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Synchronous generator load angle estimation

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3 Author(s)
Cucek, H. ; Fac. of Electr. Eng. & Comput., Univ. of Zagreb, Zagreb, Croatia ; Sumina, D. ; Svigir, N.

In the paper is proposed a load angle estimation method for synchronous generators. The estimation method is based on synchronous generator corresponding voltage-current vector diagram and parameters of generator, transformer and transmission lines. In addition measurement of the load angle is presented. The estimation results were compared with the measured ones. The estimation method gives satisfactory accuracy for load angles less then 120° el. Although the load angle is a key variable for generator stability, it is rarely used as a variable in excitation control system, because the measurement problems. Hence, this estimation method has a wide area of application in excitation systems for control algorithm and to provide stabile work of synchronous generator in capacitive operating area.

Published in:

MELECON 2010 - 2010 15th IEEE Mediterranean Electrotechnical Conference

Date of Conference:

26-28 April 2010