NDLI: Characteristic model based micro-grid equivalent modeling

Content Provider	IEEE Xplore Digital Library
Author	Changchun, C. Deng Lihua Dai Weili Zhang Jianyong
Copyright Year	2014
Description	Author affiliation: Dept. of Mathes & Phys. Eng., Hohai Univ., Changzhou, China (Zhang Jianyong) \|\| Coll. of IOT Eng., Hohai Univ., Changzhou, China (Deng Lihua; Dai Weili)
Abstract	With the development of distributed and micro-grid technology, more and more micro-grid will connect into the power system. The dynamic simulation of distributed network should consider the affection of micro-grid. This paper proposes a micro-grid equivalent modeling method based on the characteristic model. The characteristic model can simplify the detailed model of micro-grid without missing the characteristic information under connected mode. Characteristic model is presented by a low-order time-varying difference equation and the difference equations are equal to the micro-grid dynamic characteristic. Voltage and power of the Point of Common Couple(PCC) are collected for the input and output of the characteristic model respectively. Recursive damped least square algorithm is used for the parameter estimation and the measured vector is normalized for improving the convergence of the algorithm. An micro-grid system is built for the simulation of micro-grid in DIgSILENT, and simulation results show that the dynamic equivalent based on characteristic model can well describe the dynamic characteristic of the detailed model of micro-grid, and the modeling method is validity.
Starting Page	3035
Ending Page	3040
File Size	708931
Page Count	6
File Format	PDF
ISBN	9781479950324
DOI	10.1109/POWERCON.2014.6993540
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-20
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mathematical model Power system dynamics Distributed power generation Load modeling Analytical models Integrated circuit modeling Recursive Damped Least Square Algorithm Equivalent Modeling Characteristics Model Micro-grid Power System Simulation
Content Type	Text
Resource Type	Article

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