On dynamic load models for voltage stability studies

被引：61
|
作者：
Borghetti, A [1 ]
Caldon, R [1 ]
Mari, A [1 ]
Nucci, CA [1 ]
机构：
[1] UNIV PADUA,DIPARTIMENTO INGN ELETTR,I-35131 PADUA,ITALY
来源：
IEEE TRANSACTIONS ON POWER SYSTEMS | 1997年 / 12卷 / 01期
关键词：
D O I：
10.1109/59.574950
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Appropriate modelling of dynamic loads is of primary importance in voltage stability studies. The paper deals with the modelling of a load consisting of a static load plus an aggregate of induction motors. The behavior of three simplified models for such a load configuration is compared. The three models are A) a generic non-linear dynamic model of the first order as proposed by Karlsson and Hill, B) a static exponential load plus a dynamic first-order model for the induction motors, C) a static exponential load plus a dynamic third-order model for the induction motors. A power system with a longitudinal structure is chosen as the case-study. It is shown that for the same perturbation (tripping of one of two high-voltage parallel lines) the simulation results are quite different from each other and, in certain cases, only the third-order dynamic model correctly predicts the voltage collapse phenomena at the load bus. An interpretation of the different behavior of the various models is given.
引用
收藏
页码：293 / 299
页数：7
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