Design and implementation of an AC voltage regulator based on series power semiconductor array
Vandy, F. (2014). Design and implementation of an AC voltage regulator based on series power semiconductor array (Thesis, Master of Engineering (ME)). University of Waikato, Hamilton, New Zealand. Retrieved from https://hdl.handle.net/10289/9006
Permanent Research Commons link: https://hdl.handle.net/10289/9006
This thesis describes the use of an array of power semiconductors (series transistor array) and a buck-boost transformer in the design and implementation of a single phase AC voltage regulator. The power semiconductor array was used to act as variable impedance across the bridge points of a rectifier. The input point of the bridge rectifier was also connected directly to the primary winding of the buck-boost transformer. A closed loop circuit was designed using an RMS/DC converter chip, with complete electrical isolation between the low voltage control circuits and the power circuits. The major advantages of this technique are: fast response to RMS voltage fluctuation; waveform fidelity; light weight; and reduced size compared to that of a servo-driven AC voltage regulator such as the PS10 Smart Power Station, which was used in this project as a benchmark for the AC voltage regulator using the power semiconductor array. The device used for testing the performances of both AC voltage regulators was the NoiseKen VDS-2002 Voltage Dip and Swell Simulator. This simulator was used to perform voltage dip, swell, interruption, and variation tests in a manner fully compliant with IEC 61000 – 4 – 11.
University of Waikato
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- Masters Degree Theses