A Comprehensive Review on Grid Connected Photovoltaic Inverters, Their Modulation Techniques, and Control Strategies

Khan, Muhammad Yasir Ali; Liu, Haoming; Yang, Zhihao; Xing, Yuan

doi:10.3390/en13164185

Cited by 81 publications

(71 citation statements)

References 205 publications

(197 reference statements)

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“…The VSI is composed of two independent control loops as illustrated in Figure 2; voltage and current [21]. The voltage control loop tracks the PV array's maximum power point (MPP) in any operating condition, e.g.…”

Section: Voltage Source Inverter Modelling For Islanding Detection Pu...mentioning

confidence: 99%

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Bakhshi‐Jafarabadi

Sadeh

Serrano‐Fontova

et al. 2022

IET Renewable Power Gen

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The connection of renewable energy sources (RESs) to the distribution network has been rising at a steady pace over the past decades. The great penetration of RESs such as grid-connected photovoltaic system brings new technical challenges to the distribution networks such as unintentional islanding. Conceptually, this situation occurs when a portion of the network that has been isolated from the main grid remains energised by the embedded RESs. This unexpected scenario should be thereby identified effectively to avoid frequency and voltage deviations and their hazardous effects. The aim of this paper is to provide a comprehensive review on the recently developed islanding detection methods for grid-following/grid-connected photovoltaic system, analyse their existing limitations, and suggest possible future research implementations. In this context, an in-depth comparison is provided considering the main features used in islanding detection methods such as non-detection zone, detection time, implementation cost and complexity, and power quality degradation. Finally, the main technical requirements established by the current grid codes are recalled identifying potential multi-functional approaches to expand the current islanding detection capabilities.

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Section: Voltage Source Inverter Modelling For Islanding Detection Pu...mentioning

confidence: 99%

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Bakhshi‐Jafarabadi

Sadeh

Serrano‐Fontova

et al. 2022

IET Renewable Power Gen

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“…Today, renewable energy technologies are developing rapidly. Solar cells are a rapidly evolving renewable energy source and play an important role in clean energy use [1][2][3]. Because the energy that comes from sunlight alone is endless.…”

Section: Introductionmentioning

confidence: 99%

A Modified-Simplified MPPT Technique for Three-Phase Single-State Grid-Connected PV Systems

Aurairat¹,

Plangklang²

2022

Computers, Materials &Amp; Continua

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Nowadays, the single state inverter for the grid-connected photovoltaic (PV) systems is becoming more and more popular as they can reduce circuit complexity resulting in less power losses of the inverter. This paper focuses on the use of model predictive control (MPC) to control a 3-phase and 2-level single-state grid-connected inverter in order to regulate the PV maximum power point (MPP). The algorithm of MPC scheme was done to measure the simultaneous current signal including predicting the next sampling current flow. The reference current (I d * ) was used to control the distribution of electrical power from the solar cell to the grid. To be able to control the maximum power point tracking (MPPT) when the sunlight suddenly changes, so that a developing MPPT based on estimation current perturbation and observation (ECP&O-MPPT) technique was used to control the reference current. This concept was experimented by using MATLAB/Simulink software package. The proposed technique was tested and compared with the old technique. The simulation results showed that the developed MPPT technique can track the MPP faster when the light changes rapidly under 1,000 W/m 2 , 25°C standard climatic conditions. The MPPT time was 0.015 s. The total harmonic distortion (THD) was 2.17% and the power factor was 1.

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“…To overcome these issues, researchers have proposed a self-balanced switched-capacitor multilevel inverter (SCMLI), which can synthesize the desired voltage levels at the output using fewer components and reduced control complexity [6][7][8][9][10][11][12]. Several SCMLIs has been presented by researchers utilizing fewer components to realize the desired multilevel output voltage.…”

Section: Introductionmentioning

confidence: 99%

“…To reduce the number of switches, the authors in [19] used 19 switches for generating voltage boosting of six, but the TSV of the inverter circuit increased to 39. A detailed review on the recently published multilevel inverter topologies to find the most suitable applications with reduced device count is published in [7][8][9][10][11][12]. In the case of lower solar PV voltages, a high gain DC-DC converter along with multilevel inverter can be used to boost the PV voltage for obtaining desired output voltage for grid integration [24][25][26].…”

Section: Introductionmentioning

confidence: 99%

A Single Source Switched-Capacitor 13-Level Inverter with Triple Voltage Boosting and Reduced Component Count

et al. 2021

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A new triple voltage boosting switched-capacitor multilevel inverter (SCMLI) is presented in this paper. It can produce 13-level output voltage waveform by utilizing 12 switches, three diodes, three capacitors, and one DC source. The capacitor voltages are self-balanced as all the three capacitors present in the circuit are connected across the DC source to charge it to the desired voltage level for several instants in one fundamental cycle. A detailed comparative analysis is carried to show the advantages of the proposed topology in terms of the number of switches, number of capacitors, number of sources, total standing voltage (TSV), and boosting of the converter with the recently published 13-level topologies. The nearest level control (NLC)-based algorithm is used for generating switching signals for the IGBTs present in the circuit. The TSV of the proposed converter is 22. Experimental results are obtained for different loading conditions by using a laboratory hardware prototype to validate the simulation results. The efficiency of the proposed inverter is 97.2% for a 200 watt load.

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A Comprehensive Review on Grid Connected Photovoltaic Inverters, Their Modulation Techniques, and Control Strategies

Cited by 81 publications

References 205 publications

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

Review on islanding detection methods for grid‐connected photovoltaic systems, existing limitations and future insights

A Modified-Simplified MPPT Technique for Three-Phase Single-State Grid-Connected PV Systems

A Single Source Switched-Capacitor 13-Level Inverter with Triple Voltage Boosting and Reduced Component Count

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