This paper deals with permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS) integrated with grid with two back to back connected converters with a common DC link. The aim of this research is to model control of direct driven 1.5 MW wind turbine permanent magnetic synchronous generator (PMSG) which feeds alternating current (AC) power to the utility grid .The m...

Pregnant rats were given one of the following doses of misulban on day 15 of pregnancy : 0.25, 0.36, 0.52, 0.75, 0.82, 0.88 or 0.95 mglkg. In the three-month old offspring it was observed that : 1) The number of cyclic rats decreased according to the dose of misulban given to the mothers ; 2) Cyclic rats were given an injection of 20 IU of PMSG at metcestrus followed by an injection of 150 IU o...

Ovulation rate, fertilization rate and prenatal mortality were studied in yearling beef heifers treated with PMSG or FSH and in non-treated controls. Oestrus was synchronized in 50% of the animals in each treatment with an oral progestagen. The gonadotrophin injections were given during the normal oestrous cycle or during the progestagen-administration period. All heifers were inseminated 6 to ...

This paper presents the results of experimental investigation of a low-power wind energy conversion system (WECS), based on a permanent-magnet synchronous generator (PMSG) connected directly to the turbine. A development system was built in order to carry out the experiments. Its detailed description is also provided. The development system can work as an autonomous system for remote sites or a...

The current study designed to evaluate the role of pluripotent stem cells (iPSc) on experimentally-induced ovarian ablation (OA) by evaluating hematological parameters, FSH and E2 changes, molecular histopathological examination. 50 female rats were divided into five groups with 10 in each group. Group (1): control (2): injected Doxorubicin (DOX) (3 mg/kg) Cyclophosphamide (CYP) (50mg/kg) disso...

Simple control of a stand-alone variable speed wind turbine with permanent magnet synchronous generator (PMSG) is presented in this paper. PMSG fed different types loads by means converter where switched mode rectifier connected to the PMSG, boost DC-DC converter, and voltage source inverter (VSI). The operated at measured it tested estimated which based on power calculation power, generating e...

1PG scholar, Dept of Electrical Engineering, A.U. College of Engineering (A), Andhra Pradesh, India. 2 Professor, Dept of Electrical Engineering, A.U. College of Engineering (A), Andhra Pradesh, India. ---------------------------------------------------------------------***--------------------------------------------------------------------Abstract A dual bridge rectifier topology consisting of...

This paper presents a Variable Structure Sliding Mode Control (VS-SMC) scheme and Direct Torque Control (DTC) for Wind Farm (WF) based on the Permanent Magnet Synchronous Generator (PMSG). The WF consists of a 3 PMSGs which are connected to a common dc bus system with rectifier. The dc-bus is connected to the electrical network using only one inverter system, a grid-side filter as well as the t...

Propylthiouracil (PTU)-induced hypothroidism has been shown to produce a significant increase in the uptake of radiophosphorus (““P) by the testes of young chicks. Continued investigation of this effect demonstrated that thyroidectomy of young birds resulted in elevations in testis 32P uptake comparable to those observed following the administration of PTU. It would thus appear that the increas...

A new application of the three-phase buck-resonant converter is presented in this paper. It is shown that the analyzed converter is suitable to operate as the rectifier stage in low power wind energy conversion systems (WECS) based on permanent magnet synchronous generators (PMSG) with variable wind speed. As main features, it presents a single controlled switch, simple implementation and contr...