Despite attempts to increase the active power capability of vector-controlled voltage source converters (VSCs) connected very weak grids, interaction between control dynamics and physical system is not completely understood. The result often complex strategies that are difficult implement. This paper proposes an intuitive modification VSC based on considerations existing control. Several variab...

This paper proposes a new single phase transformerless Photovoltaic (PV) inverter for grid connected systems. It consists of six power switches, two diodes, one capacitor and filter at the output stage. The neutral of the grid is directly connected to the negative terminal of the source. This results in constant common mode voltage and zero leakage current. Model Predictive Controller (MPC) tec...

critical path method (cpm) is one of the most popular techniques used by construction practitioners for construction project scheduling since the 1950s. despite its popularity, cpm has a major shortcoming, as it is schedule based on two impractical acceptance that the project deadline is not bounded and that resources are unlimited. the analytical competency and computing capability of cpm thus...

this essay is to study the rhetoric and stylistic features of hafiz's rubaiyat. although this literary form has not a major contribution in divan of hafiz in comparison to his lyrics, but it deserves to get more attention, because this famous poet has blown part of his spirit and inner feelings into its existence. assuming the validity of this attribution, it has been tried to analyze hafi...