in this paper, a new topology for boost z-source inverterbased on switched-inductor cell is proposed. the operating modes of the proposed inverter are analyzed and also a suitable control method to generate the trigger signals of the inverter is presented. having a common earth between the input source and inverter and capability to generate a higher voltage gain by using lower amounts of the d...

Article history: Received 7 May 2012 Received in revised form 10 August 2012 Accepted 6 September 2012 Available online 7 November 2012

Typically microgrid is composed of Distributed Generators (DGs), storage devices and loads which can be operated in grid-connected or islanding mode. Microgrid brings merits to both suppliers and consumers; hence, there would be a lot of microgrids at the distribution level with different load curves and DG types in near future interchanging their surplus/shortage of supply with each other or t...

This paper proposes a strategy for detecting unintentional islanding operations (IOs) in distribution networks (DNs) with distributed generation (DG), which eliminating the non-detection zone (NDZ). hybrid method achieves zero-NDZ by taking advantage of both passive and active methodologies an inverter-based DG scenario. The passive-based part proposed considers settings low thresholds is activ...

Appropriate renewable distributed generation (RDG) placement is one of the most significant issues for efficient operation current power systems. Since inverter-interfaced RDG lacks rotating mass to sustain system’s inertia, microgrids have low total system which impairs frequency stability and can yield voltage instability in severe disruptions. The virtual synchronous generator (VSG), uses co...

In this paper, an 18nm dopingless asymmetrical junctionless (AJ) double gate (DG) MOSFET has been designed for suppressed short channel effects (SCEs) low power applications. A desired ON and OFF state current ratio with subthreshold performance parameters under limit, is the major focus of proposed transistor. Different sensitivity AJ DG such as drain extension, length overlapping oxide thickn...

With increased penetration of renewable power and the nonlinear loads in distributed generation (DG) systems, quality concerns are exhibited active distribution networks, especially challenges associated with current voltage harmonics system. Various conventional harmonic compensation techniques developed for <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/...

The increasing demand of electric power is giving an emphasis on the need for the maximum utilization of renewable energy sources. On the other hand maintaining power quality to satisfaction of utility is an essential requirement. In this paper the design aspects of a Unified Power Quality Conditioner integrated with photovoltaic system in a distributed generation is presented. The proposed sys...

This article presents a novel asymmetrical 21-level multilevel inverter topology for solar PV application. The proposed achieves output voltage without H-bridge using asymmetric DC sources. reduces the devices, cost and size. standalone system needs constant magnitude from panels, maximum power point tracking (MPPT) technique used getting stable by perturb observe (P&O) algorithm. is boosted ov...

Racemates increase the chances of crystallization by allowing molecular contacts to be formed in a greater number of ways. With the advent of protein synthesis, the production of protein racemates and racemic-protein crystallography are now possible. Curiously, racemic DNA crystallography had not been investigated despite the commercial availability of L- and D-deoxyribo-oligonucleotides. Here,...