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Showing 1 to 20 of 26 for “"PMSG"”.
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Integration of PMSG-based wind power plant to power systems using a smart energy storage system.
Rising public awareness for environmental protection and continuously increasing energy consumption, coupled with the shortage of power generation and steady progress in power deregulation and utility restructuring, have created increased interest in renewable energy sources (RESs). Hydroelectric, …
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Development of a power conditioner for a PMSG-based wind energy system integrated into a weak grid
… where a permanent magnet synchronous generator (PMSG) based wind energy conversion system (WECS) is integrated into a weak AC grid. The system comprises of a machine-side (MSC) and a grid-side (GSC) converter, which provides available ancillary services and is envisaged to augment existing power …
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Ovarian sensitivity of the prepubertal ewe to exogenous gonadotropins
… was compared after administration of 500 IU PMSG, 750 IU hCG, a combination of PMSG and hCG (500 IU PMSG followed by 250 IU hCG), 4, 8, 20, 30 or 40 mg of ovine pituitary extract or 12 mg of FSH-p.
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Impact assessment of large-scale penetration of permanent magnet synchronous generators on power quality
… of permanent magnet synchronous generator (PMSG) based wind turbines on power quality of the grid. PMSGs are attractive due to the absence of a gearbox in the drive-train, which results in lower maintenance costs and higher reliability. Moreover, the advancements in power electronics have …
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System Frequency Support of Permanent Magnet Synchronous Generator-Based Wind Power Plant
… synchronous generator wind Turbine System (PMSG-WTG) with full power back to back converters tends to become one of the most promising wind turbine technologies thanks to various advantages. It possesses a significant amount of kinetic energy stored in the rotating mass of turbine blades, …
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Synchronizing Estrus and Improving Subsequent Production and Performance with Prostaglandin F2 Alpha and Pregnant Mare Serum Gonadotropin
… weaning). Farrowing rate was higher (P<0001) for PMSG treated sows than controls (100 vs. 63.46%, respectively). PMSG showed no significant (P>.05 effect upon improving number born alive among treated and control sows (11.13 vs. 10.57, respectively); however, there was a trend toward increased …
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Reactive power compensation of fixed speed wind turbines using a hybrid wind turbine technology
… on the permanent magnet synchronous generator (PMSG) or the doubly-fed induction generator (DFIG). Irrespective of this technical migration in wind power systems, the FSWTs still represent a considerable percentage of globally installed wind turbines (WTs). Furthermore, some wind turbine (WT) …
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Effects of a superovulatory dose of pregnant mare’s serum gonadotropin on uterine morphology, carbohydrate histochemistry and serum steroids in immature rates
… IU) dose of pregnant mare's serum gonadotropin (PMSG) on the morphology of the endometrium and the carbohydrate composition of the uterine glycocalyx and secretions in immature rats and in untreated mature rats. The morphological and carbohydrate histochemical changes found were correlated to the …
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INTERAREA OSCILLATION DAMPING BY USING A PERMANENT MAGNET SYNCHRONOUS GENERATOR WIND TURBINE
The permanent magnet synchronous generator (PMSG) wind turbine control for damping power system inter-area oscillations is a topic of much interest. However, the PMSG wind turbine controls in the generator and grid sides such as a PMSG speed control or dc voltage control do not have a sufficient …
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Modeling, analysis and experimental verification of variable-speed constant-frequency power conversion scheme with a permanent magnet synchronous generator
… with a permanent magnet synchronous generator (PMSG) is studied in this dissertation. The scheme consists of a PMSG, diode-rectifier bridge, dc-link filter, controlled converter for conversion to the constant frequency ac utility, and transformer. The various subsystems listed above are modeled …
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AI-based hybrid optimisation of multi-megawatt scale permanent magnet synchronous generators for offshore wind energy capture
… years. Permanent Magnet Synchronous Generators (PMSGs) have become prominent in large wind energy system applications. The Radial Flux machine topology has become particularly attractive. In order to improve the competitiveness of large wind energy systems, the main focal point of current …
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Mathematical Modelling of Grid Connected Fixed- Pitch Variable-Speed Permanent Magnet Synchronous Generators for Wind Turbines
… a 10kW permanent magnet synchronous generator (PMSG), which is designed for a fixed-pitch variable-speed wind turbine, and its corresponding simulation model for the control of the PMSG for grid connection using MATLAB/Simulink. The model includes sub-modules, such as a model of the wind speed, …
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Design of 10 MW low inductance PM generator for direct drive offshore wind turbine
… drive permanent magnet synchronous generators (PMSG) in wind turbine applications are becoming increasingly popular due to their reliability compared to medium speed generators with a gearbox. A proposed generator-drive scheme with reduced active switching provides a way to reduce the power …
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A Comparison of Pregnant Mare Serum Gonadotropin and P.G. 600® to Improve Reproductive Efficiency in Sows
… Sterile Saline Solution 0.9% 2. (M) Treatment (PMSG): 12ml of Pregnant Mare Serum 3. (P) Treatment (PG600)® 5ml of P.G. 600 (Intervet America Inc., Millsboro, DE) No differences were observed for total number of pigs born among treatments (P>.05). Neither parity, body condition or breed …
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ΜΕΤΑΒΟΛΕΣ ΙΔΙΟΤΗΤΩΝ ΤΗΣ ΤΡΑΧΗΛΙΚΗΣ ΒΛΕΝΝΑΣ ΤΟΥ ΠΡΟΒΑΤΟΥ ΥΣΤΕΡΑ ΑΠΟ ΣΥΓΧΡΟΝΙΣΜΟ ΤΟΥ ΟΙΣΤΡΟΥ ΚΑΙ ΕΠΙΔΡΑΣΗ ΤΟΥΣ ΣΤΗ ΣΥΜΠΕΡΙΦΟΡΑ ΤΩΝ ΣΠΕΡΜΑΤΟΖΩΑΡΙΩΝ
… OESTRUS BY MEANS OF PROGESTERONE IMPLANTS AND PMSG OPTIMUM RECEPTIVITY OF THE CERVICAL MUCUS TO SPERMATOZOA IS OBSERVED AT THE ONSET OF OESTRUS WHILE IN SHEEP SYNCHRONIZED BY MEANS OF VAGINAL SPONGES MAP AND PMSG TOWARDS THE END OF OESTRUS.
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Control of endometrial secretion in cattle and production of transgenic swine
… with pregnant mares serum gonadotropin (PMSG) and human chronic gonadotropin (hCG; LALT), 3) gilts between 11 and 16 d of the estrous cycle receiving ALT for 5 to 9 d and superovulated (SALT), and 4) precocious ovulation induced with PMSG and hCG (PRE). Zygotes from PRE donors received …
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Induction and permanent-magnet synchronous generators for small-scale power system applications
… on the permanent-magnet synchronous generator (PMSG) is focused on autonomous power system applications. A PMSG with inset rotor, which possesses an inverse saliency characteristic, is found to give satisfactory performance when supplying isolated loads. Zero voltage regulation and other …
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Bústjórn við nýtingu á blóði fylfullra hryssna til lyfjaframleiðslu
… fangtíminn, styrkur og varanleiki PMSG í blóði hryssnanna hefði mest áhrif. Könnun sem byggði á spurningalista var send til blóðtökubænda en svarhlutfall var afar lélegt sem skýrist mögulega af því að lítil opinber umræða er um búgreinina og þá helst á gagnrýnum nótum. Könnunin gaf …
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Current source based wind energy conversion system
… uses a permanent magnet synchronous generator (PMSG). It has been shown that the proposed current source converter based WECS can operate successfully under maximum power point tracking and meet all grid requirements such as ac fault ride-through and power quality aspects at the point of common …
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Estradiol-17beta-Oxytocin Induced Cervical Dilation in Sheep: Application to Transcervical Embryo
… and 13.9% of the total. Ewes received 400 IU of PMSG i.m. at -24 h. The CL were counted laparoscopically on d 6 (d 0 = estrus). Number of CL increased linearly (P < .01) with dose of pFSH; there were 1.8, 3.6, 6.3, and 11.2 CL/ewe, respectively. Experiment 3 was conducted to determine the …
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