Zobrazeno 1 - 10
of 799
pro vyhledávání: '"E. Babaei"'
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 16, Iss 4, Pp 513-523 (2020)
The main purposes of a transformerless grid-connected photovoltaic (PV) system consist of the reduction of leakage current, extraction of maximum power point (MPP), tracking of MPP (MPPT), controlling the active and reactive powers, and having the un
Externí odkaz:
https://doaj.org/article/755da45f33e041569feec3e8bcbfb835
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 16, Iss 1, Pp 107-113 (2020)
In this paper, a new structure for cascade multilevel inverter is presented which consists of a series connection of several sub-multilevel units. Each sub-multilevel unit comprises of eight unidirectional switches, two bidirectional switches, and si
Externí odkaz:
https://doaj.org/article/8a60ee7719a643369715eac9da219067
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 15, Iss 1, Pp 29-44 (2019)
In this paper, a new topology for cascaded multilevel inverter based on quasi-Z-source converter is proposed. In the proposed topology the magnitude of output DC voltage is not limited to the sum of magnitude of DC voltage sources. Moreover, the reli
Externí odkaz:
https://doaj.org/article/b02a2aa1373b47089b73b3dc34f6b32c
Publikováno v:
Research Journal of Pharmacognosy, Vol 5, Iss 1, Pp 31-39 (2018)
Background and objectives: Alternative medicine is widely used to replace a variety of commonly prescribed synthetic drugs in order to achieve a state of substantial efficacy with considerably less adverse effects. The present work has focused on the
Externí odkaz:
https://doaj.org/article/dc566ddfb2bb43878f79f90307175560
Autor:
E. Babaei, T. Ahmadzadeh
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 13, Iss 4, Pp 329-339 (2017)
First of all, in this paper, the topology and operation of the three-phase three-level Z-source inverter based on neutral-point-clamped (Z-NPC) are studied. Moreover, different combinations of permissible switching states and control signals are expl
Externí odkaz:
https://doaj.org/article/0d5ec4c33966478284db6212dde84fdd
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 13, Iss 4, Pp 340-352 (2017)
In this paper, a generalized buck-boost Z-H converter based on switched inductors is proposed. This structure consists of a set of series connected switched-inductor cells. The voltage conversion ratio of the proposed structure is adjusted by changin
Externí odkaz:
https://doaj.org/article/2e35299571604d469487dbdc8b5c1e2e
Publikováno v:
Journal of Operation and Automation in Power Engineering, Vol 5, Iss 1, Pp 31-42 (2017)
In this paper, a new structure of step-up dc-dc converter by using coupled inductor and active-clamped circuit is proposed. The proposed converter generates high voltage gain in comparison with the conventional dc-dc converters. Duo to using active-c
Externí odkaz:
https://doaj.org/article/bcfd45bed2ec4277894222f394176d59
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 13, Iss 2, Pp 161-169 (2017)
This paper proposes a new single phase transformerless Photovoltaic (PV) inverter for grid connected systems. It consists of six power switches, two diodes, one capacitor and filter at the output stage. The neutral of the grid is directly connected t
Externí odkaz:
https://doaj.org/article/212269d9f98640a98f186231758f1334
Autor:
E. Babaei, T. Ahmadzadeh
Publikováno v:
Journal of Operation and Automation in Power Engineering, Vol 4, Iss 2, Pp 117-131 (2016)
In this paper, a new structure for buck-boost Z-source converter based on Z-H topology is proposed. The proposed converter consists of two LC networks similar to the conventional Z-source and Z-H converters. One of the characteristics of the proposed
Externí odkaz:
https://doaj.org/article/2538bfbc5ffd482caff213aeb6b613e3
Publikováno v:
Iranian Journal of Electrical and Electronic Engineering, Vol 12, Iss 3, Pp 206-221 (2016)
In this paper, several optimum structures of a cascaded multilevel inverter is proposed. This optimization is based on generation a constant number of output voltage levels by using minimum number of power switches or dc voltage sources or minimum am
Externí odkaz:
https://doaj.org/article/624f55319d4742259640cd873c15130f