Analysis of PWM Z-Source DC-DC Converter in CCM for Steady State

Galigekere, Veda Prakash; Kazimierczuk, Marian K.

doi:10.1109/tcsi.2011.2169742

Cited by 163 publications

(138 citation statements)

References 15 publications

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“…Moreover, a comparison of the CCM load range has been made between the proposed converter and the conventional Z-source DC-DC converter in [30], as shown in Fig. 6, for which the switching frequency f s is set to 50kHz .…”

Section: Current Stress Of Each Componentmentioning

confidence: 99%

“…The output voltage gain of the proposed SC-qZSC Type-1 is plotted in Fig.7as a function of the duty ratio D, and compared with the3-Z-network boost converter in [6], the symmetrical hybrid switched-inductor converter (SH-SLC) in [16], the converter in [19] (the turns ratio of the coupled inductor is set to 1), the high step-up converter with double inductor energy storage cell based switched-capacitors (DIESC-SC converter) in [20], and the conventional ZSC in [30] (Table 2).…”

Section: Comparison Of Output Voltage Gainsmentioning

confidence: 99%

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High step-up quasi-Z-source DC–DC converters with single switched capacitor branch

Zhu

Zhang

2017

J. Mod. Power Syst. Clean Energy

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Aiming to integrate the respective merits of the switched-capacitor converter and the quasi-Z-source converter. An novel high step-up quasi-Z-source DC-DC converter with a single switched-capacitor branch is proposed. Compared to other high boost DC-DC converters, the proposed converter can provide higher output voltage gain, lower current stress across the switches, and lower voltage stress across the output diodes by using the same or similar passive and active components. Therefore, the efficiency and reliability of the converter can be improved. The topological derivation, operating principle, parameter selection, and comparison with other DC-DC converters are presented. Finally, both simulations and experimental results are given to verify the characteristics of the proposed converter.

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Section: Current Stress Of Each Componentmentioning

confidence: 99%

Section: Comparison Of Output Voltage Gainsmentioning

confidence: 99%

High step-up quasi-Z-source DC–DC converters with single switched capacitor branch

Zhu

Zhang

2017

J. Mod. Power Syst. Clean Energy

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“…The reliability analysis of parallel components is defined as one component operates through the whole time period from beginning to ending, such type of system is called perfect reliable. The paper [21] focuses on the general reliability of the parallel components in the form of reliability function and literature [22] discussed the reliability analysis and optimization of the integrated circuit. The integrated devices reduce the leakage current of semiconductor switching devices for a long time period.…”

Section: Introductionmentioning

confidence: 99%

Modeling and reliability analysis of three phase z-source AC-AC converter

Prasad¹,

Maity²

2017

Archives of Electrical Engineering

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This paper presents the small signal modeling using the state space averaging technique and reliability analysis of a three-phase z-source ac-ac converter. By controlling the shoot-through duty ratio, it can operate in buck-boost mode and maintain desired output voltage during voltage sag and surge condition. It has faster dynamic response and higher efficiency as compared to the traditional voltage regulator. Small signal analysis derives different control transfer functions and this leads to design a suitable controller for a closed loop system during supply voltage variation. The closed loop system of the converter with a PID controller eliminates the transients in output voltage and provides steady state regulated output. The proposed model designed in the RT-LAB and executed in a field programming gate array (FPGA)-based real-time digital simulator at a fixedtime step of 10 µs and a constant switching frequency of 10 kHz. The simulator was developed using very high speed integrated circuit hardware description language (VHDL), making it versatile and moveable. Hardware-in-the-loop (HIL) simulation results are presented to justify the MATLAB simulation results during supply voltage variation of the three phase z-source ac-ac converter. The reliability analysis has been applied to the converter to find out the failure rate of its different components.

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“…LEDs are more energy efficient than the incandescent bulbs, halogen bulbs and even compact fluorescent light bulbs. In [5] the author Galigekere applied the method of PWM (pulse width modulation) to save the energy for an oscillation circuit contains with some capacitors and inductors that is working in CCM (continuous conduction mode). We inspect the efficiency caused by the whole application of small signal with transistor circuit proposed by Lian [6].…”

Section: Introductionmentioning

confidence: 99%

Aware of Life-Time in Lighting Applications by Applying PWM

Iong-Zong¹,

hao²

2014

2014 International Conference on Automatic Control Theory and Application

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Abstract-A contactless way to prolong the life-time of lighting applications by PWM (pulse width modulation) device power system is developed in this article. The system can match most sustainable energy, such as solar energy or wind power generator. It can automatically switch with the best way to control sustainable energy power system which fit in. On the other hand, because single chip can transfer power instantly to drive device up, like charge smartphone, it is a highly customize device. With the control system, traditional sustainable energy device can work much longer life-time and stable. Through adjustable wireless protocol, PWM, low-power multi-purpose regulator circuit and instant feedback display, so it can be optimized most sustainable energy devices. The proposed control system is built by a single chip microcontroller which is serving as the integration of the control core of the circuit, voltage feedback monitor at the same time. In order to improve system performance, the research made for different drive designs to analyze and compare, and simulated calculation and experimented.

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Analysis of PWM Z-Source DC-DC Converter in CCM for Steady State

Cited by 163 publications

References 15 publications

High step-up quasi-Z-source DC–DC converters with single switched capacitor branch

High step-up quasi-Z-source DC–DC converters with single switched capacitor branch

Modeling and reliability analysis of three phase z-source AC-AC converter

Aware of Life-Time in Lighting Applications by Applying PWM

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