Suchergebnisse

Unpredictable wind nature highly affects wind power plants operation and their capability for an electrical energy production. The Krnovo wind power plant, as a new renewable energy source in Montenegrin power system, is faced with this issue. The utilization of an electrical energy storage system (EES) is proposed in this paper as a way for the problem overcoming. Through performed simulation in MATLAB Simulink software, it was concluded that connection of lithium-ion battery to the wind plant will significantly improve its efficiency. The results of simulations proves the capability of the lithium-ion battery system to maintain the value of Krnovo output power stable, making this facility a more constant power source. ; This work has been supported through European Union's Horizon 2020 research and innovation program under project CROSSBOW – CROSS BOrder management of variable renewable energies and storage units enabling a transnational Wholesale market (Grant No. 773430).

This work is supported by the French Government under the program Investissements d'Avenir (ANEITE-002-01). ; International audience

This work is supported by the French Government under the program Investissements d'Avenir (ANEITE-002-01). ; International audience

This work is supported by the French Government under the program Investissements d'Avenir (ANEITE-002-01). ; International audience

Since the widespread utilisation of wind power has begun in the early 2000's, European countries are continuously working on the legislative environment of this renewable energy source. This has led to a wide variety of different support schemes and tariff systems. Experts agree that the Hungarian legislation system did not reach its goal. On one hand, scheduling accuracy of wind turbines is still far below international standards, and introduction of the penalty tariff was not an effective solution to reverse the process. The aim of the author is to solve this twofold problem with the redesign of the current obligatory electricity purchase and scheduling system, while taking into consideration new regulations of the European Union. The proposed system is also expected to allow the transmission system operator to decrease the amount of control reserves.

Wind power is widely considered to be a qualified renewable, clean, ecological and inexhaustible resource that is becoming a leader in the current energy transition process. It is a mature technology solution that was quickly developed and has been massively integrated into power systems in recent years. Indeed, a remarkable number of renewable integration policies have been promoted by different governments and countries. With the aim of maximizing the power given by wind resources, the locations of both onshore and offshore wind power plants must be optimized following a sort of different criteria. Under this scenario, a number of factors and decision criteria in the evaluation and selection of locations can be identified. Moreover, the relevant wind power increasing in the power generation mix is addressed, along with a standardization of factors and decision criteria in the optimization and selection of such optimal locations. In this context, this paper describes a systematic review and meta-analysis combining most of the contributions and studies proposed during the last decade. Thus, our aim is focused on reviewing and categorizing all factors to be considered for optimal location estimation, pointing out the differences among the selected factors and the decision criteria for onshore and offshore wind power plants. In addition, our review also includes an analysis of the representative key indicators for the contributions, such as the annual frequency of publications, geographical classification, analysis by category, evaluation method and determining factors.

Wind power is widely considered to be a qualified renewable, clean, ecological and inexhaustible resource that is becoming a leader in the current energy transition process. It is a mature technology solution that was quickly developed and has been massively integrated into power systems in recent years. Indeed, a remarkable number of renewable integration policies have been promoted by different governments and countries. With the aim of maximizing the power given by wind resources, the locations of both onshore and offshore wind power plants must be optimized following a sort of different criteria. Under this scenario, a number of factors and decision criteria in the evaluation and selection of locations can be identified. Moreover, the relevant wind power increasing in the power generation mix is addressed, along with a standardization of factors and decision criteria in the optimization and selection of such optimal locations. In this context, this paper describes a systematic review and meta-analysis combining most of the contributions and studies proposed during the last decade. Thus, our aim is focused on reviewing and categorizing all factors to be considered for optimal location estimation, pointing out the differences among the selected factors and the decision criteria for onshore and offshore wind power plants. In addition, our review also includes an analysis of the representative key indicators for the contributions, such as the annual frequency of publications, geographical classification, analysis by category, evaluation method and determining factors. ; 2019-20

The article discusses the analysis results of prospects of the wind power plants introduction in Ukraine. The attention focuses on the advantages of wind energy compared to traditional methods of power generation. The authors analyze the major achievements of the world practice in this area, with a help of government support programs. They also provide examples of the planning development of wind power plants in the other states. The article gives the studying results of development conditions of wind power industry in Ukraine. The climatic conditions are discussed and on their basis areas of the country which are suitable for the use of wind turbines are identified. The regulatory legal acts of the country are also studied. The attention is drawn to the absence of hazardous wastes of wind turbines. The calculations are carried out on the fuel economy and the other resources for the thermal, hydro- and nuclear power plants, provided the development of wind power plants. It follows from these studies that the development of wind energy could lead to resource saving for conventional power plants, as well as give profit to the state. The conducted research proved the feasibility of the alternative energy sources, particularly of the wind power. ; В статье проведен анализ перспектив внедрения ветроэлектростанций Украины. Рассмотрены нормативно–правовые акты и мировые тенденции этой отрасли, географические и климатические условия страны, а также экологические аспекты и вопросы надежности ветрогенераторов. Акцентировано внимание на отсутсвие вредных отходов ветрогенераторов. Проведенные исследования доказали целесообразность применения альтернативных источников электроэнергии, в частности энергии ветра. ; У статті проведено аналіз перспектив впровадження вітроелектростанцій України. Розглянуто нормативно–правові акти та світові тенденції в цій галузі, географічні та кліматичні умови країни, а також екологічні аспекти і питання надійності вітрогенераторів. Акцентовано увагу на відсутність шкідливих залишків при роботі вітрогенераторів. Проведений економічний порівняльний аналіз роботи вітроелектростанцій підтвердив економію паливних ресурсів. Проведені дослідження довели доцільність застосування альтернативних джерел електричної енергії, зокрема енергії вітру.

Wind power is widely considered to be a qualified renewable, clean, ecological and inexhaustible resource that is becoming a leader in the current energy transition process. It is a mature technology solution that was quickly developed and has been massively integrated into power systems in recent years. Indeed, a remarkable number of renewable integration policies have been promoted by different governments and countries. With the aim of maximizing the power given by wind resources, the locations of both onshore and offshore wind power plants must be optimized following a sort of different criteria. Under this scenario, a number of factors and decision criteria in the evaluation and selection of locations can be identified. Moreover, the relevant wind power increasing in the power generation mix is addressed, along with a standardization of factors and decision criteria in the optimization and selection of such optimal locations. In this context, this paper describes a systematic review and meta-analysis combining most of the contributions and studies proposed during the last decade. Thus, our aim is focused on reviewing and categorizing all factors to be considered for optimal location estimation, pointing out the differences among the selected factors and the decision criteria for onshore and offshore wind power plants. In addition, our review also includes an analysis of the representative key indicators for the contributions, such as the annual frequency of publications, geographical classification, analysis by category, evaluation method and determining factors. ; This work was supported by 'Ministerio de Educación, Cultura y Deporte' of Spain (grant number FPU16/04282). This research received no external funding.

It is a reality that nowadays the demand for energy is increasing in the world, but at the same time conventional energy resources are becoming expensive, rare, and more pollutant. All these facts are leading the countries to focus on renewable energy sources, as they are cleaner and abundant. In this field Offshore Wind Power Plants (OWPPs) are becoming increasingly relevant in Europe, and worldwide mainly due to space limitations constraints (possibility of using larger wind turbines), the fact wind speeds are potentially higher and smoother at sea (leading to higher power generation), lower visual and noise impact than onshore farms, and finally because of the progressive saturation of propitious onshore sites. Currently, and because of the environmental and social legislation, OWPPs are forced to be constructed further from shore. There are three main factors to be covered when designing AC electric system of OWPPs: investment cost of components, system efficiency, and system reliability. The present project is focus on the first two key factors, and also considers a stochastic optimization of the electric system of an OWPP operation in order to minimize the investment and operational cost, and in this way try to get the best scenario obtaining the most of benefits. GAMS and MATLAB softwares have been used to implement the main program, obtaining a basic engineering tool to design and take decisions for the electric power system applied to real offshore wind farm.

It is a reality that nowadays the demand for energy is increasing in the world, but at the same time conventional energy resources are becoming expensive, rare, and more pollutant. All these facts are leading the countries to focus on renewable energy sources, as they are cleaner and abundant. In this field Offshore Wind Power Plants (OWPPs) are becoming increasingly relevant in Europe, and worldwide mainly due to space limitations constraints (possibility of using larger wind turbines), the fact wind speeds are potentially higher and smoother at sea (leading to higher power generation), lower visual and noise impact than onshore farms, and finally because of the progressive saturation of propitious onshore sites. Currently, and because of the environmental and social legislation, OWPPs are forced to be constructed further from shore. There are three main factors to be covered when designing AC electric system of OWPPs: investment cost of components, system efficiency, and system reliability. The present project is focus on the first two key factors, and also considers a stochastic optimization of the electric system of an OWPP operation in order to minimize the investment and operational cost, and in this way try to get the best scenario obtaining the most of benefits. GAMS and MATLAB softwares have been used to implement the main program, obtaining a basic engineering tool to design and take decisions for the electric power system applied to real offshore wind farm.