Generic dynamic load models in long-term voltage stability studies

被引:10
作者
Borghetti, A [1 ]
Caldon, R [1 ]
Nucci, CA [1 ]
机构
[1] Univ Bologna, Dipartimento Ingn Elettr, I-40136 Bologna, Italy
关键词
voltage stability; load models; power system simulations;
D O I
10.1016/S0142-0615(99)00063-0
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
The aim of this paper is to examine up to what extent the so-called generic non-linear dynamic (GNLD) load models can replace a more detailed representation of aggregate load, including induction motors, thermostatically controlled and static loads, in long-term voltage stability simulations. In the first part of the paper the main characteristics of the GNLD models are compared with those of more detailed models considered as 'reference'. It is concluded that the long-term instability phenomena are closely reproduced, in most cases, by using the GNLD model. The accuracy of the GNLD reproduction depends on the load characteristics, the type of phenomena that have to be reproduced and the position of the load in the network. Short-term instability phenomena solely due to induction motor dynamics might not be reproduced with adequate accuracy by GNLD models that are characterised by an inherent de-coupling of active and reactive power. Further, the possibility of including on load tap changer transformer into GNLD models is investigated and accomplished. These considerations are illustrated by adopting as case study a network often used in the literature. (C) 2000 Published by Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:291 / 301
页数:11
相关论文
共 31 条
[1]  
[Anonymous], P NSF ECC WORKSH BUL
[2]  
[Anonymous], VOLTAGE STABILITY EL
[3]   Dynamic equivalents of tap-changing-under-load transformers in a transmission system [J].
Aresi, R ;
Delfino, B ;
Denegri, GB ;
Invernizzi, M ;
Massucco, S .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 1999, 146 (01) :45-52
[4]   On undervoltage load shedding in power systems [J].
Arnborg, S ;
Andersson, G ;
Hill, DJ ;
Hiskens, IA .
INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS, 1997, 19 (02) :141-149
[5]  
BORGHETTI A, 1997, IEEE T POWER SYST, V12, P193
[6]  
CALDON R, 1991, MODEL CONSTRUCTION P, P89
[7]  
CIGRE TF, 1995, ELECTRA, V163, P151
[8]   VOLTAGE COLLAPSE PRECIPITATED BY THE IMMEDIATE CHANGE IN STABILITY WHEN GENERATOR REACTIVE POWER LIMITS ARE ENCOUNTERED [J].
DOBSON, I ;
LU, LM .
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-FUNDAMENTAL THEORY AND APPLICATIONS, 1992, 39 (09) :762-766
[9]  
GRAF KM, 1989, P BULK POW SYST VOLT
[10]   Voltage stability: Significance of load characteristics and current limiters [J].
Gustafsson, MN ;
Krantz, NU ;
Daalder, JE .
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION, 1997, 144 (03) :257-262