Title :
A universal power loss estimator for three level IGCT converter
Author :
Luyao Xie ; Guoqing Weng ; Jun Qi ; Youbing Zhang
Author_Institution :
Coll. of Inf. Eng., Zhejiang Univ. of Technol., Hangzhou, China
Abstract :
A power loss estimation method for IGCT NPC-3L converter is discussed in this paper. The undetermined coefficients in switching loss calculation are obtained through double-pulse test. Traditional loss calculation method based on formula is restricted by one particular modulation strategy and the estimation is inaccuracy due to idealized working conditions. To solve this problem, a universal NPC-3L power loss simulation estimator suitable for any modulation strategies is presented. Output current ripple and DC link voltage fluctuation are also considered in the estimator. Through power electronic building block (PEBB) half bridge power test, the accuracy of the estimator is verified to meet the engineering requirements.
Keywords :
bridge circuits; clamps; estimation theory; modulation; switching convertors; thyristor applications; DC link voltage fluctuation; PEBB; double-pulse testing; half bridge power testing; integrated gate-commutated thyristor; modulation strategy; neutral point clamped; output current ripple; power electronic building block; switching loss calculation method; three level IGCT NPC-3L converter; universal NPC-3L power loss simulation estimation method; Clamps; Heat sinks; Inductance; Modulation; Semiconductor diodes; Switches; Switching loss; IGCT; PEBB; converter; neutral point clamped(NPC); power loss; threei-level;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2014 17th International Conference on
Conference_Location :
Hangzhou
DOI :
10.1109/ICEMS.2014.7013910
