APPLICATION OF AN OPTIMAL TUNING TECHNIQUE OF ON-LOAD TAPCHANGING TRANSFORMER FOR POWER QUALITY IMPROVEMENT IN TRANSMISSION LINE NETWORK
- Project Research
- 1-5 Chapters
- Abstract : Available
- Table of Content: Available
- Reference Style: APA
- Recommended for : Student Researchers
- NGN 3000
ABSTRACT
For reliable and efficient operation of power system, voltage level and reactive power flow along transmission lines has to be adequately regulated. To control reactive power flow over transmission lines and compensate for varying voltage drops, tap changing transformers are required. By altering the voltage magnitudes at the windings of the transformers through winding tap adjustment, reactive power flow can be controlled. The transformers can be off-loaded or on-line tap changer. In the latter, the transformers are disconnected from the system when the tap setting is to be adjusted, while in the former, the tap adjustment is carried out with the transformers connected. In this research work, Grey Wolf Optimization (GWO) algorithm is applied to determine the optimal On-Line Tap Changer (OLTC) of the available transformers in the system in order to improve the voltage profile and regulate reactive power. The constraints considered in the formulation of the problem are demand-generation balance, bus voltage limits, line thermal overloading limits and tap-changer adjustment limits according to IEEE C57.131 2012 requirement. To verify the effectiveness of the developed technique, it is implemented on IEEE 14-bus, IEEE 30-bus and 57-bus Nigerian Transmission systems. The performances of the proposed technique is compared with those obtained using Particle Swarm Optimization (PSO). From the simulation carried out in MATLAB environment, it is observed there is significant reductions in the overall voltage deviation (VD) as well as the reactive power loss (RPL) when the OLTCs are optimized. For instance, in the IEEE 14-bus system, the VD was reduced from 2.0892pu (base case) to 1.0153pu due to the optimal tuning of the OLCTs using GWO and 1.4783pu when PSO was applied. This represents 51.40% improvement in the case of the developed GWO over that of the base case and 31.32% improvement over the case of the PSO. Similarly, the RPL was reduced from 277.298MVar of the base case value to 156.542MVar due to the optimal tuning of the OLCTs using GWO and 206.591MVar when PSO was applied representing 43.54% and 25.49% improvements respectively. These have demonstrated the applicability of the GWO and its superiority over PSO in optimizing the OLTCs in the IEEE 14-bus and 30-bus systems. In the Nigerian 57-bus system, by applying the GWO, the total VD was reduced from 6.7808pu (base case) to 4.4519pu representing 34.35% improvement. Finally, the value of RPL was reduced by 36.56% from its original value of 185.4685Mvar.
Related Project Materials
Recklessness of commercial drivers
Background to the Study
Driving a car, bus, lorry or an articulated-vehicle is a psychomotor activity that requires a co...
WOMEN RELIGIOUS AND PASTORAL DEVELOPMENTS IN ONITSHA ARCHDIOCESE 1967-2015: A STUDY OF IMMACULATE HEART SISTERS
Abstract
This study is on Women Religious and Pastoral Development in Onitsha Archdiocese 1967-2015: A study of Immaculate Heart Sisters....
EFFECTS OF JIGSAW IV COOPERATIVE LEARNING STRATEGY ON STUDENTS’ PERCEPTION, RETENTION AND PERFORMANCE IN ORGANIC CHEMISTRY
Introduction
The relevance of science to national goals, aspirations and economy dictates to a large extent, the huge co...
REGRESSION ANALYSIS ON NATIONAL INCOME (1999-2015)
BACKGROUND OF THE STUDY
National income is the sum of the money value of all the commodities and servic...
ENVIRONMENTAL IMPACTS OF FLOODING ON AGRICULTURAL ACTIVITIES AND ITS ENVIRONS
ABSTRACT
Flood is not only a local environmental problem but also a challenge that is faced globally. It is a phenomenon...
INFORMATION COMMUNICATION TECHNOLOGY AND ITS IMPACT ON NIGERIA’S PUBLIC ACADEMIC LIBRARIES (A CASE STUDY OF THE UNIVERSITY UYO)
Background To The Study
With the invention of Information and Communication Technology, libraries now u...
A COMPARATIVE STUDY OF SECONDARY SCHOOL STUDENTS ACADEMIC PERFORMANCE IN FOOD AND NUTRITION IN WAEC AND NECO
ABSTRACT
This paper compares and examines the performance of secondary school students who were candidates in food and n...
IMPACT OF POWER OUTAGE ON SMALL AND MEDIUM ENTERPRISES IN NIGERIA
Abstract
Power Outage has been identified as the key constraint to manufacturing sector development in Nigeria. Hence, t...
DESIGN AND IMPLEMENTATION OF NETWORK INTRUSION DETECTION SYSTEM (NIDS)
ABSTRACT
The objective of this project is to develop a network intrusion detection system that incorporates a decoy syst...
AN ASSESSMENT OF ACCOUNTING INFORMATION AND ITS ROLE IN THE MANAGEMENT OF ORGANISATION
BACKGROUND OF THE STUDY
In order to make economic decisions, all corporate organizations require infor...
