This article proposes an approach and develops appropriate method of applying linear non-equilibrium thermodynamics to analyze energy processes, in particular using the example wind conversion system (WECS) with a directly connected vertical axis turbine (VAWT) vector-controlled permanent magnet synchronous generator (PMSG). The main steps proposed are description component subsystems as univer...

This paper proposes a robust finite-time controller (FTC) for permanent magnet synchronous generator (PMSG)-based wind turbine (WTG). An adaptive observer is used the rotor angle, speed, and torque estimations of PMSG, thus eliminating use anemometers. The robustness proposed FTC regarding parameter uncertainty external weak power grid analyzed. impacts short-circuit ratio (SCR) at point common...

The aims of this study were, firstly, to analyze the biochemical compositions of serum and follicular fluid (FF) from prepubertal gilts after PMSG (1,000 IU) treatment. The concentrations of total proteins, lipids, cholesterol, glucose and sex hormones (progesterone, P4; estradiol-17β, E2; testosterone, T) were measured. Secondary, the effects of porcine FF (pFF) addition (40% and 100%) in IVM ...

Nitric oxide (NO) has emerged as a novel regulator of several ovarian events, such as ovulation, steroidogenesis, and apoptotic cell death. The NO synthases (NOS) are a family of enzymes that catalyze the oxidation of L-arginine to NO and L-citrulline. The purpose of the present study was to localize NOS isoforms in the rat ovary and to examine their hormonal regulation. We conducted immunohist...

In this paper, a model of a variable speed wind turbine using a permanent magnet synchronous generator (PMSG) is presented and the control schemes are proposed. The model presents the aerodynamic part of the wind turbine, the mechanic and the electric parts. Simulations have been conducted with Matlab/Simulink to validate the model and the proposed control schemes.

In this paper, a comparative analysis of Total Harmonic Distortion (THD) between wind farms with double-fed induction generators (DFIG) and synchronous permanent magnet (PMSG) integrated into the grid is developed. The Fast Fourier Transform (FFT) technique to evaluate output current signal THD in different fault conditions indicate best performance among used. generation problems are associate...

In this paper, a standalone permanent magnet synchronous generator (PMSG) system is designed to generate power at maximum point (MPP). The variable speed operation of wind energy conversion consists PMSG, controlled rectifier and voltage source inverter co the load. Proportional integral (PI), sliding mode (SM), feed forward neural network (FFNN) control strategies are applied in field oriented...

The use of Universal type motors is very commonly used, both in daily life and research activities. universal motor can be used as prime mover generator PMSG (Permanent Magnet Synchronous Generator), which its application there are obstacles, namely the difficulty stabilizing speed due to influence changes load connected PMSG, this affects output voltage generated by system. In case, a stabiliz...

PPARs are a family of nuclear hormone receptors involved in various processes that could influence ovarian function. We investigated the cellular localization and expression of PPARs during follicular development in ovarian tissue collected from rats 0, 6, 12, 24, and 48 h post-PMSG. A second group of animals received human CG (hCG) 48 h post-PMSG. Their ovaries were removed 0, 4, 8, 12, and 24...