The paper presents a comparative study of three topologies of recently developed voltage-fed z-source inverter (ZSI) such as simple ZSI, quasi-ZSI and trans-ZSI. Different control techniques, proposed earlier for simple ZSI such as simple boost control, maximum boost control and constant boost control, have been applied here for all type of ZSI topologies. The detailed comparative evaluation of...

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A comparative study of three topologies of recently developed voltage-fed z-source inverter (ZSI) such as simple ZSI, quasi-ZSI and trans-QZSI is presented in this paper. Different control techniques, proposed earlier for simple ZSI such as simple boost control, maximum boost control and constant boost control, have been applied here for all type of ZSI topologies. The detailed comparative eval...

Trigonal-blpyramldal azasilatranes of the type ZSi(NHCH2CH2hN (Z = H, Me, OEt) sotvolyze In MeOH 10 give N(CH2CH2NH2h (Iren) and ZSI(OMeh. Whereas in· lermediates In this reaction are not detected, ZSi[N. (SiR3)CH2CH2laN species afford delectable intermediates of the type ZSI[N(SIR3)CHtCH2]" (NHCH2CH2b..,, N (n = 1. 2) before complete conversion 10 Iren and ZSI(OMe)3 occurs. In cases where ster...

This paper presents a supercapacitor (SC) module connected in parallel with fuel cell (FC) stack to supply a high-performance Z-Source Inverter (HP-ZSI) feeding a three phase induction motor for hybrid electric vehicles applications. The supercapacitor is connected between the input diode and the bidirectional switch of the highperformance ZSI topology. The indirect field-oriented control (IFOC...

This study presents the different control techniques of Z-Source inverter (ZSI) and compares them for same modulation index. Different from traditional inverters, in ZSI circuit configurations simple boost, maximum constant boost can be utilized to perform DC-AC voltage conversion with shoot-through states. The operation principles are explained detail. duty ratio, factor, gain each technique c...

This paper proposes an approach to link photovoltaic arrays with the AC grid using Z-source inverter (ZSI) and quasi-Z-source (QZSI) topologies. These topologies boost DC-link voltage invert it in one stage, resulting a reduction overall system size cost. The presents control technique that fixes on bridge terminals, tracks maximum power point (MPPT), controls amount quality of injected into un...


 Drought is a natural disaster due to less precipitation than the normal that can occur irrespective of climate regimes. Impact assessment drought and monitoring are most important mitigation stratregies combat effects. As single index cannot assess all conditions, in present study multi-variate indices approach has been used monitor drought. Five were assessed using data such as deciles ...

This paper presents, a high speed FPGA implementation of fully digital controller for threephase Z-Source Inverter (ZSI) with two switching strategies include simple boost control and maximum boost control. In this method total of blocks are based on proposed digital circu its only with combinational logic and using pipelining technique. Since it is vital to have a high speed and effective ZSI ...