ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'CodigoInstitucion'. [20018] (severity 16) [SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '521971' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NOT NULL;]
SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '521971' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NOT NULL;

ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'CodigoInstitucion'. [20018] (severity 16) [SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '521971' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NULL;]
SELECT PublicObrasAutores.NumeroEmpleado, PublicObrasAutores.ApellidoPaterno, PublicObrasAutores.ApellidoMaterno, PublicObrasAutores.Nombre, PublicObrasAutores.NombreCompleto FROM PublicObrasAutores LEFT JOIN PublicObrasAutoresFil ON PublicObrasAutores.RefPublicacion = PublicObrasAutoresFil.RefPublicacion WHERE PublicObrasAutores.RefPublicacion = '521971' AND PublicObrasAutores.NumeroEmpleado IS NULL AND PublicObrasAutoresFil.CodigoInstitucion IS NULL;

ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'Institucion'. [20018] (severity 16) [SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = '521971']
SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = '521971'

ERROR:SQLSTATE[HY000]: General error: 20018 Invalid column name 'Institucion'. [20018] (severity 16) [SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = 521971 AND InstitucionPropia = 'S' UNION SELECT Adscripciones.Entidad FROM PublicacionesObras JOIN PublicObrasAutores ON PublicacionesObras.Identificador = PublicObrasAutores.RefPublicacion JOIN Adscripciones ON PublicObrasAutores.NumeroEmpleado = Adscripciones.NumeroEmpleado WHERE (PublicacionesObras.FechaPublicacion BETWEEN Adscripciones.FechaDesde AND Adscripciones.FechaHasta OR (PublicacionesObras.FechaPublicacion >= Adscripciones.FechaDesde AND Adscripciones.FechaHasta IS NULL)) AND PublicacionesObras.Identificador= 521971]
SELECT Institucion FROM PublicObrasAutoresFil WHERE RefPublicacion = 521971 AND InstitucionPropia = 'S' UNION SELECT Adscripciones.Entidad FROM PublicacionesObras JOIN PublicObrasAutores ON PublicacionesObras.Identificador = PublicObrasAutores.RefPublicacion JOIN Adscripciones ON PublicObrasAutores.NumeroEmpleado = Adscripciones.NumeroEmpleado WHERE (PublicacionesObras.FechaPublicacion BETWEEN Adscripciones.FechaDesde AND Adscripciones.FechaHasta OR (PublicacionesObras.FechaPublicacion >= Adscripciones.FechaDesde AND Adscripciones.FechaHasta IS NULL)) AND PublicacionesObras.Identificador= 521971

Título del libro: Proceedings - 2019 Ieee International Conference On Environment And Electrical Engineering And 2019 Ieee Industrial And Commercial Power Systems Europe, Eeeic/i And Cps Europe 2019
Título del capítulo: Mitigating the impact of distributed generation and fault current limiter on directional overcurrent relay coordination by adaptive protection scheme

Autores UNAM:
CESAR ANGELES CAMACHO;

---

Autores externos:

---

Idioma:
Inglés

---

Año de publicación:
2019

---

Palabras clave:

Distributed power generation; Electric power transmission networks; Evolutionary algorithms; Fault current limiters; Optimization; Relay protection; Smart power grids; Adaptive protection schemes; Adverse effect; Bus systems; Directional over-current relays; High costs; Maximum load; Multi objective algorithm; Smart grid; Overcurrent protection

---

Resumen:

Overcurrent protection principle are mostly coordinated offline according to maximum load and fault currents on dominant topology. However, the traditional networks have been evolving gradually toward reliable and sustainable Smart Grid (SG) in which Distributed Generation (DG) (whether its coal based or renewable) is a vital component. Challenges have come along with advantages of DGs on protective relays such as coordination loss, which leads to several researching proposals to mitigate the impacts of DGs in modern networks. One of the many is the use of Fault Current Limiter (FCL) to lessen DG impacts, but since FCLs come with high cost to completely restore protective relay performance. Adaptive Protection Scheme (APS) exploiting the advance features of SG appear as an efficient solution to confront new challenges related to DGs and FCLs. The impacts of DGs and FCLs before and after employing APS are presented using the interconnected 6 bus system. Results have shown that APS can adequately integrate both DGs and FCLs with no adverse effects. © 2019 IEEE.

---

Entidades citadas de la UNAM:

---

Fuente:


ISBN:
9781728106526
Editorial:
Institute of Electrical and Electronics Engineers Inc.

Tipo de producto:
Conference Paper

DOI:
10.1109/EEEIC.2019.8783846