Robust output regulation of Zeta converter with load/input variations: LMI approach

Bayat, Farhad; Karimi, M.; Taheri, Asghar

doi:10.1016/j.conengprac.2018.10.023

Cited by 22 publications

(13 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The transformer types were deemed too expensive and higher voltage gain can be attained by two things, turn-ratio and duty-cycle of the transformer [10]. The transformerless types have duty cycle only as a requisite to achieve higher voltage gain, some of their structures are well exploited in the literature [2], [15][16][17]. A conventional boost converter is transformerless and it has a good duty cycle, but the voltage gain is always lower than expectations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Extended Sepic DC-DC Converter for Micro-Grid Based Photovoltaic (Pv) Applications.

Isah

Abdu

Hajara

2022

Preprint

View full text Add to dashboard Cite

Background The demands for clean energy is growing rapidly and the fossil fuel we use in our everyday live is ushered in CO2 and other greenhouse effects, resulting in natural disasters and other climate threats. To continue on this route, the world is challenged to prepare for the unknown disasters. Hence, the search for a clean, alternative energy resource, which could bring resilience back to our cities is in incredibly rapid velocity. Solar energy is a clean and alternative energy that can be use but PV panels tend to generate low energy in nature which is why a lot of panels have to be employed in order to go off-grid. A simple DC-DC converter can be used to boost the energy generated by PV panels. Provided herein is an extended DC-DC single ended primary inductor converter (SEPIC) for micro-grid based photovoltaic (PV) applications. The new topology was designed with an addition of some components to the conventional SEPIC. Results The extended SEPIC topology utilizes a single power switch with high voltage gain, low duty-cycle, reduced voltage stress across the power switch, low density and cheap. The new topology was designed with an addition of some components to the conventional SEPIC. A 125 V DC output was generated from a 12 V DC input through MATLAB/SIMULINK. The new SEPIC converter revealed the best value voltage gain as 10.42, duty-cycle value of 0.8 and voltage stress of 62.5 V compared to the conventional SEPIC or SEPIC integrated with other converters. Conclusions the results of voltage gain, duty-cycle and voltage stress obtained validate the credibility of the new converter and show the potentiality of the converter for the adoption in power step-up applications.

show abstract

Section: Introductionmentioning

confidence: 99%

“…A transformerless SEPIC is promising only when it is integrated with another converter or incorporated with voltage doubler [4], [14]. Zeta and Cuk converters exhibits Buck-Boost behavior which is not viable for step up application [15]. The aforementioned problems have led researchers to quest for more methods.…”

Section: Introductionmentioning

confidence: 99%

An Extended Sepic DC-DC Converter for Micro-Grid Based Photovoltaic (Pv) Applications.

Isah

Abdu

Hajara

2022

Preprint

View full text Add to dashboard Cite

show abstract

“…DC-DC converters are widely employed in various electric power supply systems, such as DC motor drives, computers, cars, ships, aircraft, photovoltaic systems, etc. [1][2][3][4]. In those applications where the desired output voltage is smaller than the input voltage a common choice is the buck converter.…”

Section: Introductionmentioning

confidence: 99%

Adaptive Global Sliding Mode Controller Design for Perturbed DC-DC Buck Converters

et al. 2021

Self Cite

View full text Add to dashboard Cite

This paper proposes a novel adaptive intelligent global sliding mode control for the tracking control of a DC-DC buck converter with time-varying uncertainties/disturbances. The proposed control law is formulated using a switching surface that eliminates the reaching phase and ensures the existence of the sliding action from the start. The control law is derived based on the Lyapunov stability theory. The effectiveness of the proposed approach is illustrated via high-fidelity simulations by means of Simscape simulation environment in MATLAB. Satisfactory tracking accuracy, efficient suppression of the chattering phenomenon in the control input, and high robustness against uncertainties/disturbances are among the attributes of the proposed control approach.

show abstract

“…However, model uncertainties and disturbances that affect the operation of the converter were ignored. A robust switching strategy was developed by Bayat et al (2019) by modifying the previous paper, where the model uncertainties, input and load disturbances were also included in the synthesis process. The optimal controller was obtained using LMI formulations based on sophisticated convex optimization.…”

Section: Introductionmentioning

confidence: 99%

Robust structured controller synthesis for interleaved boost converters using an H_∞ control method

Keskin

Aliskan

Daş

2021

Transactions of the Institute of Measurement and Control

View full text Add to dashboard Cite

The regulation of output voltage and equivalent distribution of phase currents of multi-phase converters which have non-minimum phase characteristic are still challenges, especially in the presence of uncertainties in real parameters, duty cycle, input voltage, and load disturbances. However, in classical third-order integral-lead (Type-III) controller design methodologies, the controller is synthesized considering only the nominal performance conditions. This paper proposes a structured [Formula: see text] synthesis framework based on an optimization methodology to the design of a robust Type-III controller for interleaved boost converters. The structured [Formula: see text] control approach is adapted for optimization of Type-III feedback and feedforward controllers in two-degree-of-freedom (2-DOF) control system configuration. The robust stability of the closed-loop interleaved boost converter system against model uncertainties is ensured via the classical [Formula: see text]-analysis technique. Numerical comparisons are made among the classical, i.e. unstructured or full order, [Formula: see text]-based controller design method, a dual-loop PI controller, and proposed 1-DOF and 2-DOF structured controller synthesis approaches on an interleaved boost converter model. Simulation results verify the effectiveness and advantages of the proposed approach from the viewpoint of the output voltage regulation under different disturbance points.

show abstract

Robust output regulation of Zeta converter with load/input variations: LMI approach

Cited by 22 publications

References 15 publications

An Extended Sepic DC-DC Converter for Micro-Grid Based Photovoltaic (Pv) Applications.

An Extended Sepic DC-DC Converter for Micro-Grid Based Photovoltaic (Pv) Applications.

Adaptive Global Sliding Mode Controller Design for Perturbed DC-DC Buck Converters

Robust structured controller synthesis for interleaved boost converters using an H_∞ control method

Contact Info

Product

Resources

About

Robust output regulation of Zeta converter with load/input variations: LMI approach

Cited by 22 publications

References 15 publications

An Extended Sepic DC-DC Converter for Micro-Grid Based Photovoltaic (Pv) Applications.

An Extended Sepic DC-DC Converter for Micro-Grid Based Photovoltaic (Pv) Applications.

Adaptive Global Sliding Mode Controller Design for Perturbed DC-DC Buck Converters

Robust structured controller synthesis for interleaved boost converters using an H∞ control method

Contact Info

Product

Resources

About

Robust structured controller synthesis for interleaved boost converters using an H_∞ control method