Voltage Regulation in Buck–Boost Converters Feeding an Unknown Constant Power Load: An Adaptive Passivity-Based Control

Soriano-Rangel, C. A.; He, Wei; Mancilla–David, Fernando; Ortega, Roméo

doi:10.1109/tcst.2019.2959535

Cited by 55 publications

(34 citation statements)

References 32 publications

(43 reference statements)

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“…The elements of x * are selected to achieve the control objectives and fixed by a secondary level controller. The reference of the DC-link voltage is selected as v * dc = V * dc (constant), i * Bat comes from (29), and i * PV is obtained from a maximum power point tracker (MPPT) algorithm such as an incremental conductance (IC) algorithm [9,34].…”

Section: Ida-pbc Controlmentioning

confidence: 99%

“…In order to implement the proposed controller, voltages and currents in the system must be measured. In addition, the calculation of the battery current reference, (29), requires knowledge of the power value of the CPL, P CPL .…”

Section: Load Power Estimationmentioning

confidence: 99%

“…The most outstanding features of IDA-PBC are its stability and the simplicity in parameter determination, even for global controllers with multiple converters. The most popular applications of this approach to solve the CPL effect shows the stability and performance on DC-DC power converters allocated in a DC MG system [7,10,19,25,29,30]. On isolated MGs, IDA-PBC was applied as secondary controller in [31] and as a global controller in [32], but considering only linear and nonlinear loads.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Voltage Regulation of an Isolated DC Microgrid with a Constant Power Load: A Passivity-based Control Design

et al. 2021

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Passivity-based nonlinear control for an isolated microgrid system is proposed in this paper. The microgrid consists of a photovoltaic array and a battery energy storage connected to a point of common converters, supplying a constant power load. The purpose of this control strategy is to maintain the output direct current voltage in its reference value under load variations, improving battery interaction. The system is represented by its state space averaged model and the proposed controller is designed using the interconnection and damping assignment strategy, which allows obtaining controller parameters while ensuring the closed-loop system stability. The unknown constant power load is estimated using an observer based on the energy function of the system. The behavior of the proposed control strategy is validated with simulation and experimental results.

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Section: Ida-pbc Controlmentioning

confidence: 99%

Section: Load Power Estimationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Voltage Regulation of an Isolated DC Microgrid with a Constant Power Load: A Passivity-based Control Design

et al. 2021

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“…The experimental results revealed that the proposed PID-based fuzzy logic controller reduced an integral square error as well as the overshoot value. The voltage regulation of a buck-boost converter was proposed by Soriano-Rangel et al (2020) that utilize an adaptive passivity-based control in the power distributed systems. This approach employs the cascaded converter connection to construct a feedback controller.…”

Section: Review Of Related Workmentioning

confidence: 99%

Fuzzy logic controller-based boost and buck-boost converter for maximum power point tracking in solar system

Rajavel¹,

Prabha²

2020

Transactions of the Institute of Measurement and Control

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Due to the concern with energy emergencies, the energy obtained from the sunlight is considered as the most capable conventional resources. Hence, the maximum power point tracking approach is necessary for obtaining the enhanced efficiency from the solar panels. In the case of direct current (DC) application, the output obtained from the photo-voltaic (PV) array cannot be directly connected to the electronic devices. For regulating the output from the PV array, the DC-DC converter is provided in between the load and the array. The converter design plays a significant role to track the maximum power point of the solar panel. This paper describes the design of three converters, namely the boost, buck-boost and buck converter, along with the fuzzy logic controller. It varies the time for switching ON and OFF of the converter concerning changes in the solar panel power. The result of converter power and solar panel for different irradiation is compared for various DC-DC converters. The fuzzy logic controller is employed in the generation of optimal control pulse for the DC-DC converter. Moreover, in the solar photovoltaic system, the steady-state operation is performed and the various solar irradiance results are analyzed. The proposed approach is compared with the various DC-DC converters like buck-boost converter, buck converter and boost converter to prove the efficiency. Then, the performance analysis of the current, voltage and power of PV is analyzed.

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“…A passivity-based control was suggested in [ 13 ] to stabilize voltage fed to a microgrid. The proposed strategy achieved Lyapunov asymptotic stability through a state-feedback control law, which required an online invariance and immersion power estimator.…”

Section: Introductionmentioning

confidence: 99%

Fractional-Order Approximation of PID Controller for Buck–Boost Converters

et al. 2021

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Viability of a fractional-order proportional–integral–derivative (PID) approximation to regulate voltage in buck–boost converters is investigated. The converter applications range not only to high-power ones but also in micro/nano-scale systems from biomedicine for energy management/harvesting. Using a classic closed-loop control diagram the controller effectiveness is determined. Fractional calculus is considered due to its ability at modeling different types of systems accurately. The non-integer approach is integrated into the control strategy through a Laplacian operator biquadratic approximation to generate a flat phase curve in the system closed-loop frequency response. The controller synthesis considers both robustness and closed-loop performance to ensure a fast and stable regulation characteristic. A simple tuning method provides the appropriate gains to meet design requirements. The superiority of proposed approach, determined by comparing the obtained time constants with those from typical PID controllers, confirms it as alternative to controller non-minimum phases systems. Experimental realization of the resulting controller, implemented through resistor–capacitor (RC) circuits and operational amplifiers (OPAMPs) in adder configuration, confirms its effectiveness and viability.

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Voltage Regulation in Buck–Boost Converters Feeding an Unknown Constant Power Load: An Adaptive Passivity-Based Control

Cited by 55 publications

References 32 publications

Voltage Regulation of an Isolated DC Microgrid with a Constant Power Load: A Passivity-based Control Design

Voltage Regulation of an Isolated DC Microgrid with a Constant Power Load: A Passivity-based Control Design

Fuzzy logic controller-based boost and buck-boost converter for maximum power point tracking in solar system

Fractional-Order Approximation of PID Controller for Buck–Boost Converters

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