SIMULATION OF EFFICIENCY PROCESSES STABILIZATION OF PARAMETERS GDGS

Authors

  • H.G. DOSHCHENKO

DOI:

https://doi.org/10.32782/KNTU2618-0340/2021.4.1.10

Keywords:

electric power system, gas-diesel generator sets (GDGS), active power, control system

Abstract

The main sources of energy in ship power systems on most ships and drilling platforms are diesel generator sets with electronic diesel speed stabilization systems and digital load sharing systems between generators. A promising alternative to diesels are gas diesels (GD) using gas fuel with different chemical composition. To date, gas-diesel generator sets (GDGS) are being actively introduced into power plants, where their single operation is sufficient, that is, they have found application as single autonomous power supply systems. However, due to significant fluctuations in the rotation frequency of the main engine when the load on the main engine generator is changed and in parallel operation, oscillatory processes appear in the system, which significantly affect the performance of the units. The use of microprocessor systems and PID controllers to stabilize the rotation frequency of gas-diesel generator sets does not completely solve the problem of improving the quality of stabilization of the rotation frequency in a wide range of dynamic loads. To eliminate this drawback, it is necessary to study the operating modes of the gas-diesel generator sets, performed using various types of gas fuel and their mixtures. If there is a non-linear load on the generator, then obtaining the active component of the power becomes problematic. For this purpose, it is necessary to develop a model of the gas-diesel generator sets that allows solving the problems of distributing active power between generating sets and checking the efficiency of its distribution systems by modeling the process. This will make it possible to increase the efficiency of using gas-diesel generator sets at specific facilities and complexes of gas-diesel generator sets powered by associated gases produced during the period of drilling operations. This article solves the urgent problem of ensuring stable parallel operation of two or more gas-diesel generators as part of an autonomous electric power system of offshore drilling platforms and water transport facilities.

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Published

2023-08-08