Electric power

devices, etc. The harmonics distortion caused by non-linear load such as electric arc furnaces, large concentrations of arc discharge lamps, variable speed motors, saturation of magnetization of transformer and a distorted line current. The current generated by such loads will interact with power system impedance and increases harmonics. Harmonics can lead to degradation of power quality at the consumer’s end, increase of power losses, and malfunction in communication system. The harmonics…

Getting electricity Data from Doing Business A firm has to go through 7 procedures in order to obtain an electricity supply and connection. These include applications and contracts with electricity utilities, clearances from other agencies and the external and final connection works. The whole process from submitting the application to installing the final connection takes 137 calendar days and costs a substantial 126.1% of income per capita. The reliability of supply and transparency of tariffs…

Fig. 3. Schematic Diagram of Power Line Guardians (“PLG”) PLGs are also used to give the real-time data on the lines such as: line current, conductor temperature, frequency, sag [17]-[21]. Fig. 4. The PLG communications system. The diagram (Fig.4) shows the PLG communications system. PLGs (blue) control the power flows on the lines. Super PLGs (red) can control both the power flows and the PLGs. These Super PLGs are also used to communicate with Energy Management Systems (EMS) and allow…

II. DERIVATION OF THE CONVERTER STRUCTURE The new generated topology is called Full-Bridge Hybrid Switched Capacitor (FBHSC) Inverter. A Half-Bridge version was previously presented [30]. The new topology was generated initially by differential connection [31]–[33] between two HSC dc-dc converter [16] (cf. Fig. 2a), which was generated as a bidirectional version of the HSC boost dc-dc converter [34], [35]. The unidirectional dc-dc version can be seen as an integration between a conventional…

Demand Side Management in Microgrids For some time now, there has been growing concern about the continuous consumption of fossil fuels, coupled with issues of environmental depletion and low energy efficiency for electricity power generation and use. This has increased the use of alternative energy resources (wind, biomass, solar and hydro systems) in forms of distributed energy resources (DERs) or distributed generators (DGs) [1]. However, these distributed generators come with safe and…

CHAPTER FIVE 5. CONCLUSIONS AND RECOMMENDATIONS 5.1. Conclusions The subsequent conclusions and recommendations are made on the existing electric consumption of Lelta MHP, productive use of Electric power and Stakeholder and community integration to sustain the plant. The electric consumption and future demand of MHP during this study are analysis carried out using GDP and HH and population growth rate. The summary of main findings, based on the analysis undertaken in the preceding Chapters 4,…

this sparks my motivations to be an effective and contributing electrical power engineer in this paradigm shift. This rapid increase of renewable sources integration necessarily leads to new power grids. In brief, my research concerns fundamental engineering and economic challenges facing our rapidly evolving electricity smart grid. The electricity industry is experiencing vast changes. Generation and utilization of power energy in the future will be not the same as today. More alternative…

adequate motion to drive the generator with output quality as in demand. As waves vary in height and period, their respective power levels vary accordingly. • The challenge of efficiently capturing this irregular motion also has an impact on the design of the device. To operate efficiently, the device and corresponding systems have to be rated for the most common wave power levels. • The device also has to withstand extreme wave conditions that occur very rarely. Not only…

Modern power systems are made up of several interacting national systems. These systems interact providing essential support and monitoring in various power grids or sectors. While the advantages of systems interacting are bountiful in information gathering and sharing, it is not without certain drawbacks. Our society is dependent upon the availability of power and is quickly incapacitated by its loss. Simply observe the moderate disruption that is caused during severe weather. Often, these…

4.1.4 Development of Feed Forward Control model in Simulink To implement feed forward control. Firstly, the transfer function of the linear DC Motor model has to be obtained. Actually in our case, the input of the plant is current so the transfer function of the mathematical model in ratio of angular velocity to current has to be obtained. It is given by: G(s)=Ω_1/I_a =R_A/K_M 1/(T_e s+1) where T_e=(J_meq R_A)/(K_m Cϕ) is electro-mechanical time constant. The feed forward control could be…