Dynamic Modeling and Analysis of $Z$ Source Converter—Derivation of AC Small Signal Model and Design-Oriented Analysis

Liu, Jingbo; Hu, Jiangang; Xu, Longya

doi:10.1109/tpel.2007.904219

Cited by 266 publications

(188 citation statements)

References 9 publications

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“…For improved topology during the non-shootthrough state, as shown in Fig. 4(b), the Z-source inductor current decreases, and the current ripple can be expressed as For the previous topology, however, during the shoot-through state, the Z-source inductor current increases, and the current ripple can be expressed as From (10) and (11), we can see that the current ripple is the same in these two topologies.…”

Section: B Z-source Inductor Current Ripplementioning

confidence: 96%

Enhanced Z-Source Inverter with Capacitor Voltage Stress and Soft-Start Capability

2017

IJMTER

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Abstract-This paper proposes an improved Z-source inverter topology. Compared to the traditional Zsource inverter, it can reduce the Z-source capacitor voltage stress significantly to perform the same voltage boost, and has inherent limitation to inrush current at startup. The control strategy of the proposed Z-source inverter is exactly the same as the traditional one, so all the existing control strategy can be used directly. A soft-start strategy is also proposed to suppress the inrush surge and the resonance of Z-source capacitors and inductors. The operation principle of the proposed topology and comparison with the traditional topology are analyzed in detail. Simulation and experimental results are given to demonstrate the new features of the improved topology.

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Section: B Z-source Inductor Current Ripplementioning

confidence: 96%

Enhanced Z-Source Inverter with Capacitor Voltage Stress and Soft-Start Capability

2017

IJMTER

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“…In order to properly compare the voltage stresses of the two inverters, an equivalent dc voltage is introduced [19]. The equivalent dc voltage is defined as the minimum dc voltage to produce an output voltage ph v , and it can be expressed as GV in from (12).…”

Section: B Comparison Of the Voltage Stressesmentioning

confidence: 99%

Development of Multi-Cell Active Switched- Capacitor and Switched-Inductor Z-Source Inverter Topologies

Ho¹,

Chun²,

Kim³

2014

Journal of Power Electronics

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This paper proposes new active switched-capacitor and switched-inductor Z-source inverter (ASC/SL-ZSI) topologies, which can provide a higher boost ability with a small shoot-through time. The proposed ASC/SL-ZSIs inherit all of the advantages of the classical ZSI, and have a stronger voltage boost inversion ability when compared with the classical ZSI. Thus, the output ac voltage quality is significantly improved. In addition, more cells can be cascaded in the impedance network in order to obtain a very high boost ability. The proposed topologies can be applied to photovoltaic or fuel-cell generation systems with low-voltage renewal sources due to their wide range of obtainable voltages. Both simulations and the experimental results are carried out in order to verify performance of the proposed topologies.

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“…Applying the volt-second balance principle to each inductor [5], (10)(11)(12) and (13) When the load is resistive, (14) is concluded, as follows.…”

Section: Esl-γ-z-source Invertermentioning

confidence: 99%

“…Some of the studies are focused on modeling and control [5][6][7][8], modulation strategy [9][10][11][12], applications [13][14][15][16], and the development of new topologies [17][18][19][20][21][22][23][24]. In [19][20][21], the focus is on improving the boost factor of the ZSI.…”

Section: Introductionmentioning

confidence: 99%

ESL-𝚪-Z- Source Inverter

Pan¹,

Sun²,

Wang³

et al. 2014

Journal of Electrical Engineering and Technology

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-On the basis of the traditional ZSI (Z-source inverter), this paper presents a ESL-Γ-ZSI, which uses a unique Γ-shaped impedance network and an extended SL network for boosting its output voltage in addition to their usual voltage-buck behavior. The inverter can increase the boost factor through adjusting shoot-through duty ratio and increasing the number of inductors. Capacitor voltage stress of ESL-Γ-ZSI is a constant when 1>D>0, and ESL-Γ-ZSI has small inductor current stress. The working principle of ESL-Γ-ZSI and comparison with the classical ZSI and SL-ZSI are analyzed in detail. The power loss comparison between ESL-Γ-ZSI and Cuk converter is analyzed detailedly. Simulation and experimental results are given to demonstrate the operation features of the inverter.

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Dynamic Modeling and Analysis of $Z$ Source Converter—Derivation of AC Small Signal Model and Design-Oriented Analysis

Cited by 266 publications

References 9 publications

Enhanced Z-Source Inverter with Capacitor Voltage Stress and Soft-Start Capability

Enhanced Z-Source Inverter with Capacitor Voltage Stress and Soft-Start Capability

Development of Multi-Cell Active Switched- Capacitor and Switched-Inductor Z-Source Inverter Topologies

ESL-𝚪-Z- Source Inverter

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