A Three-Input Central Capacitor Converter for a High-Voltage PV System

Meng, Xiangjian; Liu, Jiaxin; Wang, Gongke; Fang, Jingyang

doi:10.3389/fenrg.2022.930471

Cited by 2 publications

(2 citation statements)

References 30 publications

(34 reference statements)

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“…There is another wellknown converter known as the capacitor converter, which is used frequently in high-voltage processing. The reason for frequency use is their unique feature of utilizing three different input voltages [58]. This unique feature distinguishes it from the other capacitors explained earlier.…”

Section: Figure 8 Output Curve With Variable Input Of An Open Loop Bu...mentioning

confidence: 99%

The Empirical Analysis, Mathematical Modeling, and Advanced Control Strategies for Buck Converter

Ullah,

Rizvi,

Khatoon

et al. 2024

IEEE Access

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The DC-DC converters are essential in power electronics as they maintain a stable output voltage even when there are changes in input voltage and load current. This study introduces an advanced Proportional-Derivative (PD) compensator for buck converters. The compensator enhances stability and transient responsiveness by employing a unique modulation technique that has not been previously applied in this context. The proposed method entails applying an input of 28 volts, which yields an output amplification of 15 volts, even in the presence of interference. The small signal transfer function of the buck converter is meticulously derived, considering the converter's dynamic behavior to achieve exceptional results. The transfer function comprehensively explains the intricate relationship between the input and output voltages, providing the theoretical basis for our distinctive control approach. The MATLAB code accurately generates the Bode diagram of the buck converter by employing the small signal transfer function. The graph illustrates the frequency response of the converter, a crucial factor in enhancing the stability and quality of the output voltage. The proposed research is substantiated by mathematical data shown through several simulated figures, distinguishing it from conventional methodologies. The implemented research achieves the maximum efficiency exceeding 95% with a minimum ripple factor.

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Section: Figure 8 Output Curve With Variable Input Of An Open Loop Bu...mentioning

confidence: 99%

The Empirical Analysis, Mathematical Modeling, and Advanced Control Strategies for Buck Converter

Ullah,

Rizvi,

Khatoon

et al. 2024

IEEE Access

View full text Add to dashboard Cite

show abstract

“…It requires more power semiconductor switches for MC design compared to traditional rectifier-inverter pair circuits. Firstly 3-phase to 3-phase MC is introduced and modulated by Alesina and Venturini; then, later on, various modified circuits are designed and controlled by various PWM schemes (Meng et al, 2022). Generally, different PWM strategies were developed to control the power devices located in altered power converter circuits (Tekwani et al, 2009;Palanisamy et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

HIL real-time simulator based 3D-space vector pulse width modulation for performance analysis of 3-phase matrix converter

et al. 2022

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In this paper, Three Dimensional Space Vector Pulse Width Modulation (3D-SVPWM) is developed to obtain the performance analysis of a 3-phase matrix converter (MC). MC is used to convert 3-phase fixed AC voltage to 3-phase variable AC voltage, which provides superior performance compared to conventional AC to AC converters. The 9-bidirectional power switches in a 3-phase matrix converter are controlled by appropriate gating pulses utilizing 3D-SVPWM. In conventional AC to AC power converters, the common mode voltage is induced across the load terminal, which causes bearing failure and EMI issues and so leads to increased total harmonic distortion (THD). Implementing the 3D-SVPWM approach with the nearest switching state vector (NSV) selection mechanism alleviates these problems. In proposed system, CMV is reduced to 37 V, which is equivalent to a Vdc/8 time of the supplied AC input voltage and THD of 3-phase to 3-phase MC is reduced to 1.12% for output voltage and 2.18% for output current. The output findings of the simulation and real-time simulator are verified using the Matlab Simulink model and the HIL real-time (OPAL-RT) simulator.

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A Three-Input Central Capacitor Converter for a High-Voltage PV System

Cited by 2 publications

References 30 publications

The Empirical Analysis, Mathematical Modeling, and Advanced Control Strategies for Buck Converter

The Empirical Analysis, Mathematical Modeling, and Advanced Control Strategies for Buck Converter

HIL real-time simulator based 3D-space vector pulse width modulation for performance analysis of 3-phase matrix converter

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