Title :
A 7.5 kW ultrasonic inverter motor drive employing MOS-controlled thyristors
Author :
Erdman, William ; Hudson, Raymond ; Yang, Jiangang ; Hoft, Richard G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Missouri Univ., Columbia, MO, USA
Abstract :
A MOS-controlled thyristor is presented for use as a high-speed power semiconductor with the potential for high voltage and current ratings. Distinctive features of the device are discussed relative to inverter topology, gate drive requirements, and fault protection. Design details for a 7.5 kW, 20 kHz inverter are discussed, including a modified pulse-width modulation (PWM) switching algorithm conductive to software implementation. The algorithm has fewer computational and storage requirements than do previous PWM methods. Implementation of the algorithm is accomplished by a digital signal processor using C language.<>
Keywords :
computerised signal processing; digital control; electric drives; electric motors; invertors; machine control; metal-insulator-semiconductor devices; pulse width modulation; thyristor applications; 20 kHz; 7.5 kW; C language; MOS-controlled thyristors; PWM; design; digital control; digital signal processor; fault protection; gate drive; high-speed power semiconductor; machine control; pulse-width modulation; ratings; software; switching algorithm; ultrasonic inverter motor drive; Algorithm design and analysis; Motor drives; Protection; Pulse inverters; Pulse width modulation; Pulse width modulation inverters; Signal processing algorithms; Thyristors; Topology; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96743
