Design Optimization of Sustainable Off-Grid Power Systems for the Developing World

2011 ◽  
Author(s):  
Amy Bilton ◽  
Leah Kelley ◽  
Francesco Mazzini
Keyword(s):  
Power Systems ◽  
Power System ◽  
Hybrid Systems ◽  
System Reliability ◽  
Developing World ◽  
Climatic Conditions ◽  
Small Scale ◽  
Small Hospital ◽  
Remote Areas ◽  
Method Show

Electrification of remote areas in the developing world can greatly improve the health and economic standing of the population. Unfortunately, providing power to these remote areas can be expensive and determining the most economical solution is not trivial. This paper presents a method to compare the economics of different small-scale power systems for developing world. In this method, models are developed to describe the performance of power systems composed of diesel generators, batteries with photovoltaics or wind turbines, and hybrid systems. These models are coupled to an optimizer to determine the lowest cost solution that meets the desired system reliability. The reliability is expressed as Loss of Load Probability, and is computed using hourly solar and wind data. In this paper, this method is used to design a power system for a small hospital in the developing world. The results are presented for three sample locations in Honduras, Pakistan, and Uganda. Results show that the economic attractiveness of different technologies varies greatly due to local climatic conditions. The variety and soundness of the solutions found using this method show that it can aid in the design of a small-scale power system for any location in the developing world.

scholarly journals Тhe study of electronic generation effect on statical aperiodic stability of electrical power system

2020 ◽  
Vol 22 (2) ◽  
pp. 51-64
Author(s):  
A. G. Fishov ◽  
I. S. Murashkina ◽  
A. I. Marchenko ◽  
E. Erdenebat ◽  
Y. S. Ivkin
Keyword(s):  
Power Systems ◽  
Power System ◽  
Renewable Energy Sources ◽  
Electrical Power ◽  
Power Grids ◽  
Small Scale ◽  
Electrical Power System ◽  
Electrical Grid ◽  
Electrical Grids ◽  
Key Aspects

One of the key aspects in the development of power engineering all over the world is the use of distributed small-scale generation. This is both based on fuel carbon resources with a synchronized connection between sources when they are connected to the electric power grids and renewable energy sources operated in the electrical grid via frequency converters (electronic generation). The latter brings an inevitable broad use of inverters in available AC power systems. The objectives of this paper are numerous. First is the desire to study the effect of electronic generation on modes and stability of current electrical grids and electrical power systems. Another objective is to establish requirements for electronic generation control that lets us minimize actions on relay protection coordination and automation upon the integration of electronic generation in power grids. A final objective is to increase the reliability of general electrical modes. This article shows the outcomes of the study on the statical aperiodic stability of the electrical power system upon the integration of electronic generation, requirements for its statical characteristics, and the control when operated within the electrical power system.

Harmonic Solutions To Commercial And Industrial Electrical Power Systems

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Amarjeet Singh
Keyword(s):  
Power Systems ◽  
Power System ◽  
System Reliability ◽  
Electrical Power ◽  
Harmonic Distortion ◽  
System Capacity ◽  
Electrical Power System ◽  
Electrical Power Systems

Problems associated with harmonic distortion are well understood for electrical power system applications.The right solution is challenging. There are numerous technologies to choose from, each with specific technical and economic advantages. This paper provides recommendations for reducing harmonic distortion, improving system capacity and improving system reliability. Special considerations for applying capacitors on a power systems with harmonics will be discussed.

Modeling and Simulation of a Small-Scale Mining Road Headers Constant Power System

2013 ◽  
Vol 325-326 ◽  
pp. 966-969
Author(s):  
Yan Xi Li ◽  
De Chao Song ◽  
Gang Liu ◽  
Huan Geng Geng ◽  
Liang Fa Gong
Keyword(s):  
Power Systems ◽  
Power System ◽  
Mathematical Models ◽  
Modeling And Simulation ◽  
Hydraulic System ◽  
Working Condition ◽  
Small Scale ◽  
New Production ◽  
Constant Power ◽  
Analysis Of Stability

This paper is basic on a new production small-scale mining road header. It researches the characters of the hydraulic system and mainly concerns on its constant power systems mathematical models, analysis of stability of working condition, the simulation and modulation using the software of AMESim.

scholarly journals Methods of analysis of the power system security

2018 ◽  
Vol 58 ◽  
pp. 02018 ◽  
Author(s):  
Alexey Osak ◽  
Daniil Panasetsky ◽  
Elena Buzina
Keyword(s):  
Power Systems ◽  
Power System ◽  
Reliability Analysis ◽  
Control Systems ◽  
System Reliability ◽  
Security Analysis ◽  
General Description ◽  
Development Scenarios ◽  
System Reliability Analysis ◽  
Smart Technologies

Increasing the intelligent level of the PS control systems caused by the implementation of Smart technologies changes the structure and the properties of PS and increases the importance of system reliability analysis. System reliability analysis includes two components – the balance analysis and the regime analysis. On the one hand, there are a large number of studies that assess the reliability of the power system examining various aspects and methods of solving this problem. In practice, the security analysis is limited by the calculations of power flows, static and dynamic stability for a number of forecast periods for the normal and repair circuits considering the most severe disturbances. The existing approach allows defining the requirements and adjusting emergency control systems, but does not allow evaluating and comparing solutions for power grid constructions. The authors propose a new method for power system reliability evaluation, which is suitable for planning development and operation of power systems. The method includes a general description of the algorithm which allows to compare various development scenarios, as well as to assess the reliability level of their implementation.

scholarly journals Power System Reliability Assessment in a Complex Restructured Power System

2019 ◽  
Vol 9 (4) ◽  
pp. 2296 ◽  
Author(s):  
N.Mahiban Lindsay ◽  
A.K. Parvathy
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electricity Market ◽  
System Reliability ◽  
Reliability Assessment ◽  
Electric Energy ◽  
Electric Power System ◽  
Power System Reliability ◽  
Bulk Power ◽  
Adequacy Assessment

The basic purpose of an electric power system is to supply its consumers with electric energy as parsimoniously as possible and with a sensible degree of continuity and quality. It is expected that the solicitation of power system reliability assessment in bulk power systems will continue to increase in the future especially in the newly deregulated power diligence. This paper presents the research conducted on the three areas of incorporating multi-state generating unit models, evaluating system performance indices and identifying transmission paucities in complex system adequacy assessment. The incentives for electricity market participants to endow in new generation and transmission facilities are highly influenced by the market risk in a complex restructured environment. This paper also presents a procedure to identify transmission deficiencies and remedial modification in the composite generation and transmission system and  focused on the application of probabilistic techniques in composite system adequacy assessment

Reliability Constrained Optimal Design of Distributed Generators in Power System Under Load and Wind Turbine Generation Uncertainty

2021 ◽  
Author(s):  
Zhetao Chen ◽  
Zhimin Xi
Keyword(s):  
Power Systems ◽  
Power System ◽  
System Reliability ◽  
High Reliability ◽  
Optimal Placement ◽  
Binary Particle Swarm Optimization ◽  
Power System Reliability ◽  
Analysis And Design ◽  
Distributed Generators ◽  
Eigenvector Dimension Reduction

Abstract Power systems are designed to meet power demands of the communities with high reliability. Distributed generators (DGs) could play an essential role in improving the power system reliability and resilience. To date, influence of the uncertainty of the DGs to power system reliability has not been well addressed. Consequently, placement of the DGs considering reliability constraints may not be optimally conducted. This paper proposes reliability analysis and design of power systems under time-dependent load uncertainty and wind power generation uncertainty using an efficient uncertainty quantification (UQ) method, i.e., the eigenvector dimension reduction (EDR) method. Furthermore, binary particle swarm optimization (B-PSO) is proposed to address the optimal placement of DGs considering the reliability constraint. Two case studies, including an IEEE 14-bus power system and an IEEE 57-bus power system, are used to demonstrate the effectiveness of the proposed methodology.

Reliability Evaluation of Electric Power System Containing Distribution Generation

2011 ◽  
Vol 383-390 ◽  
pp. 3472-3478 ◽  
Author(s):  
Sheng You Xu ◽  
Min You Chen ◽  
Neal Wade ◽  
Ran Li
Keyword(s):  
Power Systems ◽  
Power System ◽  
Electric Power ◽  
System Reliability ◽  
Evaluation Method ◽  
Electric Power Systems ◽  
Electric Power System ◽  
Calculating Method ◽  
Probabilistic Evaluation ◽  
Distribution Generation

The application of renewable energy in electric power system is growing rapidly due to enhanced public concerns for adverse environmental impacts and escalation in energy costs associated with the use of conventional energy sources, distribution generation (DG) is recognized as an encouraging and cost effective generation source both in large grid connected systems and small isolated applications. Power output from distribution generation is not readily controllable. High distribution generation penetration can lead to high-risk levels in power system reliability and stability. In order to maintain the system reliability and stability, this paper presents a probabilistic evaluation method that can incorporate the impacts on reliability of new energy utilization in electric power systems. Two procedures designated as equivalent simplifying method and the islanded reliability calculating method are proposed and discussed. In the equivalent simplifying method, the equivalent failure rate and failure during time for a given system at a specified reliability level is determined using system equivalent simplifying. In the islanded probability calculating method, the islanded probability at a load point for a given system containing distribution generation is calculated. The analysis results of example show that the probabilistic evaluation method is feasible for the operator to decide the appreciate capability and detailed location of possible distribution generation in electric power systems, and consequently a desired level of reliability is obtained.

scholarly journals Thermodynamic and Cost Analysis of a Solar Dish Power Plant in Spain Hybridized with a Micro-Gas Turbine

Energies ◽  
2020 ◽  
Vol 13 (19) ◽  
pp. 5178
Author(s):  
Judit García-Ferrero ◽  
Irene Heras ◽  
María Jesús Santos ◽  
Rosa Pilar Merchán ◽  
Alejandro Medina ◽  
...  
Keyword(s):  
Power Plant ◽  
Power Systems ◽  
Fuel Consumption ◽  
Climatic Conditions ◽  
Point Of View ◽  
Pollutant Emissions ◽  
Small Scale ◽  
Levelized Cost Of Electricity ◽  
High Solar Radiation ◽  
Parabolic Dish

Small-scale hybrid parabolic dish concentrated solar power systems are a promising option to obtain distributed electricity. During the day, solar energy is used to produce electricity, and the absence of sunlight can be overwhelmed with fuel combustion. This study presents a thermo-economic survey for a hybridized power plant in different regions of Spain, considering the local climatic conditions. The developed model considers the instant solar irradiance and ambient temperature dynamically, providing an estimation of the power output, the associated fuel consumption, and the most relevant pollutant emissions linked to combustion. Hybrid and combustion-only operating modes at selected geographical locations in Spain (with different latitudes, mean solar irradiances, and meteorological conditions) are analyzed. The levelized cost of electricity indicator is estimated as a function of investment, interest rate, maintenance, and fuel consumption actual costs in Spain. Values of about 124 €/MWhe are feasible. Fuel consumption and emissions in hybrid operation can be reduced above 30% with respect to those of the same turbine working in a pure combustion mode. This model shows the potential of hybrid solar dishes to become cost-competitive against non-renewable technologies from the point of view of costs and reduction in gas emission levels in regions with high solar radiation and low water resources.

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