40.6 Decentralised control: electronic turbine controllers

40.6.1 Introduction

The turbine equipped with a controller represents an important item of decentralised control as its controller governs the active power input to the power system. For many reasons, both historical and technical, this controller is kept separate from excitation control, although a computer would be able to fulfil the combined function.

Modern turbine controllers are electronic and have to meet a series of functions and requirements. Frequency control is just one of these; safety functions, monitoring, limit checking, etc., are equally important. The most important requirements are the following:

(1) automatic start-up and shut-down of the turbine;

(2) application ...

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