ABSTRACT
WLADYSLAW MIELCZARSKI*1 and ANTONI M. ZAJACZKOWSKI2
1 Monash University, Department of Electrical and Computer Systems Engineering, Centre for Electrical Power Engineering Clayton, Victoria 3168, Australia 2 Optimal Control Laboratory, Department of Fundamental Research in Electrical Engineering, Institute of Electrical Engineering, Warsaw, Poland
1.1. INTRODUCTION
Power systems belong to the largest systems constructed by our civilization. Electrical energy supply is a complex task consisting of three major steps: generation, transmission and distribution. Limiting energy storage capability of power systems means that the supply has to meet constantly changing demand in every second. Power generation is an example of complex electromechanical systems in which energy from fuels as coal, oil or gas is converted into electrical energy in a system: boiler-steam turbinesynchronous generator. Large thermal power generating units cannot rapidly react on increasing demand so the problem of balance between mechanical and electrical powers on a shaft of a unit steam turbine - generator is one of the most important problems for power systems engineers.
