Title :
DSP-based fuzzy-tuning repetitive control of an inverter
Author :
Jian, Li ; Yong, Kang ; Jian, Chen
Author_Institution :
Dept. of Electr. Eng., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
The fuzzy-tuning repetitive control of an inverter is described in this paper. The repetitive controller functions as an auxiliary controller to modify the reference command by adding a periodic compensation signal. On the other hand, the output voltage error and its derivative are used as input variables of the fuzzy logic controller (FLC) to adjust the feed-forward gain of the system. The control scheme is implemented using a TI TMS320F240 DSP in a 400 Hz 6 kW prototype. Experimental results prove that the proposed control scheme is able to produce a low THD during steady-state operation and fast transient responses.
Keywords :
DC-AC power convertors; PWM invertors; compensation; control system synthesis; digital control; digital signal processing chips; feedforward; fuzzy control; harmonic distortion; power conversion harmonics; power engineering computing; transient response; tuning; 400 Hz; 6 kW; DSP-based fuzzy-tuning repetitive control; THD; TMS320F240 DSP; control design; feed-forward gain; inverter; output voltage error; periodic compensation signal; reference command modification; steady-state operation; transient responses; Control systems; Digital signal processing; Error correction; Feedforward systems; Fuzzy logic; Input variables; Inverters; Prototypes; Steady-state; Voltage control;
Conference_Titel :
Power Electronics and Drive Systems, 2001. Proceedings., 2001 4th IEEE International Conference on
Print_ISBN :
0-7803-7233-6
DOI :
10.1109/PEDS.2001.975344
