Abstract

A promising way to increase the technical and economic characteristics of standalone power supply systems is to incorporate renewable energy installations in their structure. This saves fuel and extends the operational life of diesel power stations. The most common option is a hybrid system with photovoltaic power stations incorporated into the local network of the diesel power station. This paper deals with the dependence of the deflection voltage and power losses in the electric power transmission line on the graphs of electrical loads, the parameters of elements of the power supply system, connection points and the capacity of distributed photovoltaic power stations. Research has been carried out on the common low-voltage power supply systems of the radial type (0.4 kV) with an installed capacity of up to 100 kW. The studies have been conducted by simulating the operating modes of hybrid power systems of various configurations. As a result of these studies recommendations to reduce losses and voltage variations in the network by selecting the power and photovoltaic power connection points have been put forward.

Highlights

  • Consumers' electrification is implemented by connecting them to the central power grid or by creating their own power station

  • Of particular interest is the stability of the voltage and losses in power transmission lines depending on the power ratio of diesel power stations (DPS) and PES, daily schedules of insolation and electricity consumption, photoelectric stations’ connection points to the autonomous electrical network and the type of inverter PES

  • We considered an autonomous power supply system of the radial type 0.4 kV characteristic of that used for the electrification of small settlements

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Summary

Introduction

Consumers' electrification is implemented by connecting them to the central power grid or by creating their own power station. Of particular interest is the stability of the voltage and losses in power transmission lines depending on the power ratio of DPS and PES, daily schedules of insolation and electricity consumption, photoelectric stations’ connection points to the autonomous electrical network and the type of inverter PES.

Results
Conclusion
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