Seventeen-Level Inverter Formed by Cascading Flying Capacitor and Floating Capacitor H-Bridges

Kumar, Pramod; Kaarthik, R. Sudharshan; Gopakumar, K.; León, José I.; Franquelo, Leopoldo G.

doi:10.1109/tpel.2014.2342882

Cited by 152 publications

(36 citation statements)

References 22 publications

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“…Advanced converters technologies such as cascaded H-bridge converters, neutral-point-clamped converters and capacitorclamped (flying capacitor) converters have emerged as promising alternatives. Out of these alternatives, capacitorclamped converter topology has good dynamic performance and a relatively simple modulation process [10][11][12][13][14][15][16][17][18][19][20]. Moreover, due to the presence of capacitors, the capacitor-clamped converter has the capability to absorb transient energy itself [21].…”

Section: The Proposed Trasient Suppression Methodsmentioning

confidence: 99%

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Capacitor-clamped inverter based transient suppression method for azimuth thruster drives

Jayasinghe

Shagar

Enshaei

et al. 2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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The more-electric trend is there in almost all the corners of the automotive industry. The same trend is followed by the maritime transportation industry as well and as a result, conventional mechanical transmission based propulsion systems are gradually being overtaken by electric power transmission based propulsion systems. An azimuth thruster driven by an electric motor is a common configuration found in modern electric propulsion systems. Due to the tight speed control and stiff drivetrain in these propulsion systems load transients easily get propagated into the dc-link of the motor drive and subsequently into the upstream power bus as well. These transients can cause disturbances to the other loads connected to the power system. In the worst case, stability of the shipboard power system gets affected by the transients. This paper proposes to use the capacitor-clamped inverter based motor drive itself to absorb such transients and thereby prevent the propagation into the power bus. The efficacy of the proposed concept is verified through computer simulations. Simulation results show that the capacitor-clamped inverter is capable of absorbing load transients without passing them to the upstream power bus.

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Section: The Proposed Trasient Suppression Methodsmentioning

confidence: 99%

“…Modulation and control of capacitor-clamped three level inverters are comprehensively discussed in literature [10][11][12][13][14][15][16][17][18][19][20]. Nevertheless, in all these publications, balanced or equal conditions are assumed, or some techniques are used to balance capacitor voltages.…”

Section: A Modulation Methodsmentioning

confidence: 99%

Capacitor-clamped inverter based transient suppression method for azimuth thruster drives

Jayasinghe

Shagar

Enshaei

et al. 2016

2016 IEEE Applied Power Electronics Conference and Exposition (APEC)

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“…In [16], a novel 17-level inverter configuration is presented. This configuration is formed by cascading a threelevel flying capacitor and three floating capacitor H-bridges.…”

Section: Related Workmentioning

confidence: 99%

Novel Basic Block of Multilevel Inverter Using Reduced Number of On-State Switches and Cascaded Circuit Topology

Prayag

Bodkhe²

2017

Advances in Electrical Engineering

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In this paper a basic block of novel topology of multilevel inverter is proposed. The proposed approach significantly requires reduced number of dc voltage sources and power switches to attain maximum number of output voltage levels. By connecting basic blocks in series a cascaded multilevel topology is developed. Each block itself is also a multilevel inverter. Analysis of proposed topology is carried out in symmetric as well as asymmetric operating modes. The topology is investigated through computer simulation using MATLAB/Simulink and validated experimentally on prototype in the laboratory.

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“…Due to utilizing more than one DC capacitor in multilevel converter topologies, regulating and balancing their voltages is the most challenging part of the controller [15,20,21]. Redundant switching states can play an important role in facilitating the controller duty of regulating the output DC terminals voltages.…”

Section: Switching Technique and Integrated Voltage Regulatormentioning

confidence: 99%

A Novel Multilevel Multioutput Bidirectional Active Buck PFC Rectifier

Vahedi

Al‐Haddad

2016

IEEE Trans. Ind. Electron.

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Abstract-This paper presents a new family of buck type PFC (power factor corrector) rectifiers that operates in CCM (continuous conduction mode) and generates multilevel voltage waveform at the input. Due to CCM operation, commonly used AC side capacitive filter and DC side inductive filter are removed from the proposed modified packed U-cell rectifier structure. Dual DC output terminals are provided to have a 5-level voltage waveform at the input points of the rectifier where it is supplied by a grid via a line inductor. Producing different voltage levels reduces the voltage harmonics which affects the grid current harmonic contents directly. Low switching frequency of the proposed rectifier is a distinguished characteristic among other buck type rectifiers that reduces switching losses and any high switching frequency related issues, significantly. The proposed transformer-less, reduced filter and multilevel rectifier topology has been investigated experimentally to validate the good dynamic performance in generating and regulating dual 125V DC outputs terminals as telecommunication boards feeders or industrial battery chargers under various situation including change in the loads and change in the in main grid voltage amplitude.Index Terms-Packed U-Cell, PUC5, HPUC, Buck PFC rectifier, multilevel converter, power quality.

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Seventeen-Level Inverter Formed by Cascading Flying Capacitor and Floating Capacitor H-Bridges

Cited by 152 publications

References 22 publications

Capacitor-clamped inverter based transient suppression method for azimuth thruster drives

Capacitor-clamped inverter based transient suppression method for azimuth thruster drives

Novel Basic Block of Multilevel Inverter Using Reduced Number of On-State Switches and Cascaded Circuit Topology

A Novel Multilevel Multioutput Bidirectional Active Buck PFC Rectifier

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