This paper describes a DC isolated network which is fed with Distributed Generation (DG) from photovoltaic (PV) renewable sources for supplying unbalanced AC loads. The battery energy storage bank has been connected to the DC network via DC/DC converter to control the voltage of the network and optimize the operation of the PV generation units. The PV arrays are connected to the DC network ...

This paper presents the operation of doubly fed induction generator (DFIG) with Fuzzy Logic Control & an integrated active filter capabilities using grid-side converter (GSC). The main contribution of this work lies in the control of GSC using Fuzzy Logic Control (FLC) for supplying harmonics in addition to its slip power transfer. The rotor-side converter (RSC) is used for attaining maximum po...

1. Uptake of l-glutamate by Halobacterium salinarium is dependent on high concentrations of sodium chloride in the environment. When the sodium chloride is replaced by isomolar concentrations of potassium chloride, sodium acetate or potassium acetate, only negligible uptake occurs. 2. Most of the glutamate taken up can be shown to be in the cells in the free state and at a concentration of at l...

The black land is distributed in a narrow area from south to north in northeast of China Nine soil samples with high, middle and low fertility were collected in the field of south, north and middle area. These samples were analyzed in laboratory, and pot experiment was performed mainly in Harbin. The results showed that Black soil has high potential of providing potassium, the concentration of ...