Browsing Journal Articles (EN) by Title
Now showing items 47-60 of 60
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Reactive Power-Voltage-Based Voltage Instability Sensitivity Indices for Power Grid With Increasing Renewable Energy Penetration
(2020-05)In this work, a reactive power-voltage (QV)-based framework to evaluate the voltage instability sensitivities of power system buses to increase in renewable energy (RE) penetration has been developed using two sensitivity ... -
Review of HVDC Circuit Breakers Topologies
(2017-05)Voltage Source Converter-High Voltage Direct Current (VSC-HVDC) is the most efficient and reliable method for electrical power transmission over long distances. The greatest challenge with VSC-HVDC system is that short-circuit ... -
ROLE OF ROAD GEOMETRY ON ROOAD ACCIDENTS IN UASIN GISHU AND BUNGOMA COUNTIES IN KENYA
(2016)Road accidents in the Transport Industry are a threat to public health and national development in many developing countries. It contributes to poverty by deaths, injuries, disabilities, grief, lost of productivity and ... -
Social Media and Personal Branding of Gospel Musicians in Kenya
(2020-09)The paper investigated the influence of social media on personal branding of gospel Musicians in Kenya. The objectives of the study were to establish the forms of social media used for personal branding, to identify the ... -
Spatiotemporal Statistical Channel Model for Indoor Corridor at 14 GHz, 18 GHz, and 22 GHz Bands
(Wiley, 2018-12)Several techniques have been proposed to overcome challenges of meeting demands for higher data rates in wireless communication. Space-time diversity method is proposed to exploit spatiotemporal nature of the channel; ... -
Strengthening The Transient Stability Of A Power Grid Coupled With Wind Turbine Using Thyristor Controlled Series Capacitor
(2019-10)The increase diffusion and circulation of wind energy to the conventional power system due to rapid growth of energy demand has led to consideration of different wind turbine generator technologies. It has been discovered ... -
Suitability of aggregation methods of induction motor models for voltage stability analysis
(2012)This paper focusses on the aggregation of multiple induction motors (IM) connected in parallel on the same bus into a single equivalent model using aggregation based on transformer equivalent circuit (method 1) and on ... -
Transient stability analysis of the kenyan power system with different wind generation technologies.
(2014)Electrical power generation from wind is achieved using a number of generator technologies. The main technologies are the Squirrel Cage Induction Generators (SCIG) and Doubly Fed Induction Generators (DFIGs). In this paper, ... -
Under Voltage Load Shedding on a Modified IEEE 14-Bus System Using Hybrid ABC-PSO Algorithm for Voltage Stability Enhancement
(Elsevier, 2021-08)Voltage collapse tends to occur due to the voltage instability created during large faults. As a last resort, under-voltage load shedding (UVLS) is performed after all the available power operation and control mechanisms ... -
The use of RC4 Encryption to Provide Privacy for Smart Meters
(2018)The electrical power grid is undergoing improvements and is being transformed to the Smart Grid. Smart Grid uses two-way power and information flow to better monitor, plan and control the electrical power grid. Advanced ... -
Voltage profile improvement using switched capacitors: case of single wire earth return distribution network
(2017)Most rural areas in Africa are characterized by scattered villages with a very low demand in electricity. Due to improper planning and lack of knowledge on low cost technologies, the cost of extending the grid to supply ... -
Voltage stability assessment and enhancement of power grid with increasing wind energy penetration
(Elsevier, 2020-03)This paper presents the voltage stability assessment of power system with increasing wind energy penetration. The effects of increasing Doubly-Fed Induction Generator-based Wind Energy Conversion System (DFIG-WECS) penetration ... -
Voltage stability improvement on optimal placement of facts devices
(2016)Voltage stability challenge in power systems remains one of the major concerns in system planning and operation. The ability of a power system to maintain acceptable voltage levels at all buses in the system under normal ... -
Wider range of tuning the proposed VSC-HVDC system for improved controller performance
(2016)Tuning of the Voltage Source Converters, High Voltage Direct Current (VSC-HVDC) controllers is a critical undertaking continuously carried out in power system operation to ensure system stability is kept under control ...