PDF (Thesis) - Nottingham eTheses - University of Nottingham

CHAPTER 1: INTRODUCTION
experimental tests at full power will be carried out, to demonstrate the functionality of
the converter with the EMI filter fitted.
1.8 Structure of the thesis
Chapter 2 will deal with the experimental implementation of the matrix converter used
for this work, starting with a description of the matrix converter concept, followed with
the details of the components of the actual implementation and a description of the
improvements made to the experimental setup. The chapter will conclude with some
experimental measurements of the converter running at rated voltage.
Chapter 3 illustrates the high frequency modelling strategy adopted for the IM and the
matrix converter, where the models’ parameter identification is based on experimental
impedance measurements and genetic algorithm optimization to fit the model’s pa-
rameters to the data acquired.
Chapter 4 will provide the HF models for all the components of the experimental setup,
starting with a description on the models existing in the literature, followed by further
improvements needed to match the impedance measurements. Novel models for the
motor, the converter and the cables will be suggested, to be included in a HF simulation
to estimate the actual emissions.
Chapter 5 includes the drive system experimental emission measurements, starting
with the requirements provided in the standard DO-160E, followed by directions on
how to use the instruments and a procedure to calibrate current probes. The last section
will group the drive’s emissions, measured with such a procedure, that will need to be
attenuated to satisfy the regulations.
Chapter 6 reports the performed simulations, with a brief introduction on how to in-
clude in the Saber Simulator the controller’s code in its native language. A low fre-
quency simulation, used to validate the model comparing the real output voltages with
the simulated ones will be then explained, followed by the full characterization of the
whole system at high frequency to estimate properly the emissions.
Chapter 7 will initially deal with the details of the output filter design starting with the
identification of the required attenuation, then a simulation to validate the component’s
choice, and finally an HF modelling of the filter will be presented. It will conclude
with the design of the input filter, that for time limitation has not been experimentally
implemented.
Chapter 8 will report the experimental results obtained with the aforementioned out-
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