ZETA Converter with PI Controller
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2019 by IJETT Journal|
|Year of Publication : 2019|
|Authors : Srishti Sharma, Ritesh Diwan
|DOI : 10.14445/22315381/IJETT-V67I2P207|
MLA Style: Srishti Sharma, Ritesh Diwan "ZETA Converter with PI controller" International Journal of Engineering Trends and Technology 67.2 (2019): 33-36.
APA Style:Srishti Sharma, Ritesh Diwan (2019). ZETA Converter with PI controller. International Journal of Engineering Trends and Technology, 67(2), 33-36.
Dc-dc Zeta converter is a buck-boost type of converter, which yields dc output voltage with same polarity that of the input voltage. It is widely used in various domestic and industrial applications. For good voltage regulation, fast dynamic response, and stable operation of this converter, a feedback control design is necessary. Therefore, in this paper, the duty cycle to output voltage small-signal transfer function of dc-dc Zeta converter is obtained using state-space technique and Leverrier algorithm. Then this transfer function is used for designing a PI controller using stability equations to meet specific phase margin and desired cross-over frequency. The simulation results display that compensated Zeta converter exhibits good dynamic and steady-state behaviour in presence of line and load variations.
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PI controller, zeta converters, Simulink model