scholarly journals Unlocking the Hidden Dimension of the World’s Transmission and Distribution Power Losses through Fractal Statistical Inference

2021 ◽  
Vol 8 (12) ◽  
pp. 634-637
Author(s):  
Jhovie Chleo Tan ◽  
Audrey Mae L. Escal ◽  
Jessa Marie E. Francisco
Keyword(s):  
Fractal Dimension ◽  
Power Loss ◽  
Power Transmission ◽  
The Other ◽  
Transmission Power ◽  
State Control ◽  
Power Losses ◽  
Economic Stability ◽  
Global View ◽  
Transmission And Distribution

Various studies on the transmission and distribution power losses had been conducted but a global view of the transmission and distribution power loss rates had not been explored yet. This paper explained the fractal dimension of the global distribution and transmission power losses using fractal statistical analysis. Findings revealed that the computed fractal dimension of 1.08 means that power losses of countries across the globe deviated from uniformity by about 8 percent. The upper and bottom eight (8) percent of the dataset were analyzed and findings revealed that the ruggedness of the phenomenon was attributable to political and economic dimensions. The extreme high distribution and transmission power losses may be traced back to chaos, pilferage, and substandard materials. On the other hand, the economic stability and state control capacity contributed much to the extreme low distribution and transmission power losses. Keywords: fractal analysis, power loss, power transmission and distribution, xfractal.

Effect of Real Power Loss Allocation on the Transfer Bus with Zero Injection Power

2016 ◽  
Vol 2 (09) ◽  
Author(s):  
Ganiyu Adedayo Ajenikoko ◽  
Olayinka Titilola T
Keyword(s):  
Electricity Market ◽  
Power Loss ◽  
Power Flow ◽  
Power Transmission ◽  
Electrical Power ◽  
The Other ◽  
Allocation Model ◽  
Real Power ◽  
Loss Allocation ◽  
Injection Power

Loss allocation in electrical power transmission system has a significant role to play in the restructuring of electricity market since generator and demands are connected to the same network. There is the need for an efficient loss allocation scheme that could fit all market structures in different locations. This paper presents the effect of real power loss allocation on the transfer bus with zero injection power. Three approaches- the postage stamp method (PS), proportional sharing principle (PSP) or flow tracing method and the Bus-wise loss allocation (BWLA) method were compared using appropriate mathematical notations for the development of a Hybridized real power loss allocation model. The average values of the losses with the three methods –PS, PSP and BWLA were computed to obtain the hybridized real power loss allocation model. The effect of real power loss allocation on the transfer bus with zero injection power is then established. The results of the work show that in PSB method, a loss of 3.0751MW was allocated to bus 1 as it contributes 142.608MW to other loads with the allocation of 1.8523MW to bus 2 with the contribution of 55MW to the other loads. In BWLA method a loss of 3.1412MW was allocated to bus 1 with its contribution of power flow to the other loads as 146.908MW while allocating a loss of 1.2381MW to bus 2 with its contribution of power flow to other loads as 58MW. In the PS method, the participants with more contributions get more benefits compared to participants with lesser contributions. Though, network is taken into consideration in PSB, customers have no reasonable benefits as compared to the BWLA method compared to the other two approaches. The total real power loss of 25.18MW for the 30 bus system was obtained by using PS. PSP and BWLA method. All the three methods, PS, PSB and BWLA allot zero loss to the transfer bus which has zero injection power. In PSB method, negative losses ( counter-flows) occur when number of buses increases and in BWLA  method, negative losses (counter flows) never occur even though there is an increase in the number of buses.

scholarly journals An Experimental Investigation of Power Losses in Manual Transmission Gear Box

2012 ◽  
pp. 1-5
Author(s):  
Prakash D Pate ◽  
J.M. Patel
Keyword(s):  
Power Loss ◽  
Transmission Efficiency ◽  
Front Wheel ◽  
Operating Conditions ◽  
Manual Transmission ◽  
Experimental Methodology ◽  
Transmission Power ◽  
Power Losses ◽  
Oil Viscosity ◽  
Experimental Database

In this study, the influence of a variety of operating conditions on the power losses and efficiency of an automotive manual transmission was investigated experimentally. An experimental methodology was developed to measure power losses of a manual transmission under both loaded and unloaded conditions while all operation parameters were controlled tightly. A set of fixtures and instrumentation were designed and implemented to apply the experimental methodology to a five-speed, manual transmission from a front-wheel-drive passenger vehicle. Experimental parametric studies were performed to quantify the influence of operating conditions including load, oil viscosity and oil volume on load-dependent (mechanical) and load-independent (spin) power losses of the transmission. Analysis of the power loss data revealed that all three of these parameters influenced the components of the transmission power loss significantly, and specific conclusions were drawn in order to aid attempts to increase overall transmission efficiency. The experimental database formed as a result of this study is extensive so as to allow a complete validation of transmission power loss models.

scholarly journals Susut Tegangan pada Penghantar ACCC di Saluran Transmisi 150 kV di PT. PLN (Persero) Unit Pelayanan Transmisi Pekanbaru

SainETIn ◽  
2020 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Wellington Octary ◽  
Hamzah Eteruddin ◽  
Abrar Tanjung
Keyword(s):  
Transmission Lines ◽  
Power Distribution ◽  
Power Loss ◽  
Power Plants ◽  
Power Transmission ◽  
Voltage Drop ◽  
Transmission Network ◽  
Power Transmission Lines ◽  
Power Losses ◽  
Line Diagram

Power transmission network system plays an important role in distributing power, especially in 150 kV power transmission lines. In 2013, the was a change in term of conductor type in in 150 kV transmission lines of Garuda Sakti – Balai Pungut, from ACSR to ACCC, because of the growing number of power plants in Riau and power distribution in every conductor supplying higher current, when given higher current, ACCC conductor is capable of transmitting power twice the ACSR conductor. The single line diagram of UPT Pekanbaru, data from power station (GI) Garuda Sakti – Balai Pungut, conductor data and load data are all data necessary for the study and calculation on ACCC conductor. The result shows that the amount of voltage drop power losses of ACCC conductor is 5.098 kV, while the power loss is 479,187 with the sagging value is 6.950 m, compared to the old conductor, the ACSR type, with the voltage drop of 7.517 kV, power loss of 828.863 kW, and the sagging value of 9.010 m, all measured in 150 kV power transmission lines of PT. PLN PERSERO UPT Pekanbaru.

scholarly journals Optimal Allocation of UPFC to Minimize Real Power Losses using NSPSO Algorithm

2019 ◽  
Vol 8 (12) ◽  
pp. 924-931
Keyword(s):  
Power Loss ◽  
Optimal Allocation ◽  
Transmission System ◽  
Optimal Location ◽  
The Other ◽  
System Stability ◽  
Power Losses ◽  
Real Power ◽  
Optimal Technique ◽  
Bus System

This paper presents the optimal location of UPFC in Transmission system by implementing a new methodology called NSPSO. With this we can achieve two objectives one is reduction of Real Power loss (RPL) and the other one is improving the bus voltages. In order to identify the optimal location of the UPFC, L-Index strategy is utilized. Moreover the effectiveness of the method is tested on the IEEE 14 bus & IEEE 30 bus system by considering 125%, 150%, 175% and 200% overloading cases. Finally, we can prove that the NSPSO algorithm is the optimal technique for finding the rating and location of UPFC and also improving the system stability.

scholarly journals RATIO OF COMMERCIAL ELECTRICITY LOSSES IN POWER NETWORKS BEFORE AND AFTER INSTALLATION OF INTELLIGENT METERING DEVICES

2021 ◽  
pp. 86-98
Author(s):  
Georgi M. Mikheev ◽  
Ayrat G. Ziganshin ◽  
Dmitriy A. Mironov
Keyword(s):  
Electric Power ◽  
The Other ◽  
Power Losses ◽  
Power Networks ◽  
Electric Networks ◽  
Before And After ◽  
The Difference ◽  
The Republic ◽  
Power Metering ◽  
Transmission And Distribution

Relative losses of electric power during transmission and distribution in electric networks are considered in the paper. The components of commercial losses of electric power and their structure are given. From the presented data of technical and commercial losses of some areas of power networks of «ПАО «MRSK of Volga» – «Chuvashenergo» following the results of one month 2020, calculated with the use of «RAP-Standard» program according to the statements of power sales, it follows that total losses are from 11,6 to 17%. By the example of two sections of power grid companies of PAO MRSK of Volga – Chuvashenergo and the Republic of Tatarstan a comparison of commercial losses before and after the installation of intelligent power metering devices was made. It is estimated that the difference in electric power losses after installation of «smart» electric meters at both sites of the above mentioned enterprises was significantly reduced: at one site from 14 to 5.1%, and at the other – from 17.3 to 9.4%. It is shown that specific losses after installation of intellectual metering devices in Verkhneuslonsky district settlement of JSC «Grid Company» Buinskie Power Networks per one metering device decreased by 19.7%.

scholarly journals The Power Losses in Cable Lines Supplying Nonlinear Loads

Energies ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1374
Author(s):  
Bartosz Rozegnał ◽  
Paweł Albrechtowicz ◽  
Dominik Mamcarz ◽  
Monika Rerak ◽  
Maciej Skaza
Keyword(s):  
Bessel Function ◽  
Cross Section ◽  
Power Loss ◽  
Sine Wave ◽  
Active Power ◽  
New Method ◽  
Power Losses ◽  
Nonlinear Loads ◽  
Current Harmonics ◽  
Cable Lines

This paper presents the skin effect impact on the active power losses in the sheathless single-core cables/wires supplying nonlinear loads. There are significant conductor losses when the current has a distorted waveform (e.g., the current supplying diode rectifiers). The authors present a new method for active power loss calculation. The obtained results have been compared to the IEC-60287-1-1:2006 + A1:2014 standard method and the method based on the Bessel function. For all methods, the active power loss results were convergent for small-cable cross-section areas. The proposed method gives smaller power loss values for these cable sizes than the IEC and Bessel function methods. For cable cross-section areas greater than 185 mm2, the obtained results were better than those for the other methods. There were also analyses of extra power losses for distorted currents compared to an ideal 50 Hz sine wave for all methods. The new method is based on the current penetration depth factor calculated for every considered current harmonics, which allows us to calculate the precise equivalent resistance for any cable size. This research is part of our work on a cable thermal analysis method that has been developed.

scholarly journals An Improved Particle Swarm Optimization Algorithm Using Eagle Strategy for Power Loss Minimization

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Hamza Yapıcı ◽  
Nurettin Çetinkaya
Keyword(s):  
Genetic Algorithm ◽  
Particle Swarm Optimization ◽  
Power System ◽  
Power Loss ◽  
Particle Swarm Optimization Algorithm ◽  
Reactive Power ◽  
Particle Swarm ◽  
Power Losses ◽  
Swarm Optimization ◽  
Eagle Strategy

The power loss in electrical power systems is an important issue. Many techniques are used to reduce active power losses in a power system where the controlling of reactive power is one of the methods for decreasing the losses in any power system. In this paper, an improved particle swarm optimization algorithm using eagle strategy (ESPSO) is proposed for solving reactive power optimization problem to minimize the power losses. All simulations and numerical analysis have been performed on IEEE 30-bus power system, IEEE 118-bus power system, and a real power distribution subsystem. Moreover, the proposed method is tested on some benchmark functions. Results obtained in this study are compared with commonly used algorithms: particle swarm optimization (PSO) algorithm, genetic algorithm (GA), artificial bee colony (ABC) algorithm, firefly algorithm (FA), differential evolution (DE), and hybrid genetic algorithm with particle swarm optimization (hGAPSO). Results obtained in all simulations and analysis show that the proposed method is superior and more effective compared to the other methods.

A Novel FACTS Based (DDSC) Compensator for Power-Quality Enhancement of L.V. Distribution Feeder with a Dispersed Wind Generator

2006 ◽  
Vol 7 (3) ◽  
Author(s):  
Adel M Sharaf ◽  
Khaled Mohamed Abo-Al-Ez
Keyword(s):  
Power Quality ◽  
Distributed Generation ◽  
Distribution System ◽  
Power Transmission ◽  
Traditional Approach ◽  
Distribution Networks ◽  
System Capacity ◽  
Quality Enhancement ◽  
Wind Generator ◽  
Transmission And Distribution

In a deregulated electric service environment, an effective electric transmission and distribution networks are vital to the competitive environment of reliable electric service. Power quality (PQ) is an item of steadily increasing concern in power transmission and distribution. The traditional approach to overcoming capacity and quality limitations in power transmission and distribution in many cases is the addition of new transmission and/or generating capacity. This, however, may not be practicable or desirable in the real case, for many of reasons. From technical, economical and environmental points of view, there are two important - and most of the time combined - alternatives for building new transmission or distribution networks to enhance the transmission system capacity, and power quality: the Flexible alternating current transmission devices and controllers, and the distributed generation resources near the load centers. The connection of distributed generation to the distribution grid may influence the stability of the power system, i.e. angle, frequency and voltage stability. It might also have an impact on the protection selectivity, and the frequency and voltage control in the system. This paper presents a low cost FACTS based Dynamic Distribution System Compensator (DDSC) scheme for voltage stabilization and power transfer and quality enhancement of the distribution feeders connected to a dispersed wind generator, using MATLAB/ SimPower System simulation tool.

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