power grid transformer Articles

  • Durisol Transformer Thermal barriers

    Armtec is proud to have built the first Durisol transformer thermal barrier in Western Canada and continue the tradition of offering innovative solutions at the best value to our customers. In 2011, Yukon Energy built a new172km long, 138kV transmission line from Carmacks to Stewart Crossing in the central Yukon Territory with the goal of connecting their northern and southern grids. Having one ...


    By Armtec

  • Cascade failures and distributed generation in power grids

    Power grids are nowadays experiencing a transformation due to the introduction of distributed generation based on renewable sources. At difference with classical distributed generation, where local power sources mitigate anomalous user consumption peaks, renewable sources introduce in the grid intrinsically erratic power inputs. By introducing a simple schematic (but realistic) model for power ...


    By Inderscience Publishers

  • PSEG Transforms Environmental Compliance into Powerful Driver for Operational Efficiency, Sustainability

    As New Jersey’s oldest and largest investor-owned utility provider, Public Service Enterprise Group (PSEG) provides gas and electricity to three-quarters of the state’s population as well as supplying power to Connecticut and New York. PSEG has always been committed to ensuring that its facilities are in full compliance with a multitude of municipal, state and federal regulations ...


    By IHS

  • Case study - Green Machine uses biomass to put power back on the grid

    St. Helena Island, South Carolina Gross Power Output: up to 43kWe Thermal Heat Input: 200 - 500kWt Hot Water Input Range: 160 - 235°F Hot Water Flow: 150 GPM     Cold Water Input: 68°F Cold Water Flow: 150 GPM In fall 2010, American Capital Resources Company installed ElectraTherm’s heat-to-power Green Machine, for generating power from ...


    By ElectraTherm

  • How Does Solar Energy Transformed into Electricity?

    Many years ago, solar energy was never been the subject of all talks. Basically because the solar energy was never given that importance in people’s day to day life before. They just ignore and did not give attention on its importance. They fail to realize the importance of it. Now, as the period of modernized society where new technologies and innovations occurred came, the demand for ...


    By Greenshine New Energy LLC

  • Performance of grid connected inverter with maximum power point tracker and power factor control

    Detailed analysis, simulation and hardware results of grid connected inverter with maximum power point tracker and power factor control in Malaysian climate are presented. A six-switch topology inverter with symmetrical pulse width modulation (PWM) switching technique is used. A low-pass filter is incorporated in the circuit to filter out unwanted harmonics and produce a sinusoidal AC current. ...


    By Inderscience Publishers

  • What the heck is a smart grid anyway?

    You know the old adage, ‘Never talk about politics or religion in polite company’? I’m beginning to think we need to add a third restraint, one against debate over the meaning of smart grid.Okay, it’s not exactly a dinnertime topic. But I’ve discovered in gatherings of energy nerds (I’m one), discussion can become fairly heated over what constitutes “smart grid.”On the one side are the ...

  • Microturbines, Gas Engines Link Biogas to the Grid

    OPPORTUNITIES to produce electricity from methane are being improved continuously as manufacturers introduce new and upgraded equipment to address market needs and varying characteristics of raw biogas. In the renewable energy from organics recycling arena, the two primary types of electricity generation equipment are microturbines and reciprocating gas engines. This article provides a brief ...


    By BioCycle Magazine

  • A complex network approach for identifying vulnerabilities of the medium and low voltage grid

    The vision behind the smart grid promises, among other things, to bring more attention to the lower layers of the distribution network where users are gradually transforming into prosumers. Independent of this transformation, users will expect the same (or higher) level of reliability of the infrastructure. In this paper, we consider physical samples from the Dutch medium and low voltage network ...


    By Inderscience Publishers

  • US plant shutdowns, grid focus drive storage growth: Greensmith CEO

    Power plant closures and hiking transmission costs are driving up US utilities’ investment in renewable energy storage, John Jung, CEO of Greensmith, an energy storage services firm, told Wind Energy Update. Some 60 GW of US coal-fired capacity is set to close between 2012 and 2020, according to the EIA. Nuclear plant lifespans will end and the US plans $180bn in planned transmission ...

  • Power Inverter Basics

    Basic knowledge of power inverter Power inverter mainly adopts the PWM at present, controller switch to DC rapidly in a pulse-period to ensure that the DC integral value is equal to the sampling values of AC sine wave at the same time. After filtered, more than 96% sine wave output can be realized. Pulse inverter is self-excited inverter that output voltage is pulse modulation. This kind ...


    By GoHz Inc

  • Change 60Hz to 50Hz Power

    In conventional power supplies, the mains is rectified (that means the negative parts of the main cycle are flipped over to become positive). This gives 50 or 60 positive pulses per second. These pulses are used to charge up capacitors that store the charge between top ups. If you put a scope on the capacitor, you will see a sawtooth waveform that shows the top of the pulse, then the voltage ...


    By Shenzhen Gozuk Co., Limited

  • Solar Energy and Power Importance

    Have you ever wondered why solar energy or power is important? You are not alone in this because it is the common question of all. Before we can understand why solar energy is important we should have a good idea of what solar energy is. Solar energy is produced by the sun. It can be harnessed like any other type of energy and used to ...


    By Greenshine New Energy LLC

  • Exclusive Interview with Catarina Naucler, Nordic Smart Grid Development Lead at Fortum Distribution AB, Sweden

    Exclusive Interview with Catarina Naucler, Nordic Smart Grid Development Lead at Fortum Distribution AB, Sweden Do you think that a 45% renewable energy share target for 2030 is feasible and if so, how does the energy industry need ...


    By Synergy Events

  • Changing the energy game with the ‘power of one’

    Who among us has not eagerly described the smart meter to a non-energy person only to be greeted by a blank stare, or worse the retort: “Why would I want to track my electricity costs all day?” You try to explain the profound applications: smart appliances that talk to the power grid, consumer clubs that sell energy savings, your car serving as a power plant. But the conversation then ...

  • What`s New? Biogas Power

    Technologies that connect the biogas line to the power line include cooling and clean up components, microturbines and reciprocating gas engines and control systems. TOP BILLING on the biogas to electricity stage typically goes to the microturbines and reciprocating gas engines. But in the theater of renewable energy from organics recycling, the show can’t go on without the supporting cast of gas ...


    By BioCycle Magazine

  • Solar power generation by photovoltaic technology

    The various forms of solar energy, solar heat, solar photovoltaic, solar thermal electricity, and solar fuels offer a clean, climate-friendly, very abundant and in-exhaustive energy resource to mankind. Solar power is the conversion of sunlight into electricity, either directly using photovoltaic (PV), or indirectly using concentrated solar power (CSP). The research has been under way since the ...


    By Greenshine New Energy LLC

  • A two-stage power electronic interface for fuel cell-based power supply system

    The increasing energy demands, insufficient availability of power generation and increasing global environmental problems, need alternate/green power sources. Among the different green power technologies such as wind power, photovoltaic, gas turbine and fuel cell, the fuel cell-based distributed generation is considered as one of the most promising solutions for stand-alone/grid applications due ...


    By Inderscience Publishers

  • A power-flow control method for hybrid active front-end converters

    The hybrid active front-end converter, which is composed of a capacitor and a voltage source converter in series connection, has been presented recently. Compared with grid-connected converter, the hybrid converter could be operated with reduced dc voltage as well as small-sized passive filters due to series-connected capacitor. This paper presents a power flow control method for a hybrid active ...


    By Inderscience Publishers

  • Programmed PWM to improve power quality in systems with distributed generation units

    Pulse-Width Modulated (PWM) inverters are widely applied in Distributed Generation (DG) units and power quality equipment owing to their excellent performance and flexible control means. Programmed PWM (PPWM), as a special type of optimal PWM strategy, theoretically allows for setting the fundamental and the selected harmonic amplitudes directly to arbitrary values. The algorithms for solving ...


    By Inderscience Publishers

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