Browsing Conference/ Workshops /Seminar/ Proceedings by Author "Muriithi, Christopher M."
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MPPT of a standalone wind energy conversion system using magnetostrictive amorphous wire speed sensor and fuzzy logic
Ndirangu, J. G.; Nderu, J. N.; Muriithi, Christopher M.; Muhia, A. M. (2014)This paper details the design and implementation of a Fuzzy Logic based controller for Maximum Power Point Tracking (MPPT) of a case study standalone wind energy conversion system(WECS). A magnetostrictive amorphous wire ... -
New approach for design shunt active power filter for power quality improvement in a three phase three wire system
Bett, N.K.; Muriithi, Christopher M.; Hingarine, P. (2020)Use of power electronic-based load has increased in the resent decade. These loads draw non-sinusoidal currents and voltages from the utility supply generating harmful harmonics. Injection of harmonic currents and voltages ... -
Opportunities and challenges for smart grid communications
Kamau, Lincoln; Kibet, Philip; Muriithi, Christopher M. (2010)The current power grid is in the verge of being improved. Recent technological advances have made possible the creation of a new and improved grid known as the smart grid. Smart grid allows for better interaction between ... -
Optimal Battery Location for Minimizing the Total Cost of Generation in a Power System
Karanja, J. M.; Hinga, P. K.; Ngoo, L. M.; Muriithi, Christopher M. (2020)Wind is one of the major and fast growing source of green energy in the world. However, it’s naturally variable and this reduces its percentage penetration in a power system because of costs associated with balancing ... -
Optimal Placement of FACTS devices using voltage Stability Indices
Mutegi, A. M.; Kihato, Peter K.; Muriithi, Christopher M.; Saulo, M. J. (2016)Power System Voltage stability remains a major challenge for power utilities across the world. This research uses static load flow methods namely the voltage stability indices to come up with an optimal placement of FACTS ... -
Optimal Sizing and Placement of Solar Photovoltaic based DGs in the IEEE 9 bus system using Particle Swarm Optimization Algorithm
Orenge, R.; Muriithi, Christopher M.; Nyakoe, G. (2018)Solar energy is one of the most commonly exploited renewable resource globally. Integration of power from solar to the main grid can either bring positive or negative impact which normally depends on their size and location. ... -
Performance review of the VSC-HVDC based controllers
Muriuki, J. K.; Muriithi, Christopher M.; Ngoo, L. M.; Nyakoe, G.N. (2016)The Voltage Source Converters, High Voltage Direct Current (VSC-HVDC) system is the most preferred alternative technology for transmission and distribution of electrical power due to its intrinsic distinctiveness in ... -
Power factory load flow sensitivity analysis of an induction motor load model
Kinyua, J.M,; Muriithi, Christopher M.; Murage, D. K. (2010)Power factory Load flow sensitivity is a method used to obtain certain relationship between dependent and independent variables using differential relationship among physical measure in systems. Voltage sensitivity analysis ... -
Profit based unit commitment in deregulated electricity markets using a hybrid lagrangian relaxation - particle swarm optimization approach
Bikeri, Adline K.; Muriithi, Christopher M.; Kihato, Peter K. (2017)In deregulated electricity markets, individual generation companies (GENCOs) carry out independent unit commitment based on predicted energy and revenue prices. The GENCOs unit commitment strategies are developed with the ... -
Profit based unit commitment in deregulated electricity markets using a hybrid lagrangian Relaxation - particle swarm optimization approach
Bikeri, Adline K.; Muriithi, Christopher M.; Kihato, Peter K. (2017)Abstract—In deregulated electricity markets, individual generation companies (GENCOs) carry out independent unit commitment based on predicted energy and revenue prices. The GENCOs unit com-moment strategies are developed ... -
Profit based unit commitment using evolutionary particle swarm optimization
Bikeri, Adline K.; Kihato, Peter K.; Muriithi, Christopher M. (2015)The profit based unit commitment (PBUC) problem determines an optimal unit commitment schedule for a generation company (GENCO) participating in a deregulated environment with the aim of maximizing its profit. This is ... -
Protection of Terminal Distribution Transformers: A Case Study of Kenya Power
Muriuki, J.; Muriithi, Christopher M.; Ngoo, L.; Nyakoe, G. N. (IEEE, 2018)The paper presents and analyses the main causes of high failure rate of Terminal Distribution Transformers (TDTs) in Kenya. These transformers are the most susceptible to faults emanating from lightning strikes and associated ... -
A Review of Approaches to the Quantification of Operating Reserve requirements in Systems with Large Scale Wind Power Integration
Muriithi, Christopher M.; Wamukoya, Brian K.; Ngoko, Bonface (2018-05)The need to diversify power generation sources, increase security of supply, incorporate sustainability in energy sources and reducing fuel usage and emissions has significantly led to the integration of variable renewable ... -
A review of multi-objective methods for optimal location and capacity of distributed generations in modern power systems
Karanja, J. M.; Ngoo, L. M.; Muriithi, Christopher M. (2017)Penetration of distributed generation (DG) units in distribution system has increased rapidly stimulated by reduced network power loss, improved bus voltage profile and better power quality. Appropriate location and capacity ... -
Shore to ship power for Mombasa port possibilities and challenges
Karue, C. N.; Murage, D. K.; Muriithi, Christopher M. (2016)Control of air pollution from docked ships is one challenge that ports encounter in their effort to reduce operational environmental impact. Ship-to-shore power has been identified as one technology to reduce emissions by ... -
Short term voltage stability analysis of an aggregated industrial load
Obiri, L.K.; Kinyua, J. M.; Muriithi, Christopher M. (2010)Environmental constraints have limited expansion of transmission line networks. And with Power systems being operated close to their security limits, the likelihood of voltage collapses Occurring has increased [1]. In ... -
Single Axis Solar Tracking System
Mbura, C. M.; Muriithi, Christopher M.; Mwanza, S. K.; Nganga, B. K. (2021-11)This paper is about the design and development of a microcontroller based solar tracking system. Solar energy is rapidly becoming an alternative means of electrical source in Kenya and all over the world and the solar ... -
Suitability of aggregation methods of induction motor models for transient stability load modeling of Kenya power transmission and distribution system
Kinyua, J. M.; Muriithi, Christopher M. (2010)Current trend indicate that there has been increase on power outage frequency. This has partly been as a result of unstable power system with very small security margin of operation. Therefore, this paper focusses on the ... -
A Systematic Review On The Impact Of Educational Robots In Teaching Secondary School STEM Related Subjects
Mwangi, P. M.; Muriithi, Christopher M.; Agufana, Peace B. (2021-11)Robots are interdisciplinary in nature. Research in Educational robotics in the education sector has grown tremendously. The robots have been used as teaching tools in STEM subjects. However, even though research interest ... -
Under Voltage Load Shedding using Hybrid Metaheuristic Algorithms for Voltage Stability Enhancement: A Review
Kisengeu, S. M.; Nyakoe, G. N.; Muriithi, Christopher M. (2020)Power blackouts are experienced globally, more so with increasing load demand and ageing infrastructure. The high failure rate of conventional and adaptive load shedding techniques is prevalent during multiple contingencies. ...