Title :
Investigation of direct-frequency converter
Author :
Huaidong, Peng ; XiaoFan, Li
Author_Institution :
Fac. of Traffic Sci. & Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
The direct-frequency converter (DFC) has more advantages than the traditional DC-link AC-DC-AC frequency converter. This paper introduces a direct-frequency converter using bi-directional switches. Its operation principle is discussed in detail and the ripple component attended by aborting the DC-link in the equivalent input voltage is analyzed. A DPWM algorithm is employed to eliminate its influence on the output voltage. Computer simulation using MATLAB/SIMULINK is also presented to examine the performance of the algorithm. At last experimental results on a three-phase 50 Hz AC input, single-phase 400 Hz AC output circuits using the TMS320F240 as the controller are provided
Keywords :
AC-AC power convertors; PWM power convertors; circuit simulation; frequency convertors; power MOSFET; power engineering computing; power semiconductor switches; switching circuits; 400 Hz; 50 Hz; DC-link AC-DC-AC frequency converter; DPWM algorithm; MATLAB/SIMULINK; TMS320F240; bi-directional switches; computer simulation; direct-frequency converter; equivalent input voltage; ripple component; Analog-digital conversion; Bidirectional control; Circuits; Computer simulation; Digital-to-frequency converters; Frequency conversion; MATLAB; Switches; Switching converters; Voltage;
Conference_Titel :
Power Electronics and Drive Systems, 1999. PEDS '99. Proceedings of the IEEE 1999 International Conference on
Print_ISBN :
0-7803-5769-8
DOI :
10.1109/PEDS.1999.794565
