Flying capacitor voltage balance and neutral point voltage regulation of PV array fed active neutral point clamped converter in real‐time HIL

Mishra, Nidhi; Yadav, Shivam; Singh, Bhim; Padmanaban, Sanjeevikumar; Blaabjerg, Frede

doi:10.1049/iet-pel.2019.1144

Cited by 6 publications

(5 citation statements)

References 32 publications

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“…We have fault analysis of grid connected solar PV system comparison of various optimization algorithm based on power quality issues. Simulation results line-ground (LG) fault and line-line-line-ground (LLLG) faults in power delivery at nonlinear load [17], [18]. Figure 6 shows three-phase voltage sag LG faults based on GA-PSO proposed method in Figures 6(a The renewable energy source that provides numerous advantages PV benefits of no pollution and the reduction of operating costs there may be some stability issues [19]- [21].…”

Section: Resultsmentioning

confidence: 99%

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Fault analysis in grid-connected solar photovoltaic systems based on multi-objective grey wolf optimisation

Satyanarayana

Krishnamoorthy

2023

IJEECS

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The renewable energy resources depend on environmental concerns. Photovoltaic (PV) systems are an interesting form of renewable energy resource. The two main problems associated with PV systems are nonuniformity of irradiation and temperature change. PV achieving maximum power point tracking are dependent on power electronics converters. Emissions are a key challenge for the future of conventional renewable energy resources, which play an important role in the generation system. It is crucial in applications and industry because the primary goal of optimization is to discover specific research. We offer using the population of search agents based on fitness, the multi-objective grey wolf optimizer, a more modern meta-heuristic based on the hunting habits and social structure of grey wolves, for optimizing adaptive controllers for failures in grid analysis and power system integration various faults in the grid cause several power quality issues. Harmonics, voltage sag and swell imbalances, and many power conditioning topologies. This was carried out using MATLAB/Simulink, and the results showed a superior and flexible performance in reducing voltage sag and voltage swell problems and imperfections at various loading situations.

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Section: Resultsmentioning

confidence: 99%

“…The equation of hunting strategy is formulated as follows and 𝐶 ⃗ 1, 𝐶 ⃗ 2, and 𝐶 ⃗⃗⃗⃗ 3 are three coefficient vector aids in adjust distance vector and it is computed using (3). Position of vector of other grey wolf (omega) is ( 14)- (17).…”

Section: Hunting Preymentioning

confidence: 99%

Fault analysis in grid-connected solar photovoltaic systems based on multi-objective grey wolf optimisation

Satyanarayana

Krishnamoorthy

2023

IJEECS

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“…It can be seen that the number of switching sequences can be generated by using five segment carrier modulation is equal to the total number of switching states minus two. Compared with 5L-NPC inverter, the control of 5L-ANPC inverter is more complex because the number of switching states of traditional five level inverter is 5 3 = 125, while for 5L-ANPC inverter, the number of switching states is 8 3 = 512. In particular, when 5L-ANPC inverter outputs +E level and −E level, there are two kinds of redundant switching states, and selecting different Table 2 shows the influence of different switching sequences on CM voltage u com and FC voltage u f .…”

Section: Figurementioning

confidence: 99%

“…Multilevel converters have attracted a great deal of interest in high-power medium-voltage applications due to the low voltage stresses, low dv/dt and high-power quality [1][2][3][4]. Diode clamped, flying capacitor and cascaded H-bridge multilevel converters are the three classic multilevel topologies.…”

Section: Introductionmentioning

confidence: 99%

A predictive control method for switching sequence selection based on SVPWM for five‐level converter

Liu

Wang

et al. 2023

IET Power Electronics

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Aiming at the problems of complex realization, single control target and difficulty in selecting the optimal zero sequence voltage when the traditional space vector PWM (SVPWM) algorithm is adopted in five-level active neutral-point-clamp (5L-ANPC) converter, a predictive control optimal switching sequence selection (PC-OSSS) method is proposed. The method adopts the SVPWM control strategy base on the line voltage coordinate and then realizes the selection of optimal switching sequence through the multi-objective predictive control method. Firstly, the principle of SVPWM based on line voltage coordinate is introduced, and all switching sequences that can be output are obtained. Secondly, the mathematical models of the floating capacitor (FC) voltage, the neutral point (NP) voltage and the common mode (CM) voltage corresponding to each switch sequence are established. Finally, the optimal switch sequence is selected by using the predictive control method based on priority ranking. Compared with traditional SVPWM, the outstanding advantage of this method is that the traditional qualitative comparison method is replaced by quantitative calculation. The multi-objective control performance of the converter is improved while retaining the advantages of the traditional SVPWM fixed frequency. Finally, the practicability and effectiveness of the proposed control strategy are verified by simulation and experiment.

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“…The solar PV source is the most notable source for energy production because of its pollution less, waste less, economic, and manageable fabrication. Currently, solar PV energy generation transits from the low to the high-power grid system without any challenge [1]. The burgeoning load requirement and the integration of multiple energy sources take place through the course of transmission lines to control the accumulation, and continuity, diminish the supply power bank demands, and replacement of any traditional sources with nonconventional, green, renewable sources [2], [3].…”

Section: Introductionmentioning

confidence: 99%

Power quality enhancement of grid-connected PV system

Mishra

Rout

Mishra

et al. 2023

IJPEDS

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<span lang="EN-US">Solar photovoltaic (PV) power, for its multiple benefits, has adhered to prominent consideration in the electrical energy generation region. The double-stage triple-phase grid-connected solar PV (SPV) system is utilized to enhance the power quality by employing a lymphoblastoid cell lines LCL filter. In this method, a DC-DC converter and DC-AC converter make a feasible juncture of the PV systems to the electrical interface. For converting boosted DC into AC, A 3-phase DC-AC converter is used, which is supplied into the grid. A 3-phase voltage converter is employed in place of an inverter for interfacing amid the voltage generated by the PV system and the grid possessing an AC transmission line. An maximum power point tracking (MPPT) application is used in this proposal to amplify the effectiveness of the PV array in face of any unsteady climatic circumstances. Hence, the highest energy could be secured out of the solar PV array and interfaced with the grid. Enhancing power quality by employing an LCL filter is quantified by FFT analysis in MATLAB. The advised proposal has attained a very low total harmonic distortion (THD), proving its efficacy. Also, the outcomes ascertain the applications of the proposed system and extend future advances of renewable energy with a great power quality improvement.</span>

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Flying capacitor voltage balance and neutral point voltage regulation of PV array fed active neutral point clamped converter in real‐time HIL

Cited by 6 publications

References 32 publications

Fault analysis in grid-connected solar photovoltaic systems based on multi-objective grey wolf optimisation

Fault analysis in grid-connected solar photovoltaic systems based on multi-objective grey wolf optimisation

A predictive control method for switching sequence selection based on SVPWM for five‐level converter

Power quality enhancement of grid-connected PV system

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