NDLI: Stability enhancement of power system by controlling HVDC power flow through the same AC transmission line

Content Provider	IEEE Xplore Digital Library
Author	Basu, K.P.
Copyright Year	2009
Description	Author affiliation: Faculty of Engineering, Multimedia University Cyberjaya, Malaysia (Basu, K.P.)
Abstract	HVDC power transmission employing power electronic device provides a wide range of control in power transmission. Remote generators are sometimes used to supply power to infinite bus through a single circuit long ac transmission line. The system may loose stability after the clearance of a fault if the pre-fault power transfer or the fault clearance time is high. Simultaneous ac-dc power transfer through the transmission line may be used for power flow enhancement. It needs conversion of the line for simultaneous ac-dc power flow to keep the system stable with high values of pre fault power and fault clearance time. During the transient period after the clearance of the fault, ac power supply is kept off and the dc power flow is increased to produce a retarding torque to bring back the generator to its normal speed. HVDC current regulator having very fast control facility may be employed for this purpose. AC circuit breakers are then switched on and the ac power flow is resumed at its pre fault value without any oscillation. The power swing is low and the system is optimally damped at the end of first swing. If the augmentation facility of HVDC power controller is limited, proper governor control of remote generators may be used to reduce the total power flow and to maintain the dc power flow only. After the system becomes stable the ac power supply is switched-on and the power oscillation is minimized with HVDC power controller.
Starting Page	663
Ending Page	668
File Size	394437
Page Count	6
File Format	PDF
ISBN	9781424446810
DOI	10.1109/ISIEA.2009.5356370
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-10-04
Publisher Place	Malaysia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power supplies Fault clearing time HVDC transmission Power system control Power system stability Control systems Circuit faults Transient stability Dc power controller Load flow Power transmission lines Distributed parameter circuits Zigzag transformer Power generation Ac-dc power flow
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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