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Modelling of electrical power systems for power flow analysis

Abstract

The industry systems in Brazil are responsible for a consumption of over 50% (fifty per cent) of the total electrical power generated: therefore, they are import loads in power flow studies, and their modeling should be as much the best. Usually, in power flow studies, the industry systems are modeled by taking the influence of the power (active and reactive) and of the current on the voltage into account. Since the inducting motors, within the industry systems, represent at least 50% (fifty per cent) of the power consumption, and a large part of them is oversize, it is proposed to represent the industry systems as a function of the characteristic of power on shaft versus voltage into account. Since the induction motors, within the industry systems, represent at least 50% (fifty per cent) of the power consumption, and a large part of them is oversized, it is proposed to represent the industry systems as a function of the characteristics of power on shaft versus voltage for the analysis of power systems, aiming a load flow study. Thereafter, a model of an equivalent motor which has a basis the typical performance curve of an induction motor is present. This model is  More>>
Authors:
Cogo, Joao Roberto [1] 
  1. Escola Federal de Engenharia de Itajuba, MG (Brazil)
Publication Date:
Dec 31, 1994
Product Type:
Conference
Report Number:
ETDE-BR-0029; CONF-9405393-
Reference Number:
SCA: 240100; PA: BR-98:0R0005; EDB-98:082329; SN: 98001979822
Resource Relation:
Conference: 4. SEPOPE: symposium of specialists in electric operational and expansion planning, 4. SEPOPE: simposio de especialistas em planejamento da operacao e expansao eletrica, Belo Horizonte (Brazil), 23-27 May 1994; Other Information: PBD: 1994; Related Information: Is Part Of Technical papers presented at the 4. symposium of specialists in electric operational and expansion planning. v. 2; PB: 351 p.; Artigos tecnicos apresentados no 4. simposio de especialistas em planejamento da operacao e expansao eletrica. v. 2
Subject:
24 POWER TRANSMISSION AND DISTRIBUTION; RELIABILITY; OPERATION; POWER SYSTEMS; ELECTRIC MOTORS; TRANSFORMERS; INDUSTRIAL PLANTS; COMPUTERIZED SIMULATION; PERFORMANCE
OSTI ID:
659463
Research Organizations:
Itaipu Binacional, Foz do Iguacu, Puerto Rico (Brazil); ELETROBRAS, Rio de Janeiro, RJ (Brazil)
Country of Origin:
Brazil
Language:
English
Other Identifying Numbers:
Other: ON: DE98765511; TRN: BR98R0005
Availability:
OSTI as DE98765511
Submitting Site:
BR
Size:
pp. 19-24
Announcement Date:

Citation Formats

Cogo, Joao Roberto. Modelling of electrical power systems for power flow analysis. Brazil: N. p., 1994. Web.
Cogo, Joao Roberto. Modelling of electrical power systems for power flow analysis. Brazil.
Cogo, Joao Roberto. 1994. "Modelling of electrical power systems for power flow analysis." Brazil.
@misc{etde_659463,
title = {Modelling of electrical power systems for power flow analysis}
author = {Cogo, Joao Roberto}
abstractNote = {The industry systems in Brazil are responsible for a consumption of over 50% (fifty per cent) of the total electrical power generated: therefore, they are import loads in power flow studies, and their modeling should be as much the best. Usually, in power flow studies, the industry systems are modeled by taking the influence of the power (active and reactive) and of the current on the voltage into account. Since the inducting motors, within the industry systems, represent at least 50% (fifty per cent) of the power consumption, and a large part of them is oversize, it is proposed to represent the industry systems as a function of the characteristic of power on shaft versus voltage into account. Since the induction motors, within the industry systems, represent at least 50% (fifty per cent) of the power consumption, and a large part of them is oversized, it is proposed to represent the industry systems as a function of the characteristics of power on shaft versus voltage for the analysis of power systems, aiming a load flow study. Thereafter, a model of an equivalent motor which has a basis the typical performance curve of an induction motor is present. This model is obtained from empirical parameters, surveyed from a population of over 1000 motors. (author) 3 refs., 1 fig., 4 tabs.}
place = {Brazil}
year = {1994}
month = {Dec}
}