A multi-phase impedance source inverter with an improved controller structure

Ghaderi, Davood; Molaverdi, Dina; Kokabi, Alireza; Papari, Behnaz

doi:10.1007/s00202-019-00903-9

Cited by 13 publications

(5 citation statements)

References 42 publications

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“…𝑽 𝟏 𝑽 𝒊𝒏 = 𝐃 (𝟏 − 𝐃) 𝟐 (10) The ratio of the output voltage to the input voltage is given as (D/(1-D) 2 ) according to the calculation made by Fu et al [26]. The duty ratio of the converter is set to 0.7.…”

Section: Steady-state Analysis Of the Suggested Convertermentioning

confidence: 99%

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A PID-Controlled High DC Voltage Gain Switched-Inductor and Switched-Capacitor-Based DC-DC Power Buck-Boost Converter Design for Solar Energy Application

Araz¹,

Ertekin²,

Aydin³

2021

Journal of Innovative Science and Engineering (JISE)

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DC-DC converters are widely applied in different industrials such the Renewable Energy Sources (RESs) utilizations, Electrical Vehicle (EV) applications and power transmission technologies. Different topologies are presented for these converters including the modified Buck, Boost or Buck-Boost converters, switched-inductors and switched-capacitor-based structures and circuits with transformers. A DC-DC converter is needed to transmit and make the voltage applicable to the grid or home applications to use the different levels of the generated voltage by different voltage sources. In this study, a switched-inductor-based converter is presented to operate in low or high-power utilizations. One application of the proposed converter is aiming to supply the necessary voltages to the devices requiring low voltage, such as mobile phones and computers, and transmit the obtained voltage to the electricity grids that can be categorized at the high-voltage applications. Based on the load voltages level, there is a need to obtain a high-gain converter, which can operate as a buck and boost converter. Since electrical energy must be transmitted as lossless as possible, the converter must be highly efficient. In the proposed converter, the number of the components are optimized and only one power switch is used. The main advantage of the converter is that it can be controlled simply since it contains only one power switch. Also, three diodes are used in the proposed structure that only one of them is activated at the time intervals that the switch is on ON-state and the other two diodes are activated for the OFF-state of the switch.All these features can help for obtaining smaller dynamic and switching losses through the power transmission process. Both inductors are charged in the ON-state and discharged in the OFF-state operational modes that can guarantee a Continuous Conduction Mode (CCM) working conditions for the converter. Also, a capacitor is used to transfer the voltage between the input and output sides during the switching process.

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Section: Steady-state Analysis Of the Suggested Convertermentioning

confidence: 99%

“…The direct voltage that is increased with a DC-DC converter is converted to alternative voltage with a converter's help. It is then filtered and delivered to the grid [2][3][4][5][6][7][8][9][10][11][12]. The solar panel is considered to consist of many serially connected cells.…”

Section: Introductionmentioning

confidence: 99%

A PID-Controlled High DC Voltage Gain Switched-Inductor and Switched-Capacitor-Based DC-DC Power Buck-Boost Converter Design for Solar Energy Application

Araz¹,

Ertekin²,

Aydin³

2021

Journal of Innovative Science and Engineering (JISE)

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“…π Q and π E have been considered equal with 10 for the fixed ground and unknown screening level for the converter. Thus, for the failure life for both capacitors can be gained from (27): For an inductor, this parameter can be obtained from (28):…”

Section: A Capacitorsmentioning

confidence: 99%

Influence of a Proposed Switching Method on Reliability and Total Harmonic Distortion of the Quasi Z–Source Inverters

et al. 2020

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An Improved Sinusoidal Pulse Width Modulation (ISPWM) technique carried out to obtain pure sine waves for voltage and current signals in Quasi Z-Sourc Inverters (QZSIs) in the load side is given in this study. This switching method can be examined to two and multi-phase approaches simply through the addition of the same controller structure to per phase. This is the main advantage of the proposed converter to obtain higher voltage gains at the output ends of this inverter. The idea is to generate a positive rectified voltage at the output point of the QZSI and positive and negative rectified voltages at the output terminals of the QZSI in two-phase approaches to improve the quality of the output voltage of the F-Bridge Inverter (FBI). These rectified voltages are applied to the Full-Bridge Inverter (FBI) block and pure sine waves to obtain the load current and voltages. 1.34% of the Total Harmonic Distortion (THD) for the output voltage has been reported in the one-phase system while 0.88% of THD has been obtained in the two-phase approach. Besides, the reliability of the QZSI was tested through the Mean Time to Failure (MTTF) analysis with the values of the proposed components. The calculations show a very good result for the long-life of the converter. All experimental and simulations steps have been obtained for the same values of the components to support and confirm the accuracy and correctness of the proposed IMSPW. For the states of single-phase and two-phase converters, a 50 Hz sine-wave with 220 V and 440 V peak to peak amplitude has been acquired. Evaluations of the quality of the voltage and current waveforms related to different active (Resistive, P) and reactive (combination of Resistance and Inductance, QL) loads have been carried out. Experimental results show confirmation for all simulation and mathematical results. INDEX TERMS Sinusoidal pulse width modulation (SPWM), F-bridge inverter (FBI), total harmonic distortion (THD), mean time to failure analysis (MTTFA).

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“…Renewable energy is important in reducing all these negative effects. Hydroelectric, solar, geothermal, wind, and clean energy sources are all, but the most popular among them is solar energy [1][2][3]. Solar energy is an inexhaustible source of energy and is not affected by negativities such as global warming.…”

Section: Introductionmentioning

confidence: 99%

Maximum Power Point Tracking by the Small-Signal-Based PI and Fuzzy Logic Controller Approaches for a Two-stage Switched-Capacitor DC-DC Power Boost Converter; Applicable for Photovoltaic Utilizations

Bulut¹,

Ghaderi²

2020

El-Cezeri Fen Ve Mühendislik Dergisi

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For the Photovoltaic panels, one of the main troubles is generating the limited values of the voltage. To enhance this DC voltage for grid applications, high-voltage gain, transformer-less, low-voltage stress, and efficient DC-DC boost converters are used. The main concern is keeping the voltage constant at the output ends of the converter by changing the voltage of the PV array or the value of the load under the maximum power of the array through the simple control approaches. This approach is well-known as the Maximum Power Point Tracking (MPPT). This study presents the control process for the Two-stage Switched-Capacitor (SC) cell-based boost converter with Proportional Integral (PI) and fuzzy logic controller methods. Two-stage SC cell-based boost converter has been used instead of the conventional boost converter to provide higher voltage gain and lower voltage stresses on the power switch. In the proposed study, the voltage gain and efficiency of the boost converter are computed utilizing the method of the inductors volt-second balance and capacitor current-charge approaches. The compared systems were tested at different input voltages, and the output voltage is fixed at 200 VDC. Results exhibit the comparison between PI controller and fuzzy logic controller algorithms applied to the converter. In this article, MATLAB / SIMULINK software was utilized. The final results demonstrate that the fuzzy logic controller has quicker performance compared with PI Control but the PI controller has less overshoots and undershoots at the change time of the input voltage or output load.

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A multi-phase impedance source inverter with an improved controller structure

Cited by 13 publications

References 42 publications

A PID-Controlled High DC Voltage Gain Switched-Inductor and Switched-Capacitor-Based DC-DC Power Buck-Boost Converter Design for Solar Energy Application

A PID-Controlled High DC Voltage Gain Switched-Inductor and Switched-Capacitor-Based DC-DC Power Buck-Boost Converter Design for Solar Energy Application

Influence of a Proposed Switching Method on Reliability and Total Harmonic Distortion of the Quasi Z–Source Inverters

Maximum Power Point Tracking by the Small-Signal-Based PI and Fuzzy Logic Controller Approaches for a Two-stage Switched-Capacitor DC-DC Power Boost Converter; Applicable for Photovoltaic Utilizations

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