NDLI: A modified Levenberg-Marquardt approach to explore the limit operation state of AC/DC hybrid system

Content Provider	IEEE Xplore Digital Library
Author	Jia Cao Zheng Yan Xiaoyuan Xu
Copyright Year	2015
Description	Author affiliation: Dept. Of Electr. Eng., Shanghai Jiao Tong Univ., Shanghai, China (Jia Cao; Zheng Yan; Xiaoyuan Xu)
Abstract	This paper is concerned with the limit operation state of AC/DC hybrid system based on the alternate iterative method to solve the AC/DC power flow. A modified Levenberg-Marquardt (LM) method is employed to solve the nonlinear equations of AC power flow and DC equations, respectively. Then, the heavy load system is constructed by expanding the same times of real and reactive load to explore the limit operation state. Simulation results show that modified LM method has good convergent property to solve the nonlinear equations, especially for the heavy load system. Also, when the expanding times of load exceeds the maximal times of load withstood by Newton method, there exists no solution obtained by Newton method, while the least square solutions obtained by LM method can provide useful information for Newton method to take some measurements on weak nodes to enlarge the scope of the limit operation state.
Starting Page	1
Ending Page	5
File Size	1149622
Page Count	5
File Format	PDF
ISBN	9781467380409
DOI	10.1109/PESGM.2015.7285610
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-07-26
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Indexes Mathematical model Robustness Voltage control newton method ac/dc power flow alternate iterative method limit operation state modified levenberg-marquardt method
Content Type	Text
Resource Type	Article

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