charge controller Articles

  • A diesel compound HCCI combustion engine based on injection strategy control

    This paper presents a compound combustion technology of "Premixed Combustion" and "Lean Diffusion Combustion" for the purpose of realising the concept of homogeneous charge compression ignition (HCCI) combustion in a DI diesel engine. The premixed combustion is achieved by the technology of multi-pulse fuel injection. The start of pulse injection, injection-pulse number, injection period of each ...


    By Inderscience Publishers

  • Control and small-signal analysis of battery and supercapacitor hybrid energy storage systems

    This paper is devoted to control strategies for an active battery and supercapacitor hybrid energy storage system using the master-slave control scheme, where the charging and discharging currents of the supercapacitor are dependent on that of battery and the current sharing ratio depends upon the load conditions. A small-signal model is proposed, which considers the variations in the currents of ...


    By Inderscience Publishers

  • Controlling methanogenesis and improving power production of microbial fuel cell by lauric acid dosing

    Methanogens compete with anodophiles for substrate and thus reduce the power generation and coulombic efficiency (CE) of the microbial fuel cell (MFC). Performance of a baked clayware membrane MFC inoculated with mixed anaerobic sludge pretreated with lauric acid was investigated in order to enhance power recovery by controlling methanogenesis. In the presence of lauric acid pretreated inoculum, ...


    By IWA Publishing

  • A sensitivity-based approach for optimal location of multi-converter unified power flow controller considering its impact on generation and wheeling costs

    The optimal location of Flexible AC Transmission Systems (FACTS) controllers is important due to their high cost. When a FACTS controller uses some converters, its cost becomes very high. A multi-converter unified power flow controller, also known as Generalised Unified Power Flow Controller (GUPFC) can effectively control the power system parameters such as bus voltage and real and reactive ...


    By Inderscience Publishers

  • Dispatching of wind farms using battery energy storage

    In this paper, a STATCOM interfaced battery energy storage system (BESS) is considered for smoothing intermittent power output of a large wind farm so that it can be dispatched. The main advantage of the system is that it can inject both real power (by charging/discharging the BESS) and the reactive power to the system. The paper investigates the main design issues related to BESS – the control ...


    By Inderscience Publishers

  • Novel regulated DC/DC and DC/AC power converters

    Power sources with a desired voltage profiles, are required in many applications including renewable energy. Although in most cases, a sinusoidal waveform of specified amplitude and frequency is of interest, other types of voltage profiles, such as square, trapezoidal, triangular, etc., may also be required in amplifiers, shakers, mechatronics, etc., applications. In this paper, a capacitor ...


    By Inderscience Publishers

  • Design and implementation of a bidirectional isolated DAB–based DC/DC converter for battery system

    A home area network (HAN) incorporating a high–power high–efficiency charging/discharging battery system is capable of executing energy saving strategies in the smart grid, such as TOU or DR. This paper presents a bidirectional isolated DAB–based DC/DC converter for a Li+Fe battery system in the HAN. Battery energy is controlled by the phase angle between the primary bridge ...


    By Inderscience Publishers

  • Solving solar-power issues

    Certainly, no one would accept only having electricity during the day, and then only on clear days, if they have a choice. We need energy storage -- batteries. Unfortunately, batteries add a lot of cost and maintenance to the PV system. Currently, however, it's a necessity if you want to be completely independent. One way around the problem is to connect your house to the utility grid, buying ...


  • Solar powered dosing cube

    WES Ltd has developed a solar powered version of its popular and recently improved dosing CUBE concept. Based around 24V DC versions of the Alldos DDI range of digital dosing pumps, the system provides all of the usual advantages of the dosing CUBE with the added benefit of being able to accurately dose chemicals in locations where no power supply is available and provide further mobility ...


    By WES Ltd / Weschem Ltd

  • Intelligent Storing

    Intelligent management of battery-storage systems can save money and, at the same time, be beneficial for the utility grid. Read this article and discover what is behind all this. - See more at: http://en.sma-sunny.com/2015/07/10/intelligent-storing/#sthash.s81hF5k7.dpuf Intelligent management of battery-storage systems can save money and, at the same time, be beneficial for the utility grid. ...


    By SMA Solar

  • Using magnets to cater energy requirements

    It is safe to say that it is conceivable to utilize magnets for vitality? Yes, not just is it conceivable it has been utilized for a considerable length of time. In the late 1800s they were utilizing this strategy for force. It has created a ton since that time and gets to be exceptionally questionable yet yes utilizing magnets for vitality is completely ...


    By Stanford Magnets

  • Geli Enables BMW EV Demand Response Program - Case Study

    Challenge BMW Technology Group planned to launch a ground-breaking electric vehicle (EV) program called i ChargeForward that would allow individual BMW i3 owners to earn money by participating in demand response (DR) events. However, in order for BMW to participate in Pacific Gas & Electric’s day-ahead and real-time DR markets, it needed to guarantee 100 kilowatts (kW) of demand ...


    By Growing Energy Labs, Inc.

  • How a Solar Light Works

    A solar light is a light that has the ability to convert sunlight from the afternoon hours into electrical energy that eventually powers the light whenever it is required. It looks no different from a regular light but there are very many subtle differences in the background. A solar panel collects the sun’s radiation and then transforms it into electrical energy. The converted ...


    By Greenshine New Energy LLC

  • Animalistic heat

    Rearing animals requires a lot of patience, dedication and above all, constant warmth. Since this very year, a farmer from Schrozberg, Germany, relies on cost cutting technologies, namely solar thermal heating and wood chip heating. A constant temperature of 45 degrees Celsius is crucial to breed piglets. Enormous costs were the result of utilizing gas heating to provide a constant temperature ...


    By TiSUN GmbH

  • Time to `like` the energy internet

    We hear a lot about the upcoming democratization of energy.  But with the average consumer thinking about energy only six minutes per year, it’s fair to wonder if ...

  • For cheaper solar photovoltaic systems

    It is known for several decades, photovoltaic devices that exploit the sun's energy to convert into electricity used to provide a sustainable alternative - and potentially unlimited - the use of fossil fuels. So why these solar technologies have they not been adopted more widely? Simply “because they are too expensive," said Ji-Seon Kim, professor of Solid Physics at Imperial College of ...


    By Greenshine New Energy LLC

  • New Approach allows Subscribers to Reach the Summit of the Mountain of Information on Gas Turbine and Reciprocating Engine Technology

    The available information on combustion, flow control, treatment and environmental compliance for gas turbines and reciprocating engines is doubling every few years. It is now more challenging than climbing Mt. Everest to find the most current and relevant information. Rapid developments include zero liquid discharge (ZLD) technologies, repairable valves, high efficiency air inlet filters, ...


    By The McIlvaine Company

  • 7 Theses on Storage Systems in Commercial Applications

    Solar storage systems are now the focus of attention more than ever before. The application areas are as different as the requirements. While private PV system operators work toward optimizing self-consumption, storage systems in industry are mainly used to provide control reserve and thus ensure grid stability. In commercial storage ...


    By SMA Solar

  • WESPs: Securing a cleaner future for power-generating facilities - Case Study

    This article explains why wet electrostatic precipitators remain a viable technology for dealing with today's increasingly stringent compliance issues. Despite recent, recession-related volatility in both power generation and consumption, industry analysts expect a resumption of long-term growth trends as continued global demand for energy — in both developed and developing nations ...


    By Beltran Technologies, Inc.

  • Utilities: friend or foe of energy efficiency?

    With oil prices so high, talk again has turned to making the U.S. more energy efficient. In the power industry, utilities have been typically charged with this mission. Or to more aptly describe it, they have gotten dragged, kicking and screaming, into helping their customers use less electricity. You can’t blame them for resisting. An electric utility is a business that makes its money ...

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