An Embedded Enhanced-Boost Z-Source Inverter

Yuan, Jing; Yang, Yongheng; Liu, Ping; Shen, Yanfeng; Qiu, Zhipeng; Blaabjerg, Frede

doi:10.1109/peac.2018.8590410

Cited by 6 publications

(6 citation statements)

References 12 publications

(10 reference statements)

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“…To reduce overall costs, synchronous and induction motors are typically used in EVs, with induction motors offering speed control over a wide range with minimal time required, a simple and robust DC to AC converter design, and lower maintenance costs [6]. Yuan et al [7] presents an analysis of the small signal modeling and transient behavior of a trans quasi-Z-source inverter (TqZSI), which is a modified version of the qZSI. The TqZSI, while having a higher number of components than the qZSI, can achieve better voltage boosting and current ripple reduction.…”

Section: Introductionmentioning

confidence: 99%

THD analysis and small AC signal analysis of trans-Z-source and quasi-Z-source inverter for linear and non-linear load

Bharat,

Murty,

Dash

2023

Bulletin EEI

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The paper primarily focuses on the ongoing research related to Z source inverter technologies (ZSITs) used in the transportation industry, particularly for electric vehicles (EVs) and hybrid electrical vehicles (HEVs). It analyzes various topologies of ZSITs based on their mode of operation, capacitor voltage stress during active states and non-active state operations, DC link voltage before inverter module and line to line output voltage across the load. The paper compares the conventional trans-z source and two port quasi-Z source inverter model networks for multiple parameters and derives mathematical equations for both linear and non-linear loads. Practical and theoretical calculations match when using a modulation index of M=0.85 and a duty ratio of 1.414. The result obtained in this paper indicates that the proposed solution is better in terms of reduction in total total harmonics distortions (THD) percentage of 18.14% during the transition condition. All the analysis has been carried out with MATLAB based Simulink model.

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Section: Introductionmentioning

confidence: 99%

THD analysis and small AC signal analysis of trans-Z-source and quasi-Z-source inverter for linear and non-linear load

Bharat,

Murty,

Dash

2023

Bulletin EEI

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“…Also, a new structure has been presented by extending the quasi‐ZSI structure which increases the output voltage by increasing the boost factor 14,15 . To increase the voltage gain, developed ZSI, switched‐inductor ZSI, 4 one switched‐inductor ZSI, 5 switched inductor quasi‐ZSI, 16 , and so on, have been presented 17‐33 . The switched‐inductor ZSI 4 is shown in Figure 1B, instead of the inductor in the conventional ZSI, an inductive network comprised of three diodes and two inductors is used.…”

Section: Introductionmentioning

confidence: 99%

“…14,15 To increase the voltage gain, developed ZSI, switched-inductor ZSI, 4 one switched-inductor ZSI, 5 switched inductor quasi-ZSI, 16 , and so on, have been presented. [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32][33] The switched-inductor ZSI 4 is shown in Figure 1B, instead of the inductor in the conventional ZSI, an inductive network comprised of three diodes and two inductors is used. Also, just as in the switched-inductor Z-source inverter, in the one switched-inductor inverter 5 which is shown in Figure 1C, instead of utilizing an inductor, a grid inductive including two inductors and three diodes has been utilized.…”

Section: Introductionmentioning

confidence: 99%

Switched‐capacitor inductor Z‐source inverter with an impedance network

Bolaghi

Taheri

Babaei

2020

Int Trans Electr Energ Syst

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The Z‐source inverter was introduced to overcome shortcomings of voltage source inverter and current source inverter. In this paper, the concept of one switched‐inductor Z‐source inverter is extended to switched‐capacitor inductor ZSI with an impedance network. In the proposed inverter, capacitors are used instead of the side diodes of the one switched inductor Z‐source inverter. The proposed inverter has a higher boost factor compared to One SL‐ZSI and quasi‐ZSI. Also, it has lower voltage stress compared to similar inverters. The proposed inverter can be extended to n cases in cascade form. The components used in the proposed topology are lower than the SL‐ZSI. The analysis, derivation of boost factor, capacitor voltages, diode voltages, and switch voltages stress of the proposed inverter topology are carried out and are compared with the similar inverters. The advantages of the proposed structure are verified through simulation and implementation. The simulation is performed in MATLAB/SIMULINK.

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“…In addition, the dead-time between upper and lower switches can be eliminated to get a high quality output waveform [3]. In recent years, ZSI has become a research hotspot in renewable energy systems [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

A Family of High Step-Up Quasi Z-Source Inverters with Coupled Inductor

2020

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With the continuous development of new energy, there is more and more research on step-up inverters in photovoltaic and wind power generation systems. The Z-source inverter has become a research hotspot because of its small output THD (Total Harmonic Distortion) and high reliability. However, the traditional Z-source inverters cannot meet the higher boost requirements of new energy power generation. The quasi-z-source inverter with stronger boosting ability came into being. The high step-up Z-source inverters presented in existing literature is only focused on one or several topologies and lacks a comparative analysis on different topologies. Based on the quasi-Z-source inverter, this paper proposes a family of quasi-z-source inverters with a coupled inductor. The required voltage gain can be obtained by changing the turns ratio of the coupled inductor, which provides a new control variable for the system and makes the design of the system becomes more flexible. Through the analysis and comparison of each topology in terms of boost capacity, voltage stress, coupled inductor volume, circuit efficiency, and input ripple, the characteristics of each topology are summarized. The representative topology was simulated and analyzed, and a 1 kVA prototype was developed in the laboratory to verify the correctness of the theoretical analysis.

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An Embedded Enhanced-Boost Z-Source Inverter

Cited by 6 publications

References 12 publications

THD analysis and small AC signal analysis of trans-Z-source and quasi-Z-source inverter for linear and non-linear load

THD analysis and small AC signal analysis of trans-Z-source and quasi-Z-source inverter for linear and non-linear load

Switched‐capacitor inductor Z‐source inverter with an impedance network

A Family of High Step-Up Quasi Z-Source Inverters with Coupled Inductor

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