Grid Integration of Renewable Energy Conversion Systems

Dear Colleagues,

Renewable energy conversion systems will play an important role in the ongoing energy transition process, aiming to meet the future zero net emission goals for sustainable development. Renewable energy from different sources such as the sun, wind, currents, and waves may cover a substantial proportion of the growing energy demand. However, the integration of renewable energy sources into the grid can bring additional challenges related to grid stability, continuous electrical power supply, and safe operation of the grid. Different approaches can be used at each resource level, such as control at the energy conversion system level, collaborative control within a farm of energy converters, and the use of eventual complementarity between different energy sources to tackle eventual spatial and temporal variability. Various energy storage systems can be used to ensure continuous power supply, power quality, and grid stability. This Special Issue aims to present the current state of the art in the areas of control of individual devices and their farms, as well as existing and novel hybrid power parks, the use of different energy storages, and their capacity to cover power and energy demands.

Dr. Irina Temiz
Dr. Janaína Gonçalves De Oliveira
Dr. Cecilia Boström
Guest Editors

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• renewable energy conversion systems
• hybrid and co-located power parks
• control strategies and optimization
• optimal operation for renewable integration
• optimal planning for renewable integration
• regulation strategies for renewable integration
• energy storage systems and their optimization

Title: Review on control strategies of offshore multi-source parks
Authors: Irina Temiz
Affiliation: none
Abstract: none

Title: Development of a Cost-driven, Real-Time Management Strategy for e-Mobility Hubs including Islanded Operation
Authors: Marcelo O. Godinho, Wagner C. Leal, Euler Ribeiro, Beatriz B. Cardoso, Mauricio I. Dobes
Affiliation: CERTI Foundation
Abstract: The installation of electric vehicle supply equipment (EVSE) increases demand and peak loads, potentially straining existing energy distribution infrastructure. Dispersed and inadequately planned placement of charging points (CPs) can disrupt the electrical grid, surpass contracted demand thresholds, and require infrastructure upgrades, thereby incurring unfeasible costs for Distribution System Operators (DSOs). In this context, it is necessary to recognize the role of business models in enabling effective electrification of the transportation sector. In response to these challenges, this paper introduces a novel e-Mobility hub management strategy, tailored for implementation in the Brazilian context. The proposed strategy revolves around a microgrid configuration encompassing dispatchable and photovoltaic generation, a battery energy storage system (BESS), EVSE infrastructure, and local loads. Moreover, this centralized controller facilitates the implementation of dynamic pricing and demand-response mechanisms, integral to business models seeking to integrate EVSE into the distribution grid. To validate the efficacy of the proposed solution, hardware-in-the-loop (HIL) simulations of the microgrid system are conducted. These simulations, incorporating the centralized controller, serve as a tool for assessing system performance and viability before on-site equipment deployment. Finally, this paper concludes with the insights gleaned from test analysis and its discussion through a selection of the most expressive scenarios, including islanded and connected operation modes.