Fast generation shedding equipment based on the observation of swings of generators

Author

Takahashi, M. ; Matsuzawa, K. ; Sato, M. ; Omata, K. ; Tsukui, R. ; Nakamura, T. ; Mizuguchi, S.

Author_Institution

Tokyo Electric Power Co., Japan

Volume

3

Issue

2

fYear

1988

fDate

5/1/1988 12:00:00 AM

Firstpage

439

Lastpage

446

Abstract

A novel method and recently developed stabilizing equipment to prevent the loss of synchronism of generators in pumped-storage plants due to spreading are presented. The method includes functions to estimate the swing of each generator by using online generator output sampled 600 times per second after an occurrence of a disturbance (such as a fault, faulty equipment, etc). Generator swing 200-300 milliseconds ahead and loss of synchronism between generators in pumped-storage plants and those in thermal and nuclear plants can be predicted 200-300 ms ahead, and the number of generators that must be shed to maintain stability can be decided

Keywords

electric generators; load shedding; nuclear power stations; power plants; power station load; pumped-storage power stations; disturbance; fast generation shedding equipment; generator swing; generator synchronism loss prevention; nuclear plants; pumped-storage plants; thermal power plants; Fault detection; Frequency synchronization; Nuclear power generation; Power generation; Power system faults; Power system stability; Power system transients; Power systems; Steady-state; Thermal stability;

fLanguage

English

Journal_Title

Power Systems, IEEE Transactions on

Publisher

ieee

ISSN

0885-8950

Type

jour

DOI

10.1109/59.192894

Filename

192894