This paper presents the transient stability enhance of DFIG-based offshore wind farm connected power system network using STATCOM. The studied system is simulated in MATLAB/Simulink platform for study the effect of transient disturbances like, three phases to ground fault, sudden load change, voltage sag & swell. A fully aggregate model of wind DFIG is used for simulation study of system. The DFIG based wind generator, more sensitive to the grid faults than other wind generators. During transient disturbances DFIG terminal voltage reduced below the critical value and hence DFIG trips. The external reactive power support is required for stabilization of wind farm during the transient disturbances. In studied system STATCOM is used to fulfil the reactive power requirement to stabilize the wind farm. In presence of STATCOM, DFIG does not trip during transient disturbances of power system and all bus voltages & DFIG terminal voltage are also improved.
Introduction:
Typical lacunar strokes arising from lesions of the internal capsule result in pure motor dense hemiplegia, ataxic hemiparesis, clumsy hand-dysarthria syndrome, and capsular warning syndrome. Abulia usually occurs secondary to lesions of the frontal lobe, basal ganglia, or anterior cingulate cortex (Brodmann area 24). Internal capsular infarcts have been only rarely been reported in a few case reports to result in abulia in the absence of any motor deficit.
Methods:
We report the case of a 40-year-old male presenting with an abrupt onset abulic state without any motor deficit resulting from a right internal capsular infarct.
Results:
A 40-year-old male patient presented with an abrupt onset abulic state on awakening from an overnight sleep. No motor deficit or corticospinal tract signs were observed. Magnetic resonance imaging brain revealed an acute right internal capsular infarct which was responsible for the acute-onset abulia. The patient had a significant improvement with resolution of the abulia within 2 weeks.
Conclusion:
Neurologists, psychiatrists, and internists should be aware of this clinical presentation of an abulic or akinetic mute state without any motor deficit which could be easily passed off as a metabolic or toxic encephalopathy or as a psychiatric illness, and a high index of clinical suspicion and appropriate imaging are required to define the appropriate etiology.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.