Capacitor voltage control of PV based quasi-z-source inverter

Yadav, Arvind; Bajaj, Mohit; Jurado, Francisco; Kamel, Salah

doi:10.1109/gpecom55404.2022.9815698

Cited by 5 publications

(6 citation statements)

References 13 publications

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“…Tree-Level Inverter Topology. In the year 1981, inverters of three-level topology were introduced [6,7]. Since then and now, they are widely used in many applications such as pulse width modulation rectifers, high voltage DC, active power flters (APFs), static compensators, motor drives, and renewable energy applications [7,8].…”

Section: Three-level Inverter Topology and Consideration Of Its Volta...mentioning

confidence: 99%

“…It is assumed normally that the capacitor voltages are balanced to avoid even-harmonic injection and power ripple efects on AC side voltages [7,9]. In diferent applications, the methods for balancing capacitor voltages are discussed and studied in many papers [6,7,[9][10][11][12][13][14][15][16].…”

Section: Three-level Inverter Topology and Consideration Of Its Volta...mentioning

confidence: 99%

“…Calculation of the generation of the reference vector with three variables T 1 , T 2 , and T 3 is performed by substituting the values of three diferent vectors (n � 3) in equation (1). Calculation of timing segments applies various methods of PWM vector described in [6,7,[9][10][11][13][14][15]. Te space vector diagram for the NPC inverter of three-phase threelevel for DC-link balanced capacitors is shown in Figure 1(b) [6].…”

Section: Strategies For Balancingmentioning

confidence: 99%

“…As many countries are dependent on nonrenewable resources such as coal, petroleum, and natural gas for electricity generation, there is an energy crisis and environmental problems. Clean electricity generation necessitates renewable energy sources such as solar PV and wind generation systems [1][2][3][4][5][6][7][8][9][10]. Te power extracted from solar PV is controlled by implementing suitable algorithms to improve power electronic systems.…”

Section: Introductionmentioning

confidence: 99%

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Grid-Connected Solar PV System with Maximum Power Point Tracking and Battery Energy Storage Integrated with Sophisticated Three-Level NPC Inverter

Kishore¹,

Muni

Raja³

et al. 2023

International Transactions on Electrical Energy Systems

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In this research, a solar photovoltaic system with maximum power point tracking (MPPT) and battery storage is integrated into a grid-connected system using an improved three-level neutral-point-clamped (NPC) inverter. An NPC inverter with adjustable neutral-point clamping may achieve this result. To achieve this result, a modernized NPC inverter is used. Using the three-level vector modulation approach, the correct AC voltage may be generated when DC voltage conditions are present in an unbalanced situation involving an NPC inverter. A higher degree of precision is made possible by this. In-depth information on the many possible NPC inverter designs and modulation strategies was provided. By incorporating the necessary sophisticated algorithms into the NPC inverter, the necessary solar PV-MPPT functionality is made available, allowing for the regulation of power transfer among the solar PV system, the battery, and the grid. Modified INC method is proposed which has a tracking efficiency of 99.5% for varying irradiance. The use of sufficiently sophisticated algorithms makes this a reality. Using simulation with MATLAB/Simulink, we were able to examine an NPC inverter’s performance in several setups. Several amounts of solar irradiation were used to test the battery’s charging and discharging capabilities. The probe turned out to be fruitful. Laboratory testing ensures that the proposed method works by simulating real-world conditions.

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Section: Three-level Inverter Topology and Consideration Of Its Volta...mentioning

confidence: 99%

Section: Three-level Inverter Topology and Consideration Of Its Volta...mentioning

confidence: 99%

Section: Strategies For Balancingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Grid-Connected Solar PV System with Maximum Power Point Tracking and Battery Energy Storage Integrated with Sophisticated Three-Level NPC Inverter

Kishore¹,

Muni

Raja³

et al. 2023

International Transactions on Electrical Energy Systems

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“…They showed that the proposed method makes the output duty cycle vary dynamically so that the DC-link voltage can follow the desired value. Yadav [3] utilized an indirect control method of capacitor voltage to design a DC-link voltage sliding mode controller, incorporating inductor current error, capacitor voltage error, and the integral of capacitor voltage error as state variables. The performed analyses revealed that the developed method effectively stabilizes the system over a wide range of operations.…”

Section: Introductionmentioning

confidence: 99%

DC‐Link Voltage Control Strategy of High‐Gain Bidirectional Quasi‐Z Source Inverter

Xu,

Yan,

Zhu

et al. 2023

IEEJ Transactions Elec Engng

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This article presents an improved method combining active disturbance rejection control (ADRC) and sliding mode control (SMC) to address the problem of non‐minimum phase characteristics of high‐gain bidirectional quasi‐Z source inverters. The present study is specifically targeting the robustness of the DC‐link voltage. Firstly, a high‐gain bidirectional quasi‐Z source inverter is proposed, enabling high‐gain and bidirectional energy flow. The operation principle is analyzed, and the topology with non‐minimum phase characteristics is obtained through small signal modeling. To overcome the non‐minimum phase characteristic, the active disturbance rejection control‐sliding mode control (ADRC‐SMC) method is employed to control the DC‐link voltage indirectly by controlling the capacitor voltage. Building upon the principles of ADRC using the FAL function, an improved nonlinear function called HFAL function is proposed. The nonlinear state error feedback law is implemented using a designed sliding‐mode controller that introduces an exponential convergence law. Simulation and experimental results demonstrate the superior robustness of the improved ADRC‐SMC method in controlling the DC‐link voltage of the high‐gain bidirectional quasi‐Z source inverter, effectively avoiding system jitter and enhancing the overall system immunity. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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An empirical survey of topologies, evolution, and current developments in multilevel inverters

Ezhilarasan,

Mohanraj,

Vishnuram

et al. 2023

Alexandria Engineering Journal

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Capacitor voltage control of PV based quasi-z-source inverter

Cited by 5 publications

References 13 publications

Grid-Connected Solar PV System with Maximum Power Point Tracking and Battery Energy Storage Integrated with Sophisticated Three-Level NPC Inverter

Grid-Connected Solar PV System with Maximum Power Point Tracking and Battery Energy Storage Integrated with Sophisticated Three-Level NPC Inverter

DC‐Link Voltage Control Strategy of High‐Gain Bidirectional Quasi‐Z Source Inverter

An empirical survey of topologies, evolution, and current developments in multilevel inverters

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