Title :
Implement of high power NPC three-level inverter equipped with IGCTs
Author :
Ge, Qiongxuan ; Wang, Xiaoxin ; Zhang, Shutian ; Li, Yaohua ; Kong, Li
Author_Institution :
Inst. of Electr. Eng., Chinese Acad. of Sci., Beijing
Abstract :
This paper presents a high power three-level inverter equipped with integrated gate-commutated thyristor (IGCT) devices. The power system consisting of a twelve-pulse rectifier and a three-level neutral point clamped (NPC) inverter. A TMSF240 DSP controller is used for filled with PWM strategy. A valid PWM control strategy is proposed which can improve the performance of inverter operating in low switching frequency. Due to the three-level configuration and the valid PWM control method the output harmonic is improved. The experimental of single IGCT device and three phase system demonstrated that both the power circuit and control system are designed reasonable and valid. The implementation inverter can be widely used in adjustable drive system (ADS)
Keywords :
PWM invertors; digital signal processing chips; power system control; rectifying circuits; thyristor applications; DSP controller; IGCT; PWM control strategy; TMSF240; adjustable drive system; high power NPC three-level inverter; integrated gate-commutated thyristor devices; low switching frequency; output harmonic; power circuit system; power control system; three-level neutral point clamped inverter; twelve-pulse rectifier; Circuits; Control systems; Digital signal processing; Power system harmonics; Power systems; Pulse width modulation; Pulse width modulation inverters; Rectifiers; Switching frequency; Thyristors;
Conference_Titel :
Industrial Technology, 2005. ICIT 2005. IEEE International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
0-7803-9484-4
DOI :
10.1109/ICIT.2005.1600697
