A new approach to real time measurement of power angles of generators at different locations for stability control

Author

Chen, Yunping ; Zhang, Chengxue ; Hu, Zhijian ; Wang, Xurui

Author_Institution

Sch. of Electr. Eng., Wuhan Univ. of Hydraulic & Electr. Eng., China

Volume

2

fYear

2000

fDate

2000

Firstpage

1237

Abstract

It is important to realize real time measurement of the bus voltage phasor of substations and the power angles of generators at different locations for stability control. Traditionally, EMS uses the data of bus voltages, line currents and phase angle between them to calculate the power angles of generators. This is an indirect method. The calculation time of the method is too long to be used in real-time control. A new method based on GPS is proposed in the paper which can not only measure the bus voltages and currents phasor of substations, generators at different locations, but also the power angles of generators in operation. The principle and realization are discussed in the paper. Theoretical analysis and experimental results prove that the new measurement method is correct and effective

Keywords

Global Positioning System; electric current measurement; power measurement; power system control; power system stability; synchronous generators; voltage measurement; EMS; GPS; bus currents phasor measurement; generator power angles measurement; indirect method; line currents; phase angle; real time measurement; real-time control; stability control; substation bus voltage phasor; synchronous generators; Current measurement; Electric variables measurement; Force measurement; Goniometers; Power generation; Power measurement; Power system stability; Substations; Synchronous generators; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Winter Meeting, 2000. IEEE

Print_ISBN

0-7803-5935-6

Type

conf

DOI

10.1109/PESW.2000.850123

Filename

850123