The use of non-linear loads and the integration renewable energy in electricity network can cause power quality problems, especially harmonic distortion. It is a challenge operation design radial distribution system. This happen because harmonics that exceed limit interference to equipment systems. study will discuss determination optimal location capacity distributed generation (DG) reconfigur...

Reduced rotational inertia in power grids due to increasing penetration levels of distributed generations (DGs) may lead degraded performance the traditional frequency control scheme. In response this challenge, adequacy has recently emerged as a new research area modern systems. Accordingly, an attempt is made paper tackle generation expansion planning (GEP) problem. This turn helps realize su...

Microgrids are becoming increasingly attractive to consumers and as such in the future, a great number of them will be installed at consumer’s sites. In this situation, conventional distribution networks that accept distributed generation connections may face serious difficulty when its control and protection functions become more complicated. This incurs a burden to the network operation and s...

Distributed generations can be divided into traditional synchronous generators and inverter interfaced distributed (IIDG) according to their different operation mode. While the fault characteristics of IIDG is from Generators, in-depth analysis on output are foundation micro grid protection. The mathematical models under P/Q V/F control strategy discussed. After simplifying its model, studied u...

In Australia, as electricity prices have increased, driven mainly by increases in peak demand, electricity use has decreased every year since 2008/09. The factors most responsible for these decreases include increased electricity costs, energy efficiency, solar water heaters and photovoltaics. Further increases in electricity prices and uptake of these technologies could result in further reduc...

R ecent surveys in the U.S., Britain, Australia, and other OECD nations continue to report unacceptably high ,levels of adult illiteracy (Australian Bureau of Statistics, 1997a, 1997b). In the present context of unprecedented growth in symbolic sophistication associated with the current technological revolution (Castells 1996, 1997), claims of widespread adult illiteracy in "advanced" societies...

T he Next Generation Science Standards (NGSS), due to be released this spring, represents a revolutionary step toward establishing modern, national K–12 science education standards. Based on the recommendations of the National Research Council’s A Framework for K–12 Science Education: Practices, Crosscutting Concepts, and Core Ideas (NRC 2012), these performance expectations present a progressi...