NDLI: Optimization of dynamic reactive power reserve in weakly interconnected or islanded HVDC sending systems

Content Provider	IEEE Xplore Digital Library
Author	Jian Zhang Mingsong Liu Yonghua Yin Qi Wang Weifang Lin Liping Liu Yao Shao
Copyright Year	2014
Description	Author affiliation: China Electr. Power Res. Inst., Beijing, China (Jian Zhang; Mingsong Liu; Yonghua Yin; Qi Wang; Weifang Lin; Liping Liu; Yao Shao)
Abstract	Due to severe geographical conditions, limited investment and environmental pressure, HVDC sending systems are often weakly interconnected with main network, Sometimes HVDC sending systems may even operate in islanded mode. Over-voltage/low-voltage after large disturbances becomes a serious problem. Static over-voltage/low-voltage problem in weakly interconnected or islanded HVDC sending systems is studied in this paper. An optimization method for dynamic reactive power reserve based on quasi-steady state sensitivity is proposed. Firstly, sensitivities of generator reactive power and bus voltage to reactive power disturbance are derived. Secondly, a method to calculate voltage variations with a sensitivity method considering HVDC transmission systems is put forward. Thirdly, system effective dynamic reactive power reserve is defined and deduced. Fourthly, an optimization model and process for dynamic reactive power reserve is come up with. Finally, the proposed algorithm is tested on a practical power grid. Simulation results demonstrate its effectiveness and feasibility.
Sponsorship	IEEE Sapporo Sect.
Starting Page	1681
Ending Page	1685
File Size	105338
Page Count	5
File Format	PDF
ISBN	9781479931965
e-ISBN	9781479931972
DOI	10.1109/InfoSEEE.2014.6946208
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-04-26
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	HVDC sending system Reactive power Sensitivity HVDC transmission Simulation Power system dynamics Quasi-steady state sensitivity Dynamic reactive power reserve Islanded mode Generators Optimization
Content Type	Text
Resource Type	Article

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