NDLI: Fast frequency evaluation using direct current loadflow

Content Provider	IEEE Xplore Digital Library
Author	Chang-gang Li Yu-tian Liu Heng-xu Zhang
Copyright Year	2009
Description	Author affiliation: School of Electrical Engineering, Shandong University, Jinan 250061, China (Chang-gang Li; Yu-tian Liu; Heng-xu Zhang)
Abstract	Frequency evaluation is an important but time-consuming task for power system operation. Conventional frequency response analysis methods were not suitable for fast frequency evaluation (FFE) due to their weakness in heavy computation load or poor accuracy. A new direct current loadflow based power system frequency response analysis method (DFR) for FFE was proposed in this paper. It reduced complexity of models by neglecting the impact of reactive power-voltage dynamics on active power-frequency dynamics. Generating units were simplified by adopting the assumption of constant terminal voltages while the network was simplified with direct current loadflow. An example of Fujian power grid in China was given to verify the usability of DFR in FFE. Simulation results show that the new method can reflect frequency dynamics with adequate accuracy and low computation load.
Starting Page	1
Ending Page	4
File Size	696809
Page Count	4
File Format	PDF
ISBN	9781424449347
DOI	10.1109/SUPERGEN.2009.5348347
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	HVDC transmission Power system dynamics Power grids Direct current loadflow Power system modeling Power system interconnection Power system simulation Power system analysis computing Fast frequency evaluation Frequency response DC generators Power systems Power generation
Content Type	Text
Resource Type	Article

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