Robust observer-based DC-DC converter control

Shaker, Montadher Sami; Kraidi, Asaad A.

doi:10.1016/j.jksues.2017.08.002

Cited by 5 publications

(3 citation statements)

References 13 publications

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“…The traditional ferrite-based cores require a very high number of turns (typically 300 turns) compared to the amorphous Fe-based Nanocrystalline core that has been used in this design. According to the core datasheet, it requires 22 turns at 400V Vbus only in the primary side at the same frequency [23], [24]. The transformer turns ratio for the designed system can be calculated using (1) [7].…”

Section: Hardware Implementationmentioning

confidence: 99%

Design and implementation of bi-directional converter with internet of things control based reading

Abdullah

Homod

Ahmed

2021

IJEECS

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In this paper, a new technique to monitor and control bidirectional DC-DC converter was designed and implemented precisely. A prototype of a complete system is verified with efficient communication capabilities. This system is realized by integrating the internet of things (IoT) operating system and the bidirectional DC-DC converter. The IoT communication facilities further develop and extend the platform for this system. The DC-DC converter with the soft switching technique will then convert the battery voltage to a high voltage of 380V inverter bus in emergencies via boost converter mode. High-frequency toroidal transformer has been used for power level shifting and isolation between the primary and secondary sides of the transformer. The closed-loop control scheme is implemented in software by using a high-performance 32-bit STM32 micro controller. IoT technique is used to find current, voltage and perform the communication smoothly through Wi-Fi sensors to complete the design of the system. The results of the proposed system prove the effectiveness of the proposed system with high-performance specifications.

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Section: Hardware Implementationmentioning

confidence: 99%

Design and implementation of bi-directional converter with internet of things control based reading

Abdullah

Homod

Ahmed

2021

IJEECS

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“…So, the practical problem of chattering will be solved. Particularly, boundary layerbased control schemes allow multicell converters to operate with a fixed switching frequency [29][30][31][32][33][34][35]. This strategy will be fully covered in the rest of our work.…”

Section: Introductionmentioning

confidence: 99%

Robust Adaptive Feedforward Sliding Mode Current Controller for Fast-Scale Dynamics of Switching Multicellular Power Converter

Hamdi¹,

Hamida²,

Bennis³

et al. 2021

Adv. sci. technol. eng. syst. j.

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Higher efficiency and lower losses are widely considered as the best metrics to optimize, in a high-power converter performance context. To provide a solution to the ever-increase of high switching frequencies challenges, we must explore soft-switching technologies to resolve interface issues and reduce the switching losses. This manuscript describes a comparative analysis between the fixed-bandwidth (FBW) and the variable-bandwidth (VBW) of the hysteresis modulation (HM) based on the conventional sliding mode (CSM) strategy. The two adopted techniques are applied to a bidirectional multichannel DC-DC asynchronous Buck converter. The cells are parallel-connected and operating in continuous conduction mode (CCM). The objective is to have a system that is more stable, more efficient and able to cope with variations in input voltage, load and desired output voltage. That requires, first, to attenuate the non-linearity phenomenon of the conventional sliding mode by placing a hysteresis modulation. Then, after applying this technique, we confronted the dilemma of the variable switching frequency. Our hypothesis was to incorporate a variable bandwidth of the hysteresis modulation. The results obtained under parametric variation clearly show the areas where significant differences have been found between the two approaches. Likewise, they both share several key features. Simulation studies in the MATLAB ® / Simulink ™ environment are performed to analyze system performance and assess its robustness and stability.

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“…In addition to cost reduction, the observer may be used for fault detection as well as for robust control. Another benefit is the plausibility to deal with the required control objectives, such as power optimization and control in renewable energy systems . However, in the literature, little attention has been paid to the PV current observer.…”

Section: Introductionmentioning

confidence: 99%

Observer‐based control of a photovoltaic DC–DC buck converter: HDS approach

Dali

Diaf

Tadjine

2019

Asian Journal of Control

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In this paper, a new observer-based controller is proposed for a photovoltaic DC-DC buck converter; both photovoltaic (PV) voltage and current regulation are considered. In order to deal with the complex and nonlinear PV mathematical model and adapt it to the control purpose, a hybrid PV current observer model is proposed; three modes are defined and the stability of the observer is discussed using the hybrid dynamical system approach (HDS). The observer-based controller is designed for both voltage and current regulation of the PV system; the closed loop of the full system stability is demonstrated through Lyapunov analysis. Experimental results are also presented showing the feasibility of the proposed observer-based controller.

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Robust observer-based DC-DC converter control

Cited by 5 publications

References 13 publications

Design and implementation of bi-directional converter with internet of things control based reading

Design and implementation of bi-directional converter with internet of things control based reading

Robust Adaptive Feedforward Sliding Mode Current Controller for Fast-Scale Dynamics of Switching Multicellular Power Converter

Observer‐based control of a photovoltaic DC–DC buck converter: HDS approach

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