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POWER FREQUENCY CONTROL

POWER FREQUENCY CONTROL _____ 1 POWER FREQUENCY CONTROL 1. INTRODUCTION 2 2. SMALL SIGNAL ANALYSIS OF POWER SYSTEMS 5 3. STATIC PERFORMANCE OF SPEED CONTROL 6 4. THE POWER SYSTEM MODEL 8 5. THE RESET LOOP 11 6. POOL OPERATION 14 7. STATE-SPACE REPRESENTATION OF A TWO AREA SYSTEM 19 REFERENCES 23 POWER FREQUENCY CONTROL _____ 2 1. Introduction The general requirements for the operation of a POWER network are that the FREQUENCY and voltage be maintained within designated limits. FREQUENCY is a system-wide parameter in the steady state as a system (or a number of interconnected systems) has the same FREQUENCY throughout.

( ) Steam turbine, no reheat (2.2) + + + = RH RH T T T sT s T sT K G s 1 1 1 ( ) α Steam turbine, with reheat (2.3) W W T T sT sT G s K + − = 1 1 2 ( ) Hydro (2.4) These transfer functions also incorporate the generator representation where ∆PT (s) can also be considered to equal the Laplace transform of the electrical power output of the ...

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documents.uow.edu.au

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