Charge balance control schemes for cascade multilevel converter in hybrid electric vehicles

Tolbert, Leon M.; Peng, Fang Zheng; Cunnyngham, Tim; Chiasson, John

doi:10.1109/tie.2002.803213

Cited by 320 publications

(131 citation statements)

References 16 publications

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“…In this control method, each switching device needs only to be switched one time per fundamental cycle, which results in low switching losses and low electromagnetic interference. With N CHB cells, a multilevel inverter under staircase modulation has N arbitrary switching angles for synthesizing the output voltage waveform [25], [28]. Fig.…”

Section: Charge Balance Control Methods For Symmetric Cascaded Mumentioning

confidence: 99%

“…It is important to note that different control methods for the voltage balancing of other types of multilevel inverters have been presented in [18]- [24]. A charge balance control method for symmetric cascaded multilevel inverters has been presented in [25]. This control strategy is based on the rotation of the duty cycles between different H-bridges in such a way that after some fundamental cycles, the average duty cycle of the H-bridges will be equal.…”

Section: Introductionmentioning

confidence: 99%

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Charge Balance Control Methods for a Class of Fundamental Frequency Modulated Asymmetric Cascaded Multilevel Inverters

Babaei

2011

Journal of Power Electronics

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Modulation strategies for multilevel inverters have typically focused on synthesizing a desired set of sinusoidal voltage waveforms using a fixed number of dc voltage sources. This makes the average power drawn from different dc voltage sources unequal and time varying. Therefore, the dc voltage sources are unregulated and require that corrective control action be incorporated. In this paper, first two new selections are proposed for determining the dc voltage sources values for asymmetric cascaded multilevel inverters. Then two modulation strategies are proposed for the dc power balancing of these types of multilevel inverters. Using the charge balance control methods, the power drawn from all of the dc sources are balanced except for the dc source used in the first H-bridge. The proposed control methods are validated by simulation and experimental results on a single-phase 21-level inverter.

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Section: Charge Balance Control Methods For Symmetric Cascaded Mumentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Charge Balance Control Methods for a Class of Fundamental Frequency Modulated Asymmetric Cascaded Multilevel Inverters

Babaei

2011

Journal of Power Electronics

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“…The desired output of a multilevel inverter is synthesized by several sources of DC voltages. Some of the fundamental multilevel topologies include the diodeclamped [2][3][4], flying capacitor [4][5][6], and cascaded Hbridge structures [7][8][9][10]. Several combinatorial designs have also emerged by means of cascading the fundamental topologies that they are called hybrid topologies [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

A New Family of Cascaded Transformer Six Switches Sub-Multilevel Inverter with Several Advantages

Banaei¹,

Salary²

2013

Journal of Electrical Engineering and Technology

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Abstract-This paper presents a novel topology for cascaded transformer sub-multilevel converter.Eachsub-multilevel converter consists of two DC voltage sources with six switches to achieve fivelevel voltage. The proposed topology results in reduction of DC voltage sources and switches number. Single phase low frequency transformers are used in proposed topology and voltage transformation and galvanic isolation between load and sources are given by transformers. This topology can operate as symmetric or asymmetric converter but in this paper we have focused on symmetric state. The operation and performance of the suggested multilevel converter has been verified by the simulation results of a single-phase nine-level multilevel converter using MATLAB/SIMULINK.

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“…There are several types of multilevel inverters; cascaded H-bridge [6][7][8], neutral-point-clamped, flying capacitor [9][10][11], and the others [12][13][14]. Particularly, cascaded H-bridge inverters have been focused inthese topologies because of the modularity and the simplicity [8].…”

Section: Introductionmentioning

confidence: 99%

Reduction of Components in Cascaded Transformer Multilevel Inverter Using Two DC Sources

Banaei¹,

Salary²,

Alizadeh³

et al. 2012

Journal of Electrical Engineering and Technology

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-In this paper a novel cascaded transformer multilevel inverter is proposed. Each basic unit of the inverter includes two DC sources, single phase transformers and semiconductor switches. This inverter, which operates as symmetric and asymmetric, can output more number of voltage levels in the same number of the switching devices. Besides, the number of gate driving circuits is reduced, which leads to circuit size reduction and lower power consumption in the driving circuits. Moreover, several methods to determination of transformers turn ratio in proposed inverter are presented. Theoretical analysis, simulation results using MATLAB/SIMULINK and experimental results are provided to verify the operation of the suggested inverter.

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Charge balance control schemes for cascade multilevel converter in hybrid electric vehicles

Abstract: Index Terms-Cascade inverter, hybrid electric vehicle, motor drive, multilevel converter, multilevel inverter.

Cited by 320 publications

References 16 publications

Charge Balance Control Methods for a Class of Fundamental Frequency Modulated Asymmetric Cascaded Multilevel Inverters

Charge Balance Control Methods for a Class of Fundamental Frequency Modulated Asymmetric Cascaded Multilevel Inverters

A New Family of Cascaded Transformer Six Switches Sub-Multilevel Inverter with Several Advantages

Reduction of Components in Cascaded Transformer Multilevel Inverter Using Two DC Sources

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