Design and experimental validation of an intelligent controller for DC–DC buck converters

Hyperchaos Synchronization Using T-S Fuzzy Model Based Synergetic Control Theory

“…Synergetic control (SC) theory offers a control framework based on a theory conceived to control non-linear dynamical processes. The SC techniques [11,18,19,22] can provide a kind of continuous control law, for driving the system states to regions/sets of attraction that correspond to the control purposes, and 60 then force the trajectories to stay on those regions. Some of basic SC concepts will be reviewed here before the proposed T-S fuzzy synergetic control scheme is introduced.…”

“…Recently, fuzzy control techniques have been widely and successfully used in modeling and control of nonlinear systems [11][12][13]. Especially, Takagi-Sugeno (T-S) fuzzy model [13][14][15][16][17] has been a popular choice in industrial processes due to its ability to represent the nonlinear system without complex mathematical equations.…”

“…The individual consequents are linear systems which can be analyzed by using the standard tools of linear systems theory. Indeed, the design of robust control methodologies which use fuzzy system techniques is being steadily more researched and extended, such as the integration of fuzzy sets and synergetic control (SC) can produce enhanced performances [11,18,19] resulting from the combination of the advantages of both techniques. The SC is a most propitious approach based on the invariance feature found in sliding mode control (SMC), yet devoid of its short coming: inherent chattering.…”

Robust Voltage Control of a Buck DC-DC Converter: A Sliding Mode Approach

“…The optimal use of the produced energy can be assumed only if the produced wind and photovoltaic sources' maximum power are extracted and tracked for any change in the metrological conditions. Tools to track these specific points are required [22][23][24][25][26][27].…”

“…In general, the DC link voltage must be fixed at a desired value despite input voltage and load variations [35]. To regulate the DC voltage magnitude, and obtain a constant and stable output voltage and fast response, many types of controllers are used [27], such as fuzzy logic, PI controllers, PID controllers, sliding mode control, etc. Conventional controllers are in general conceived by using small signal state equations obtained at a specific operation point.…”