flexible ac transmission systems (facts) controllers with its ability to directly control the power flow can offer great opportunities in modern power system, allowing better and safer operation of transmission network. in this paper, in order to find type, size and location of facts devices in a power system a dedicated improved particle swarm optimization (dipso) algorithm is developed for de...

One of the key aspects of power quality improvement in power system is the mitigation of voltage sags/swells and flicker. Custom power devices have been known as the best tools for voltage disturbances mitigation as well as reactive power compensation. Dynamic Voltage Restorer (DVR) which is the most efficient and effective modern custom power device can provide the most commercial solution to ...

Monitoring on smartphones and mobile devices presents several challenges, such as limited battery power and computing resources, but also provides some unique opportunities, particularly the ability to capture contextual data. Incorporating the context of the activities being monitored could improve performance modeling. Real-time monitoring could also be used to facilitate contextaware applica...

This paper presents on power quality improvement in distributed radial network by using custom device (CPD). In system, the issue become more complex at all level. Here, for this concern, we introduce a concept of power, basically it is electronics controller, to provide supplier as much consumers. Custom (CPD) including active line conditioner (APLC) and static synchronous compensators (STATCO...

This paper describes the ongoing development of a radiation-tolerant version of ITT Industries’ Low-Power Transceiver (LPT). The LPT is a compact, flexible device that can be configured to perform custom communications and navigation functions in terrestrial, airborne, and space applications. The radiation-tolerant version of the LPT maintains most of the LPT’s existing functionality and reprog...

In the last years, the wind power generation incorporated into standard grids has been increased significantly. This situation forced the revision of grid connection code requirements, to guarantee the reliability in systems with high wind power penetration. These strategies were implemented using a Unified Power Quality Compensator (UPQC). A model of wind farm with induction generators connect...

This paper presents a multi-objective control strategy for power quality issues. With increasing applications of nonlinear and semi-conductor devices in distribution systems and industries, power-quality (PQ) problems, such as harmonics, neutral current elimination, voltage sag, voltage swell reactive power has become an unavoidable issue. Due to the changing trends and restructuring of power s...

Custom Power devices like Dynamic voltage restorer and STATCOM are normally employed as a solution for mitigation of power quality problems like voltage sag and swell. In this paper new voltage sag compensators based on an autotransformer and an IGBT switched by PWM technique and Hysteresis Voltage Control (HVC) method are compared. These two schemes are able to recognize the voltage sag condit...

In power systems, custom power devices are used in series to avoid the voltage drop. Dynamic voltage restorer (DVR) is one of these tools. The various control techniques are available for the operating DVR. This paper is to use the dq0 technique to control DVR Series as a compensator for protection at fault furthermore, dents and bump's voltage sensitive loads to the system. The proposed contro...

Received Jan 12, 2015 Revised Mar 28, 2015 Accepted Apr 22, 2015 Recently Low power custom memory design is the major issue for embedded designer. Micro wind and Xilinx simulator performs efficient cache simulation and high performances with low power consumption. SRAM efficiency analyzed with 6-T architecture design and analyzed the simulation performance for specific application. We have impl...