A Hybrid Cascaded Multilevel Converter for Battery Energy Management Applied in Electric Vehicles

Zheng, Zedong; Wang, Kui; Xu, Lie; Li, Yongdong

doi:10.1109/tpel.2013.2279185

Cited by 235 publications

(124 citation statements)

References 32 publications

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“…Predominantly cascaded multilevel converter (CMC) and modular multilevel converters (MMC) are used in those studies. Some of the recent studies have used hybrid cascaded converters using the same type of battery system such as described in [16]. The multilevel dclink voltage with an output H-bridge module was used.…”

Section: Index Terms-mentioning

confidence: 99%

“…[24] where the energy storage element was directly integrated across the dc-link. Moreover, parallel multilevel dc-link converters were also employed for the integration of battery and super-capacitor cells together as shown in [25] similar to [16]. The principle concept was based on multilevel dc-link voltage with H-bridge module at the grid side without the bulky dc-link capacitor.…”

Section: Index Terms-mentioning

confidence: 99%

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Analysis and Comparative Study of Different Converter Modes in Modular Second-Life Hybrid Battery Energy Storage Systems

Mukherjee

Strickland

2016

IEEE J. Emerg. Sel. Topics Power Electron.

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Section: Index Terms-mentioning

confidence: 99%

Section: Index Terms-mentioning

confidence: 99%

Analysis and Comparative Study of Different Converter Modes in Modular Second-Life Hybrid Battery Energy Storage Systems

Mukherjee

Strickland

2016

IEEE J. Emerg. Sel. Topics Power Electron.

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“…After convolution with h and g quadrature mirror filters, it is decomposed into an approximation component c 1 [n] and a detail component d 1 [n] at scale 1. Then approximation component c 1 [n] is further decomposed into c 2 [n] and d 2 [n] at the next scale and so on. This type of hierarchical decomposition can be mathematically represented as,…”

Section: Concept Of Discrete Wavelet Transform and Feature Extractionmentioning

confidence: 99%

“…The major advantages of multilevel inverters are the reduction in harmonic distortion of output voltage waveform with increase in number of levels and flexibility to use a set of batteries or fuel cells in any intermediate stages [1][2][3]. Even though multilevel inverters have made their way successfully to the industrial applications with a proven technology, failure of power electronic switches and its fault diagnosis is still a hot research topic of many researchers.…”

Section: Introductionmentioning

confidence: 99%

Identification of Open-Switch and Short-Switch Failure of Multilevel Inverters through DWT and ANN Approach using LabVIEW

Parimalasundar¹,

Vanitha²

2015

Journal of Electrical Engineering and Technology

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-In recent times, multilevel inverters are given high priority in many large industrial drive applications. However, the reliability of multilevel inverters are mainly affected by the failure of power electronic switches. In this paper, open-switch and short-switch failure of multilevel inverters and its identification using a high performance diagnostic system is discussed. Experimental and simulation studies were carried out on five level cascaded H-Bridge multilevel inverter and its output voltage waveforms were analyzed at different switch fault cases and at different modulation index values. Salient frequency domain features of the output voltage signal were extracted using the discrete wavelet transform multi resolution signal decomposition technique. Real time application of the proposed fault diagnostic system was implemented through the LabVIEW software. Artificial neural network was trained offline using the Matlab software and the resultant network parameters were transferred to LabVIEW real time system. In the proposed system, it is possible to precisely identify the individual faulty switch (may be due to open-switch (or) short-switch failure) of multilevel inverters.

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“…A flexible group battery energy storage system (FGBESS) consists of cascaded submodules, integrating the battery pack with a high-power converter as a flexible group. This provides a flexible energy management solution for improving energy utilization and the power quality in renewable-energy power generation systems, especially in the electrical vehicle field [5,6]. Compared to a conventional BESS, high capacity and state-of-charge (SOC) consistency is only required inside each low-voltage battery pack instead of all the batteries.…”

Section: Introductionmentioning

confidence: 99%

Fault-Tolerant Control for a Flexible Group Battery Energy Storage System Based on Cascaded Multilevel Converters

et al. 2018

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Abstract:A flexible group battery energy storage system (FGBESS) based on cascaded multilevel converters is attractive for renewable power generation applications because of its high modularity and high power quality. However, reliability is one of the most important issues and the system may suffer from great financial loss after fault occurs. In this paper, based on conventional fundamental phase shift compensation and third harmonic injection, a hybrid compensation fault-tolerant method is proposed to improve the post-fault performance in the FGBESS. By adjusting initial phase offset and amplitude of injected component, the optimal third harmonic injection is generated in an asymmetric system under each faulty operation. Meanwhile, the optimal redundancy solution under each fault condition is also elaborated comprehensively with a comparison of the presented three fault-tolerant strategies. This takes full advantage of battery utilization and minimizes the loss of energy capacity. Finally, the effectiveness and feasibility of the proposed methods are verified by results obtained from simulations and a 10 kW experimental platform.

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A Hybrid Cascaded Multilevel Converter for Battery Energy Management Applied in Electric Vehicles

Cited by 235 publications

References 32 publications

Analysis and Comparative Study of Different Converter Modes in Modular Second-Life Hybrid Battery Energy Storage Systems

Analysis and Comparative Study of Different Converter Modes in Modular Second-Life Hybrid Battery Energy Storage Systems

Identification of Open-Switch and Short-Switch Failure of Multilevel Inverters through DWT and ANN Approach using LabVIEW

Fault-Tolerant Control for a Flexible Group Battery Energy Storage System Based on Cascaded Multilevel Converters

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