1. Abstract In this design, the dual band dipole antenna feed network with wide bandwidth tapered microstrip balun is studied. The design and experimental results of low profile embedded microstrip dipole antenna with tapered microstrip balun shows fairly good performances. The feed network of the design with wider bandwidth and lower power loss tapered microstrip line to overlap coplanar strip...

The paper introduces the modified UPQC topology with reduced switching losses. UPQC is a versatile custom power device which consists of two inverters connected back to back and deals with both load current and supply voltage imperfections. It can simultaneously perform as shunt and series active power filters. The series part of the UPQC acts as Dynamic Voltage Restorer (DVR). It is used to ma...

The modern power of China is based on its traditional sources: the size territory and demographics, scale economy, strong army soft (culture, values, foreign policy, public diplomacy). China, by building hegemony, showed that only a state with significant resources able to be leader in world. basic condition balanced development individual resources, because then can long-term hegemony world ac...

In this paper control of Goertzel Algorithm based shunt active power filter with sliding mode controller is considered. Shunt active power filter involves harmonics mitigation due to three phase non linear loads under balanced and unbalanced load conditions. The sliding mode controller is used to regulate voltage of the capacitor used in inverter. The sliding mode controller improves the dynami...

Evaluation of the reliability parameters in micro-grids based on renewable energy sources is one of the main problems that are investigated in this paper. Renewable energy sources such as solar and wind energy, battery as an energy storage system and fuel cell as a backup system are used to provide power to the electrical loads of the micro-grid. Loads in the micro-grid consist of interruptible...

the renewable energy sources and plug-in electric vehicles (pevs) are becoming very popular because of the combination of high fuel costs and concerns about emission issues. this paper presents modelling and control of a building integrated fuel cell and plug-in electric vehicles (bifc-pev) in smart distribution systems. in bifc-pev system, conventional building elements could be replaced by sp...

people usually associate power with military force, multinational corporations, as well as ele-vated political positions. however, marriage and family are not exempted from power strug-gles too; couples often encounter power issues. present article discusses power in families with focussing on power between married partners or conjugal power.the paper also high-lights some of the questions like...

This paper introduces the Virtual Test Bed (VTB) for modeling, dynam and virtual-prototyping of power sources in the system context. Typical ele power sources such as battery, fuel cell and supercapacitor are first mod environmen and the capability of advanced visualizations of simulation results, make quite powerful. el cell, resistive-c INTRODUCTION The Virtual Test Bed (VTB) [1] provides a u...

Distorted voltage and current waveforms is one of the problems associated to electric power quality. Continuous use of non-linear loads provokes the existence of voltage waveforms with a high distortion. Thus, it is necessary to know the responsible of this problem by means of the commonly named distortion sources identification. In this paper, the problem is analyzed through the harmonic power...