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http://dx.doi.org/10.6113/TKPE.2013.18.5.466

Three-Phase Z-Source PWM Rectifier Based on the DC Voltage Fuzzy Control  

Qiu, Xiao-Dong (Dept. of Electrical Engineering, Chonnam Nat'l Univ.)
Jung, Young-Gook (Dept. of Electrical Engineering, Daebul University)
Lim, Young-Cheol (Dept. of Electrical Engineering, Chonnam Nat'l Univ.)
Publication Information
The Transactions of the Korean Institute of Power Electronics / v.18, no.5, 2013 , pp. 466-476 More about this Journal
Abstract
This paper describes a fuzzy control method to control the output voltage of the three-phase Z-source PWM rectifier. A fuzzy control system is a control system based on fuzzy logic, and the fuzzy controller uses a single input fuzzy theory with its fuzzification. Analytical structure of the simplest fuzzy controller is derived through the triangular membership functions with its fuzzification. By setting the membership functions of the fuzzy rules, fuzzy control is achieved. The PI portion of the output DC voltage controller is controlled by fuzzy method. To confirm the validity of the proposed method, the simulation and experiment were performed, The simulation is performed with PSIM and MATLAB/SIMULINK. For the experiment, we used a DSP(TMS320F28335) controller to compute the reference value and generate the PWM pulses. For the transient state performance of the output DC voltage control of Z-source PWM rectifier, the PI controller and fuzzy controller were compared, also the conventional PWM rectifier and Z-source PWM rectifier were compared. From the results, the Z-source rectifier could allow to buck or boost of the output DC voltage. Through the analysis of the transient state, we could observe that the fuzzy controller has better performance than the conventional PI controller.
Keywords
fuzzy control; PI control; z-source PWM rectifier; output DC voltage control; sinusoidal input current; SPWM control;
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Times Cited By KSCI : 1  (Citation Analysis)
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