Effects of the Photovoltaic Distributed Generation on Electricity Distribution System Voltage - Updated Review

Abstract

Concerns about the environment and a growing demand for electricity have led to the intensive search for renewable energy sources. Photovoltaic solar energy, in the form of distributed generation, has shown a very high growth rate to an extent that in some regions it will be adopted on a large scale, thus being responsible for the supply of a significant portion of the load of this region. Some factors have favored the adoption of distributed generation: the drop in the price of solar panels and inverters, as well as its easy installation and maintenance. However, the largescale adoption of solar distributed generation brings new challenges to the power distribution system. Network voltage control is an example. In conventional systems, voltage control is a properly addressed problem, but in networks with the presence of distributed generation, where at certain times of the day reverse energy flows can be observed, more detailed studies on voltage behavior are necessary concerning the power quality. This article makes an analysis of relevant studies on the effects that the insertion of photovoltaic distributed generation can cause in the voltage of the electric power distribution system under the optics of two phenomena: the fluctuation and the voltage ripple.

Potencia máxima de inyección de un sfcr como generación distribuida en la ciudad de Juliaca con el software Etap

“…Por otro lado, cuando observamos la ubicación del SFCR cuando está cerca a la subestación llega a alcanzar 101.4% pero no llega a ser tan determinante. Realizando una comparación con un estudio similar en donde se determina que efectivamente cuando se inyecta SFCR a gran escala, puede traer desafíos técnicos para el control de voltaje en las redes de distribución (Melo et al, 2018).…”

Power Quality Impacts of PV Systems Integration on Petroleum Development Oman (PDO) - Mina Al-Fahal (MAF) Distribution Network

“…Moreover, with grid-connected solar PV systems, networks become active by exporting and importing power from and to the grid. Rapid fluctuations in solar irradiation subject to the passing of clouds may result in voltage fluctuations/unbalance problems as discussed in [22].…”

Combined ANFIS–Wavelet Technique to Improve the Estimation Accuracy of the Power Output of Neighboring PV Systems during Cloud Events

“…Long-term variability can be easily planned for based on the well-known daily and seasonal solar irradiance in various geographical areas. On the other hand, short-term irradiance fluctuation due to the unexpected passing of clouds of unknown size, direction and speed, may result in frequency instability due to the reduction in the generated power [4][5][6]. Estimating such power is one of the main challenges faced by network operators to prevent frequency instability due to such short-term power reduction, which is why many adopt a suitable backup energy storage system.…”

“…Estimating such power is one of the main challenges faced by network operators to prevent frequency instability due to such short-term power reduction, which is why many adopt a suitable backup energy storage system. According to utilities guidelines, the PV system's power output the reduction in the generated power [4][5][6]. Estimating such power is one of the main challenges faced by network operators to prevent frequency instability due to such short-term power reduction, which is why many adopt a suitable backup energy storage system.…”