New Alternative Passive Networks to Improve the Range Output Voltage Regulation of the PWM Inverters

Strzelecki, Ryszard; Bury, W.E.; Adamowicz, Marek; Strzelecka, Natalia

doi:10.1109/apec.2009.4802762

Cited by 16 publications

(10 citation statements)

References 9 publications

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“…Figure 3(e) shows the inductor-capacitor-capacitor-transformer qZSN (LCCTqZSN) [10]- [12]. It combines inductor L2 and capacitor C1 into a unique two-port network of high-frequency transformers (a pair of coupled inductors L 1 T and L 2 T ) and a blocking capacitor .…”

Section: Four Derived Qzsnsmentioning

confidence: 99%

“…More recently, various studies of voltage-fed ZSIs/qZSIs have been devoted in 1) their derived topologies to improve the voltage gain of the basic ZSI/qZSI [6]- [12]; 2) Z-source pulsewidth modulations (PWMs) to achieve buck/boost [13]- [21]; 3) feedback control and parameter design by statespace averaging or dynamic modeling [22]- [33]; 4) applications, such as traction drive [34]- [36], wind [37]- [39], and PV power conversions [40]- [42]; and 5) combinations with traditional power conversion techniques, e.g., integrating with energy storage batteries (ESBs) [43]- [49], coupling into the conventional matrix converter [50]- [52], neutral-point-clamped inverter [53]- [55], and cascade multilevel inverter (CMI) [56]- [63], etc. Studies also carried out current-fed ZSI/qZSI [64]- [66] and ZS/qZS dc-dc converters [67]- [72].…”

mentioning

confidence: 99%

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

Liu

Abu‐Rub

2014

EEE Ind. Electron. Mag.

179

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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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Section: Four Derived Qzsnsmentioning

confidence: 99%

mentioning

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.

179

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“…These topologies are based on the introduction of the high-frequency transformer and additional capacitors. A Z-source NPC inverter with a single impedance network presented in [31][32][33] could be supplied from a single input voltage source ( Fig. 2a).…”

Section: Introductionmentioning

confidence: 99%

LCCT‐derived three‐level three‐phase inverters

Shults

Husev

Blaabjerg

et al. 2017

IET Power Electronics

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Solutions for a family of the novel three-level neutral-point-clamped (NPC) inductor-capacitor-capacitor-transformer (LCCT)-derived three-phase inverters are described and compared. Component design guidelines and steady state analysis, current and voltage waveforms are given. The authors' simulation results confirm the theoretical predictions. It was found that an asymmetrical three-level NPC LCCT-derived inverter with a single diode in the impedance source network is the most promising solution. Experimental results for an asymmetrical three-level NPC LCCT-derived inverter with a single input voltage source and continuous input current are presented. The main advantages and design requirements are discussed.

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“…As compared with the TZS, double-reduced capacitance of the TQZS with a unity turns ratio can be achieved. Many other topologies are available to increase the gain factor [10][11][12][13][14][15], the TZS network being among them [14]. Many other topologies are available to increase the gain factor [10][11][12][13][14][15], the TZS network being among them [14].…”

Section: Introductionmentioning

confidence: 99%

“…However, after capacitance replacing, the shape of the input current will worsen, and a discontinuous input current is introduced [9]. Many other topologies are available to increase the gain factor [10][11][12][13][14][15], the TZS network being among them [14]. Logical deviation of an inductor's coupling idea occurred in the Y-source network (Figure 2(f)).…”

Section: Introductionmentioning

confidence: 99%

Hysteresis current control with distributed shoot‐through states for impedance source inverters

Husev

Chub

Romero‐Cadaval

et al. 2015

Circuit Theory & Apps

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This paper presents a hysteresis current control technique with shoot-through states distribution. This control algorithm could be applied to three-level and multi-level inverters with any impedance source network where reference current control signal along with shoot-through states are required. Possible modifications of the presented algorithm are discussed. The steady-state analysis was made to explain the operation principle of the algorithm. As a result, the link between the band ratio of the hysteresis current controller, the input voltage, and the desired DC-link voltage was obtained. All theoretical predictions were proved by simulation and experimental results. Future applications are discussed.Hysteresis current control, which is based on the current reference signal, is often used in traditional CSI and voltage source inverter solutions [32][33][34][35][36][37]. In addition, several approaches for multilevel converters are described in [38,39]. Commonly, hysteresis control is preferable because of simplicity, fast deadbeat transient response, and overcurrent protection. But it is difficult to implement it in the system with shoot-through states.This paper proposes a novel hysteresis current control for a single-phase inverter based on any IS network with distributed shoot-through states. Section 2 explains the novel algorithm in detail. The steady-state analysis is presented in Section 3. Section 4 describes the simulation along with experimental results. Finally, conclusions are presented in Section 5. This paper is based on earlier preliminary publication [40] and includes a comprehensive theoretical analysis and experimental results; however, it is not presented there.

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New Alternative Passive Networks to Improve the Range Output Voltage Regulation of the PWM Inverters

Cited by 16 publications

References 9 publications

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

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

LCCT‐derived three‐level three‐phase inverters

Hysteresis current control with distributed shoot‐through states for impedance source inverters

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