An Efficient Voltage-Behind-Reactance Synchronous Machine Model For Multi-Scale Transients Using Shifted-Frequency Analysis

被引:0
|
作者
Bathini, Veerabrahmam [1 ]
Nagaraja, R. [1 ]
Parthasarathy, K. [2 ]
机构
[1] PRDC VTU Res Ctr, Power Syst, Bangalore, Karnataka, India
[2] PRDC Pvt Ltd, Power Syst, Bangalore, Karnataka, India
来源
2018 IEEE PES ASIA-PACIFIC POWER AND ENERGY ENGINEERING CONFERENCE (APPEEC) | 2018年
关键词
Dynamic Phasor; Electromagnetic Transients; Hilbert Transform; Shifted-Frequency Analysis; Synchronous Machines; Voltage-Behind-Reactance; SIMULATION;
D O I
暂无
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
In this paper, an efficient voltage-behind-reactance synchronous machine model using shifted frequency analysis for dynamic phasor based electromagnetic transients-type solution is presented by extending the earlier works. The proposed machine model has a constant equivalent admittance matrix for direct machine-network interface, thereby eliminating the expensive re-factorization of the network admittance matrix at every integration time step. This feature is realized by the use of numerical approximation of machine dynamic saliency and a linear predictor. Moreover, to achieve a higher degree of accuracy, an iterative procedure is included. The model is based on shifted-frequency analysis, which allows for precise and efficient simulation of multi-scale power system transients with a large integration time step. A number of case studies were conducted and the results demonstrated the superiority of the proposed model over traditional time domain models. The machine model is better suited to study power system operational dynamics, including fast network transients.
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页数:6
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