Photovoltaic (PV) generation is potentially uncertain. Probabilistic PV forecasting methods have been proposed with prediction intervals (PIs) to evaluate the uncertainty quantitively. However, few studies applied PIs geographically distributed PVs in a specific area. In this study, two-step probabilistic forecast scheme for forecasting. Each step of adopts ensemble based on three different mac...

Distributed generation (DG) sources are becoming more prominent in distribution systems due to the incremental demands for electrical energy. Locations and capacities of DG sources have great impacts on the system losses in a distribution network. This paper presents a study aimed for optimally determining the size and location of distributed generation units in distribution systems with differ...

This paper presents a hexagonal shape defected ground structure (DGS) implemented on two element triangular patch microstrip antenna array. The radiation performance of the antenna is characterized by varying the geometry and dimension of the DGS and also by locating the DGS at specific position which were simulated. Simulation and measurement results have verified that the antenna with DGS had...

Preconditioned steer calves weighing 690 lbs were fed diets containing on a dry basis 0, 24.9 and 47.0 percent modified wet distillers grains (DGS) for 186 days. Wet DGS replaced a portion of corn and supplement in a diet containing dry rolled corn, corn silage, tub-ground corn stalks and supplement. Steers were implanted initially with Component E-S and terminally with Component TE-S. Daily ga...

Distributed dynamic event-triggered control (ETC) method is proposed to solve the stochastic and intermittent problem caused by distributed renewable energy generation unit (DG) in microgrid (MG). It aims at reducing communication cost while achieving proportional current sharing among DGs. Firstly, state space function model of MG system established, considering unknown disturbance DGs uncerta...

Distributed generation (DG) sources are becoming more prominent in distribution systems due to the incremental demands for electrical energy. Locations and capacities of DG sources have great impacts on the system losses in a distribution network. This paper presents a study aimed for optimally determining the size and location of distributed generation units in distribution systems with differ...

One critical value microgrids bring to power systems is resilience, the capability of being able to island from the main grid under certain conditions and connect back when necessary. Once islanded, a microgrid must be synchronized to the main grid before reconnection to prevent severe consequences. In general, synchronization of a single machine with the grid can be easily achieved using a syn...

The power requirements of grids have risen as artificial intelligence and electric vehicle technologies been used. Thus, the installation distributed generators (DGs) has become an essential factor to streamline grids. objective this study is optimize capacity location DGs. For purpose, function was defined, which takes into account fault current levelized cost energy, a modified particle swarm...

The problem of insufficient regulation ability in isolated microgrid operations traditional master–slave control is targeted this research. A hybrid strategy proposed to operate multiple distributed generators (DGs) a with alleviated characteristics. Firstly, virtual synchronous generator adopted the master DG provide voltage and frequency support for system; however, lack participation slave P...