Photovoltaic power plants usually do not provide reactive output; hence the application of large photovoltaics in systems will decrease voltage stability level system. Capacitor banks can to compensate photovoltaic plants; therefore, capacitor overcome deficiency plants. However, effect bank installation on system’s is unknown. Therefore, research aims investigate whether installing a capacitor...

This paper presents a simple method for estimation of additional load as a factor of the existing load that may be drawn before reaching the point of line maximum loadability of radial distribution system (RDS) with different realistic load models at different substation voltages. The proposed method involves a simple line loadability index (LLI) that gives a measure of the proximity of the pre...

[Purpose] The aim of this study was to determine which is better in the rehabilitation of stroke patients, core stability exercises or conventional exercises. [Subjects and Methods] Forty participants with hemiplegia were recruited in the Department of Neurology of Yidu Central Hospital of Weifang between January 2014 and February 2015 and randomly divided into either an experimental or control...

In wide area measurement systems, PMUs are the main component measuring real time synchronized data from different buses. Installation of PMUs at all buses is a primary way to provide full observability of the power network. However, it is not practical in real networks due to the relatively expensive cost of PMUs and other technical limitations. Optimal PMU Placement (OPP) is an optimization p...

Buckling temperature prediction of a functionally graded piezoelectric (FGP) sandwich plate with lightweight core is studied in the present work. The composite made three layers. upper and lower layers are two different materials so that electrical mechanical properties smoothly varied through thickness based on power law distribution. Whereas, considered as hexagonal honeycomb structure or por...

In a de-regulated open access environment, reactive power is one of the ancillary services which must be provided by an Independent System Operator (ISO). In this paper, a new algorithm is proposed in which reactive power resources are initially so tuned that optimum security in terms of voltage profile and voltage stability are achieved while at the same time, the system losses are minimized. ...