Multi-machine power system state-space modelling for small-signal stability assessments

被引:15
作者
Ugalde-Loo, Carlos E. [1 ]
Acha, Enrique [2 ]
Liceaga-Castro, Eduardo [3 ]
机构
[1] Cardiff Univ, Sch Engn, Inst Energy, Cardiff CF10 3AX, S Glam, Wales
[2] Tampere Univ Technol, Dept Elect Engn, FIN-33101 Tampere, Finland
[3] Univ Autonoma Nuevo Leon, Fac Ingn Mecan & Elect, CIIIA, Nuevo Leon, Mexico
基金
英国工程与自然科学研究理事会;
关键词
State-space representation; Multi-machine systems; Mathematical modelling; Computational software; FACTS-BASED STABILIZERS; INSTALLING LOCATIONS; FEEDBACK SIGNALS; ZEROS; OSCILLATIONS; EIGENVALUE; SELECTION; DESIGN; MATRIX; POLES;
D O I
10.1016/j.apm.2013.05.047
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This work presents a general state-space representation of a multi-machine, multi-order power system model, which may be used to carry out small-signal stability assessments. Computational software coded in MATLAB has been developed in order to find and analyse the solution of an arbitrary number of synchronous generators in the network. Each generator is represented by a pre-defined model. The model choice is tailored to fit the available data for each generator. The software has provisions for conducting power flow solutions and the calculation of the initial state that the generators keep prior to the disturbance. The state-space representation and the equivalent transfer function matrix of the system are generated automatically. Eigenvalue analysis may be carried out using the standard MATLAB functionality. The paper is one of a tutorial nature and in order to check on the sanity of the results given by the new software, two text-book networks have been examined. The results were also compared with those generated using commercial industrial-grade software. (C) 2013 Elsevier Inc. All rights reserved.
引用
收藏
页码:10141 / 10161
页数:21
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