Sliding mode controller for extraction and supply of photovoltaic power using switched series parallel sources reduced switch count multilevel inverter

Gowd, G. Eshwar; Sreenivasarao, Dharmavarapu; Vemuganti, Hari Priya

doi:10.1049/pel2.12068

Cited by 4 publications

(4 citation statements)

References 28 publications

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“…Commonly, the typical control algorithms of the grid-tied system are proportional-integral control [7], sliding model control [8], repetitive control and model predictive control (MPC) [9][10][11]. The MPC attracts substantial attentions due to optimize the conflicting control objectives, fast dynamic response and avoid modulation strategy [10,11].…”

Section: Introductionmentioning

confidence: 99%

Model predictive power control with Kalman filter for grid‐tied inverter with parameter variation

Tang

Zhang

2022

IET Power Electronics

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Model predictive power control is considered to be a promising control algorithm owing to its simple structure and fast dynamic response. This algorithm relies heavily on the predictive model and the parameter variation adds the difficulty to gain the accurate model, which affects the static performance of the grid‐tied inverter. Here, a model predictive power control with Kalman filter (MPPCKF) is proposed to address above issue. On the basis of the grid‐current predictive model, the mathematical model is gotten to estimate the AC‐filter inductance and a Kalman filter is introduced to suppress the noise interference of calculating inductance. Finally, a simulation and an experimental platform are established to demonstrate the validity of the proposed approach. The results exhibit that the MPPCKF can effectively suppress the grid‐current distortion and the active‐/reactive‐power ripple of grid‐tied inverter caused by the mismatched predictive power model.

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Section: Introductionmentioning

confidence: 99%

Model predictive power control with Kalman filter for grid‐tied inverter with parameter variation

Tang

Zhang

2022

IET Power Electronics

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“…Recently, much attention has been reserved to power converter controllers mainly because switching mode power supplies (SMPS) are applied in photovoltaic, 1,2 wind turbines, 3,4 electrical vehicles 5,6 and circuits for the power factor correction using different approaches as delta‐sigma modulation, 7 neural network structures, 8 soft computing techniques 9 and input current shaping 10 …”

Section: Introductionmentioning

confidence: 99%

Boost converter load estimation by a sliding mode approach

Corradini

Ippoliti

Orlando

2022

Circuit Theory & Apps

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Summary The control system for a boost converter with load uncertainties has been considered. A discontinuous boost converter model is considered taking into account also the inductor parasitic resistance and the diode threshold voltage. Exploiting the dynamics, internal and external, of the converter, a sliding mode regulator of the voltage has been designed by a change of coordinates. The load has been estimated by a sliding mode observer. The proposed solution has been numerically tested using a powerful software simulation platform.

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“…Multilevel inverter (MLI) topologies are employed to generate the required voltage from multiple input DC voltage sources [1,2]. The output voltage and current quality improve as the number of output voltage levels increases.…”

Section: Introductionmentioning

confidence: 99%

“…The output voltage and current quality improve as the number of output voltage levels increases. Furthermore, the output filter sizes, as well as the voltage stresses on semiconductor devices, can be decreased [2]. Additionally, as the switching frequency is minimized, the efficiency of the MLI topologies is high [3].…”

Section: Introductionmentioning

confidence: 99%

Hybrid cascaded MLI development for PV‐grid connection applications

Noman

Al-Shamma’a

Asef

et al. 2022

IET Power Electronics

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For grid‐connected solar photovoltaic (PV) applications, a hybrid cascaded MLI (H‐CMLI) topology based on cascaded H‐bridge MLI is proposed in this study. The proposed configuration is a hybrid of two common MLIs: Cascaded H‐bridge and three‐phase cascaded voltage source inverter (VSI). For the same voltage level, the proposed topology enhances the number of the generated voltage levels while employing fewer components, relative to other traditional MLI topologies. Furthermore, the voltage stresses on switches in the proposed topology are decreased, compared to when each part operates independently. The proposed topology could be utilized for many applications, such as PV‐grid connection, active power filters, and STATCOM. To verify the effectiveness of the proposed topology, the model is developed in MATLAB/Simulink environment, in which a closed‐loop control scheme based on the traditional one is used to achieve the PV‐grid connection. Alongside the simulation results, the proposed topology and its control scheme are experimentally implemented in the laboratory. Two cases were experimentally applied to validate the successful performance of the proposed H‐CMLI: Open‐loop control and closed‐loop control for PV‐grid integration. The proposed control scheme effectively maintains the DC link voltage at its reference voltages. Also, the closed‐loop control scheme is capable of providing the power factor at unity and maintaining the total harmonic distortion (THD) of grid current within the acceptable limit. To demonstrate the proposed topology's functionality and viability, experimental results are provided.

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Sliding mode controller for extraction and supply of photovoltaic power using switched series parallel sources reduced switch count multilevel inverter

Cited by 4 publications

References 28 publications

Model predictive power control with Kalman filter for grid‐tied inverter with parameter variation

Model predictive power control with Kalman filter for grid‐tied inverter with parameter variation

Boost converter load estimation by a sliding mode approach

Hybrid cascaded MLI development for PV‐grid connection applications

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