Pscad simulation of grid tied photovoltaic and wind farms
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PSCAD Simulation of Grid Tied Photovoltaic and Wind Farms. By Abdulrahman Kalbat. PSCAD/EMTDC. PSCAD : Power Systems Computer Aided Design PSCAD is Graphical User Interface for EMTDC simulation engine EMTDC : Electromagnetic Transients including DC

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PSCAD Simulation of Grid Tied Photovoltaic and Wind Farms

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Pscad simulation of grid tied photovoltaic and wind farms

PSCAD Simulation of Grid Tied Photovoltaic and Wind Farms

By

AbdulrahmanKalbat


Pscad emtdc

PSCAD/EMTDC

  • PSCAD: Power Systems Computer Aided Design

  • PSCAD is Graphical User Interface for EMTDC simulation engine

  • EMTDC: Electromagnetic Transients including DC

  • Simulate time domain instantaneous response of the power systems

www.pscad.com


Pscad vs simulink

PSCAD Vs. Simulink

  • PSCAD’s interface is specialized for power system networks

  • Faster time domain simulation speed

  • Matlab/Simulink Interface in PSCAD

  • Availability of the models for Solar Panels and Wind Turbines

Venayagamoorthy, Ganesh K., “Comparison of power system simulation studies on different platforms – RSCAD, PSCAD/EMTDC, and

SIMULINK SimPowerSystems,” International Conference on Power System Operations and Planning, 2005


Power network under study

Power Network Under Study

  • Complete Utility Grid (from generation to distribution)

  • Utility Scale PV System

  • Utility Scale Wind Turbine System


Previous research done

Previous Research Done

  • Electrical model development and validation for distributed resources for NREL [1]

  • Modeling of a photovoltaic system with a distributed energy storage system [2]

  • Power quality effects of high PV penetration on Distribution Networks [3]

[1] M.G. Simões, B. Palle, S. Chakraborty, and C. Uriarte, “Electrical Model Development and Validation for Distributed Resources ,”

NREL, Golden, CO, 2007

[2} Anthony W. Ma, “MODELING AND ANALYSIS OF A PHOTOVOLTAIC SYSTEM WITH A DISTRIBUTED ENERGY STORAGE

SYSTEM,” M.S. Thesis, Dept. Elect. Eng., California Polytechnic State Univ., San Luis Obispo, CA, 2012

[3] Minas Patsalides, et. al., “Towards the establishment of maximum PV generation limits due to power quality constraints,” Electrical Power and Energy Systems,


Expected results

Expected Results

  • Effects of PV and Wind systems on the power quality of the utility grid

    • Frequency

    • Voltage

  • System’s response to faults:

    • Line to line faults

    • Line to ground faults

    • Lightning strikes


  • Solar photovoltaic model

    Solar Photovoltaic Model

    • Photovoltaic Model

    • Directly convert solar energy into electricity

    • Maximum Power Point Tracker Model

    • Ensure optimum output at varying temperature and insolation

    • Regulate and step-down the high voltage of the PV array.

    Models developed by:

    AthulaRajapakse, Dept. of Electrical and Computer Engineering, Univ. of Manitoba, Winnipeg, Canada


    Grid connected pv

    Grid Connected PV


    Grid connected pv1

    Grid Connected PV

    Solar Radiation

    +

    Cell Temperature

    Data

    PV Array

    +

    Output Capacitor

    DC-DC Converter

    for MPP Tracking

    DC-bus Capacitor

    and Start-up Charging

    3-phase Inverter Bridge

    Anthony W. Ma, “MODELING AND ANALYSIS OF A PHOTOVOLTAIC SYSTEM WITH A DISTRIBUTED ENERGY STORAGE SYSTEM

    ,” M.S. Thesis, Dept. Elect. Eng., California Polytechnic State Univ., San Luis Obispo, CA, 2012


    Maximum power point tracker

    Maximum Power Point Tracker

    Variable Solar Radiation

    Increase Solar Radiation  Increase Short Circuit Current


    Maximum power point tracker1

    Maximum Power Point Tracker

    Variable Temperature

    Increase Temperature  Decrease Open Circuit Voltage


    Maximum power point tracker2

    Maximum Power Point Tracker

    Maximum Power Yield


    Maximum power point tracker3

    Maximum Power Point Tracker

    Regulate and step-down the high voltage of the PV array.


    3 phase inverter

    3-Phase Inverter


    3 phase inverter1

    3-Phase Inverter

    Output Current

    Output Voltage


    Wind turbine model

    Wind Turbine Model

    • Inputs

    • Vw:  Wind speed (must be a positive value) [m/s]

    • W:  Machine mechanical speed [rad/s]

    • Beta:  Pitch angle [°]

    • Outputs

    • Tm:  Output torque of the turbine [p.u.]

    • P:  Output power of the turbine [p.u.]

    • Inputs

    • Wm:  Mechanical speed of the machine [rad/s]

    • Pg:  Power output of the machine based on the machine rating [p.u.]

    • Output

    • Beta:  Pitch angle [°]


    Thank you

    Thank You


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