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Title:SAMONASTAVLJIVI PD REGULATOR ZA DC/DC PRETVORNIK NAVZDOL OSNOVAN NA ALGORITMU TEORIJE ROJEV DELCEV
Authors:Gjura, Dejan (Author)
Šafarič, Riko (Mentor) More about this mentor... New window
Files:.pdf MAG_Gjura_Dejan_2016.pdf (2,67 MB)
 
Language:Slovenian
Work type:Master's thesis (m2)
Typology:2.09 - Master's Thesis
Organization:FERI - Faculty of Electrical Engineering and Computer Science
Abstract:Tema magistrske naloge je regulacijska proga, v kateri kot proces nastopa klasičen DC-DC pretvornik navzdol. Pretvornik je reguliran s klasičnim PD regulatorjem. Parametra PD regulatorja nista poznana in se določata ter optimirata s pomočjo ATRD (algoritem teorije rojev delcev). Parametra je potrebno določit tako, da bo odziv DC-DC pretvornika v skladu s predpisano dinamiko izhodne napetosti DC-DC pretvornika. Za opisan problem je bil najprej zgrajen simulacijski računalniški model, ki je bil testiran na simulacijskem vezju, realiziranem v programskem paketu MATLAB SIMULINK. Simulacija je pokazala, da je mogoče z ATRD zelo dobro določiti optimalna parametra PD regulatorja. Tako dobljena parametra regulatorja sta dovolj kakovostna, da lahko z njima brez težav reguliramo pretvornik tako, da je odziv v skladu s predpisano dinamiko izhodne napetosti DC-DC pretvornika. Izdelano je bilo tudi eksperimentalno vezje, s pomočjo katerega se je v realnosti testirala zgoraj opisana aplikacija. ATRD, regulator, AD pretvornik, sklop za generiranje pulzno širinsko moduliranih signalov ter ostali pomožni sklopi so realizirani s pomočjo mikrokrmilnika dsPIC. Stikalna frekvenca DC-DC pretvornika znaša 50 kHz. Testi so potrdili možnost izvajanja regulacije v realnem času.
Keywords:pretvornik navzdol, ATRD, nelinearno vodenje, dsPIC implementacija
Year of publishing:2016
Publisher:D. Gjura
Source:[Maribor
UDC:621.372.54(043)
COBISS_ID:20004886 Link is opened in a new window
NUK URN:URN:SI:UM:DK:EEDSX4PD
Views:569
Downloads:70
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:KTFMB - FERI
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Secondary language

Language:English
Title:Self-tuning PD-controller for buckconverter based on particle swarm algorithm
Abstract:The theme of the master's thesis is the control line, in which a process performs the classic DC-DC buck converter. The converter is regulated by conventional PD controller. PD controller parameters are not known and shall provide and optimize using PSO (particle swarm optimisation). The parameters should be set so that the response of the DC-DC converter stands in accordance with the specified dynamic output voltage of DC-DC converter. Described problem was first simulated and tested on a simulation circuit, realized in the software package MATLAB SIMULINK. This simulation showed that it is possible with a stiff very well to determine the optimal parameters of PD controller. The resulting control parameters are of sufficient quality to enable them to easily regulate the converter so that the response is in accordance with the specified dynamic output voltage of the DC-DC converter. An experimental circuit was made through which it was in reality tested the above-described application. PSO, regulator, AD converter, device to generate a pulse-width modulated signals and other auxiliary units are realized using the dsPIC microcontroller. The switching frequency of the DC-DC converter is 50 kHz. Tests confirmed the possibility of exercising control in real time.
Keywords:buck converter, PSO, non-linear control, dsPIC implementation


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