What is a dual-source inverter?
This paper is an attempt to provide a dual-source inverter, an intelligent inverter topology that links two isolated DC sources to a single three-phase output through single-stage conversion. The converter is designed to be utilized in hybrid photovoltaic fuel cell systems, among other renewable energy applications.
What is a dual-input dual-output inverter?
Reference 14 describes a dual-input dual-output inverter with nine switches, allowing each source to supply a separate load. In the topology presented in Ref. 15, the input sources cannot have random voltage or current levels. Two dual-input single-output three-phase inverters are discussed in Refs. 1, 2.
What is a dual-stage multi-input inverter?
The topologies presented in Refs. 25, 26, 27, 28, 29, 30, 31, 32, 33 are dual-stage multi-input inverters. These topologies are unique in several ways, including their low number of semiconductors and absence of low-frequency transformers. These features make them well-suited for photovoltaic and grid-connected applications.
What is a dual-input single-output three-phase inverter?
Two dual-input single-output three-phase inverters are discussed in Refs. 1, 2. In the topology developed by Ref. 2, replacing the two inductors of the classic impedance source inverter with two transformers forms a new multi-port inverter. In this inverter, the DC-link voltage is a three-level signal with a specific switching frequency.
What is dual-two-level voltage-source inverter (d2l-vsi)?
Among all ML inverters, dual-two-level voltage-source inverters (D2L-VSIs) proposed in are being prevalent since D2L-VSIs compared with other ML inverters operate with the half dc-link voltage and simple controlling method with no need to control neutral point voltages .
How many switches are used in a multi-port inverter?
Reference 19 describes the development of a high-reliability multi-port inverter using five extra switches and no additional passive elements. The topologies proposed in Refs. 16, 20, 21 are appropriate structures, especially for high-power applications. In this research study, the converters used are implemented using twelve additional switches.
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A Grid-Connected Dual Voltage Source Inverter With Power …
In this paper, Space Opposite Vectors Modulation (SOVM) is proposed to decrease Common-Mode Voltage (CMV), and also improve inverter switching losses compared to PWM7 for Dual Two-Level Inverters ...
Get Price →Isolated bidirectional DC-DC Converter: A topological review
Voltage feeds a dual active bridge which would manage high peak and huge RMS current that causes a very large current ripple which affects system efficiency and reliability; to overcome these issues, high efficiency CF-DAB converter over wide load range with optimized a switching pattern which is controlled by a combination of PWM duty cycles ...
Get Price →A New Dual-input Buck-boost Inverter with Input Power …
Abstract: Photovoltaic inverters (PV) undertake the critical task of converting the DC power output from PV cells into the AC power required by the grid. In this paper, a dual-input Buck-boost inverter (DIBBI) is innovatively proposed, which combines the Buck-boost circuit module and coupled inductor technology, and has the advantages of fewer switching devices, wider input …
Get Price →Complete ZVS Analysis in Dual Active Bridge
Zero-voltage-switching (ZVS) has been widely applied in widebandgap devices based on high-switching-frequency converters, for instance, dual-active-bridge isolated dc-dc converter, which consists of two H-bridges. To secure ZVS for all eight switches, previous literature mostly focuses on half-bridge to analyze switching transitions, which, however, is rather incomplete due to …
Get Price →K Ramachandra Sekhar
Common mode voltage elimination PWMs for a dual two-level VSI with single inverter switching. J Kalaiselvi, KRC Sekhar, S Srinivas. 2012 IEEE International Symposium on ... A Novel Switching Vector Sequencing Method to Optimize DC Voltage Ripple in Dual Inverter Drive Without Affecting Load Current Ripple. AI Gedam, KR Sekhar. IEEE Transactions ...
Get Price →Soft-Switching, Interleaved Inverter for High Density …
New wide-bandgap (WBG) devices, combined with soft-switching, now allow inverters to shrink in size by pushing to higher switching frequencies while maintaining efficiency. Classic H-Bridge topologies have limited switching frequency due to hard switching. Soft switching allows inverters to operate at higher frequency while minimizing switching ...
Get Price →Pulse width modulation schemes enabling single DC power …
Three-level voltage space phasor can be obtained using a dual two-level voltage source inverter (VSI). Two zero sequence voltage elimination pulse width modulation (PWM) switching variants are proposed in this paper for complete elimination of zero sequence voltage (ZSV) in the dual-VSI scheme.
Get Price →An Overview of Dual Converters: Working, …
The converter operating as a rectifier is called a positive group converter and the other converter working as an inverter is called a negative group converter. The average output voltage is a function of the firing angle. …
Get Price →SVPWM control strategy for a three phase five level dual inverter …
The output voltage of the inverter becomes nearly sinusoidal, when the number of levels of the inverter is increased. Three and five level inverters become more popular for medium voltage and high power industrial applications [7], [8].Three level output voltage is attained with help of dual two level inverters with open end winding induction motor.
Get Price →The performance analysis of dual-inverter three phase …
combination of 8 switching states from inverter-1 and 8 switching states from inverter-2. The voltage space vectors of dual-inverter fed are governed by Eq. (2). When two inverters apply the same (equal) DC-link voltage, the 64 switching combinations mapped in 19 voltage vectors as are shown in the Fig. 3. In Fig. 3b the labels in decimal
Get Price →Research and design of a dual buck micro grid-connected inverter …
This enables the circuit to achieve zero-voltage switching [21]. Secondly, a small-signal model is employed to modify the parameters of the PI regulator. ... The specific experiments include the measurement and comparative analysis of the driving waveforms of each switching tube in the dual Buck inverter circuit; the comparative analysis of the ...
Get Price →An extended dual input dual output three level Z source inverter …
A novel randomized control strategy for three-phase voltage source inverters is described (Trrynadlowski et al., 1997). In this control strategy, an implicit asymmetrical modulating function results in switching losses in the inverter being reduced by about half in comparison with those using the classical space vector pulse width modulation ...
Get Price →Adapted near-state PWM for dual two-level …
In this paper, a near-state pulse-width modulation (NSPWM) algorithm is proposed and implemented on dual-two-level voltage-source inverters (D2L-VSIs) in order to reduce the common-mode voltage (CMV), the …
Get Price →A High-Efficiency Super-Junction MOSFET based Inverter …
Fig. 1. Voltage source inverter-leg based around MOSFETs equipped with intrinsic diode deactivation circuitry. Va Q knee point Qoss Vdc Fig. 2. Q-V characteristic curve of SJ MOSFET. C. Proposed Dual-Mode Switching Technique With an AC load current such as that in an inverter, a dual-mode switching control technique is proposed. In the so-called
Get Price →Novel Control of Dual-Grounded Soft-Switching …
A high-efficiency dual-grounded soft-switching transformerless single-phase inverter is proposed in this article. It is able to achieve the zero-voltage switching (ZVS) and inherent leakage current reduction. ... Switches, Switching loss, Zero voltage switching, inverter, soft switching, zero voltage switch", author = "Xiaoqiang Guo and Zhuoqun ...
Get Price →(PDF) Pulse Width Modulation Technique for Multilevel
The selection of switching voltage for the dual inverter . having two different dc voltage sources is illustrated in Figure . 3. 4.1 Using only large voltage vectors .
Get Price →DC-Link Ripple Reduction for Parallel Inverter Systems by a
This paper proposes an analytical formulation-based minimization of DC link current ripples for interleaved parallel inverter systems. Parallel inverter systems find applications in multiple fields. The interleaved superposition of the DC link currents in these systems can potentially be adjusted to mitigate the overall harmonics consequently reducing the DC link …
Get Price →AC/DC, DC-DC bi-directional converters for energy …
Inverter Power Stage Control Control MCU MCU CAN 800V 50-500Vdc 3ph AC CAN/ PLC Vehicle ... Zero Voltage Switching 17 Switching transition from interval 1 to 2: ... • Less than 3% ripple target for output voltage • Dual channel reinforced isolated gate driver
Get Price →Pulse Width Modulation Technique for …
In this article, the author discusses the five-phase two-level dual voltage source inverter. The author also proposes two controlling schemes for multilevel operation using space vector pulse width modulation for a five …
Get Price →Dual-inverter for grid-connected photovoltaic system: Modeling and ...
A fast and robust control strategy for a multilevel inverter in grid-connected photovoltaic system is presented. The multilevel inverter is based on a dual two-level inverter …
Get Price →Adapted near‐state PWM for dual two‐level inverters in …
In this paper, a near-state pulse-width modulation (NSPWM) algorithm is proposed and implemented on dual-two-level voltage-source inverters (D2L-VSIs) in order to reduce the common-mode voltage (CMV), the inverter switching losses, the current total harmonic distortion, and the side effects of bearing currents --compared with space vector modulation (SVM) and …
Get Price →VT FEEC :: Publications
S.-Y. Park, P. Sun, W. Yu, and Jih-Sheng Lai, Performance Evaluation of High Voltage Super Junction MOSFETs for Zero-Voltage Soft-Switching Inverter Applications, in Proc. of IEEE Applied Power Electronics Conference, Palm Springs, CA. Feb. 2010, pp. 387-391.
Get Price →Simulation Study of Five-Phase Dual Two Level Inverter …
This paper presents simulation study of five-phase two-level dual inverter system using unified space vector pulse width modulation scheme with two isolated DC
Get Price →A SPWM Strategy Based Dual-Inverter Control for Electric …
This paper presents a comprehensive study on the implementation of a dual 2 -level (2L) voltage source inverter (VSI) to drive an open-end winding induction motor (OEWIM) for electric …
Get Price →A single-stage dual-source inverter using low-power …
This paper is an attempt to provide a dual-source inverter, an intelligent inverter topology that links two isolated DC sources to a single three-phase output through single …
Get Price →A Three-phase Dual Active Bridge Bidirectional ZVS DC/DC …
This paper discusses the detailed operations of a three-phase dual active bridge bidirectional zero-voltage switching (ZVS) DC/DC converter (TPDAB) which transfers a bidirectional power flow between a 12 V net and a high voltage DC net.The converter is controlled by phase-shift-modulation (PSM) with a fixed duty cycle D=1/3.
Get Price →PWM inverter switching strategy for a dual two-level inverter …
A dual two-level inverter fed open-end winding induction motor drive is proposed in this paper. A total of 64 voltage space phasor combinations are possible in this scheme since …
Get Price →Dual‐Inverter Circuit Topologies for Supplying Open‐Ended …
Power electronic converters are nowadays the most suitable solution to provide a variable voltage/current in industry. The most commonly used power converter is the three …
Get Price →Research and design of a dual buck micro grid-connected inverter …
The specific experiments include the measurement and comparative analysis of the driving waveforms of each switching tube in the dual Buck inverter circuit; the comparative …
Get Price →The performance analysis of dual-inverter three phase fed …
Induction motor with scheme open end winding (OEW) has attract many attention in the recent time as a compromising alternative of multi-level inverter. The structure contains of simplicity in generating multi-level inverter and has potential ability to obtain a better quality output due to higher number of the available switching states and voltage vectors.'' Based on the …
Get Price →Unipolar and Bipolar PWM Inverter
is characterized by simple circuitry and rugged control scheme that is SPWM technique to obtain inverter output voltage control and to reduce its harmonic content. Keywords: Bipolar, Inverter, Over Modulation, PWM, Unipolar. _____ I. INTRODUCTION The basic inverter circuits performs the task of converting DC input power to AC output power.
Get Price →Pulse Width Modulation Technique for Multilevel Operation …
A unified SVPWM scheme for dual voltage source inverters has been presented by Chen and Sun [21], and this has become the basis for the proposed schemes in this paper. In the proposed scheme, inverter system having two different dc voltage sources to minimize the total switching frequency and to provide the region identification for each sector.
Get Price →Novel DC–AC inverter based on phase-shift shoot-through controlled dual ...
In order to improve the conversion efficiency, realising soft switching will become the essential technology in the research of DC–AC inverters. Based on the commonly used two-stage isolated inverter, this study proposed a novel DC–AC inverter that combines dual-active-bridge (DAB) converter, switched capacitor and full-bridge inverter.
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