Modeling and Analysis of a Fast and Robust Module-Integrated Analog Photovoltaic MPP Tracker

Maity, Somnath; Sahu, Pradeep Kumar

doi:10.1109/tpel.2015.2402281

Cited by 35 publications

(18 citation statements)

References 36 publications

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“…The gate signal of one switch is kept constant, while the phase of the other signal is varied. The voltage deference between the output capacitors, ∆V, is sensed and is used in a PI controller to calculate a pulse delay ratio, as shown in Equation (8). This delay is given to one of the switch pulse signal to move it either forward or backward with respect to the other pulse signal in order to compensate for the neutral point voltage.…”

Section: Closed-loop Controller Modellingmentioning

confidence: 99%

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Cross-Regulation Assessment of DIDO Buck-Boost Converter for Renewable Energy Application

Soman

Leijon

2017

Energies

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When medium-or high-voltage power conversion is preferred for renewable energy sources, multilevel power converters have received much of the interest in this area as methods for enhancing the conversion efficiency and cost effectiveness. In such cases, multilevel, multi-input multi-output (MIMO) configurations of DC-DC converters come to the scenario for integrating several sources together, especially considering the stringent regulatory needs and the requirement of multistage power conversion systems. Considering the above facts, a three-level dual input dual output (DIDO) buck-boost converter, as the simplest form of MIMO converter, is proposed in this paper for DC-link voltage regulation. The capability of this converter for cross regulating the DC-link voltage is analyzed in detail to support a three-level neutral point clamped inverter-based grid connection in the future. The cross-regulation capability is examined under a new type of pulse delay control (PDC) strategy and later compared with a three-level boost converter (TLBC). Compared to conventional boost converters, the high-voltage three-level buck boost converter (TLBBC) with PDC exhibits a wide controllability range and cross regulation capability. These enhanced features are extremely important for better regulating variable output renewable energy sources such as solar, wind, wave, marine current, etc. The simulation and experimental results are provided to validate the claim.

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Section: Closed-loop Controller Modellingmentioning

confidence: 99%

“…For the most part their applications are projected for photovoltaic (PV) systems [5][6][7][8]. However, they can be adopted for use with any renewable energy sources that have a DC-conversion stage.…”

Section: Introductionmentioning

confidence: 99%

Cross-Regulation Assessment of DIDO Buck-Boost Converter for Renewable Energy Application

Soman

Leijon

2017

Energies

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“…The first stage is a dc power conditioning step which consists of a dc-dc step up converter. This stage ensures the extraction of maximum power produced by the solar PV array by using an algorithm called maximum power point tracking (MPPT) controller [6] and also step-up the PV voltage produced by PV system to a voltage level required for the VSI. The second power processing unit can be achieved with the help of VSI.…”

Section: Introductionmentioning

confidence: 99%

Design of Multi-loop Current Control Strategies for LCL Filtered Grid-connected PV System

Sahu,

Jena,

Dei

2019

IJEAT

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This paper presents numerous feedback current controller methods for the grid-connected PV systems incorporating with third order LCL filter. The various potential dual-loop feedback current controller schemes for a grid-tied electrical converter and a comparison among these controllers are made based on their performance. The effectiveness of these current controllers are based on various views like performance under polluted grid condition and also the dynamic performance of two control schemes under different transient conditions. A commonly used PI controller are employed in all cases of multi-loop controllers and also the electrical converter used here is operated in voltage control mode. In this work, a third-order low-pass LCL filter is employed to minimize the high order harmonics which are created due to the switching of the converter. The LCL filter is incorporated among the dc-ac converter and the utility grid. Two current regulation techniques are focused here. The design, analysis and the performance of these controllers are briefly discussed in this paper. By comparing their performance, anyone can suggest their applications in the grid-tied PV systems. All the current control schemes are incorporated with a grid-connected system of 2-KVA voltage source inverter. Simulation results are produced to validate the performances of two current control schemes. The output ohmic resistance of VSI is taken into account here for their performance analysis.

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“…The criterion of reducing such loss mainly depends on DC-DC switched mode converters maintaining isolation to the connected load by providing of maximum operating voltage VMPP with the help of a MPPT controller [4][5]. An analog circuitry based MPPT controller with the sliding mode controllers introduced to enhance the output and to get better performance under dynamic conditions have been presented [6][7]. The output voltage is sampled several times to oversample switching frequency ratio.…”

Section: Introductionmentioning

confidence: 99%

Indirect Vector Controlled Asynchronous Motor Drive’s Dynamic Performance and Analysis with A New Modified MPPT Controller

Pakkiraiah¹,

Ratnakanth²,

Haribabu³

et al. 2018

IJET

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Generation of electricity from the PV system has nowadays chosen as a best energy collecting source, due to its abundance availability and also to save the conventional energy sources to the future generation. Because all the conventional sources are coming to an extinct. That is the reason, everybody are looking towards the available renewable energy resources like wind, solar, bio mass, ocean, tidal and geothermal. But, upon those, solar and wind sources are maximum preferred sources, due to their easy availability and easy way of collection of energy. This paper presents a modeling of solar photovoltaic (PV) array with a new modified maximum power point tracking (MPPT) controller, which enhances the PV system performance even at abnormal weather conditions. That the existed MPPT controllers were developed based upon the ideal characteristics of constant irradiance with variable temperature and constant temperature with variable irradiance. To overcome the above problem a practical data is considered for designing of MPPT controller which is based upon variable irradiance. But here, it is developed with the variable irradiance and variable temperature with better performance of the system. The output obtained from the PV with a new modified MPPT is given to the boost converter with an inverter to find the dynamic performance of an indirect vector controlled asynchronous motor drive under different operating conditions. For inverter control, a space vector modulation (SVM) algorithm is used, in which the calculation of switching times is proportional to the instantaneous values of the reference phase voltages. The dynamic performance responses like phasor current, torque and speed of the drive by the new modified MPPT along with SVM controlling technique of the inverter are compared and analyzed with the existed method for different operating conditions.

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Modeling and Analysis of a Fast and Robust Module-Integrated Analog Photovoltaic MPP Tracker

Cited by 35 publications

References 36 publications

Cross-Regulation Assessment of DIDO Buck-Boost Converter for Renewable Energy Application

Cross-Regulation Assessment of DIDO Buck-Boost Converter for Renewable Energy Application

Design of Multi-loop Current Control Strategies for LCL Filtered Grid-connected PV System

Indirect Vector Controlled Asynchronous Motor Drive’s Dynamic Performance and Analysis with A New Modified MPPT Controller

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