wind energy regulation Articles

  • Vector control of current regulated inverter connected to grid for wind energy applications

    Connecting variable speed wind turbine connected to the grid requires a proper control of the inverter to improve the power quality for the system. The vector control of an inverter connected to the grid is presented. The proposed control technique implies a hysteresis current controller in the inner loop. The complete control system has been developed, analysed, and validated by simulation ...


    By Inderscience Publishers

  • 100 Simple Ways To Save Water

    To improve water conservation install a rain sensor, it turns off your irrigation when it rains. Use a weather-based controller. The use of smart controllers can reduce water usage 24% a year on average. Learn about available rebate programs ...


    By Jain Irrigation, Inc

  • Wind & solar energy and nature conservation

    Climate change and the degradation of ecosystems and biodiversity cannot be solved in isolation. Land and marine ecosystems play a crucial role in the climate system, capturing roughly half of carbon dioxide emissions generated by human activities (UNEP, 2009). Protecting biodiversity preserves ecosystem services that are important for regulating the climate and helping us to adapt to the impacts ...

  • Wind energy in Italy: regulatory and technical aspects

    Italy has carried out the deregulation of the electricity sector. The EU 'Renewable Directive' gave Italy a very ambitious burden sharing: by 2010, 25% of the demand will be faced by renewable energy against a 1997 baseline of 16%. To sustain such development, the producers/importers have a yearly obligation to inject into the system 'green production': in 2002 by 2% increasing to 3.05% by 2006 ...


    By Inderscience Publishers

  • Prospect of offshore wind energy development in Japan

    In Japan, the cumulative capacity of wind turbine generation systems on land has increased steadily in recent years. To install a large number of wind turbines has inherent problems such as shortage of suitable land, and inadequate infrastructure such as power cables and roads. The necessity for development of offshore wind turbine generation systems has been recognised based on the above ...


    By Inderscience Publishers

  • Bidding and regulating strategies in a dual imbalance pricing system: case study for a Dutch wind producer

    In this work, offshore wind power forecast and realisation data are combined with price information from the day-ahead market operated by the Amsterdam Power Exchange and from the imbalance market operated by the Dutch System Operator. This allows for computing spot-market revenues and imbalance penalties or gains for a wind power producer. Three different cases are evaluated: a perfect forecast, ...


    By Inderscience Publishers

  • A combined electro-mechanical control technique for dynamic voltage regulation of a stand-alone wind turbine generator

    This paper introduces a computer-based model and dynamic simulation of a combined electro-mechanical control technique for a stand-alone wind turbine generator system. The presented combined control technique consists of three closed loops for speed regulation, nacelle alignment and dynamic load voltage regulation. Speed regulation is achieved by adjusting the pitch angle of the turbine blades. ...


    By Inderscience Publishers

  • Wind Generators as Role Models

    Advanced speed control methods are available for the regulation of wind generators. Working together with SET Sustainable Energy Technologies GmbH, Sulzer made use of one of these new concepts on pumps for the first time and implemented it with great success on a feedwater pump in a refinery. Unregulated pumps consume unnecessary drive energy when demand fluctuates. By controlling ...


    By Sulzer

  • Drones for Wind Turbine Inspection

    Unmanned Aerial Vehicles and Inspection Services for Wind Turbines: Global Market Assessment and Forecasts By the beginning of 2015, there were nearly 270,000 individual wind turbines operating globally. The more than 800,000 blades spinning on these turbines are battered by the elements over time and gradually wear out. Deterioration can cause reduced energy ...

  • Novel STATCOM controllers for voltage stabilisation of wind energy scheme

    This paper presents two novel dynamic controllers for the Static Synchronous Compensator (STATCOM) device to stabilise Stand-Alone Wind Energy Conversion Systems (SWECS) using an induction generator. The unified AC system wind energy conversion scheme is connected to a hybrid electric load. The STATCOM device is modelled using the PSCAD/EMTDC software environment. Two novel dynamic controllers ...


    By Inderscience Publishers

  • An integrated assessment for wind energy in Lake Michigan coastal counties

    The benefits and challenges of onshore and offshore wind energy development were assessed for a four‐county area of coastal Michigan. Economic, social, environmental, and spatial dimensions were considered. The coastal counties have suitable wind resources for energy development which could contribute toward Michigan's ten percent renewable energy standard. Wind energy is cost‐effective with ...


    By John Wiley & Sons, Ltd.

  • Belgium Wind Power Market 2025: Levelized Cost of Energy (LCOE)

    RnRMarketResearch.com adds report “Wind Power in Belgium, Market Outlook to 2025, Update 2014 – Capacity, Generation, Levelized Cost of Energy (LCOE), Investment Trends, Regulations and Company Profiles” to its store.   “Wind Power in Belgium, Market Outlook to 2025, Update 2014 Capacity, Generation, Levelized Cost of Energy (LCOE), ...


  • EPA`s proposed underground injection control regulations

    As the drivers for global climate change become better understood by scientists, politicians, industry, and the public, there is growing consensus that action should be taken to limit atmospheric emissions of carbon dioxide (CO2) and other greenhouse gases (GHGs). Even as wind, solar, nuclear, biofuels, and other alternative energy sources become increasingly important, the United States will ...

  • 2013 to be Record Year for Offshore Wind

    Offshore wind power installations are on track to hit a seventh consecutive annual record in 2013. Developers added 1,080 megawatts of generating capacity in the first half of the year, expanding the world total by 20 percent in just six months. Fifteen countries host some 6,500 megawatts of offshore wind capacity. Before the year is out, the world total should exceed 7,100 megawatts. Although ...


    By Earth Policy Institute

  • Evaluation of wind power integration practices in Germany

    With over 20, 6 GW installed wind capacity, Germany is the world leader in this domain. Integration of power, stochastically produced by thousands of wind converters requires extensive legislative and operational regulation. In Germany, this is actually done by the Renewable Energy Act (Bundestag, 2004) and several derived agreements (i.e. VDN, 2005a,b, 2006) among the affected parties. In this ...


    By Inderscience Publishers

  • Planning of the grid integration of wind energy in Germany onshore and offshore up to the year 2020

    The ongoing penetration of large amounts of wind power capacities in Germany has strong impacts on the necessary promotion volumes (direct costs of Renewable Energy Source (RES) promotion) but also on necessary grid extensions, the future need for regulating and reserve power capacities, the thermal power plant system and the electricity price for end-consumers (indirect effects). On behalf of ...


    By Inderscience Publishers

  • Maximum power point tracking for wind energy conversion systems based on fuzzy modelling and control

    Wind energy conversion systems (WECS) have merits as environmentally friendly and renewable sources of energy. Because of its stochastic variations, power management concepts are essential to extract as much power as possible from the wind when it becomes available. The purpose of this paper is to present a TSK fuzzy model, which represents the turbine characteristic for maximum power point ...


    By Inderscience Publishers

  • An introduction to reactive power compensation for wind farms

    The paper summarises the refereed contributions of seven articles reviewed for publication in the IJETP – Special Issue on "Reactive compensation for wind farms". The main goal of the special issue is to provide a forum to exchange information on the reactive power compensation requirements for wind farms and introducing possible price mechanisms for today's deregulated power industry. ...


    By Inderscience Publishers

  • Reactive power compensation of wind energy conversion system by using Unified Power Flow Controller

    Voltage control and reactive power compensation in a distribution network with embedded Wind Energy Conversion System (WECS) represents the main concern of this paper. The WECS is a fixed speed/constant frequency system that is equipped with an induction generator driven by an unregulated wind turbine. The problem is viewed from short-term (10 seconds), mid-term (10 minutes) and long-term (48 ...


    By Inderscience Publishers

  • Delivering on the Clean Energy Economy: The role of policy in developing successful domestic solar and wind industries

    The renewable energy industry is expanding to meet the needs of a large and growing global market for clean and secure energy. This growth is likely to continue, with electricity production from non-hydro renewable energy sources expected to grow more than eight-fold from 2009 to 2035, if countries implement their existing commitments, and draw nearly US$3 trillion in investment. In this ...

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