A phase-shifted carrier-based PWM technique for cascaded h-bridge inverters application in standalone PV system

Boonmee, Chaiyant; Kumsuwan, Yuttana

doi:10.1109/epepemc.2012.6397528

Cited by 19 publications

(6 citation statements)

References 10 publications

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“…The presence of non-negligible leakage current is considered a drawback in this technique due to the parasitic capacitance of PV panel [46]. To eliminate leakage current, the bipolar PWM modulation scheme is used [47,48]. In 1965, McMurray first developed the FB or H-bridge inverter family [29].…”

Section: H-bridge Based Inverter Structuresmentioning

confidence: 99%

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

et al. 2018

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Abstract:The research significance of various scientific aspects of photovoltaic (PV) systems has increased over the past decade. Grid-tied inverters the vital elements for the effective interface of Renewable Energy Resources (RER) and utility in the distributed generation system. Currently, Single-Phase Transformerless Grid-Connected Photovoltaic (SPTG-CPV) inverters (1-10 kW) are undergoing further developments, with new designs, and interest of the solar market. In comparison to the transformer (TR) Galvanic Isolation (GI)-based inverters, its advantageous features are lower cost, lighter weight, smaller volume, higher efficiency, and less complexity. In this paper, a review of SPTG-CPV inverters has been carried out. The basic operational principles of all SPTG-CPV inverters are presented in details for positive, negative, and zero cycles. A comprehensive analysis of each topology has been deliberated. A comparative assessment is also performed based on weaknesses, strengths, component ratings, efficiency, total harmonic distortion (THD), semiconductor device losses, and leakage current of various SPTG-CPV inverters schemes. Typical PV inverter structures and control schemes for grid connected three-phase system and single-phase systems are also discussed, described, and reviewed. Comparison of various industrial grids-connected PV inverters is also performed. Loss analysis is also performed for various topologies at 1 kW. Selection of appropriate topologies for their particular application is thoroughly presented. Then, discussion and forthcoming progress are emphasized. Lastly, the conclusions are presented. More than 100 research publications on the topic of SPTG-CPV inverter topologies, configurations, and control schematics along with the recent developments are thoroughly reviewed and classified for quick reference.

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Section: H-bridge Based Inverter Structuresmentioning

confidence: 99%

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

et al. 2018

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“…There exist various modulation techniques to generate pulses for the switches of an MLI [17][18][19]. In this study, bipolar multicarrier level-shifted PWM techniques are considered for analysis.…”

Section: Modulation Strategymentioning

confidence: 99%

Improved performance with fractional order control for asymmetrical cascaded H-bridge multilevel inverter

Kumar

Arounassalame

2020

Bulletin EEI

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This paper proposes a control scheme for seven level asymmetrical cascaded H-bridge multi level inverter (ACHBMLI) based on fractional order calculus. The seven level ACHBMLI consists of two H-bridges that are connected in series and are excited by different dc voltage sources. A simplified model is developed by assuming the small signal variation component is equal in both the H-bridges. A fractional order PID (FO-PID) controller is designed for the ACHBMLI using the simplified model. Simulation study shows the adequacy of FO-PID controller in giving an output voltage with minimum distortions. A conventional PID controller is also designed for ACHBMLI using the same simplified model. The performance of the ACHBMLI with FO-PID controller is compared with the performance of ACHBMLI with conventional PID controller. The simulation results prove the superiority of FO-PID controller in maintaining the output voltage of the ACHBMLI close to the reference voltage and in reducing the harmonic distortion of output voltage of the inverter. The simulation was done using MATLAB and the parameters of FO-PID controller was designed using FOMCON tool box.

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“…Each Hbridge inverter of CHB-MLI uses the uni-polar control technique with its own carrier and modulation signals in order to control the pulse-width for power switches to operate follow the control signal [10].…”

Section: B Cascaded H-bridge Multi-level Voltage Source Inverter Formentioning

confidence: 99%

Performance comparison of three-level and multi-level for Grid-connected photovoltaic systems

Boonmee

Somboonkit

Watjanatepin

2015

2015 12th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technolo

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The most Grid-connected inverters for photovoltaic (PV) system use the three-level grid-connected inverter, which generates the three voltage level at the output of inverter. It can inject the sinusoidal current to utility grid through a set of filter as shown in Fig. 1. Even though, the three-level grid-connected inverter can be operated in high efficiency, but it still has some drawback, such as, the high total harmonic distortion (THD) of output voltage, the high switching power losses cause by high switching frequency in order to reduce the filter size, and power losses cause by mismatching of PV module power in the same PV string. The cascaded H-bridge multi-level inverter topology is an important choice to reduce some drawback of the three-level grid-connected inverter for PV system as shown in Fig.2. This paper presents the comparison studies the performance of using three-level and cascaded H-bridge multi-level inverter topologies for grid-connected PV system. The both inverter topologies have to operate as a single-phase grid-connected inverter in the same condition of filter size and under the IEEE standard of lower 5% of total harmonic distortion of grid current. The compared performance indicators consist of the grid injected power while the irradiation is changed in two cases (The same size and different size of PV power changing between two sets of PV string). The both systems have to be tested in the same testing condition. The MATLAB/SIMULINK simulation results are verified the accuracy of the both topologies performance.

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A phase-shifted carrier-based PWM technique for cascaded h-bridge inverters application in standalone PV system

Cited by 19 publications

References 10 publications

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

A Review on Recent Advances and Future Trends of Transformerless Inverter Structures for Single-Phase Grid-Connected Photovoltaic Systems

Improved performance with fractional order control for asymmetrical cascaded H-bridge multilevel inverter

Performance comparison of three-level and multi-level for Grid-connected photovoltaic systems

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