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18 articles for “Cascaded Inverters”
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Novelty of Cascaded Inverter Based Two Stage Power Conditioning Systems for Constant Wind Power Applications
Abstract: Wind energy has proved to be the most promising renewable energy source because of its environmental friendly nature. Wind energy can be generated by harnessing the kinetic energy of atmospheric air. The present concern towards wind turbines is to increase the size of turbine in order to harvest more energy and also to reduce cost of per megawatt capacity. This paper proposes a 2-stage power conversion technique. The first stage …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 1–11 Read article
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Delay Minimization of 3 Cascaded Inverters with the Help of Logical Effort and Transistor Sizing
Abstract: With logical effort minimum delay of the path can be estimated by only knowing number of stages, path effort, and parasitic delay without the need to assign transistor sizes. This is superior to simulation where delay depends on sizes and you never achieve certainty that the size selected would offer minimum delay. In this work 3 cascaded inverters is being sized in the ratio 1:2:3 to achieve minimum propagation delay …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 29–31 Read article
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Performance Evaluation of Single Phase Cascaded Nine Level Inverter using Photovoltaic (PV) SystemPerformance Evaluation of Single Phase Cascaded Nine Level Inverter using Photovoltaic (PV) System
Abstract: Multilevel inverters are considered at present as the state of the art power conversion systems for high power and power quality demanding applications. This paper’s objective is to propose a modified cascaded nine-level inverter topology for a virtually sinusoidal output voltage, less number of power switches, results in decreased complexity and reduced total harmonic distortion (THD). The structure is simple and easy to be extended to higher level but also …
Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 30–47 Read article
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Analysis of Cascaded Multilevel Inverter Induction Motor Drives
Abstract: The goal of this thesis is to use harmonic analysis to learn more about the performance of various cascaded multilevel inverters. To handle the high power demands of large electric drives and utility applications, innovative power electronics converters are required. As a result, in high power and medium voltage conditions, multiple power converter structures have been offered as an option. A multilayer converter not only achieves high power ratings, but …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 3, 2021 · pp. 22–42 Read article
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A Hybrid Cascaded Multilevel Inverter using Space Vector Pulse Width Modulation
Abstract: This paper proposes a topology of hybrid cascaded multilevel inverter consisting of two inverters namely main inverter and auxillary inverter. Main inverter consists of three-leg inverter with single DC source and auxillary inverter consists of three H-bridge two-leg inverter with separate DC sources for each H-bridge. Switches used in our proposed method are IGBT (insulated-gate bipolar transistor). The proposed model consists of 18 switches. The switches are controlled by space …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 1, 2015 · pp. 14–19 Read article
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Adaptive Selective Harmonic Elimination Method for Quasi Z-Source Cascaded Multilevel Inverters in Varying DC Voltage Condition
Abstract: AbstractIn this paper, a new control method for adaptive selective harmonic elimination in a quasi Z-source cascaded multilevel inverter (QZS-CMI) is proposed. According to real condition, the DC sources feeding the inverter are considered to be varying in time. In this condition, the switching angle and shoot-through duty ratio for each module are obtained off-line for different DC source values using particle swarm optimization (PSO) algorithm. The off-line data set …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 1–9 Read article
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An Energy Stored Quasi Z-Source Cascaded Multilevel Inverter
Abstract: In the world today, there is a huge demand of power, although we have sufficient energy generation technique, renewable energy power generation plays a major role, like solar. This paper is about the control technique, which includes ES-QZSI combined with CMI and energy storage in order to get constant output power without fluctuation from the solar panel. Combines cascaded multilevel inverter and quasi Z-source inverter. Battery is used to balance …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 2, 2016 · pp. 24–34 Read article
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Recent Innovations in Power Converter Technologies for Grid Integration of Solar Photovoltaic System: An Overview
Abstract: Increasing penetration of renewable energy power system has introduced new kind of issues in power system which can cause various power supply issues like increased harmonics, ineffectiveness of protective devices, reliability problems as well as stability issues. Thus, there is required of new innovation in power converter control strategies which can provide better supply. Reliable synchronization, cost effectiveness and well suited for Solar PV system. New development in Fuzzy logic, …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 6, Issue 1, 2019 · pp. 5–8 Read article
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Comparison of Symmetrical and Asymmetrical Cascaded H-Bridge Inverter with Single DC Source
Abstract: This paper presents the comparison of traditional cascaded H-bridge inverter with isolated DC sources (symmetrical arrangement) and the proposed cascaded H-bridge inverter with single DC source (asymmetrical arrangement). Also, fundamental switching strategy is used to generate the control pulses. A conventional cascaded H-bridge (CHB) inverter requires ‘n’ numbers of DC sources for 2n + 1 levels. Without requiring transformers, the scheme proposed here allows the use of a single DC …
Published in Journal of Power Electronics and Power Systems · Vol. 2, Issue 1, 2012 · pp. 8–17 Read article
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Study of Cascaded H Bridge Multilevel Inverter
Abstract: The inverters are now-a-days used broadly. Inverters are classified as two level inverters and multilevel inverters. There are too many limitations; conventional inverters at high power and high voltage applications. So, multilevel inverters become useful for high power and high voltage applications due to their increased number of levels at the output voltage. The harmonics are reduced by increasing the number of levels and output voltage has a tendency to-end-up …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 1, 2016 · pp. 45–54 Read article
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A Review on Solar Multilevel Inverter for the Production of Free Energy Due to the Structure with Long-life Feature
Abstract: Multilevel inverters play a major role in medium voltage, high power and renewable applications. It is also used in certain applications where high switching frequency, and high output voltage gain are required. The switching transient period of a MOSFET should be minimal because a high dv/dt rate could result in permanent damage to the MOSFET. The harmonics present could cause many problems and so it has to be minimized. The …
Published in Journal of Nuclear Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 13–18 Read article
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Analysis of Different Level Half-Bridge Modular Multilevel Inverter
Abstract: Inverter is a power electronics device which is used to convert DC power to AC power at required output voltage and frequency. It can be broadly classified as two level inverters and multilevel inverters. The multilevel inverters are mainly classified as Diode clamped, Flying capacitor inverter and cascaded multilevel inverter. The design and operation of cascaded half bridge modular multilevel inverter (MMC) was very easy. Because, no clamping diode and …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 2, 2015 · pp. 1–8 Read article
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Design of Voltage Controlled Oscillator using GDPK 90nm CMOS Technology
Abstract: In the recent decade, there has been a major revolution in communication systems and devices. Many communication devices required a specific frequency which may range from a few Hz to several GHz by source of voltage. Voltage Control Oscillator (VCO) plays a major role in today’s modern communication system. Voltage Control Oscillator use as basic building block in communication circuits and major use in phase locked loops circuits. Due to …
Published in Journal of Electronic Design Technology · Vol. 13, Issue 1, 2022 · pp. 17–24 Read article
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Harmonics Analysis of Single Phase VSI with 5-level and 7-level Inverter
Abstract: Abstract: The conventional two-level inverter is most commonly used for AC drive systems. The inverter produces harmonics, which will cause heating of the power electronic devices as well as load and deteriorate the life of it. Thus, anyhow harmonics should be suppressed or removed, the most common or well-known method to filter out harmonics are introduction of various filters between inverter and load according to requirements. The filters are mainly …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 1, 2019 · pp. 16–23 Read article
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A 9-level type as multi-based invertor of the transformer and types of topolgy with analysis & comparision.
Abstract: In this paper presents information about the transformer as a multi-based investor. We are using the proposel of the 9-level invertor. In this inverter we are used the various type of switches. Such operation will be used of this transformer, we give input of one dc voltage source to output is the good quality of power. For the 9-level invertor one input as dc source will give the 9 level …
Published in Journal of Power Electronics and Power Systems · Vol. 15, Issue 1, 2025 · pp. 37–43 Read article
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Impacts of Climate Change and Anthropogenic Stressors on Marine Ecosystems: A Comparative Study of Coral Reefs, Kelp Forests, and Arctic Fjords
Abstract: The accelerating impacts of climate change and human activities are profoundly reshaping marine ecosystems, threatening biodiversity, and altering trophic dynamics. This study synthesizes recent research on the responses of marine flora and fauna to temperature fluctuations, ocean acidification, pollution, and overfishing, highlighting the cascading effects on primary production, nutrient cycling, and ecosystem resilience. Using a combination of field surveys, remote sensing data, and meta-analytical approaches, we quantified biodiversity shifts across …
Published in International Journal of Marine Life · Vol. 3, Issue 1, 2026 · pp. 17–24 Read article
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Power Quality Issues and its Mitigation Technique in Integration of Renewable Energy with Grids: Review
Abstract: To reduce the carbon emissions Renewable Energy sources are widely included into power generation. Now a days penetration of Renewable Energy Sources into gird is increased and it is a major concern for power engineers to maintain the power quality. Due to integration of Solar and Wind energy Systems in Grid, the power quality issues arise and grid may become weaker. Power grid integration of renewable energy sources is achieved …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 1, 2022 · pp. 31–35 Read article
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The Electromagnetic Transients in Mixed Power Networks with Partial Undergrounding
Abstract: This paper deals with the electromagnetic transients in partially undergrounded mixed high voltage power networks. These networks can include several cable sections replacing parts of the overhead transmission lines. The analysis yields the transient voltage and current distributions along the normal and the partially undergrounded lines. Moreover, the results can indicate eventually existing localized voltage and current concentrations within the network. The study suggests an exact direct analytical distributed parameter …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 1–13 Read article