This paper provides an H∞ robust control strategy for a permanent magnet synchronous generator (PMSG)-based wind farm to realize subsynchronous resonance suppression (SSR) subject uncertain system distortions and parameter perturbation. Firstly, eighth-order state space mathematical model of PMSG-based is established, including the grid-side converter (GSC), GSC controller, phase-locked loop (P...

Abstract This paper is concerned with the modeling of three-phase permanent magnet synchronous generator (PMSG) and its load in dq0 reference system. The was considered to be directly connected a balanced load. loads under consideration were R RLC type loads. connection can simulated using standard PMSG dq model Park transformations, but requires system as whole. LabVIEW simulations these model...

A modified four-dimensional linear active disturbance rejection control (LADRC) strategy is proposed for a dual three-phase permanent magnet synchronous generator (DTP-PMSG) system to reduce cross-coupling between the d and q axis currents in d-q subspace harmonic x-y subspace. In subspace, uses model-based LADRC enhance decoupling effect axes ability against parameter variation. 5th 7th curren...

Abstract This paper provides a systematic analysis of the large scale PMSG (permanent magnet synchronous generator)-based WECS (wind energy conversion system) torsional vibration problem under MPPT (maximum power point tracking) control and constant control. is from perspective SSO (sub-synchronous oscillation), SSH harmonics) forced vibration. The cause negative total system damping, weakened ...

conclusions evaluation of iranian traditional dosage forms like vaginal and rectal types could be an attractive topic of research and the current study can briefly represent the iranian traditional pharmaceutical knowledge on vaginal and rectal drug delivery. objectives the aim of this study is the investigation about iranian traditional pharmaceutical dosage forms of vaginal and rectal medicat...

Wind is one of the most abundant renewable sources of energy in nature. Wind energy can be harnessed by a wind energy conversion system (WECS) composed of a wind turbine, an electric generator, a power electronic converter and the corresponding control system. The most advanced generator type is perhaps the permanent magnet synchronous generator (PMSG). As far as microgrid is concerned the load...

This paper aims to study the control of output voltage a wind turbine (WT) which is composed permanent magnet synchronous generator (PMSG) connected an inverter/rectifier. The first tested on PMSG based classical direct power (CDPC); this technique uses active and reactive as variable. Then, improve quality energy evaluate performance system, we proposed high-order sliding mode (HOSM) with spac...

Permanent-magnet synchronous generator (PMSG) are used widely in wind turbine applications. The performance analysis of PMSG can be enhanced by adopting a number control mechanisms with the benefit advanced optimization techniques. Renewable energy is harnessed from continuously replenishing natural processes. Some commonly known sunlight, water, wind, tides, geothermal heat and various forms b...

In the present work, a methodology that allows optimizing permanent magnet synchronous generator (PMSG) design by establishing limit values of radius and length maximize efficiency for nominal parameters wind turbine is developed. The consists two fundamental models. One model calculates from base, other optimization determines optimum generators according to criteria maximum with minimum weigh...

Ustuner B., U. Gunay, Z. Nur, H. Ustuner: Effects of Long and Short-Term Progestagen Treatments Combined with PMSG on Oestrus Synchronization and Fertility in Awassi Ewes During the Breeding Season. Acta Vet. Brno 2007, 76: 391-397. Synchronization of oestrus has been used to increase reproductive effi ciency in most animals, including ewes. The aim of the present study was to compare the effec...