Optimal placement of distributed generation: An overview and key issues

Abstract

Distributed Generation is the generation of electricity from many small energy sources and is located closer to the user, or customer. The purpose of using distributed generation is to improve voltage profile, voltage stability and to minimize power losses. This paper presents an overview of research and development work carried out in the field of Distributed Generation. This paper also discusses the key issues related to optimal placement and size of distributed generation. Types of distributed generation, technology used for distributed generation and related terms are also discussed.

Ubicación y dimensionamiento de generación distribuida: Una revisión

“…Los impactos positivos son llamados beneficios de apoyo al sistema, dentro de los que se pueden encontrar mejoras en los perfiles de tensión, reducción de pérdidas de energía en la red (debido al transporte) y descongestión de las líneas. Sin embargo, una ubicación o dimensionamiento inapropiado de la GD en el sistema puede generar problemas técni-cos, como perfiles de tensión por fuera de los rangos permitidos, fluctuaciones de tensión y violación de los límites de capacidad en las líneas [24]- [27]. En [28] se presentan sus principales desventajas, entre las cuales se encuentran el aumento en los niveles de falla debido a la generación intermitente, los flujos bidireccionales, la coordinación de protecciones (que están diseñadas para flujos unidireccionales), congestiones en la red y fluctuaciones de voltaje (variaciones en el índice de estabilidad).…”

Voltage sensitivity analysis to determine the optimal integration of distributed generation in distribution systems

“…The integration of DG in distribution network has increased rapidly [1], since the possibility of generating power close to consumers, reducing power losses, increasing voltages, improving reliability, and others [2], [3]. However, the large penetration of electric sources brings stability problems [4], [5].…”

Real-time simulation of renewable energy transactions in microgrid context using real hardware resources

“…Nowadays, power distribution systems have been faced with massive integration of Distributed Energy Resource (DER) and Distributed Generation (DG) units in order to reach more energy security, less energy costs and less greenhouse gas emissions [1]. DG is defined as small power generation units that can be located in the demand side [2]- [3]. The most important applications of the DG units consist of providing high level of reliability, controlling of the voltage and reactive power, and reducing the pressure from the transmission lines [2].…”