Robust H&lt;inf&gt;&amp;#x221E;&lt;/inf&gt; output feedback control design applied to Uninterruptible Power Supplies

Sari, Bilal; Benkhoris, Mohamed Fouad; Claire, J.C. Le; Rabhi, Boualaga

doi:10.1109/isie.2012.6237136

Cited by 3 publications

(3 citation statements)

References 36 publications

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“…In another study [25], a robust Sliding Mode Controller (SMC) was designed, which performed well even in the presence of model parameter mismatch and disturbances in the grid voltage. Robust H ∞ controllers were developed in [26]- [28] using Linear Matrix Inequalities to solve the H ∞ norm optimization problem, considering different performance criteria. Additionally, an Active Disturbance Rejection Control (ADRC) was developed in [29] for the inner current control loop of a VSC.…”

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confidence: 99%

Robust Model Predictive Control of a Renewable Energy Converter Under Parametric Uncertainty Conditions

Costa,

Lunardi,

Fernandes

et al. 2024

IEEE Open J. Power Electron.

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The advanced control technique Model predictive control (MPC) is gaining popularity in power electronics for converters with distributed energy resources. It combines closedloop control and minimizes errors and control effort. As a model-based control technique, MPC's performance can degrade due to plant disturbances, such as parametric errors or large perturbations in grid voltage or load current. Our research used an MPC with modulation on a converter connected to the grid with an inductive filter for integrating renewable energy sources. The margin of robust stability (RS), derived from the singular Value Decomposition (SVD), provides a theoretical investigation of the robustness of the MPC controller tuning in dependency on the cost function weight factors and the time horizons. In the experiments conducted on a 2 kW workbench, it was confirmed that the proposed controller is stable and robust in nominal and under severe parametric uncertainty conditions, addressing the power quality criteria defined in IEEE Std. 519-2014. The experimental results show that the proposed MPC controller tuning outperforms the classical PI current controller in nominal conditions and is more robust to uncertainty in the passive filter of the grid-connected converter.

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mentioning

confidence: 99%

Robust Model Predictive Control of a Renewable Energy Converter Under Parametric Uncertainty Conditions

Costa,

Lunardi,

Fernandes

et al. 2024

IEEE Open J. Power Electron.

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“…Ainda em [8] Muitos autores que pesquisam a aplicação da teoria de controle robusto para o rastreamento de tensão do filtro série utilizam-se do método de projeto H∞, como por exemplo [11], [12], [13], [14], [15], [16], [17], [18], [19] e [20]. Contudo, algumas dessas pesquisas divergem em pontos do projeto de controle, principalmente no que diz respeito à utilização de multimalhas de controle (malha interna de corrente e malha externa de tensão) e à clareza na definição dos índices que especificam os graus de estabilidade e desempenho, tanto para rastreamento de sinal de referência, quanto para rejeição de distúrbio.…”

Section: Estrutura De Controle Para Rastreamento De Tensãounclassified

“…Já o trabalho apresentado em [12] [11], [15] e [16]. Não se tem a clara definição do erro máximo em regime e e/ou da rejeição de distúrbio.…”

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Projeto de controlador robusto para rastreamento de tensão aplicado a um restaurador dinâmico de tensão (DVR).

Ferrari¹

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The Dynamic Voltage Restorer (DVR) is a power electronics based solution for mitigation of voltage sags and swells effects on sensitive loads, which basically injects voltages in series with the grid. Typically the controller structure for a DVR is composed by an inner current loop and an outer voltage loop. Usually a proportional or a proportional-integral controller is used for the current loop and a resonant controller is used for the voltage loop. This paper presents the design of a robust controller for the voltage tracking loop of a DVR that guaranties the robust stability against load parameters variation. Moreover, the proposed controller assures the tracking of a sinusoidal voltage waveform, as well the rejection of the non linear load current influence, both with a pre specified error. The voltage controller design is based on H∞ mix-sensitivity parameter specification approach. All the performance and robustness requirements are specified and analyzed based on the frequency response plot of closed loop transfer function (sensitivity and complementary sensitivity functions). The proposed controller performance is validated by simulation and by experiments carried out on a low scale DVR prototype.

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LQR and H-infinity Control of Voltage Source Inverters for AC Microgrids

Tenorio

Scarpetta

Andrade

2020

2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)

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Robust H<inf>∞</inf> output feedback control design applied to Uninterruptible Power Supplies

Cited by 3 publications

References 36 publications

Robust Model Predictive Control of a Renewable Energy Converter Under Parametric Uncertainty Conditions

Robust Model Predictive Control of a Renewable Energy Converter Under Parametric Uncertainty Conditions

Projeto de controlador robusto para rastreamento de tensão aplicado a um restaurador dinâmico de tensão (DVR).

LQR and H-infinity Control of Voltage Source Inverters for AC Microgrids

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