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Application Of Fuzzy Logic Technique For Power Loss Reduction In The Nigeria 330kv System
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1.3 Objectives Of The Study
The aim of the research is to reduce loss of electrical power in Nigeria’s 330KV system using Fuzzy logic technique.
The specific objectives of this research include;
i.
Using Newton-Raphson’s method to perform a load flow analysis on the
chosen 10-bus transmission model to determine line losses, bus voltages
and load angles.
ii. Applying Fuzzy Inference System to
determine the buses suitable for capacitor placement so as to reduce
active power losses on the chosen bus system and also improve voltage
profile, thus, improving on the stability and efficiency of the power
system.
1.4 Significance of the Study
Shunt capacitor
installations enhance an improved voltage profile, power factor, and
reduction in real power loss in the transmission system. Thus, this work
is significant because of the following
i. It would be a reference material for researchers.
ii. The work would also be useful to Transmission Company of Nigeria (TCN).
iii. It could also be a resource material for policy makers in power system, etc.
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1.5 Scope of the Study
The
scope of this work is limited to a 10-bus model transmission network.
The bus system (which cut across 2 of the 8 TCN regions), is carefully
chosen as a case study for this work. This is because of higher losses
and voltage drops experienced in the regions. Power flow analysis of
this sub-network is conducted to obtain losses. ‘Capacitor placement
method’ is applied using Fuzzy logic technique to determine the sizes
and locations of buses to install the capacitors. Sizes of capacitors to
be installed are equally evaluated.
1.6 Organization of Thesis
This
work is organized in five chapters. Chapter one presents a general
introduction of the work. Chapter two presents an overview of power
systems, power losses (both technical and non-technical), fuzzy logic
technique, power flow analysis etc. Chapter three deals with the
modeling of the selected 10-bus system, capacitor placement method,
algorithm of the proposed approach, calculation of loss reduction &
loss indices, calculation of capacitor sizes using Index Based method
etc. Chapter four present fuzzy logic as simulation software used.
Various results obtained from load flow analysis, fuzzy logic
implementation, calculation of capacitor sizes and improvement recorded
in voltage profile and reduction in total power losses were also
presented and discussed in this chapter. Conclusion is drawn and
necessary recommendation made in chapter five
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ABSRACT - [ Total Page(s): 1 ]To improve the overall efficiency of the power system, the performance
of transmission system must be improved. Some of the vital ways of
achieving this objective is by reducing power losses in the system and
also improving voltage profile. An important method of controlling bus
voltage is by shunt capacitor banks in the transmission substations. The
capacitor absorbs reactive power flow in the system, thus improving
power factor. When this is done, active power is also improved. In ... Continue reading---
