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Design, Manufacturing and Testing a Micro Hydro Turbine Governor Using Commercial Controller

Karbasi Zadeh, Morteza | 2014

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46985 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Durali, Mohammad
  7. Abstract:
  8. Lots of micro hydropower potentials are spread all around Iran country. They have the capability to produce electricity for workhouses, residential areas, agricultural and animal husbandries and recreational tourism centers. Hence, Sharif University of Technology and Iran Water and Power Resources Development Corporation decided to design and produce three types of hydro micro turbines to cover all range of micro hydropower potentials available in Iran. These three types of micro turbines are Pelton, Banki and Axial and they are designed in order to cover high, middle and low heads in sequence. Frequency control of micro hydropower plants is so vital due to plant off-grid. The most prevalent way to control the frequency of these power plants is Electronic Load Controller (ELC). In this method, local grid frequency is controlled by controlling produced active power plant. In fact, resistive bank is paralleled with local grid and active power resistive bank is controlled by a PID controller. At this survey, the best is done to control produced electricity frequency by designing, manufacturing and testing ELC for three different types of power plants. Due to high efficiency of synchronous generators and also their availability in Iran, this kind of generator is used in this project. As the selected generator is synchronized, the frequency is adjusted by controlling the generator rotational speed. First the model of some important parts of power plant has been driven and then the model is simulated in close loop hardware in LabVIEW software using the rest of power plant parts. Appropriate PID coefficients for power plants are calculated in the simulations. Also flywheel effect on the performance of frequency controlling is surveyed and the flywheel with an appropriate inertia is designed for each power plant. Finally, all three kinds of power plants are tested and the results are compared with modeling results
  9. Keywords:
  10. Frequency Control ; Synchronous Generator ; Proportional-Integral-Derivative (PID)Controller ; Micro Hydro Turbine ; Flywheel

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