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Life cycle carbon emission assessment of a multi-purpose university building: A case study of Sri Lanka

Ramya KUMANAYAKE, Hanbin LUO

Frontiers of Engineering Management 2018, Volume 5, Issue 3, Pages 381-393 doi: 10.15302/J-FEM-2018055

Abstract: for assessing carbon emissions of buildings, using a multi-storey reinforced concrete building in a Sridesigns that can save mass material quantities, using alternative materials that are locally available in SriLanka and implementing material reuse and recycling.study is one of the first to undertake a life cycle carbon emissions assessment for a building in the Sri

Keywords： carbon emission life cycle assessment buildings sustainable construction Sri Lanka

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A unified power electronic controller for wind driven grid connected wound rotor induction generator using line commutated inverter

AMMASAI GOUNDEN, Raavi SRI NAGA RAMESH

Frontiers in Energy 2013, Volume 7, Issue 1, Pages 39-48 doi: 10.1007/s11708-012-0229-3

Abstract: The implementation of a simple power converter for a wound rotor induction generator employing a three phase diode bridge rectifier and a line commutated inverter in the rotor circuit for super synchronous speeds has been proposed. The detailed working of the system in power smoothing mode and maximum power point tracking mode is presented. The current flow in the rotor circuit is controlled (by controlling the firing angle of the line commutated inverter) for controlling the stator power in both the modes. An 8 bit PIC microcontroller has been programmed to vary the firing angle of the line commutated inverter. Experiments have been carried out on a 3-phase, 3.73 kW, 400 V, 50 Hz, 4-pole, 1500 r/min wound rotor induction generator and the results obtained with the generator supplying power in both the modes are furnished. The complete scheme has been modeled using MATLAB/SIMULINK blocks and a simulation study has been conducted. The experimental waveforms are compared with the simulation results and a very close agreement between them is observed.

Keywords： line commutated inverter MPPT power smoothing wound rotor induction generator