Abstract

Small generation is constantly increasing both in Russia and around the world. At the same time, more and more urgent problems arise related to the loss of dynamic stability of rotating machines with low inertia of their rotors. The paper proposes one of the variants for solving this problem by fundamental transformation of the principles of small generation, taking into account the development of a flexible coupling between a turbine and a generator by using an electromagnetic gearbox instead of a connecting coupling. Investigations are carried out on a physical prototype of an electromagnetic gearbox with observation of real parameters.

Highlights

  • There is a constant growth of small generation in Russia and in the world

  • According to the International Energy Agency, the share of small generation will be about 75% of the total volume of new energy generation until 2030, while more than 30 GW of small generation is forecasted for Russia by 2035 [1]

  • When the total volumes of small generation become significant, this solution will be unacceptable, since it will lead to a high power unbalance

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Summary

Introduction

There is a constant growth of small generation in Russia and in the world. The implementation of small generation is always accompanied by the need to solve the problems of dynamic stability. When the total volumes of small generation become significant, this solution will be unacceptable, since it will lead to a high power unbalance. Despite the fact that many investigations are currently being carried out on ensuring the dynamic stability of small generation, this problem still does not have a universal solution. This happens because the main amount of investigations is aimed at mitigating the consequences of dynamic instability, but not the reason. Due to the heterogeneity of power systems, these methods cannot be universal, unique solutions should be developed for each specific case that significantly complicates the solution of the problem

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