equipment for a transceiver radio station with distributed generation is influenced by its cost. Among the alternative sources, the lowest unit cost is 0.02 W/rub. have solar power plants. Among traditional sources, the lowest unit cost is 0.06 W/rub. have diesel generator sets.

The ratio of load power and distributed generation installation determines the configuration of the power supply system of the transceiver radio station. If the distributed generation installation allows to cover the peak power consumption of the transceiver radio station, then the external network and the diesel generator set are backup sources and are connected through the automatic transfer switch. If the power of the distributed generation unit is less than the peak power consumption of the transceiver radio station, then the external network is the main power source, the diesel generator set is a backup power source, and the distributed generation unit is connected in parallel with the external network to smooth out the peak consumption.

The peak load values of the transceiver radio station can be reduced by optimizing the performance of the communication equipment. The most effective way to reduce power consumption during peak hours is the use of adaptive radio links with a gradation of the output signal power up to 12.5% of the maximum. Additionally, preliminary preparation of individual components of communication equipment allows to smooth the peak power consumption of the transceiver radio station.

In general, smoothing the peak load values of transceiver radio stations using distributed generation and optimizing the operation of communication equipment will reduce the load on the Unified Energy System of the Russian Federation and will contribute to the introduction of energy-efficient small-scale power generation.

Kosarev B.A., Krivaltsevich S.V. Application of distributed power generation to reduce the load on power supply systems of radio stations during peak periods. Radiotekhnika. 2021. V. 85. № 10. P. 137−148. DOI: https://doi.org/10.18127/j00338486-202110-13  (In Russian)

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