DocumentCode :
2614360
Title :
HVDC supplementary controller based on synchronized phasor measurement units
Author :
Huang, Ying ; Xu, Zheng
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China
fYear :
2004
fDate :
10-13 Oct. 2004
Firstpage :
668
Abstract :
The fast response characteristics of HVDC system can be used efficiently to damp inter-area low frequency oscillation without additional equipments. Phasor measurement unit (PMU) based on Global Positioning System (GPS) is new measurement equipment with high accuracy. It can obtain the phasors of bus voltages, especially the voltage phase angles, so it is possible to utilize PMU to improve control effect. In this paper, a novel HVDC supplementary controller based on PMU is proposed. The input signal of this controller is the voltage phase angle difference between two areas, which can reflect the inter-area low frequency oscillation characteristics effectively. Small signal stability and transient stability of a two-area, four-machine AC/DC test system are studied. The analysis results show that the proposed controller is capable of damping the system´s low frequency oscillation and enhancing the AC system´s transfer capability over a wide range of operating conditions.
Keywords :
Global Positioning System; HVDC power transmission; controllers; power system measurement; power system transient stability; power transmission control; stability; synchronisation; GPS; HVDC supplementary controller; PMU; four-machine AC-DC test system; frequency oscillations; global positioning system; high-voltage direct current; phasor measurement unit; transfer capability; transient stability; voltage phase angle; Control systems; Damping; Frequency synchronization; Global Positioning System; HVDC transmission; Phasor measurement units; Position measurement; Stability; System testing; Voltage control;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Systems Conference and Exposition, 2004. IEEE PES
Print_ISBN :
0-7803-8718-X
Type :
conf
DOI :
10.1109/PSCE.2004.1397551
Filename :
1397551
Link To Document :
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