Fundamentals of power systems modelling in the presence of converter-interfaced generation

This paper presents an overview of the integration of renewable energy resources in the urban sector. The article also describes the current global energy demand and growth challenges that the world is currently facing. The literature survey on the global energy scenario and renewable energy integration, which mainly involves solar photovoltaic (PV) and battery energy storage systems (BESS), is presented. The paper also addresses the different contexts of using renewable energy resources (RERs) and grid-connected applications. It develops the concept of PV energy storage integration in commercial building applications. Since the common RERs such as wind and solar vary according to seasonal and geographic locations, an outline of the energy storage system that provides a platform for optimal use of RERs is also presented. This structure refers to their ability and dynamic structure that can combine with the renewable power generation to maximise the use of RERs and to ensure the total energy supply to the load. It was observed that the integration of distributed energy resources (DERs) which are connected to the grid is beneficial when the PV and energy storage system (ESS) are smartly mixed with the utility grid. The primary purpose of this energy mix is to assist in improving the dynamic performance of any electrical network operating in a commercial building setup. Thus, this research work analyses the possibility of designing dynamic behaviour for energy management for commercial building applications in South Africa.

An overview of renewable energy resources and grid integration for commercial building applications

Review of power system impacts at high PV penetration Part II: Potential solutions and the way forward

Spatio-temporal information based protection scheme for PV integrated microgrid under solar irradiance intermittency using deep convolutional neural network

World leaders and scientists have been putting immense efforts to strengthen energy security and reducing greenhouse gas (GHG) emissions by meeting growing energy demand for the last couple of decades. Their efforts accelerate the need for large-scale renewable energy resources (RER) integration into existing electricity grids. The intermittent nature of the dominant RER, e.g., solar photovoltaic (PV) and wind systems, poses operational and technical challenges in their effective integration by hampering network reliability and stability. This article reviews and discusses the challenges reported due to the grid integration of solar PV systems and relevant proposed solutions. Among various technical challenges, it reviews the non-dispatch-ability, power quality, angular and voltage stability, reactive power support, and fault ride-through capability related to solar PV systems grid integration. Also, it addresses relevant socio-economic, environmental, and electricity market challenges. Finally, it highlights the proposed solution methodologies, including grid codes, advanced control strategies, energy storage systems, and renewable energy policies to combat the discussed challenges. The findings of this article assist the power system scholars and researchers in conducting further research in this field. Furthermore, it helps the decision-makers to choose the appropriate technologies to deal with the anticipated challenges associated with the grid integration of PV systems. 

Hermanus Lambertus Reyneke van der Walt

Papers

PV based distributed generation power system protection: A review

Maintaining overcurrent protection in a PV‐based distributed generation power systems