Multilevel DC link inverter

Su, Gui-Jia

doi:10.1109/ias.2004.1348506

Cited by 29 publications

(48 citation statements)

References 11 publications

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“…Fig. 4 shows the schematic diagram of the cascaded Half-Bridge based MLDCL Inverter, herewith referred as the ''R1" introduced by Su et al [22,23]. This topology contains less number of switches as compared to classical MLIs for generating same output voltage.…”

Section: Cascaded H-bridge (Chb)mentioning

confidence: 98%

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Comparison of reduced part count multilevel inverters (RPC-MLIs) for integration to the grid

Agrawal

Jain

2017

International Journal of Electrical Power & Energy Systems

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Section: Cascaded H-bridge (Chb)mentioning

confidence: 98%

“…This results in less expensive, reduced complexity and reduced weight of the RPC-MLIs. Several RPC-MLIs are proposed in literature [20][21][22][23][24][25][26][27][28][29][30][31]. Each topology has their advantages and limitations.…”

mentioning

confidence: 99%

Comparison of reduced part count multilevel inverters (RPC-MLIs) for integration to the grid

Agrawal

Jain

2017

International Journal of Electrical Power & Energy Systems

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“…Flying Capacitor converters [5] and cascade H-bridge (CHB) converters [6], when used for increased number of levels leads to higher device count, cost and complexity in its implementation. To overcome these limitations various new topologies [7][8][9][10][11][12][13] have been proposed in literature with more output levels, but at the same time having less numbers of active and passive devices. A novel topology of high level MLI, and cascaded proposed in [7], [9] with less number of passive devices and insulated gate driver circuit.…”

Section: Iintroductionmentioning

confidence: 99%

“…Another class of multilevel inverters based on a multilevel DC link (MLDCL) and a bridge inverter has been proposed in [10]. The realization of MLDCL can be possible using cascaded half-bridge cells or a flying-capacitor phase leg or diode-clamped phase leg having their own DC sources.…”

Section: Iintroductionmentioning

confidence: 99%

A modified switching scheme for a new multi level inverter topology for fuel-cell microgrid

Kumar

Pal

2014

2014 IEEE 6th India International Conference on Power Electronics (IICPE)

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Recently the use of multilevel inverters (MLIs) in modern drives and for interfacing the renewable generation systems to grid have given wide scope for designing new topologies of MLIs. Fuel cell generation systems are expected to see practical usage due to several advantages over conventional generation systems. This paper introduces a new switching scheme for a new topology of MLI with reduced number of switches for interfacing Fuel-cell with the grid. The unipolar pulse width modulation (PWM) technique is used for the switching of H-bridge switches, while for the outer switches sinusoidal modulating wave is compared with DC component. With this modified switching scheme the Total Harmonic Distortion (THD) in the output voltage of MLI decreased. It is also observed from the simulation results that the THD of output voltage of 21-level MLI is within limits as specified by IEEE 519 standard. A comparative analysis of proposed switching scheme with the reported switching scheme is carried out for the seven and thirteen levels of new topology in terms of the THD in the output voltages. Moreover, a comparison of new topology with conventional reported MLI topologies is alsomade in terms of the number of switches and required DC sources for different levels. It is also observed from simulation results that during the integration of the Fuel-cell with the grid, the grid requirements such as phase angle, frequency and amplitude of grid voltage are also satisfied.

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“…Therefore, researchers are striving to improve single-phase inverters in terms of power circuits and control strategies. Neutral point clamped (NPC) or diode clamped [1][2][3], the flying capacitor (FC) or capacitor clamped, and the cascaded H-bridge (CHB) [4][5][6][7][8][9] are the basic multi-level inverter configurations. Although these types of inverters have been proposed as three-phase inverters, they can be adapted to operate as single-phase inverters.…”

Section: Introductionmentioning

confidence: 99%