A Case Study on Distributed Energy Resources and Energy-Storage Systems in a Virtual Power Plant Concept: Technical Aspects

Energies

Magdalena Węglarz¹  Edyta Ropuszyńska-Surma¹  Michal Jasiński²  Marian Sobierajski²  Dominika Kaczorowska²  Robert Lis²  Jacek Rezmer²  Tomasz Sikorski²  Paweł Kostyla²  Wilhelm Rojewski²  Beata Solak²  Jarosław Szymańda²  Zbigniew Leonowicz²  Daniel Bejmert³  Przemysław Janik³ 

[1] Faculty of Computer Science and Management, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland;Faculty of Electrical Engineering, Wroclaw University of Science and Technology, 50-370 Wrocław, Poland;TAURON Ekoenergia Ltd., 58-500 Jelenia Góra, Poland;

关键词: virtual power plant;    distributed energy resources;    energy storage systems;    grid codes;    power systems;    smart grids;   

DOI  :  10.3390/en13123086

来源: DOAJ

【 摘 要 】

The article presents calculations and power flow of a real virtual power plant (VPP), containing a fragment of low and medium voltage distribution network. The VPP contains a hydropower plant (HPP), a photovoltaic system (PV) and energy storage system (ESS). The purpose of this article is to summarize the requirements for connection of generating units to the grid. Paper discusses the impact of the requirements on the maximum installed capacity of distributed energy resource (DER) systems and on the parameters of the energy storage unit. Firstly, a comprehensive review of VPP definitions, aims, as well as the characteristics of the investigated case study of the VPP project is presented. Then, requirements related to the regulation, protection and integration of DER and ESS with power systems are discussed. Finally, investigations related to influence of DER and ESS on power network condition are presented. One of the outcomes of the paper is the method of identifying the maximum power capacity of DER and ESS in accordance with technical network requirements. The applied method uses analytic calculations, as well as simulations using Matlab environment, combined with real measurement data. The obtained results allow the influence of the operating conditions of particular DER and ESS on power flow and voltage condition to be identified, the maximum power capacity of ESS intended for the planed VPP to be determined, as well as the influence of power control strategies implemented in a PV power plant on resources available for the planning and control of a VPP to be specified. Technical limitations of the DER and ESS are used as input conditions for the economic simulations presented in the accompanying paper, which is focused on investigations of economic efficiency.

【 授权许可】

Unknown