A Different Multilevel Current-Source Inverter

Vázquez, N.; López, Hugo A.; Hernandez, C.; Vázquez, Eslí; Osorio, R.; Arau, J.

doi:10.1109/tie.2009.2030814

Cited by 59 publications

(30 citation statements)

References 32 publications

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“…Comparing the proposed converter with other CSI topologies, it can be found that a significant reduction in the inductor L is achieved. A general classification of CSI can be found in [31]. For Multilevel Paralleled CSI, the design criteria for the inductor is the energy stored in order to maintain the output current, resulting in large inductors of 400 mH for inductor currents of 0.5 A [31].…”

Section: Comparison With Other Csi Schemesmentioning

confidence: 99%

A Transformerless Single-Phase Current Source Inverter Topology and Control for Photovoltaic Applications

et al. 2018

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Low power grid-tied photovoltaic (PV) generation systems increasingly use transformerless inverters. The elimination of the transformer allows smaller, lighter and cheaper systems, and improves the total efficiency. However, a leakage current may appear, flowing from the grid to the PV panels through the existing parasitic capacitance between them, since there is no galvanic isolation. As a result, electromagnetic interferences and security issues arise. This paper presents a novel transformerless single-phase Current Source Inverter (CSI) topology with a reduced inductor, compared to conventional CSIs. This topology directly connects the neutral line of the grid to the negative terminal of the PV system, referred as common mode configuration, eliminating this way, theoretically, the possibility of any leakage current through this terminal. The switches control is based on a hysteresis current controller together with a combinational logic circuitry and it is implemented in a digital platform based on National Instruments Technology. Results that validate the proposal, based on both simulations and tests of a low voltage low power prototype, are presented.

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Section: Comparison With Other Csi Schemesmentioning

confidence: 99%

A Transformerless Single-Phase Current Source Inverter Topology and Control for Photovoltaic Applications

et al. 2018

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“…The single phase multi-rating inductor MLC is also named as embedded MLC as in [9] and the arrangement of inductors with semiconductor devices is shown in Fig. 3(a).…”

Section: B Multi-rating Inductor Mlcmentioning

confidence: 99%

“…Nimrod Vazquez et al surveyed the current-fed MLC topologies and classified them into embedded, two-stage and paralleled MLCs [9]. The embedded current-fed MLCs are suitable for high current and high power applications such as super-conductive magnetic energy storage (SMES) [10].…”

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confidence: 99%

“…The two stage current-fed MLCs achieve smooth input current with less number of semiconductor devices and they are more attractive power electronic converters for solar power integration [12]. Even though few converters has been identified in [9], for researchers to understand and to develop new current-fed MLC, there 0885-8993 (c) 2016 IEEE. Personal use is permitted, but republication/redistribution requires IEEE permission.…”

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confidence: 99%

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Current-Fed Multilevel Converters: An Overview of Circuit Topologies, Modulation Techniques, and Applications

Kulothungan

Rathore

Edpuganti

et al. 2017

IEEE Trans. Power Electron.

108

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Multilevel converters (MLC) have emerged as standard power electronic converters in high power as well as quality demanding applications. They are classified into current-fed MLC and voltage-fed MLC. Voltage-fed MLC has widely researched whereas the current-fed MLC are the recent topic of research. Based on the principle of duality between voltage and current sources, several current-fed MLCs analogous to voltage-fed MLCs have been identified. Current-fed MLC offer several advantages in terms of high power capability, transformer-less operation, short circuit protection and excellent quality of output current waveform. The goal of this paper is (1) to present review of circuit topologies, modulation schemes and applications of current-fed MLCs and, (2) to propose an emerging low device switching frequency modulation technique known as synchronous optimal pulsewidth modulation for current-fed MLCs. The circuit configuration and advantages of each topology along with various modulation techniques are discussed in detail. Compared to voltage-fed MLCs, the operation of current-fed MLCs need to satisfy additional switching constraints. Classical methods for realization these operational constraints are surveyed and new generic method has been proposed. Finally future scope of research has been presented to encourage further development of topologies and modulation techniques for current-fed MLCs.

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“…An alternate circuit design of multilevel CSI is made by using a multi-cell arrangement of multilevel CSI [13]- [15], which is the double flying capacitor multilevel VSI. Various control, strategies have been exhibited to control the voltage at intermediate levels and highlighted in [16]- [18]. However, the inverter still requires expensive larger size middle inductors (>100 mH).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Symmetrical and Asymmetrical Current Source Multilevel Inverter

Tamilarasi¹,

Sivakumaran²

2016

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The paper proposes a Current Source Multilevel Inverter (CSMLI) with single rating inductor topology. Multilevel inverters are most familiar with power converter's applications due to reduced dv/dt, di/dt stress, and very efficient for reducing harmonic distortion in the output voltage and output current. The proposed nine-level current source inverter has been tested under symmetrical and asymmetrical modes of operation, and their activities are compared using PI and Fuzzy PI (Proportional Integral) controllers with multicarrier PWM (Pulse Width Modulation) strategy. MATLAB/Simulink simulation has been made for the proposed converter to obtain its performance measures. Some experimental results are given to verify the presented Current Source Multilevel Inverter.

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A Different Multilevel Current-Source Inverter

Cited by 59 publications

References 32 publications

A Transformerless Single-Phase Current Source Inverter Topology and Control for Photovoltaic Applications

A Transformerless Single-Phase Current Source Inverter Topology and Control for Photovoltaic Applications

Current-Fed Multilevel Converters: An Overview of Circuit Topologies, Modulation Techniques, and Applications

Analysis of Symmetrical and Asymmetrical Current Source Multilevel Inverter

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