IDA-PBC controller of a DC-DC boost converter for continuous and discontinuous conduction mode

Serra, Federico M.; Magaldi, Guillermo L.; Fernandez, Lucas Martin; Larregay, Guillermo; Angelo, Cristian H. De

doi:10.1109/tla.2018.8291454

Cited by 11 publications

(5 citation statements)

References 11 publications

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“…This method included a parameter estimation-based observer for the converter inductor current. Finally, the authors of [26] presented a nonlinear control based on the interconnection and damping assignment (IDA) PBC strategy to regulate the output voltage of a boost-type DC-DC converter.…”

Section: Literature Reviewmentioning

confidence: 99%

“…PBC is a well-founded theory that is supported by Lyapunov analysis and exploits the advantages of the port-Hamiltonian modeling of physical systems to design closed-loop controllers that maintain the pH structure of the system by modifying their internal energy behavior [29]. There are multiple approaches based on PBC theory, such as standard PBC design [30], interconnection and damping assignment (IDA-PBC) [26], the energy shaping PBC approach [31], and PBC with PI gains for purely bilinear systems [27]. The nature of the open-loop pH model determines the selection of a particular PBC theory to design a controller for a physical system.…”

Section: Adaptive Pi+pbc Designmentioning

confidence: 99%

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Adaptive Sensorless PI+Passivity-Based Control of a Boost Converter Supplying an Unknown CPL

et al. 2022

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This paper presents an adaptive control to stabilize the output voltage of a DC–DC boost converter that feeds an unknown constant power load (CPL). The proposed controller employs passivity-based control (PBC), which assigns a desired system energy to compensate for the negative impedance that may be generated by a CPL. A proportional-integral (PI) action that maintains a passive output is added to the PBC to impose the desired damping and enhance disturbance rejection behavior, thus forming a PI+PBC control. In addition, the proposed controller includes two estimators, i.e., immersion and invariance (I&I), and disturbance observer (DO), in order to estimate CPL and supply voltage for the converter, respectively. These observers become the proposed controller for an adaptive, sensorless PI+PBC control. Phase portrait analysis and experimental results have validated the robustness and effectiveness of the adaptive proposed control approach. These results show that the proposed controller adequately regulates the output voltage of the DC–DC boost converter under variations of the input voltage and CPL simultaneously.

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Section: Literature Reviewmentioning

confidence: 99%

Section: Adaptive Pi+pbc Designmentioning

confidence: 99%

Adaptive Sensorless PI+Passivity-Based Control of a Boost Converter Supplying an Unknown CPL

et al. 2022

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“…In DCM mode, there are three operation areas that are specified by the switch status S and the inductor current I L waveform as (Serra et al 2018;Tan et al 2007):…”

Section: Cascaded Boost Converters Dynamic Modelmentioning

confidence: 99%

Flatness-Based Decentralized Adaptive Backstepping Control of Cascaded DC–DC Boost Converters Using Legendre Polynomials

Shoja-Majidabad

2020

J Control Autom Electr Syst

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In this paper, decentralized adaptive backstepping control of cascaded DC-DC boost converters is studied in the presence of load and voltage uncertainties and interactions between the converters. First, a cascaded boost converter average model that covers both continuous and discontinuous conduction modes is extracted. Afterward, flatness property is applied to transfer the cascaded system states into a semi-canonical form. Further, a novel decentralized backstepping controller is proposed to track the reference voltages. In this control strategy, Legendre polynomials are utilized to estimate the uncertainties and interactions adaptively. The control method is simple and robust with less computational burden due to the polynomial estimator's application. Various simulations are performed for the cascaded DC-DC boost converters to indicate the effectiveness and performance of the proposed controller under the load and supply voltage changes.

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“…Borrowing these results, this control method is also proposed for ZVS quasi‐resonant boost converter [28]. In [29, 30], the authors propose the PBC algorithm for boost converter under mixed conduction mode. It is noted that both controllers need the exact information of resistance load and input voltage, which can not be achieved in practical application.…”

Section: Introductionmentioning

confidence: 99%

Stabilization of DC–DC buck converter with unknown constant power load via passivity‐based control plus proportion‐integration

Namazi

Koofigar

et al. 2021

IET Power Electronics

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It is known that constant power load (CPL) may cause a negative impedance, which seriously affects the stability of power system. In this paper, a new control algorithm for DC–DC buck converter feeding unknown CPL is proposed. First, under the assumption of known extracted power load, the standard passivity–based control (PBC) is presented to reshape the system energy and compensate for the negative impedance and a proportion‐integration (PI) action around passive output is added to improve disturbance rejection performance, which forms the PBC plus PI (PBC+PI). Then, a parameter estimation algorithm is developed, based on immersion and invariance (I&I) technique, in order to online estimate the extracted power load. In the next step, the online estimation scheme is adopted to construct an adaptive strategy. Finally, the stability analysis of the cascaded system containing a closed‐loop control system and observer error dynamics is conducted. Simulation and experimental results are demonstrated to validate the performance of the proposed controller.

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IDA-PBC controller of a DC-DC boost converter for continuous and discontinuous conduction mode

Cited by 11 publications

References 11 publications

Adaptive Sensorless PI+Passivity-Based Control of a Boost Converter Supplying an Unknown CPL

Adaptive Sensorless PI+Passivity-Based Control of a Boost Converter Supplying an Unknown CPL

Flatness-Based Decentralized Adaptive Backstepping Control of Cascaded DC–DC Boost Converters Using Legendre Polynomials

Stabilization of DC–DC buck converter with unknown constant power load via passivity‐based control plus proportion‐integration

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