Cascaded two level inverter based grid connected photovoltaic system: Modelling and control

Kumar, Nayan; Saha, Tapas Kumar; Dey, Joykrishna

doi:10.1109/icit.2014.6894985

Cited by 15 publications

(3 citation statements)

References 9 publications

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“…A similar objective is achieved with a single-stage different power circuit using a cascaded two-level inverter (CTLI) instead of a dc-dc intermediate converter presented in reference [18]. Moreover, the chosen CTLI can perform with less harmonic content in output, as suggested in the existing reference [24].…”

Section: Introductionmentioning

confidence: 95%

Progressive Step Maximum Power Tracker for Cascaded Inverter Induction Motor Drive

GHOSH,

SAHA

2024

RRST-EE

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This paper presents the idea of an isolated photovoltaic (PV) based cascaded two-level inverter (CTLI), driving squirrel cage induction motor (SCIM). The connected non-linear load approximately represents a centrifugal pump. The control system of this drive is based on a motor control system along with a progressive step perturb and observe (PSPnO) maximum power point tracking (MPPT) technique for the PV sources towards better utilization of the source. This PSPnO MPPT system intends to operate the SCIM so that the energy developed by PV is utilized entirely through variation of the dc-link voltages of the CTLI under both uncertain variances of non-linear load torque and unpredictable solar irradiance. This PSPnO MPPT algorithm has been engaged in the control scheme for generating reference dc-link voltage. This motor control system is designed to operate in a rotor-flux-oriented rotating reference frame. As for generating CTLI’s switching pulses, the space vector pulse width modulation (SVPWM) technique has been used for its good dynamic response. The whole system is designed to be deployable on a low-computation device. The simulations conducted by Simulink and the results are furnished considering various operational conditions.

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Section: Introductionmentioning

confidence: 95%

Progressive Step Maximum Power Tracker for Cascaded Inverter Induction Motor Drive

GHOSH,

SAHA

2024

RRST-EE

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“…According to the properties of I-V cells, the values of these two resistances are used to determine [11]. This model, which has been utilized in several prior publications [9], [6] and [19] offers a fair balance between accuracy and model complexity. Combining the equations ( 1) and ( 2…”

Section: ░ 2 Model For Photovoltaic Systemmentioning

confidence: 99%

Controlling of Cascaded Voltage Source Two Level Inverter Based Grid Connected PV System by Using SVPWM and Quadratic Boost Converter

Basha

Nagaraju²

2022

IJEER

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In this paper, two cascaded voltage source grid-connected inverters (VSI) with Quadratic boost converter (QBC) has been described and simulated as more attractive for a grid to interface with the PV system. The simulation is carried out by using the open loop control method to synchronize the grid with the photovoltaic system and these two inverters are controlled with the Sinusoidal Pulse Width Modulation (SPWM) approach and SV Pulse Width Modulation (SVPWM) skill technique for dynamic behavior. These two inverters individually operate as two-level inverters and after cascading with the transformer will get the three-level output voltage and it is interfaced to a three-phase ac grid. To interface PV system with Grid here using a two-stage method which includes DC to DC converter, three-phase voltage source inverters and cascaded transformer for analyzing dc output voltage, active power and harmonic distortion of current. The Quadratic Boost Converter (QBC) is used to convert from DC to DC for injecting DC supply voltage into the cascading three-phase inverters. In this paper, the entire system is carried out by using with QBC and without QBC and compares the output voltages and total harmonic distortion of current at the grid side.

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“…According to [2], the world total PV capacity has increased at an average annual rate of 55% in the period 2009-2013. This way, the development, modeling, and control of PV systems have captured particular attention [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Takagi–Sugeno State Delayed Feedback and Integral Control for PV Systems: Modeling, Simulation, and Control

Aiss

Barbosa

Chávez

et al. 2021

International Journal of Photoenergy

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The integration of the large-scale photovoltaic systems has experienced significant growth, which is similarly expected to occur with small-scale photovoltaic systems. Since small-scale systems must be simple in cost-effective components, control strategies must be implemented in low complexity circuits. However, current maximum power point tracking (MPPT) algorithms are generally complex and require electronic components to support variable control gains for different irradiance conditions, preventing simple MPPT implementations suitable for small-scale photovoltaic systems. This paper proposes a new control strategy to tackle the power tracking problem of the power systems. First, a dynamic model of the photovoltaic system is described and converted into a Takagi–Sugeno (T-S) model. Then, an MPPT scheme is proposed in series with a fixed integral and a fuzzy gain state delay feedback controller, which avoids the need for a variable control gain, simplifying the electronic implementation of the control strategy. New delay-dependent stabilization conditions based on the Lyapunov-Krasovskii functional are proposed in terms of a convex optimization problem, where the delayed feedback and integral gains are designed simultaneously. Simulation results using Matlab and Simulink are used to validate the proposed method.

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Cascaded two level inverter based grid connected photovoltaic system: Modelling and control

Cited by 15 publications

References 9 publications

Progressive Step Maximum Power Tracker for Cascaded Inverter Induction Motor Drive

Progressive Step Maximum Power Tracker for Cascaded Inverter Induction Motor Drive

Controlling of Cascaded Voltage Source Two Level Inverter Based Grid Connected PV System by Using SVPWM and Quadratic Boost Converter

Takagi–Sugeno State Delayed Feedback and Integral Control for PV Systems: Modeling, Simulation, and Control

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