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Design and Implementation of a Regenerative Programmable Voltage Source

Ghasemizadeh, Roozbeh | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 53304 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Zolghadri, Mohammad Reza
  7. Abstract:
  8. Programmable AC Power Supply is a part of any Grid Simulator. Grid simulator is a system that, as a voltage source, can produce various power grid voltage waveforms in the output, and as a load, can draw different currents of ordinary loads from the power grid. The application of Grid Simulators is testing many grid connected systems, such as chargers, power supplies, PV inverters and etc. The purpose of this thesis is to design and build a 3 kW Programmable AC power supply, which can be used as a part of a grid simulator in future works. In this thesis, back to back converter topology is used for implementation of the programmable AC power supply. This back to back converter consists of an active rectifier and a programmable inverter, which are joined together with a DC link. The active rectifier is built successfully, and the programmable inverter is properly simulated. The built active rectifier is capable of transferring power in both directions with power factor correction. The DC link voltage magnitude is controlled by the active rectifier. The simulated programmable inverter is able to produce voltage harmonics in its output (up to the 13th order) with desired magnitudes of amplitude and phase. It can also transfer power in both directions. Simulation results with both active and passive loads are presnted. Initially, the active rectifier and the programmable inverter are illustrated separately. Then they are linked together to derive the Programmable AC Power Supply. Lastly, the active rectifier implementation process and its results are laid out
  9. Keywords:
  10. Power Supply ; Controller ; Power Recycle ; Voltage Harmonic ; Grid Connected Inverter ; Voltage Source

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