1. Electrical Power Theory 1.1 Electrical Energy 1.2 Direct and Alternating Current 1.3 Three-Phase Systems 1.4 Star and Delta Connections 1.5 Phasor Representation 2. Electrical Generators 2.1 General Theory 3. Electrical Transformers 3.1 General Theory 3.2 Transformer Connections 4. Electrical Generator Configuration 4.1 Generator Rotor 4.2 Generator Stator 4.3 Excitation System 4.4 Generator...

In this paper, an understanding of reactive power associated with power transmission networks is developed. To make transmission networks operate within desired voltage limits, methods of making up or taking away reactive power— hereafter called reactive-power control—are discussed. Before proceeding further, however, a thorough understanding of the reactive power in ac systems is necessary. Th...

In modern electrical power systems, electricity is produced at generating stations, transmitted through a high voltage network, and finally distributed to consumers. Due to the rapid increase in power demand, electric power systems have developed extensively during the 20th century, resulting in today’s power industry probably being the largest and most complex industry in the world. Electricit...

Research in space technology and small satellite development is getting more prosperous in recent year. The 2U CubeSat PHOENIX is developed at NCKU as a part of the QB50 mission, which will be launched in 2017. PHOENIX consists of several subsystems and one of the most critical one is the Electrical Power Subsystem (EPS), which provides, stores, distribute and controls the satellite’s electrica...

Designing clock distribution networks is a big challenge for future microprocessors due to increasing frequency, power, transistor counts and process variations. As technology scales, implementing conventional clock distribution networks that meet low power and skew requirements is becoming more difficult. On the other hand, optical interconnects are being proposed as an alternative to electric...

This paper narrates an application of Particle Swarm Optimization (PSO) for economic load dispatch. The main objective function is to optimize the Fuel cost and Active power loss by considering the power flows within the allowable limits. The PSO is simple in concept and easy in implementation. It does not require any derivative information, sure and fast convergence. Moreover, the problem can ...

Enzymatic fuel cells produce electrical power by oxidation of renewable energy sources. An enzymatic glucose biofuel cell uses glucose as fuel and enzymes as biocatalyst, to convert biochemical energy into electrical energy. The applications which need low electrical voltages and low currents have much of the interest in developing enzymatic fuel cells. An analytical modelling of an enzymatic f...

As one of the most promising Distributed Generation (DG) sources, wind power technology has been widely developed in recent years. Doubly fed induction generator (DFIG) is currently employed as one of the most common topologies for wind turbine generators (WTGs). This generator operates as a synchronous/asynchronous hybrid generators. Therefore, it is necessary to power engineers find understan...

abstract: In the present work, determining the optimal strategy(profit based) of multi virtual power plants (VPPs) as well as the objective of maximizing profit through the multi-level control of VPPs are discussed by the micro-grid utilization center including virtual power plants. VPPs include renewable resources such as wind farms, photovoltaic, and conventional resources such as fuel cell, ...