Title :
Analysis and comparison of power losses in 3L-NPC inverter with SHPWM control
Author :
Quan Chen ; Qunjing Wang ; Guoli Li ; Weidong Jiang
Author_Institution :
Res. Center for Power Quality Eng. Minist. of Educ., Anhui Univ., Hefei, China
Abstract :
The power losses of switch device are disadvantages that restrict the performance of a converter. Sub-harmonics PWM (SHPWM) is applied in modulation of three-level neural-point-clamped (3L-NPC) converter most widely. This paper analyzes and compares the conduction losses and switching losses for 3L-NPC converter for different SHPWM strategies (PDSPWM, PDTHIPWM, PDSVPWM and PDSLRPWM). The principle of PDSLRPWM is also described in this paper. Some interesting conclusions can be come to according to the simulation and analysis results.
Keywords :
PWM invertors; PWM power convertors; 3L-NPC inverter; PDSLRPWM; PDSPWM; PDSVPWM; PDTHIPWM; SHPWM control; conduction losses; power losses; sub-harmonics PWM; switch device; switching losses; three-level neural-point-clamped converter modulation; Harmonic analysis; Insulated gate bipolar transistors; Inverters; Pulse width modulation; Switches; Switching loss; conduction losses; sub-harmonic PWM; switching losses; three-level;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Print_ISBN :
978-1-4673-2327-7
