An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter

Jahan, Sumaya; Biswas, Shuvra Prokash; Hosain, Md. Kamal; Islam, Md. Rabiul; Haq, Safa; Kouzani, Abbas Z.; Mahmud, Arafat

doi:10.3390/su13020505

Cited by 14 publications

(4 citation statements)

References 26 publications

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“…From survey, Pan et al (2020) need to correct voltage stability, Jahan et al (2021) require greater efficacy in the device, You et al (2021) requires full power device calculations, and Amroune et al (2020) is more resilient to tiny fluctuations in load levels by analyzing previous research. Manivasagam and Prabakaran (2020) should concentrate on voltage interference, reactive power loss, harmonic current and noise to improve power efficiency.…”

Section: Literature Surveymentioning

confidence: 99%

“…However, this method does not provide a precise approximation of the voltage stability boundary in a power flow. Jahan et al (2021) suggested a proportional integral resonance controller with the input of a harmonic compensator and a lead compensator (PIR þ HC þ LC), to improve the power efficiency and different dynamic responses of a neutral-point clamped converter-fed gridtied PV system. This resulted in outstanding PV array output voltage efficiency as well as good inverter performance under abrupt load shifts and power system disruptions.…”

Section: Introductionmentioning

confidence: 99%

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Voltage instability curtailment and quality improvement with phasor measurement unit in power system

Preeti

Rani²

2022

COMPEL

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Purpose The earlier methods are more resilient to improvements such as load shift and path change. This results in problems such as a voltage drop and a high reactive flux. In addition, due to the delay, congestion or interruption of the transmission, the system cannot receive all phasor measurement unit (PMU) measurements at the relevant time as well as the presence of noise in the received data. Design/methodology/approach With the development of wide area measurement system technologies, it seems to be possible to track voltage stability online via time-stamped PMUs. As the voltage instability causes a voltage decomposition, voltage instability is one of the most important problems when monitoring the power supply. Findings This harmonic distortion significantly decreases the data quality in the grid. As a result, instability ascertainment based on PMU has been suggested as a method for detecting voltage instability in power systems monitored with PMU. In addition, a technique called instability amendment via load dropping has been proposed to keep the device from collapsing due to voltage failure. Originality/value To improve the power output, the power prominence melioration technique was developed. This proposed system has been implemented in MATLAB Simulink and compared with the recent researches.

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Section: Literature Surveymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Voltage instability curtailment and quality improvement with phasor measurement unit in power system

Preeti

Rani²

2022

COMPEL

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“…PV system structure consists of PV panels, DC/DC converter, DC/AC inverter, grid-connected L filter and control systems as shown in Fig. 2 [6]. The simplified model of elements and controllers built in MALAB/Simulink can be seen in Fig.…”

Section: Structure and Model Of Grid-connected Pvmentioning

confidence: 99%

Dynamic Phasor Model of Grid-Connected Photovoltaic System in MATLAB/Simulink Considering Low Voltage Ride through Characteristics for Voltage Stability Analysis of Power System

2022

JST: ETSD

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This paper proposes a model of grid-connected photovoltaic (PV) system with low voltage ride through (LVRT) characteristic in MATLAB/Simulink based on dynamic phasor approach. Unlike all PV system models available in MATLAB/Simulink using detailed model with small capacity, the proposed model focuses on control loops of PV system to simulate a large capacity system that is appropriate for voltage stability analysis of power system installing high penetration level of PV generation. An intuitive and convenient tool for adjusting the LVRT characteristics of the PV system is also developed. The effectiveness of dynamic phasor model and the impact of the LVRT characteristic of the PV system on voltage stability are examined through MATLAB/Simulink simulations conducted on IEEE 9-bus test system. The simulation results provide an insight of how the system integrated with a large PV generation behaves under the disturbances. It also points out that the LVRT of the PV system is very important to the power system voltage stability.

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“…In reference [25], a high‐gain transducer provides a non‐insulated overlay with a common control circuit. In practical coupling inductors, there is a leakage inductance due to the non‐ideal primary and secondary windings.…”

Section: Introductionmentioning

confidence: 99%

A hybrid scheme for optimal performance of photovoltaic system converters with multilayer structure

Zand

Nasab

Hanif

et al. 2022

The Journal of Engineering

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The interface of photovoltaic (PV) systems to the grid requires an efficient control strategy to operate, control, and improve power quality. The output voltage of the solar array, which may be accompanied by significant voltage variations, must be controlled and converted to a higher voltage for grid connection applications of photovoltaic system by a DC‐DC converter that commands more attention. Recently, due to the increasing use of renewable sources, multilayer structure with different structures and designs to provide power and stability has been researched because the output voltage of solar arrays is usually low, so it is increasing to DC‐to‐DC converters, needed with optimal interest and efficiency. In this paper, a method to improve the performance of DC–DC converter used in PV system by using a combined design of forward and fly‐back is presented. Due to the fact that isolated converters, flyback, and forward converters have a simple structure and are easy to control, but this converter is affected by high stress voltage. Therefore, this converter cannot be used for high power applications. To solve this problem, it has been improved in the proposed converter with the overlay and triple induction technique, which is a very good improvement on the voltage gain parameters in the short duty cycle. The voltage drop across the semiconductor switch is reduced. The investigations performed that the proposed DC/DC converter in Simulink MATLAB has been simulated. The results show that the suggested converter has an ideal efficiency of roughly 82.86% and provided higher voltage gain, decreased voltage stress, and reduced voltage jumps caused by disconnection.

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An Advanced Control Technique for Power Quality Improvement of Grid-Tied Multilevel Inverter

Cited by 14 publications

References 26 publications

Voltage instability curtailment and quality improvement with phasor measurement unit in power system

Voltage instability curtailment and quality improvement with phasor measurement unit in power system

Dynamic Phasor Model of Grid-Connected Photovoltaic System in MATLAB/Simulink Considering Low Voltage Ride through Characteristics for Voltage Stability Analysis of Power System

A hybrid scheme for optimal performance of photovoltaic system converters with multilayer structure

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