Reactive power generation for single-phase transformerless Vehicle-to-Grid inverters: A review and new solutions

Afshari, Ehsan; Moradi, Gholam Reza; Ramyar, Alireza; Rahimi, Ramin; Farhangi, Babak; Farhangi, Shahrokh

doi:10.1109/itec.2017.7993249

Cited by 13 publications

(5 citation statements)

References 52 publications

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“…Furthermore, the total harmonic distortion (THD) effects on the system were also mentioned in. 43 In 44 the authors proposed a new fault detection algorithm to detect open and short circuit faults using power electronics switches. This method is easily implemented and does not require measuring sparse voltage.…”

Section: Faults Diagnosis Techniquesmentioning

confidence: 99%

A comprehensive review of fault diagnosis and fault-tolerant control techniques for modular multi-level converters

et al. 2022

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Background Many faults occur in the modular multi-level converters (MMCs), including unbalancing capacitor voltage, lower and upper arm unbalancing, the line to line voltage unbalancing, sensors and actuators fault, system fault, and sub-modules fault in high as well as medium voltage applications. Introduction Several fault-tolerant approaches are presented to overcome these problems, such as active fault-tolerant control system (AFTCS), passive fault-tolerant control system (PFTCS), hybrid fault-tolerant control system (HFTCS), redundant system technique, special power circuit with the controller, and zero sequence voltage methods, which we will explain extensively in this article. Methodology This review emphasizes the types of faults in the MMCs and discusses the protection methods under failure conditions. The MMC is more popular in high voltage applications because it not only improves the quality of the grid but also has good harmonic performance in high power transmission. There is no need for any isolated dc sources to operate it. When faults are removed, the efficiency and reliability of the system will be increased. Results This extensive explanation of the current literature on MMC fault diagnosis and control techniques will conclude which methods provide a more valuable solution. Finally, this paper discusses the best approach to reduce MMC faults and provides a future research direction to the readers.

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Section: Faults Diagnosis Techniquesmentioning

confidence: 99%

A comprehensive review of fault diagnosis and fault-tolerant control techniques for modular multi-level converters

et al. 2022

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“…During zero-voltage conditions, the extra switch isolates the DC side from the grid side, which is an efficient way to limit leakage current in non-isolated systems. The 5H is very efficient, reduces common-mode , circulates currents, and has minimal DC-link voltage oscillations [32].…”

Section: The Proposed Three-port Convertermentioning

confidence: 99%

A High-Gain Non-Isolated Three-Port Converter for Building-Integrated PV Systems

Elmakawi

Bayındır

2022

Electronics

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Using a hybrid renewable energy source with an energy storage system, this paper proposed a novel multi-stage non-isolated three-port converter with a 5H inverter to feed a residential load varying from 50 Watts to 3500 Watts. The proposed three-port converter operates in grid-tied and standalone power modes. A novel demand-side management algorithm, which covers eight operation modes, is described. Additionally, a complete control system is discussed. The proposed control system controls the PV maximum power point and battery charging/discharging, and regulates the 400 V DC bus voltage, the load voltage in standalone mode, and the grid-tied injected current. The proposed converter and the control system are validated through simulation for all power modes. The simulation results reveal that the proposed system is viable for Building-Integrated PV Systems.

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“…The upper switches are operated with grid frequency (f g ), and the lower switches are operated with the switching frequency (f sw ). The PV panel is disconnected from the grid side during zero voltage states when the switch Q5 is OFF; as a result, the current freewheeling period, there is no way to flow the output current at DC side which is an effective solution to reduce the 𝑖 𝑐𝑚 [39], [103], and [104]. In the positive half cycle, switches Q 5 and Q 4 turn ON at the switching frequency (f sw ), and Q 1 at the grid frequency (f g ) whereas the other two switches are OFF.…”

Section: A) H5mentioning

confidence: 99%

Transformerless Inverter Topologies for Single-Phase Photovoltaic Systems: A Comparative Review

Khan

Forouzesh

Siwakoti

et al. 2020

IEEE J. Emerg. Sel. Topics Power Electron.

273

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Reactive power generation for single-phase transformerless Vehicle-to-Grid inverters: A review and new solutions

Cited by 13 publications

References 52 publications

A comprehensive review of fault diagnosis and fault-tolerant control techniques for modular multi-level converters

A comprehensive review of fault diagnosis and fault-tolerant control techniques for modular multi-level converters

A High-Gain Non-Isolated Three-Port Converter for Building-Integrated PV Systems

Transformerless Inverter Topologies for Single-Phase Photovoltaic Systems: A Comparative Review

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