A Simple, Efficient, and Novel Standalone Photovoltaic Inverter Configuration With Reduced Harmonic Distortion

Bhukya, Muralidhar Nayak; Kota, Venkata Reddy; Depuru, Shobha Rani

doi:10.1109/access.2019.2902979

Cited by 160 publications

(58 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Besides, it increases the complexity and cost due to adding external hardware to the system and does not deal with inverter protection. Some studies were introduced to manage the PQ issues such as voltage harmonics [50], current harmonics [32], flicker problem [23], and voltage unbalance [21] in order to meet the recent requirements concerning the PV penetration at the PCC. By comparing the results of these strategies with the proposed method, in most cases, the proposed method was better.…”

Section: Comparison Between Proposed and Existing Methodsmentioning

confidence: 99%

Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements

et al. 2020

View full text Add to dashboard Cite

The generation and integration of photovoltaic power plants (PVPPs) into the utility grid have increased dramatically over the past two decades. In this sense, and to ensure a high quality of the PVPPs generated power as well as a contribution on the power system security and stability, some of the new power quality requirements imposed by different grid codes and standards in order to regulate the installation of PVPPs and ensure the grid stability. This study aims to investigate the recent integration requirements including voltage sag, voltage flicker, harmonics, voltage unbalance, and frequency variation. Additionally, compliance controls and methods to fulfill these requirements are developed. In line with this, a large-scale three-phase grid-connected PVPP is designed. A modified inverter controller without the use of any extra device is designed to mitigate the sage incidence and achieve the low-voltage ride-through requirement. It can efficiently operate at normal conditions and once sag or faults are detected, it can change the mode of operation and inject a reactive current based on the sag depth. A dynamic voltage regulator and its controller are also designed to control the voltage flicker, fluctuation, and unbalance at the point of common coupling between the PVPP and the grid. The voltage and current harmonics are reduced below the specified limits using proper design and a RLC filter. The obtained results show that the proposed controller fulfilled the recent standard requirements in mitigating power quality (PQ) events. Thus, this study can increase the effort towards the development of smooth PVPP integration by optimizing the design, operation and control strategies towards high PQ and green electricity.

show abstract

Section: Comparison Between Proposed and Existing Methodsmentioning

confidence: 99%

Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements

et al. 2020

View full text Add to dashboard Cite

show abstract

“…PCM should discharge the stored thermal energy before the next sunshine (overnight), else the next day PCM would not be able to initiate the absorption effectively. (12) where m PCM is the mass of PCM; C PCM is the storage capacity of PCM; h cond,PCM→Al is the conduction heat transfer between PCM and PCM back sheet (W/m 2• C); h conv,Al→surr is the convection heat transfer between PCM back sheet and surrounding (W/m 2• C); h rad,Al→surr is the radiation heat transfer between PCM back sheet and surrounding (W/m 2• C) ; T PCM is the PCM temperature ( • C); T Al is the PCM back sheet temperature ( • C); and T surr is the surrounding temperature ( • C). Equation (13) represents three different phases of PCM during thermal energy storage.…”

Section: Energy Balance For Conduction Sourced Pcmmentioning

confidence: 99%

“…A great amount of research work is also carried out on PV materials to improve the efficiency of PV panel [6,7]. The PV system can be operated on a standalone basis or in grid connected mode [8][9][10][11][12]. Crystalline silicon solar cell converts 1/5th of the photon into electrical energy, while some is reflected, and this reflection can be controlled by coating a thin layer of Al 2 O 3 and Ta 2 O 5 [13], and the rest is almost converted into thermal energy.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations Conducted for the Characteristic Study of OM29 Phase Change Material and Its Incorporation in Photovoltaic Panel

Elavarasan¹,

Velmurugan

Subramaniam

et al. 2020

Energies

View full text Add to dashboard Cite

The solar photovoltaic (PV) system is emerging energetically in meeting the present energy demands. A rise in PV module temperature reduces the electrical efficiency, which fails to meet the expected energy demand. The main objective of this research was to study the nature of OM29, which is an organic phase change material (PCM) used for PV module cooling during the summer season. A heat transfer network was developed to minimize the experimental difficulties and represent the working model as an electrical resistance circuit. Most existing PV module temperature (TPV) reduction technology fails to achieve the effective heat transfer from the PV module to PCM because there is an intermediate layer between the PV module and PCM. In this proposed method, liquid PCM is filled directly on the back surface of the PV module to overcome the conduction barrier and PCM attains the thermal energy directly from the PV module. Further, the rear side of the PCM is enclosed by tin combined with aluminium to avoid any leakages during phase change. Experimental results show that the PV module temperature decreased by a maximum of 1.2 °C using OM29 until 08:30. However, after 09:00, the OM29 PCM was unable to lower the TPV because OM29 is not capable of maintaining the latent heat property for a longer time and total amount of the PCM experimented in this study was not sufficient to store the PV module generated thermal energy for an entire day. The inability of the presented PCM to lower the temperature of the PV panel was attributed to the lower melting point of OM29. PCM back sheet was incapable of dissipating the stored PCM’s thermal energy to the ambient, and this makes the experimented PCM unsuitable for the selected location during summer.

show abstract

“…Hossein et al [13], proposed a novel flexible scheme to regulate active power generated. The flexible tracking modulates the performance under static conditions by PI controller [14]. Anjanee et al [15], presents a new configuration to nullify zero ripple current and maximize the efficiency using SEPIC converter for a standalone water pumping system.…”

Section: Introductionmentioning

confidence: 99%

An Effective Design and Implementation of Hybrid MPP Tracking Scheme Based on Linear Tangents & Neville Interpolation (LT-NI) Technique for Photovoltaic (PV) System

Bhukya

Kota

Depuru³

et al. 2021

IEEE Access

Self Cite

View full text Add to dashboard Cite

Solar power is free from environmental pollution and also offers economic benefits to the investors. In order to optimize at most solar power, tracking schemes are employed and traditional schemes from the family of perturbation suffer from slow response, due to specific step size disruption and oscillations around operating point. Therefore, this paper proposes an effective design and implementation of a hybrid Maximum Power Point Tracking (MPPT) scheme based on Linear Tangents-Neville Interpolation (LT-NI) techniques. Two tangents are drawn on the P-V characteristics at 75% and 90% of open circuit voltage (VOC).The chosen two tangents intersect and gives rise to a third voltage (N) point. In continuation, the three voltage points (0.75VOC, N & 0.9VOC) are computed using Neville Interpolation. The performance of the proposed LT-NI scheme is compared with Perturb & Observe (P&O) and advanced Divide and Conquer (DC) algorithms.

show abstract

A Simple, Efficient, and Novel Standalone Photovoltaic Inverter Configuration With Reduced Harmonic Distortion

Cited by 160 publications

References 24 publications

Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements

Power Quality Assessment of Grid-Connected PV System in Compliance with the Recent Integration Requirements

Experimental Investigations Conducted for the Characteristic Study of OM29 Phase Change Material and Its Incorporation in Photovoltaic Panel

An Effective Design and Implementation of Hybrid MPP Tracking Scheme Based on Linear Tangents & Neville Interpolation (LT-NI) Technique for Photovoltaic (PV) System

Contact Info

Product

Resources

About