Extended family of DC-DC Quasi-Z-Source converters

Ado, Muhammad; Jusoh, Awang; Sutikno, Tole

doi:10.11591/ijece.v9i6.pp4540-4555

Cited by 7 publications

(4 citation statements)

References 49 publications

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“…However, the buck operation in V O2 is inverted. (b) As D is varied from 0 to 0.5, the two outputs are less than or equal to the input voltage magnitude (c) For V O2 , varying the output from 0.5 to 1 results in boost operation (d) For V O1 , varying D from 0.5 to 0.667 results in inverted buck (stepping down) operation before achieving inverted boost operation from 0.667 to 1 (e) Two different buck operations could be achieved from V O1 namely: positive buck (from D = 0 to 0.5) and negative buck (from D = 0.667 to 1) (f) The positive and negative buck operation implies bidirectional buck capability [23,17]. The bidirectional buck capability means that during the negative buck, energy is transferred from source to V O1 while during the positive buck, it could be transferred from V O1 to source [17] at lower voltage magnitude.…”

Section: First Output (V O1 )mentioning

confidence: 99%

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Dual output DC-DC quasi impedance source converter

Ado¹,

Jusoh²,

Sutikno³

et al. 2020

IJECE

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A double output port DC-DC quasi impedance source converter (q-ZSC) is proposed. Each of the outputs has a different voltage gain. One of the outputs is capable of bidirectional (four-quadrant) operation by only varying the duty ratio. The second output has the gain of traditional two-switch buck-boost converter. Operation of the converter was verified by simulating its responses for different input voltages and duty ratios using MATLAB SIMULINK software. Its average steady-state output current and voltage values were determined and used to determine the ripples that existed. These ripples are less than 5% of the average steady-state values for all the input voltage and duty ratio ranges considered.

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Section: First Output (V O1 )mentioning

confidence: 99%

“…M. Ado et al [11] and [21] later proposed additional topology each to form an additional class [22]. M. Ado et al [23] extended the family of DC-DC q-ZSCs from two classes to three and from four members to six. Each of the classes has two members and a unique voltage gain.…”

Section: Introductionmentioning

confidence: 99%

Dual output DC-DC quasi impedance source converter

Ado¹,

Jusoh²,

Sutikno³

et al. 2020

IJECE

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“…Sources of alternating current, including single-phase and for loads also, such as the same source they can be of another type. It is the sources of direct current and the food can be different from the quality of the loads, which requires converting it to suit the load [74][75][76]. Therefore, we need electronic switches to build electronic switching systems, which studies have proven [77][78][79].…”

Section: Introductionmentioning

confidence: 99%

Simulation Model of Single-Phase AC-AC Converter by Using MATLAB

Shaker¹,

Shneen²,

Abdullah³

et al. 2022

Journal of Robotics and Control

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The current research sheds light on the electronic power devices that work as transformers and are named according to the function. A model of a single-phase transformer AC-AC type with half-wave and full-wave quality has been proposed. Its output is controlled by power, voltage and current, which is considered an input to the load. The fixed input transformer has a variable output according to the required power, voltage and current. Inverters of this type have so many uses that they are used in many different applications, including industrial, induction motor speed control, military, medical and household, including low-light circuits, among others. A simulation involving different types of single-phase AC transformers is proposed. The models were built in two ways, the first using a diode as an electronic switch, and the second using a thyristor. Different values for the load were chosen by adopting three values of 30 ohms, 40 ohms, and 50 ohms. An alternating power supply with an RMS value of 222 volts. Simulation was carried out after modeling to test the performance of the proposed transformer and its various modes of operation. Simulation models confirmed and reinforced the working theories of the proposed structures. From the results, we can reach the possibility of changing the voltage and power values using the electronic transformer by using the frequency of closing and opening the electronic keys within specific periods according to the proposed model, which can be represented or modified.

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“…(c) When compared with the ZSCs and qZSCs with single gain [14], it has higher gain magnitude at boost mode [11]. Although the q-ZSCs with discontinuous gain have higher gain magnitude during boost mode than the BBC, their discontinuous gain, buck mode limitation, lack of buck-boost capability at efficient duty ratio range (0.35 to 0.65) and abrupt change in polarity are disadvantages [16,[37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Asymmetric quasi impedance source buck-boost converter

Ado

Jusoh

Sutikno

2020

IJECE

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An impedance source buck-boost converter (BBC) prototype for renewable energy (RE) application in the transportation industry is proposed. Its functions include stabilizing the variable output voltage of the RE sources such as fuel cells and photovoltaic cells. The converter utilized a topology of DC-DC quasi-impedance source converters (q-ZSCs) to achieve the gain curve of the BBC. With BBC gain curve, the converter earned advantages over the two other classes of non-isolated DC-DC q-ZSCs. These advantages include ecient buck-boost capability at the ecient duty ratio range of 0:35-0:65 and continuous and non-zero gain at the ecient duty ratio range. The converter's q-ZSC topology implies using two capacitors and two inductors. These two capacitors and inductors formed two separate LC filters that provides second order filtering compared to the first order filtering in BBC. Its other advantages over the traditional BBC include elim-ination of dead and overlap-time, simple contol and permitting higher switching frequency operation. The converter is capable of utilizing high switching frequency and asymmetric components to achieve BBC gain by using smaller components to reduce cost, weight and size. Its simulation response and that of a correspond-ing BBC for some given specifications were compared, presented and analyzed. An experimental scaled-down prototype was also developed to confirm its opera-tion. Analysis of the converters responses comfirmed the prototype's second order filtering as against the first order filtering in traditional BBC.

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Extended family of DC-DC Quasi-Z-Source converters

Cited by 7 publications

References 49 publications

Dual output DC-DC quasi impedance source converter

Dual output DC-DC quasi impedance source converter

Simulation Model of Single-Phase AC-AC Converter by Using MATLAB

Asymmetric quasi impedance source buck-boost converter

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