Design and Implementation of a Multiport Converter Using Z-Source Converter

Rostami, Sajad; Abbasi, Vahid; Parastesh, Masoumeh

doi:10.1109/tie.2020.3022538

Cited by 49 publications

(44 citation statements)

References 25 publications

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“…Combination of the renewable sources is possible utilizing multi-port converters (MPC) which helps to improve reliability of the systems performance such as the systems in electric vehicles (EVs) [1][2][3][4]. Implementation of a converter with multi input and multi output instead of different individual converters has been investigated recently [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] which includes some advantages such as reduction of used components. MPCs can be classified to single input-multi output converter (SIMO), multi input-single output converter (MISO) and multi input-multi output converter (MIMO) [2].…”

Section: Introductionmentioning

confidence: 99%

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Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Tanha

Abbasi

Mohammadi

2022

IET Power Electronics

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This paper proposes a multi‐port DC–DC converter consisting of three input ports and two output ports extendable to three. The converter is designed based on quadratic boost converter, a technique for bidirectional port, an auxiliary source and two output ports with opposite polarities. Designed method of the configuration makes it suitable for multi‐applications with flexible operations. Connection of the converter to a bipolar system is possible due to opposite polarities of output ports. In addition, output voltage can be doubled by series connection between the two out ports and it is introduced as the third output port of the converter. The other advantages of the converter are its appropriate voltage gain, performance in stand‐alone mode with storage port and possibility of boosting voltage with similar voltage gains in different operation modes. To validate feasibility of the converter and investigate coordination of its performance with theory, a prototype is prepared for 120 W output power.

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Section: Introductionmentioning

confidence: 99%

“…In contrast to the converter in [19], the converter in [18] boosts voltage with low gain and efficiency. An extendable four port converter with high voltage gain based on Z-source is proposed in [20]. The converter has limit applications due to discontinuous current of its ports.…”

Section: Introductionmentioning

confidence: 99%

Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Tanha

Abbasi

Mohammadi

2022

IET Power Electronics

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“…MPCs have been taking much attention since last decade due to their capability in integrating multiple sources/loads in a cost-efficient way. 7 Depending on the type of integrated sources/loads, MPCs can be divided into three categories: (a) DC MPCs, [8][9][10] (b) AC MPCs, [11][12][13] and (c) hybrid MPCs. [14][15][16][17] As shown in Figure 2A, the DC-based RESs suffering from the intermittency are the main application for DC MPCs, where these sources are integrated with energy storage systems to create a smooth and programmable power generation at output.…”

Section: Introductionmentioning

confidence: 99%

A novel multiport converter switching scheme to integrate multiple renewable energy sources

Bizhani

Techato

Noroozian

et al. 2022

Circuit Theory & Apps

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Summary In this paper, an innovative switching scheme named simultaneous space vector modulation (SSVM) is proposed for integrating various AC sources in the energy industry using a unified multiport converter. The proposed SSVM technique is applied to the multileg topology of a multiport converter, which is an encouraging option for the grid integration of renewable energy sources and multimachine drives. Considering the shared leg in the multileg converter, the proposed SSVM can utilize the utmost simultaneous switching states between different ports, resulting in lower switching loss and better DC‐link voltage utilization compared with the conventional sequential space vector modulation approach. A novel decision matrix concept is introduced to identify the simultaneous switching states. For this aim, according to the number of ports of the multileg converter, decision matrices containing valid simultaneous switching states are first calculated. Then, they are defined as look‐up tables in the proposed SSVM to be retrieved and exploited in every sampling period. The effectiveness of the proposed SSVM for a seven‐leg version of the multileg converter is assessed using the simulation analysis and real‐time validation. The capability of the proposed SSVM‐based multiport converter in grid integration of AC renewable energy sources is also verified considering two permanent magnet synchronous generator (PMSG)‐based wind turbines with real wind speed patterns. The simulation results confirm that the proposed SSVM is properly able to manage the power flow between different ports and improve the DC voltage utilization and switching loss compared with the sequential SVM.

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“…However, it does not have any AC at the output. Literature [9] presents a Z source-based bidirectional multiport DC/DC converter that can produce only DC. It is unable to produce multiple AC at the output and requires an additional input filter as the proposed converter has a discontinuous input current.…”

Section: Introductionmentioning

confidence: 99%

Performance Analysis of Diode-Assisted Switched LC qZSI Network-Based Multioutput Series-Parallel Topologies in Microgrid Application

Sonkar

Lal

Singh

2022

International Transactions on Electrical Energy Systems

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In this paper, two (series and parallel versions) quasi Z source inverter (qZSI)-based multioutput series-parallel topologies capable of supplying multiple three-phase AC and single boost DC outputs simultaneously are presented. The proposed parallel version topology can supply n number of AC outputs along with one boost DC with constant voltage and variable current. Similarly, the series version topology can give n number of AC including one boost DC output with constant current and variable voltage. The outputs of the proposed topologies can feed directly to DC/AC microgrids and multiple residential loads simultaneously without using any extra adapter/regulator and thereby avoiding local power conversion to meet the load demand. A hybrid pulse width modulation technique with constant frequency is used to operate the proposed topologies. The performance of the proposed topologies is verified by developing the prototypes of 2.18 kW (for parallel version) and 2.02 kW (for series version) for two three-phase AC outputs and one boost DC output. The developed prototypes show measured efficiency of 90.01% for the parallel and 89.95% for the series version topology.

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Design and Implementation of a Multiport Converter Using Z-Source Converter

Cited by 49 publications

References 25 publications

Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

Multi‐application multi‐port DC–DC converter consisting six ports with four main operation modes

A novel multiport converter switching scheme to integrate multiple renewable energy sources

Performance Analysis of Diode-Assisted Switched LC qZSI Network-Based Multioutput Series-Parallel Topologies in Microgrid Application

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