SPEC Seminar



The SPEC bi-weekly seminar will be held



Friday, September 16, 2005 at 1:00 PM


Partners 1 Building, Suite 1250


Centennial Campus



SPEAKER: Peter Yu Liu


My name is Peter Yu Liu, I received my bachelors degree in 1998 and masters degree in 2002 in Electrical Engineering from the Zhe Jiang University of China.



TOPIC: Trinary Multi-level Inverter Used in Unbalanced Voltages


This presentation focuses on the application of a trinary hybrid multilevel inverter in Synchronous Static Compensation (STATCOM) with unbalanced voltages. Benefiting from trinary hybrid topology of the inverter, the cost of STATCOM is reduced not only from fewer switching components but also the reduced cost of DC capacitors. The combination of vector control based on synchronous frame and staircase modulation is used in the presented STATCOM system to regulate reactive power or balance bus voltages under balanced or unbalanced conditions. To achieve this control goal, a new method based on the comparison of reference amplitudes and reference signals is presented in this paper. The performance of the proposed control strategy is confirmed by simulation and experiment.