scholarly journals Design Technique for Load-Sharing and Monitoring of a Power Plant Using an Intelligent Control Technique

Author(s):  
Kindjock J. J.

Abstract: The application of Data Technology (IT) has been growing rapidly recently. IT utilized to monitor flowing power and distributing electrical energy which is produced by thermal power plant. This project explains how to build and design interface system. Electrical energy needs to be monitored in order to keep energy following. Single Board Computer (SBC), microcontroller, sensors, and transceivers are used in logging electrical power for this project. Following to the reliable need of an efficient power supply and the concern about poor electricity power supply, deregulation, consistent overload on already existing overstressed power supply system which has become a major concern to the social economic needs. The study case system generating capacity consist of 10 units of 2000KVA (20,000VA) = 16000W for power factor of 0.8 which is tied to the exiting load demand of 30MW capacity. Research identity mischarge between the generating capacity and the load demand requirement. That the generator can only a total load capacity of 15MW at one engagement on rationalization and subsequently take the next 15MW capacity to the generator supply. This sequence of operation has put the study zone into regular percentage (blackout) there by negatively affecting the economy activities of the area. This research work has proposed for an additional capacity of 2000 KVA (20 MVA =16 MW) generating power plant for a giving power factor of 0.8 on the view to notice the existing total load of 30MW without any form of rationalization and percentage (blackout) in order to improve the power quality and voltage profile without problem in the day-to-day occurrence activities. The concern for poor power grid supply in the study case (Bertoua community) for the given load of about 16M capacity are taken due consideration with 2MWW capacity thermal power plant on the view to propose solution to improve the quality of energy supply to the Bertoua community and environ. The system is designed with electronic circuitry that can be used to sense/monitor voltage, current, frequency, temperature, pressure and cool level. The design system is modeled in proteus and matrix laboratory (MATLAB) Environment with the application of isochronous mode of control with (10 unit of 2000kVA thermal plant. The improved mode of control (Isochronous technique) was preferred over droop type of generator load sharing techniques, because the improved versus allows and maintained constants speed and frequency regardless of gradual building up of the load to the peak demand scenarios. The modeled Simulink block are configured as an intelligent system multiple generators set in parallel state to monitor and control the gradual load increase from consumer-end to the generators capacity of 2mVA thermal power plant in order to allow load of 1×2000kVA, 2×2000kVA, 3×2000kVA, 4×2000kVA, 5×2000kVA, 6×2000kVA, 7×2000kVA, 8×2000kVA, 9×2000kVA, 10×2000kVA. Since the control system will become an essential factor for reliability of power plants and electrical distribution networks consumption and electric utility at large on the view to investigate appropriate load sharing and balancing, load scheduling, load forecasting, fuel-consumption pattern, optimizing generation capacity in order to optimize energy saving, costsaving and performance. Keywords: Load-Sharing, Monitoring

2021 ◽  
Vol 18 (2) ◽  
pp. 60-66
Author(s):  
A.D. Mekhtiyev ◽  

The article deals with the issue of using a thermoacoustic engine as a low-power cogeneration source of energy for autonomous consumer power supply capable of operating on various types of fuel and wastes subject to combustion. The analysis of the world achievements in this field of energy has been carried out. A number of advantages make it very promising for developing energy sources capable of complex production of electrical and thermal energy with a greater efficiency than that of present day thermal power plants. The proposed scheme of a thermal power plant is based on the principle of a Stirling engine, but it uses the most efficient and promising thermoacoustic converter of heat into mechanical vibrations, which are then converted into electric current. The article contains a mathematical apparatus that explains the basic principles of the developed thermoacoustic engine. To determine the main parameters of the thermoacoustic engine, the methods of computer modeling in the DeltaEC environment have been used. A layout diagram of the laboratory sample of a thermal power plant has been proposed and the description of its design has been given. It has been proposed to use dry saturated steam as the working fluid, which makes it possible to increase the generated power of the thermoacoustic engine.


2013 ◽  
Vol 805-806 ◽  
pp. 17-20
Author(s):  
Yong Ping Yang ◽  
Yong Sheng Hu ◽  
Qin Yan ◽  
Gang Yang

Solar Linear Fresnel thermal power plant is typical linear focus solar thermal system. It has the advantage of simple structure, lower investment cost and so on. At present, Solar Linear Fresnel is developing and popularizing all over the word. Some of them are already in commercial operation. According to the typical climate data, the thermal character and generating capacity of Linear Fresnel systems are analyzed, including thermal receiving efficiency, power generating efficiency and thermal losses regularity. The research results can be used to support Solar Linear Fresnel system operation and design optimization.


2020 ◽  
Vol 4 (41) ◽  
pp. 9-16
Author(s):  
VALENTIN GUSAROV ◽  

As industrial production expands, infrastructure develops, and new technological equipment is put into operation, energy needs increase, which means that the role of reliable energy supply to industrial enterprises increases. Electricity is used to light the territory of the enterprise, workshops, and laboratories, operate machines and mechanisms, automatically control the heat supply of premises and other technological processes. The level of reliability and security of heat and electricity supplies determines the stability of the enterprise and its economic efficiency. (Research purpose) The research purpose is in studying the economic efficiency of using own thermal power plant based on a gas turbine power unit. (Materials and methods) The article presents the advantages of using own thermal power plant that runs on natural gas. The most efficient balance of heat and electric energy production was determined. (Results and discussion) The article presents the construction of thermal power plant for the heat supply of buildings and structures defined by the project on the territory of the Federal Scientific Agroengineering Center VIM. The article considers the emerging trend of industrial enterprises building their own power plants, which make it possible to provide themselves with heat and electricity independently and guarantee more reliable operation of workshops by reducing downtime and disruptions of technological processes. (Conclusions) The use of a thermal power plant based on a gas turbine power unit will allow to get an annual profit, ensure energy independence, increase the reliability of power supply, and increase the profitability of production. Many large enterprises, pursuing economic goals, along with their own electricity supply, supply «excess» energy to centralized networks, often the level of energy supply «for export» significantly exceeds the level of their own consumption.


2014 ◽  
Vol 960-961 ◽  
pp. 1501-1507 ◽  
Author(s):  
Feng Ren

The site selection optimization for thermal power plant will directly impact the economic operation and sustainable development. On the basis of constructing index system for site selection of thermal power plant, the method of rough set is applied to obtain the index weights, which are determined only by the system potential information. Through the method of expert decision-making, the quantitative and qualitative information is integrated, and the priority of the alternatives is obtained. The multi-objective model for site selection optimization is built up to balance the economical efficiency and the average comprehensive efficiency. In consideration of decision-makers predilection and heat load demand, the two goals of cost minimum and average comprehensive efficiency maximum are achieved at the same time. Case analysis indicates that the method for site selection optimization of thermal power plant proposed in this paper possesses some advantages, such as scientificity and practicability.


Author(s):  
Sreepradha Chandrasekharan ◽  
Rames Chandra Panda ◽  
Bhuvaneswari Natrajan Swaminathan

AbstractMajority of the power plants in the world is based on coal. Pulverized coal is used to generate pressurized steam to drive turbines where-by chemical energy is converted to electrical energy. Modeling of the steam generator in thermal power plant plays a major role as it comprises of interactive units like economizer, drum and super-heater. Experiments across different units of the power plant are carried out to build correlations between input and output. Main objective of the work is to compare performances arising out by considering the system-model as three individual units or as one integrated boiler unit. In order to do this, multiple regression equations are derived based on quadratic models. The dependability of the pressure and temperature on the other variables are analyzed using the statistical analysis tool and validation of the derived model with the plant data is performed. Significance of regressions were evaluated based on ANOVA which in combination with standardized residuals distribution and their means for confidence levels of 95 and 99 %, helped in validating the model. Operating parameters are optimized using RSM supported by design of experiments with Box-Behnken design. These models will be helpful in understanding and designing the safe operation and control of thermal power plants.


From times immemorial it is a conversant rudimentary fact that the State Electricity Boards of India were cash strapped with no exception of bifurcated Andhra Pradesh. To avert from such precarious and deteriorating economic situations of widening gap between increasing trend of cost of supply of electricity and meagre power tariffs, the restructuring of Andhra Pradesh State Electricity Board became quite inevitable according to the Electricity Reform Act of 1998 to ensure its commercial viability and efficiency. To usher gainful insights regarding rapid emergence of competitive markets in Thermal Electric Energy Industry, this research paper computes power tariff in Generation segment for Rayalaseema Thermal Power Plant with installed capacity of 2x210 MW both during Pro-Privatization Period and during Privatization Period with strict adherence to Central Electricity Regulation Commission ` (CERC) Guidelines. The estimated price per Kilo Watt Hour of electricity generated during pro privatization and during privatization was Rs.1.29 Paise per Kilowatt Hour and Rs.2.55 Paise per Kilowatt Hour. These calculations were based on the price opinionated and discriminatory techniques of pricing policies in partially monopolistically structure of Thermal Electricity Generation Industry. It comprises of recuperation of twelve-monthly static concerns and fixed expenditures that constitutes Interest on Principal amount rented, downgrading of assets, maneuvering operations and conservation measures of overwhelming expenditures, (eliminating energy feedstock), chargeable rate on income figured , interest on operational wealth at standard norm of production of electrical energy or voltage , productivity and lucrativeness of electric business in relation with equivalence or parity and energy inconstant duties and charges including feedstock fee with recouping for each unit or kilowatt of electric energy multifarious delivered. Value added to this, further estimations were carried out for projected power tariff for the tenure period ranging from 2019-2020 to 2031-2032 using statistical time series trend analysis. During all these future years similar trend is likely to be exhibited with estimated power tariff at Rs. 1.95 Paise per Kilo Watt Hour.


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