Three-Phase Z-Source AC-AC Converter

Fang, Xupeng

doi:10.1109/epepemc.2006.4778469

Cited by 19 publications

(13 citation statements)

References 12 publications

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“…A novel topology of Z‐source alternating current‐to‐alternating current (AC–AC) converter is another one to control voltage of IMs . The Z‐source converter overcomes the limitations of the traditional AC–AC pulse‐width modulation (PWM) ones, because it provides a new power conversion concept.…”

Section: Introductionmentioning

confidence: 99%

“…The Z‐source converter overcomes the limitations of the traditional AC–AC pulse‐width modulation (PWM) ones, because it provides a new power conversion concept. These converters can operate in both buck and boost modes, and they contain only two switch devices to reduce the cost and complexity .…”

Section: Introductionmentioning

confidence: 99%

“…In , a single‐phase Z‐source converter with only two switches has been proposed. A simple three‐phase Z‐source AC–AC converter has been introduced in . This converter has only two switch devices too.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, compared with the VSIs, any complicated PWM patterns or any exact protections are not needed for such converters. Moreover, in , the Z‐source converter has been applied to protect the load from sudden voltage sag, as it is able to operate in boost mode as well. In , on the basis of the voltage‐fed, Z‐source AC–AC converter presented in , the idea of Z‐source has been extended for the current‐fed type, and their operating principles are the same.…”

Section: Introductionmentioning

confidence: 99%

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A new arrangement of Z‐source AC–AC converter and its closed‐loop control system

Soreshjani

Abjadi

Markadeh

2014

Circuit Theory & Apps

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Summary In this study, a Z‐source alternating current‐to‐alternating current (AC–AC) converter with a specific topology, which can provide both buck and boost modes, is investigated. This converter, which can be implemented easily, utilizes only two switches with complemented commands. A comparison between the Z‐source AC–AC converter and a conventional thyristor voltage controlled one is presented here, and it shows that in the most areas, the Z‐source converter provides a faster response and lower total harmonic distortion of the output currents than the conventional one. Moreover, the Z‐source converter is also extended to the multiphase systems. In addition, a new arrangement of this converter is proposed here to remove the isolated single‐phase sources. Furthermore, an open‐loop method is proposed for soft‐starting applications. Finally, a closed‐loop control system is also suggested for a three‐phase Z‐source converter to soft start and control the speed of an induction motor. Computer simulations show the validity and effectiveness of the proposed schemes. Copyright © 2014 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A new arrangement of Z‐source AC–AC converter and its closed‐loop control system

Soreshjani

Abjadi

Markadeh

2014

Circuit Theory & Apps

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“…Similar two-switch configuration for three-phase AC-AC Z-source converter was proposed by X.P. Fang [28]. In [29], [30] a new structure of true three-phase AC bidirectional switch was introduced as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

A three-phase boost AC-AC voltage converter

Hossain

Choudhury²,

Uddin

2014

2014 IEEE Industry Application Society Annual Meeting

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A two bi-directional switch based three-phase boost AC voltage regulator is presented in this paper. The operational principle of the proposed three-phase regulator is a direct consequence of using two three-phase bi-directional switches in the boost converter topology. The topology has reduced number of switches for a three-phase AC voltage regulator having output voltage regulation, input current shaping and power factor improvement capability. It provides opportunity for simple control technique to be adopted. In this paper output/input voltage feedback and boost inductor average current tracking method is used for controlling the regulator. Reduced number of switches allows simple control circuit, less switching loss, reliable operation and low cost. Steady state analysis and simulation results of close loop control of the proposed converter are presented in this paper. The average inductor current tracking control shows acceptable regulation of the converter output voltage. During sudden variation of load or input voltage the controller adjusts the duty cycle to recover to the desired output voltage. Experimental investigation of the converter without any feedback control is also described.

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True three-phase bidirectional switch based AC-AC Buck-Boost converter topology

Hossain

Abedin

Choudhury

et al. 2013

2013 IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies (AEECT)

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This conference paper was presented in the 2013 2nd IEEE Jordan Conference on Applied Electrical Engineering and Computing Technologies, AEECT 2013; Amman; Jordan; 3 December 2013 through 5 December 2013 [© 2013 IEEE Computer Society] The conference paper's definite version is available at: http://doi.org/10.1109/AEECT.2013.6716458A new three-phase true bidirectional switch is proposed in this paper. This switch consist of a unidirectional switch enclosed in two three phase diode bridges with bidirectional input and output terminals. A family of simple topologies of three-phase AC-AC converters using the true bidirectional switch is possible as direct extension of DC-DC converters having similar operating principle. Steady state analysis and simulation results are presented in this paper using the Buck-Boost topology as an example. Performance of the circuit has been found satisfactory with duty cycle variation. The proposed converter can be used for AC-AC line conditioning to overcome voltage sags, surges, and load fluctuations. Because the proposed converters employ only two active devices, they can reduce cost and complexity and improve system reliability.Publishe

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Three-Phase Z-Source AC-AC Converter

Cited by 19 publications

References 12 publications

A new arrangement of Z‐source AC–AC converter and its closed‐loop control system

A new arrangement of Z‐source AC–AC converter and its closed‐loop control system

A three-phase boost AC-AC voltage converter

True three-phase bidirectional switch based AC-AC Buck-Boost converter topology

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