NDLI: Effect of the coupling between hydraulic turbine set and power grid on power grid dynamic stability

Content Provider	IEEE Xplore Digital Library
Author	Xin Jianbo Han Zhiyong He Renmu
Copyright Year	2009
Description	Author affiliation: Jiangxi Provincial Electric Power Research Institute, Nanchang, China (Xin Jianbo) \|\| Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control of Ministry of Education, North China Electric Power University, Beijing, China (Han Zhiyong; He Renmu)
Abstract	With the proportion of hydroelectric power station in power grid and the single-turbine capacity larger and larger, the effect of hydraulic turbine set on power system dynamic stability will be more significant. The power oscillation phenomenon, which affects the safe and stable operation of power system, occurred many times in China. For example, on October 29th, 2005, low frequency oscillation occurred in Central China Power Grid. The most of researches on the hydraulic turbine system and power system were carried out independently in the past. First, according to the physical characteristics of the draft tube hydraulic system, the hydraulic turbine set model considering the draft tube hydraulic pressure dynamic was established in this paper. Secondly, based on the single machine infinite bus system, the effect of draft tube hydraulic pressure pulsation on the power grid dynamic security and stability was studied and the coupling between the hydraulic turbine set and power grid was investigated. Thirdly, taking Zhelin Hydropower Plant in Jiangxi Power Grid as an example, the influence of the draft tube hydraulic pressure pulsation to power grid stability was illustrated in this paper. The loads of unit 5, 6 at Zhelin hydropower station have a wide range of vortex operating conditions, about 20~100MW. In this case, the vortex frequency will enhance as the loads of vortex operation conditions increase.
Starting Page	1
Ending Page	5
File Size	323533
Page Count	5
File Format	PDF
ISBN	9781424449347
DOI	10.1109/SUPERGEN.2009.5348381
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-06
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Power system dynamics Hydroelectric power generation Hydraulic Turbine Set Hydraulic systems Resonance Mechanism Power system stability Power grids Power system security Power system modeling Power Grid Hydraulic turbines Frequency Low Frequency Oscillation Power generation
Content Type	Text
Resource Type	Article

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