Sliding-mode control of z-source inverter

Rajaei, Amirhossein; Kaboli, Shahriyar; Emadi, Ali

doi:10.1109/iecon.2008.4758081

Cited by 39 publications

(26 citation statements)

References 23 publications

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“…There are many PWM techniques for boosting the input voltage to higher values, which are discussed in [14][15][16][17]. For DC side voltage regulation, different control strategies, like sliding mode control (SMC), have also been investigated in the literature [18][19][20]. SMC was investigated in a grid-connected QZSI * Correspondence: ukshinde@yahoo.com for improving dynamic response of capacitor voltage control [21].…”

Section: Introductionmentioning

confidence: 99%

Grid-connected quasi-z-source inverter with battery

Shinde¹,

Kottagattu²,

Kadwane³

et al. 2018

Turk J Elec Eng & Comp Sci

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Grid-connected inverters are now increasingly used in distributed microgrid and smart-grid applications.The advantages of a quasi-Z-source inverter (QZSI), like single-stage operation, lower component rating, continuous input current, and common DC rail, led to an investigation of this converter for grid-connected applications. This paper presents a grid-connected QZSI with both AC and DC side controls. A new battery-charging configuration is also suggested across the capacitor through which the DC side control loop is regulated. Fast dynamic response and reduced harmonics are demonstrated through simulation and experimental results.

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Section: Introductionmentioning

confidence: 99%

Grid-connected quasi-z-source inverter with battery

Shinde¹,

Kottagattu²,

Kadwane³

et al. 2018

Turk J Elec Eng & Comp Sci

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“…Gci In [23], Gci is performed by proportional (P) regulator; whereas it is improved by PI regulator in considering to increase the stability margin [27]. Figure 10 shows a block diagram of nonlinear control algorithms applied to ZSI, such as fuzzy control [46], sliding mode control [28], [47], neural network control [29], and model predictive control (MPC) [30], [31]. By those nonlinear control methods, realtime variables , Vin , vc , iL and vdc are employed in the related algorithms, and then switching control signals are directly obtained by tracking the reference values.…”

Section: Controlsmentioning

confidence: 99%

“…[34] The single-loop control has feedback from the dc source voltage Vin [22], capacitor voltage vc [24], [34], or the dc-link voltage vdc [25], [28], then the command shoot-through duty ratio D is generated. It is noted that the dc-link voltage of ZSI is pulse voltage waveform due to shoot-through zero states, which is not suitable for direct utilization as feedback variable.…”

Section: Controlsmentioning

confidence: 99%

Z-Source\/Quasi-Z-Source Inverters: Derived Networks, Modulations, Controls, and Emerging Applications to Photovoltaic Conversion

Liu

Abu‐Rub

2014

EEE Ind. Electron. Mag.

187

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T he current and emerging investigations on Z-source/quasi-Zsource inverters (ZSIs/qZSIs) are presented. The ZSI/qZSI fulfills buck/boost capability in single-stage topology and overcomes the limits of traditional voltage source inverters (VSIs). Hence, high reliablity, high efficiency, and low cost can be achieved. The recently derived impedance networks with improved voltage gain are discussed. The classic and newly proposed modulations and feedback controls for ZSIs/qZSIs are compared. Finally, the emerging applications and trends of ZSIs/qZSIs to photovoltaic (PV) power generation are discussed. This study offers a comprehensive and systematic reference for the future development of the high-performance ZSI/qZSI.The ZSI [1] and qZSI [2] were proposed in 2003 and 2008, respectively, to overcome the barriers of traditional two-level VSIs and current source inverters (CSIs). Traditional VSIs have to perform dead time between the upper and lower switches in one bridge leg to avoid short circuit, which introduces ac output waveform distortions. On the other hand, an extra dc-dc boost converter is usually required

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“…All traditional zero states are converted to shoot through states, due to conversion minimize the voltage stress across the devices. This control method introduces low current ripples in inductor current and capacitor voltage, it gives high voltage gain and high modulation index as shown in fig 6. Maximum boost control method PWM, the shoot through interval state repeats periodically every 3 as shown in below fig 6. In this method voltage stress across switching device is reduced at high modulation index, due to this, we get high voltage gain high boost factor [5].But inductor current and capacitor voltage consists of low frequency current ripples, due to this higher requirement of passive components THD, shoot through time interval are high to avoid disadvantages of this method, maximum constant boost control method is introduced.…”

Section: Bmaximum Boost Control Methodsmentioning

confidence: 99%

Voltage Gain Comparison of Z-Source Multilevel Inverter with Different Boosting Techniques

Manjunath¹,

Reddy²,

Sreedevi³

2014

IJAREEIE

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This paper proposes Z-source network is connected to multilevel inverter to obtained high voltage gain with reduced THD and voltage stress; here PV cell will act as a DC source. Now a day"s multilevel inverter gives more improvement in AC transmission systems, power quality devices, etc. Normally carrier based PWM techniques are used in conventional inverter, but boost operation is not possible, Z-source network is used to get high voltage gain and reliability. By using different boosting techniques i.e., Simple boost, maximum boost & maximum constant boost gating pulses are generated. The performance of five level diode clamped z-source multilevel inverter has been analyzed. The simulation of five level diode clamped z-source multilevel inverter developed by using MATLAB/SIMULINK

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Sliding-mode control of z-source inverter

Cited by 39 publications

References 23 publications

Grid-connected quasi-z-source inverter with battery

Grid-connected quasi-z-source inverter with battery

Z-Source\/Quasi-Z-Source Inverters: Derived Networks, Modulations, Controls, and Emerging Applications to Photovoltaic Conversion

Voltage Gain Comparison of Z-Source Multilevel Inverter with Different Boosting Techniques

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