Global Journal of Researches in Engineering: F Electrical and Electronics Engineering Volume 20 Issue 5 Version 1.0 Year 2020 Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Online ISSN: 2249-4596 & Print ISSN: 0975-5861 Improvement of Power Supply at Igbo-Etche Rumoukwurusi Area of Port Harcourt, Rivers State using Dynamic Voltage Restorer (DVR) Method By Igbinake Osakpamwan, Sepiribo Lucky Braide & Dikio Idoniboyeobu Rivers State University Abstract- This project work examined power supply at Igbo-Etche Rumoukwurusi Area of Port Harcourt with the aim of improving power supply. The 33KV feeder from Elelewno substation which supplies the area was analysed using Dynamic Voltage Restorer (DVR) method. The method was used in Electrical Transient Analyzer Programme (ETAP). It was observed that load flow analysis is vital in understanding the ape rational nature of the network, by considering the following; Capacitive power, power before compensation, power after compensation, current before and after compensation, voltage drop, reactive current, supply current after compensation, losses in the distribution system and the ratio of loss without and with compensation. From the simulation there was low voltage profile and overloading of transformer along the distribution network. The voltage profile was improved by upgrading the network to standard power factor. Keywords: power supply, loads, load evaluation, improved performance, igbo-etche rumoukwurusi, port harcourt. GJRE-F Classification: FOR Code: 090699 ImprovementofPowerSupplyatIgboEtcheRumoukwurusiAreaofPortHarcourtRiversStateusingDynamicVoltageRestorerDVRMethod Strictly as per the compliance and regulations of: © 2020. Igbinake Osakpamwan, Sepiribo Lucky Braide & Dikio Idoniboyeobu. This is a research/review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by- nc/3.0/), permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Improvement of Power Supply at Igbo-Etche Rumoukwurusi Area of Port Harcourt, Rivers State using Dynamic Voltage Restorer (DVR) Method Igbinake Osakpamwan α, Sepiribo Lucky Braide σ & Dikio Idoniboyeobu ρ Abstract- This project work examined power supply at Igbo- intermittent supply which in turns brings about rise in Etche Rumoukwurusi Area of Port Harcourt with the aim of cost of production (Ewald &Mohammad, 2008). 2020 improving power supply. The 33KV feeder from Elelewno Electrical Power Quality is the degree of any substation which supplies the area was analysed using Year deviation from the nominal values of the voltage Dynamic Voltage Restorer (DVR) method. The method was magnitude and frequency. Power Quality problems 19 used in Electrical Transient Analyzer Programme (ETAP). It was observed that load flow analysis is vital in understanding concerning frequency deviation and voltage magnitude the ape rational nature of the network, by considering the deviation is as a result of the presence of harmonics and following; Capacitive power, power before compensation, voltage fluctuations. Other voltage problems are the power after compensation, current before and after voltage sags, short interruptions and transient over compensation, voltage drop, reactive current, supply current voltages. The power quality issues such as voltage after compensation, losses in the distribution system and the ue V Version I sags, swells, harmonics, transients and their mitigation s ratio of loss without and with compensation. From the techniques that are suitable for different types of voltage simulation there was low voltage profile and overloading of sags, filter deign for reducing harmonic distortion and transformer along the distribution network. The voltage profile surge arrester sizing for location of transients was improved by upgrading the network to standard power factor. (Madrigal&Acha,2000). Keywords: power supply, loads, load evaluation, Any interruption of the power quality would cost improved performance, igbo-etche rumoukwurusi, port the efficiency of the system. In most of the cases, Volume XX Is control of the power quality refers to the control of the harcourt. F voltage only. This is because in most cases voltage can () I. Introduction be controlled more easily than current. More specifically, the quality of power can be described by some a) Background of the Study parameters such as continuity of service, variation in he problem of electricity supply in Nigeria by the voltage magnitude, transient voltages and currents, Nigerian power sector is as a result of its inability harmonic content (for AC) etc..To describe the to provide adequate electricity supply to domestic T importance of power quality issues, we can say that household and industrial producers despite a rapidly poor power quality leads to unnecessary wastage of growing economy, irrespective of the country’s large power and economy. It creates financial burden on the deposit of natural resources which can be harness and suppliers and consumers. Unstable voltage and Researches in Engineering utilize for power generation. This deficiency has adverse frequency often creates disturbance in the power flow effect on agricultural and industrial development which through transmission line (Pohjanheimo &Lakervi, 2000). in turns impedes Nigeria’s ongoing economic growth. of nal Power generation and distribution have b) Statement of the Problem our continue to be problematic in Nigeria for decades in The increasing emphasis on all power system spite of efforts by successive government to improve has resulted in continued growth in the application of supply and boost access to energy in Africa’s most devices such as high efficiency adjustable speed motor J Global populous country and ensure viability of investment in drives and shunt capacitors for power factor correction, the optimum benefits of electricity supply either for to reduce losses, resulting in increasing harmonic levels domestic usage or industrial production, as a result in power systems. The end users have an increased most households and businesses are left with no choice awareness of power quality issues which has led to the than to run fueled generators to supplement the following: 1. Voltage fluctuation due to over/under voltage Author α σ ρ: Department of Electrical Engineering, Power Option Rivers flickering of lightning causes load switching. State University, Port Harcourt. e-mails: [email protected], [email protected], [email protected] ©2020 Global Journals Improvement of Power Supply at Igbo-Etche Rumoukwurusi Area of Port Harcourt, Rivers State using Dynamic Voltage Restorer (DVR) Method 2. Voltage sag due overloading problems, intermittent 2. How they can be mitigated with the custom power lock-up causes faults in the system excessive device introduced. network loading and source voltage variation. 3. More details about the mitigation device would also 3. Voltage swell due to data loss, damage of be given, in terms of their composition and design; equipments causes start/start of heavy loads, inrush and also how they will be configured in an electrical current and inadequate wiring. system. 4. Long time voltage interruption due to malfunction in data processing equipment causes failure of II. Literature Review protection devices and insulation failures or control a) Power Quality Production malfunction. Power quality is anything that affects the c) Aim of the Study voltage, current and frequency of power being supplied The research is aimed at Improving the Power to the customers. Constant voltage is the prime Supply at Igbo-Etche Rumoukwurusi Area of Port requirement of the customer because if the voltage is Harcourt, Rivers State using Dynamic Voltage Restorer lower than the tolerable limits it will cause over heating 2020 (DVR) method. of the equipment and less illuminating power to the lighting load. If it is higher than the limit it cause material Year d) Objective of the Study insulation break down, reduces the life of lighting load 20 The objectives of this research work are: etc. Lightening (transient over voltages), switching over 1. To investigate the suitable mitigation techniques voltages (i.e capacitor switching, disconnection of lines), used to improved the power supply using Dynamic short circuit faults (such as voltage sags) and short interruptions are the main causes for voltage deviations ersion I Voltage Restorer (DVR) method by determining the following factors: which lead to permanent damage of the equipments. Power system frequency is related to the balance a. The capacitive power of the network. ue V between power generation and the load(Ray, 2001). s b. The % reduction in power loss of the network When this balance changes, small change in frequency c. The cable cross-section of the network occurs. The frequency variations that go beyond d. The compensation of the network acceptable limits for normal steady state operation of e. The losses in the distribution system of the power system are normally caused by fault on the network transmission lines, large portion of load being f. The reduction of voltage drop of the network Volume XX Is disconnected, or a large source of generation being g. The faults behind the transformer of the network isolated. Drop in frequency could result high F () 2. Prepare the single-line diagram using Electrical magnetizing currents in induction