System reductions or network equivalents are frequently used to reduce the scale of simulated power systems in electromagnetic transient simulation tools, and even more so in real-time software. However, complex hardware-in-the-loop studies involving multiple devices under test or focusing on widearea phenomena such as geomagnetically-induced currents or wide-spread ferroresonance require full ...

Background Many of public hospitals in Japan have had a deficit for a long time. Japanese local governments have been encouraging public hospitals to use group purchasing of drugs to benefit from the economies of scale, and increase their bargaining power for obtaining discounts in drug purchasing, thus improving their financial situation. In this study, we empirically investigate whether or no...

in this paper, optimum location of power system stabilizers in order to damp inter-area oscillations has been investigated by using modal series method. nonlinear effects grow in dynamical behaviors of heavily loaded stressed power systems significantly. hence linear based methods and techniques no longer present clear and exact response of the systems. in this article by defining new nonlinear...

The increase in penetration of large-scale renewable generation significantly affects power system characteristics. Thus, it is necessary to assess the steady state and dynamic performance a for different installing scenarios plants such as photovoltaic (PV) ones. paper specifically investigates impacts very (VLS-PV) on including rotor-angle frequency stabilities. For this purpose, detailed equ...

We present the development of a dynamic software simulation environment for modelling small and large scale photovoltaic (PV) energy generation systems. The model elements of solar panels, Maximum Power Point Trackers (MPPT) and solar inverters were integrated to a simulator system providing weather and power grid models as well as simulation of combustion power plants. The integrated system en...