power optimization Articles

  • Optimizing Wind and Solar Power in Africa

    Editor's Note: The following is a news release authored by Julie Chao and issued by Lawrence Berkeley National Laboratory on April 5, 2017 To meet skyrocketing demand for electricity, African countries may have to triple their energy output by 2030. While hydropower and fossil fuel power plants are favored approaches in some quarters, a new assessment by the Department of Energy’s Lawrence ...


    By Smart Grid Observer

  • Optimal power flow using biogeography based optimisation

    This paper presents a novel biogeography based optimisation (BBO) algorithm for solving constrained optimal power flow (OPF) problems in power system. In this paper, the feasibility of the proposed algorithm is demonstrated for IEEE 30-bus and IEEE 118-bus systems with three different objective functions and it is compared to other population based optimisation techniques. A comparison of ...


    By Inderscience Publishers

  • Optimal Power Flow under Variable Wind Generation

    In this paper Optimal Power Flow (OPF) problem is solved for a power system, which includes wind power as an additional generation input under variable load conditions. The fixed-speed Wind Turbine Generator (WTG) option is considered in this study: simulations have been performed for various sizes of wind farm attached to the IEEE 30-bus systems using the DIgSILENT Power Factory simulation ...


    By Inderscience Publishers

  • Oppositional biogeography-based optimisation for optimal power flow

    This paper describes optimal power flow based on oppositional biogeography-based optimisation (OBBO) in which fuel cost, voltage deviation and power transmission loss functions are individually used as the problem objectives. The feasibility of the proposed method is exhibited for standard IEEE 30-bus and IEEE 118-bus systems and the results obtained by using the proposed approach are compared ...


    By Inderscience Publishers

  • Optimal power flow with benefit maximisation in coordinated bilateral power market

    This paper presents an optimal power flow solution in a coordinated bilateral power network using AC power flow–based methodology. The main objective of the present work is to maximise the benefits in power market. The interior point (IP)–based optimisation method has been used for finding the global solution. The solution has been obtained by announcement of the system information. This ...


    By Inderscience Publishers

  • The Boiler Optimization Journey

    The Boiler Optimization Journey talks about the evolution of power plant optimization software over the past 15 years, from neural network-based systems that advised operators how to bias fuel and air in the furnace to reduce NOx emissions, to integrated closed-loop combustion and sootblowing systems that use hybrid AI technologies, solve a broad range of challenges, and provide enhanced ...


    By NeuCo, Inc.

  • Optimization of a Sulfur Recovery Unit

    Prior to Suncor’s purchase of the Spirit River facility, little attention was given to the LO-CAT unit. In general, over injecting chemicals into a LO-CAT unit will not result in operating problems, just higher than required operating costs. Consequently, in remote gas plants such as Spirit River, it is sometimes difficult to convince operators to change operating conditions if the unit is not ...


    By Merichem Company

  • Signs of optimism for a smarter future

    There are grounds for growing optimism around the opportunities for smart, data-driven technologies in the water sector, given the views of Amir Cahn, Director of Research and Business Development with SWAN, the Smart Water Networks Forum. He puts the proportion of water utilities who are moving forward with such technologies at only 5-10%, but he points also to the growing number of strong case ...


    By Aquatech Global Events

  • New Optimism for a Cleantech Future

    If you’ve not been paying much attention to cleantech in the last little while, it’s time to sit up and take notice — because post-Solyndra, cleantech has been quietly gaining momentum. We had the chance to take a close look at the fundamentals of cleantech over the last two months in co-authoring a new (and free!) 38-page research report in conjunction with Oakland, ...


    By GLOBE Foundation

  • Optimal GPR antenna selection

    It is common knowledge to anyone practicing Ground Penetrating Radar (GPR) technology that lower center frequency antennas mean higher penetration and lower resolution. In the same way it is correct to say that higher center frequency antennas mean lower penetration and higher resolution. This is without any doubt an axiom that provides us with a rule of thumb on what to use and what not to use ...


    By Geoscanners AB

  • Every kilowatt utilised optimally

    Heat recovery with AERZEN blowers As a part of an extensive renovation project, the city of Filderstadt modernised the Bombach wastewater treatment plant, located in the district of Bonlanden. Now, Delta Hybrid rotary lobe compressors made by AERZEN provide optimal oxygen supply, and, thanks to heat recovery measures, the energy balance has improved further. Although ...

  • Power use methods for optimal design of WDS: history and their use as post-optimization warm starts

    This paper describes an extension to the optimal power use surface (OPUS) methodology, which consists of applying a metaheuristic post-optimization process after a network has been designed through the OPUS algorithm. Four different types of metaheuristics were tested in this study. The OPUS methodology focuses on the setting up of efficient ways in which energy is dissipated and flow is ...


    By IWA Publishing

  • Improved genetic algorithm for voltage security constrained optimal power flow problem

    Voltage stability has become an important issue in the planning and operation of many power systems. Contingencies such as unexpected line outages in a stressed system may often result in voltage instability which may lead to voltage collapse. This paper presents a Genetic Algorithm (GA) approach for solving the Voltage Security Constrained Optimal Power Flow (VSC-OPF) problem. Base-case ...


    By Inderscience Publishers

  • High quality data and optimized report delivery, powering competitiveness

    Situation And Objectives Veolia ES, a global leader in environmental management, operates a division in Québec responsible for the inspection of underground infrastructure systems; specifically sewer systems. The division has two offices: one in Montreal, another in Quebec City. In 2007 when Veolia® first started looking into the possibility of teaming up with CTSpec, the ...


    By CTSpec Inc

  • Particle swarm optimisation for security constrained optimal power flow including TCSC

    The planning, operation and control of power system are having great significance governed by security considerations. In an interconnected power system network obtaining maximum performance, maintaining system stability limits and facilitating efficient system operation are the challenging tasks. The estimation of effect of contingencies and planning suitable measures are desirable issues for ...


    By Inderscience Publishers

  • Accuracy and Cost Savings from Automatic Optimization of Dewatering

    Improvements in sensor and automation technology in recent years have made it possible to design a system to control the key variable parameters in and around the dewatering process. By continuously analyzing feed conditions and output from the process, an automated optimization system can make necessary proactive adjustments to the internal settings of the dewatering equipment, the polymer ...

  • We purify our waste­ water optimally

    Holzkirchen wastewater treatment plant achieves a new milestone in energy efficiency with AERsmart The Holzkirchen wastewater treatment plant has a clearly stated objective: “We purify our wastewater optimally.” For the municipal wastewater treatment plant, located 40 kilometres south of Munich, there is a requirement to operate in a way that is as resource-efficient as ...

  • Sustainable nuclear energy: some reasons for optimism

    This paper traces various aspects of nuclear electrical power from about 1970 when it burst on the world scene, starting in the USA and spreading rapidly to the rest of the world. Taking the US situation as typical, and perhaps dominant, I show that the cost of nuclear electricity was cheap in 1973, and the developments since then mostly related to public perception, that made it more expensive. ...


    By Inderscience Publishers

  • IRYStec to Optimize Your Display to the Ambient Conditions

    A display’s performance is measured in a dark or dim room, but the display’s performance does not often account for the fact that it will be viewed in dark room, normal ambient illumination and in bright light.  For example, as ambient illumination goes up, the perceivable black level rises, darker tones are harder to see, colors become desaturated and overall contrast ...


  • Multi-criterion optimization of energy management in drinking systems

    In this study, two different energy sources that are connected to a pumped storage water supply system are analyzed: a water and a wind turbine. A water turbine can be integrated in a water supply system in high-pressure locations. Recently, new sources of energy production are being researched and applied due to the increase in the price of conventional energy sources and concerns regarding the ...


    By IWA Publishing

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