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Electronics
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Grid Integration of Decentralized Generation Plants
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Grid Integration of Decentralized Generation Plants

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (31 December 2019) | Viewed by 17951

Special Issue Information

Dear Colleagues,

The grid integration of decentralized generation plants enables a decarbonization process and brings a new mix of generation types with different grid interfaces in the electrical power system. For the grid integration of decentralized generation units, either their power electronic or direct grid interfaces must provide system services to ensure a safe and reliable grid operation. This Special Issue focuses on the analysis, design, and implementation of grid integration, grid services, grid compatibility, grid-support and grid-forming properties of decentralized generation plants.

The subject areas of interest include, but are not limited to grid integration, power quality, grid services, grid compatibility, grid-support, and grid-forming properties as well as smart grid applications of power systems with the following:

  • Wind energy
  • Photovoltaics
  • Fuel cells
  • Energy storage
  • Microgrids in grid connection
  • Heat and power plants

Prof. Dr. Detlef Schulz
Guest Editor

Manuscript Submission Information

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Published Papers (3 papers)

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Research

18 pages, 1410 KiB  
Article
Short Circuit Characteristics of PEM Fuel Cells for Grid Integration Applications
by Florian Grumm, Marc Schumann, Carsten Cosse, Maik Plenz, Arno Lücken and Detlef Schulz
Electronics 2020, 9(4), 602; https://doi.org/10.3390/electronics9040602 - 1 Apr 2020
Cited by 16 | Viewed by 7246
Abstract
The reduction of greenhouse gas and pollutant emissions is a major issue in modern society. Therefore, environmentally friendly technologies like fuel cells should replace conventional energy generation plants. Today, fuel cells are used in households for CHP (combined heat and power) applications, for [...] Read more.
The reduction of greenhouse gas and pollutant emissions is a major issue in modern society. Therefore, environmentally friendly technologies like fuel cells should replace conventional energy generation plants. Today, fuel cells are used in households for CHP (combined heat and power) applications, for emergency power supply in many stationary applications and for the power supply of cars, buses and ships and emergency power supply of aircrafts. A significant challenge is the optimal electrical grid integration and selection of the appropriate grid protection mechanism for fuel cell applications. For this, the short circuit capability and behavior needs to be known. This paper gives a mathematical estimation of the short circuit behavior of fuel cells. Five main transient and dynamic phenomena are investigated. The impact of the main transient effect for the provision of additional short circuit energy is simulated, and the simulation is experimentally validated. For this purpose, a 25 c m 2 single cell consisting of a NafionTM 212 membrane and carbon cloth electrodes with a catalyst loading of 0 . 5 m g / c m 2 Pt is analyzed. The magnitude of the transient short circuit current depends on the operating point right before the short circuit occurs, whereas the stationary short circuit current of fuel cells is invariably about twice the operational current. Based on these results, a novel fuel cell model for the estimation of the short circuit behavior is proposed. Full article
(This article belongs to the Special Issue Grid Integration of Decentralized Generation Plants)
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16 pages, 1008 KiB  
Article
Framework Integrating Lossy Compression and Perturbation for the Case of Smart Meter Privacy
by Maik Plenz, Chaoyu Dong, Florian Grumm, Marc Florian Meyer, Marc Schumann, Malcom McCulloch, Hongjie Jia and Detlef Schulz
Electronics 2020, 9(3), 465; https://doi.org/10.3390/electronics9030465 - 10 Mar 2020
Cited by 6 | Viewed by 2369
Abstract
The encoding of high-resolution energy profile datasets from end-users generated by smart electricity meters while maintaining the fidelity of relevant information seems to be one of the backbones of smart electrical markets. In the end-user sphere of smart grids, specific load curves of [...] Read more.
The encoding of high-resolution energy profile datasets from end-users generated by smart electricity meters while maintaining the fidelity of relevant information seems to be one of the backbones of smart electrical markets. In the end-user sphere of smart grids, specific load curves of households can easily be utilized to aggregate detailed information about customer’s daily activities, which would be attractive for cyber attacks. Based on a dataset measured by a smart meter installed in a German household, this paper integrates two complementary approaches to encrypt load profile datasets. On the one hand, the paper explains an integration of a lossy compression and classification technique, which is usable for individual energy consumption profiles of households. On the other hand, a perturbation approach with the Gaussian distribution is used to enhance the safety of a large amount of privacy profiles. By this complete workflow, involving the compression and perturbation, the developed framework sufficiently cut off the chance of de-noising attacks on private data and implement an additional, easy-to-handle layer of data security. Full article
(This article belongs to the Special Issue Grid Integration of Decentralized Generation Plants)
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20 pages, 8474 KiB  
Article
Performance Analysis of a Grid-Connected Rooftop Solar Photovoltaic System
by Alper Nabi Akpolat, Erkan Dursun, Ahmet Emin Kuzucuoğlu, Yongheng Yang, Frede Blaabjerg and Ahmet Fevzi Baba
Electronics 2019, 8(8), 905; https://doi.org/10.3390/electronics8080905 - 15 Aug 2019
Cited by 38 | Viewed by 7941
Abstract
Turkey is among the countries largely dependent on energy import. This dependency has increased interest in new and alternative energy sources. Installation of rooftop solar photovoltaic systems (RSPSs) in Turkey is increasing continuously regarding geographical and meteorological conditions. This paper presents an insight [...] Read more.
Turkey is among the countries largely dependent on energy import. This dependency has increased interest in new and alternative energy sources. Installation of rooftop solar photovoltaic systems (RSPSs) in Turkey is increasing continuously regarding geographical and meteorological conditions. This paper presents an insight into the potential situation for Turkey and a simulation study for the RSPS designing and calculation for the faculty building at Marmara University in Istanbul. This simulation study demonstrates that 84.75-kWp grid-connected RSPS can produce remarkable power. The system is performed in detail with the PV*SOL software (Premium 2017 R8-Test Version, Valentin Software GmbH, Berlin, Germany). Detailed financial and performance analysis of the grid-connected RSPS for faculty building with various parameters is also carried out in this study. According to the simulation results, the system supplies 13.2% of the faculty buildings’ annual electrical energy consumption. The annual savings value of faculty buildings’ electrical consumption is approximately 90,298 kWh energy which costs roughly $7296. A photovoltaic (PV) system installation for the faculty building, which has considerable potential for solar energy and sunshine duration, is indispensable for clean energy requirements and was supported by the simulation results. This paper can be considered to be a basic feasibility study prior to moving on to the implementation project. Full article
(This article belongs to the Special Issue Grid Integration of Decentralized Generation Plants)
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