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Stability and Control of Power Grids Integrated with Renewable Energy Sources

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "F: Electrical Engineering".

Deadline for manuscript submissions: 7 November 2024 | Viewed by 1115

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Department of Electrical Engineering and Industrial Informatics, University Polytechnica Timisoara, 331128 Hunedoara, Romania
Interests: system modelling and simulation; electrical engineering; analog and digital control; signal processing; applied electronics; sensors
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Special Issue Information

Dear Colleagues,

Nowadays, it is difficult to imagine our society without electricity, but obtaining electricity means, in some cases, such as fossil fuels or nuclear energy, a considerable carbon footprint, which is detrimental in the fight against climate change. Renewable energy sources, such as wind power, solar power, bioenergy, and hydroelectric power, are natural and self-renewable, and they usually have a low- or zero-carbon footprint. Renewables' percentage of total power generation is quickly increasing, both in industrialized and in developing countries. Furthermore, several countries have effective strategies for converting their power sectors to renewables. To achieve these goals, the layout and operation of current power grid infrastructures will need to be reconsidered as the proportion of renewable energy generation grows.

The incorporation of a considerable number of variable renewables into electricity networks necessitates significant changes in order to increase the flexibility of existing systems in numerous directions. The first direction is to allow electricity flow, not only from centralized power plants to users, but also from small users or producers to the grid, which is aimed at ensuring grid stability when installing distributed generation; the second is to establish intelligent grid and demand management mechanisms; the third is to improve grid interconnection at the regional and international level, with the aim of increasing balancing capabilities, flexibility, stability, and the security of the supply; and the last is to introduce energy storage capacity to store electricity (energy) from variable renewable generation sources when the production exceeds the demand.

This Special Issue intends to describe and communicate the most recent achievements in the theory, design, modeling, stability, and control of power grids that incorporate renewable energy sources.

Topics of interest for publication include, but are not limited to, the following:

  • All aspects referring to the design, modelling, and use of renewable energy sources;
  • Establishing intelligent power grid;
  • Electricity flow control;
  • Improving grid interconnection;
  • Developing energy storage capacity;
  • Stability and control of power grids;
  • Power quality in power grids;
  • Fault detection;
  • On-grid and off-grid condition monitoring techniques;
  • Optimal design methodologies;
  • Advanced modelling approaches.

Prof. Dr. Caius Panoiu
Guest Editor

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • renewable energy
  • modelling
  • design
  • simulation
  • systems control
  • integrated grids
  • power sources
  • grid topologies
  • fault detection

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Published Papers (2 papers)

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Research

17 pages, 4285 KiB  
Article
Impact of Phase Angle Jump on a Doubly Fed Induction Generator under Low-Voltage Ride-Through Based on Transfer Function Decomposition
by Peiru Feng, Jiayin Xu, Zhuang Wang, Shenghu Li, Yuming Shen and Xu Gui
Energies 2024, 17(19), 4778; https://doi.org/10.3390/en17194778 - 24 Sep 2024
Abstract
During the fault period, a phase angle jump may occur at the stator or the point of common coupling, which will deteriorate the low-voltage ride-through (LVRT) characteristics of a doubly fed induction generator (DFIG). The existing LVRT studies focus on the impact of [...] Read more.
During the fault period, a phase angle jump may occur at the stator or the point of common coupling, which will deteriorate the low-voltage ride-through (LVRT) characteristics of a doubly fed induction generator (DFIG). The existing LVRT studies focus on the impact of a voltage drop on DFIGs but often ignore that of a phase angle jump. The time-domain simulation is accurate in describing the response of a DFIG during the LVRT process, but it is time-consuming for a DFIG with the full-order model. In this paper, by using the voltage magnitude and phase angle of the stator or the point of common coupling as the inputs, and the state variables as the outputs, the transfer function of a DFIG is derived to analyze its response and find the LVRT measures against the voltage drop and, especially, the phase angle jump. Firstly, the differential-algebraic equations of the DFIG are linearized to propose their transfer function model. Secondly, considering its high-order characteristic, a model reduction method for the transfer function of the DFIG using the Schur decomposition is proposed, and the analytical expression of the output variables of the DFIG with the phase angle jump is derived by the inverse Laplace transformation to judge the necessity of the LVRT measures. Finally, the simulation results of the DFIG are provided to verify the accuracy of the transfer function model and its reduced-order form and validate the feasibility of the LVRT against the phase angle jump with the proposed models. Full article
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26 pages, 2059 KiB  
Article
Decision-Making Model Supporting Eco-Innovation in Energy Production Based on Quality, Cost and Life Cycle Assessment (LCA)
by Dominika Siwiec and Andrzej Pacana
Energies 2024, 17(17), 4318; https://doi.org/10.3390/en17174318 - 28 Aug 2024
Viewed by 331
Abstract
Currently, the development of renewable energy products (RES) encourages the search for innovative solutions that take into account key criteria from the point of view of their sustainable development. Despite efforts in this area, there is a lack of approaches and tools to [...] Read more.
Currently, the development of renewable energy products (RES) encourages the search for innovative solutions that take into account key criteria from the point of view of their sustainable development. Despite efforts in this area, there is a lack of approaches and tools to support this process. Therefore, the aim of the research was to develop a decision-making model supporting eco-innovation in products based on the key criteria of sustainable development: quality (customer satisfaction with use), environmental impact in the life cycle (LCA), and the cost of investment incurred in the product development. The functioning of the model was based on the following factors: (i) obtaining the voice of customers (VoC) and processing it into product criteria as part of the development of alternative production solutions (prototypes), (ii) prospective quality assessment and subsequent life cycle assessment of prototypes, (iii) cost analysis taking into account both quality and environmental criteria, (iv) interpretation of results and search for eco-innovative product solutions. Development decision-making is additionally supported by techniques implemented in the model, e.g., the CRITIC method, the LCA method with Ecoinvent database in OpenLCA, the CEA method, and the morphology method. The model was illustrated and tested for photovoltaic (PV) panels, after which a global sensitivity analysis was performed in Statistica. The test results showed that the main factor that influenced the PV development decisions was the investment cost, followed by quality (customer satisfaction) and then environmental impact in LCA. Full article
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