Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515893
A. Alhaj, M. Hassan
Tuning and performance analysis of thyristor controlled series capacitor (TCSC) and power system stabilizer (PSS) is most important issue to mitigate the phenomena of low frequency oscillations. To damp out all poor modes, coordination between TCSC and PSS controllers under different loading conditions is formulated as optimization problem. Enhancement of damping of electromechanical modes (EM) through maximizing of damping ratio is the objective function which fixed by Particle Swarm optimization (PSO) algorithm. Developed approach is then, implemented on SMIB. To validate effectiveness of proposed algorithm, eigenvalue analysis as well as nonlinear time domain simulation is demonstrated considering different operating modes.
{"title":"Design and Performance Evaluation of TCSC and PSS to Mitigate Low Frequency Oscillations","authors":"A. Alhaj, M. Hassan","doi":"10.1109/ICCCEEE.2018.8515893","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515893","url":null,"abstract":"Tuning and performance analysis of thyristor controlled series capacitor (TCSC) and power system stabilizer (PSS) is most important issue to mitigate the phenomena of low frequency oscillations. To damp out all poor modes, coordination between TCSC and PSS controllers under different loading conditions is formulated as optimization problem. Enhancement of damping of electromechanical modes (EM) through maximizing of damping ratio is the objective function which fixed by Particle Swarm optimization (PSO) algorithm. Developed approach is then, implemented on SMIB. To validate effectiveness of proposed algorithm, eigenvalue analysis as well as nonlinear time domain simulation is demonstrated considering different operating modes.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"54 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86728404","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515870
O. B. Elkhidir, I. El-Amin
T60 relay is one of the new digital relays has been designed to meet the requirements of high sensitivity, reliability and high speed. This development led to notable simplification in transformer differential protection 87T function by reducing cost, cabling and auxiliary equipment. However, still miss-operation cases in transformer differential protection can occur from time to time. This paper reports on two unwanted-operation cases of transformer differential protection happened in Garie power plant in Sudan. In the both cases, failures in the CT/VT module of T60 relays cause unwanted operation of the protection system. These failures could be a result of aging, problems in DC power supply or from the design of these modules. More investigations are needed to find the roots of these failures. In the both cases, the failures are hidden type in which the relay will not operate unless unusual event has happened. The failures could have been detected and removed, if the preventive maintenance was effective. In order to insure reliability and sensitivity of the relays, preventive maintenance should take place from time to time.
{"title":"Unwanted operation of differential protection function in T60 relays due to failures in CT/VT modules","authors":"O. B. Elkhidir, I. El-Amin","doi":"10.1109/ICCCEEE.2018.8515870","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515870","url":null,"abstract":"T60 relay is one of the new digital relays has been designed to meet the requirements of high sensitivity, reliability and high speed. This development led to notable simplification in transformer differential protection 87T function by reducing cost, cabling and auxiliary equipment. However, still miss-operation cases in transformer differential protection can occur from time to time. This paper reports on two unwanted-operation cases of transformer differential protection happened in Garie power plant in Sudan. In the both cases, failures in the CT/VT module of T60 relays cause unwanted operation of the protection system. These failures could be a result of aging, problems in DC power supply or from the design of these modules. More investigations are needed to find the roots of these failures. In the both cases, the failures are hidden type in which the relay will not operate unless unusual event has happened. The failures could have been detected and removed, if the preventive maintenance was effective. In order to insure reliability and sensitivity of the relays, preventive maintenance should take place from time to time.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"12 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87172604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515785
Muslim Ali, M. Abdelwahab, Sally D. Awadekreim, S. Abdalla
The demand of innovated advanced control for incubator is rabidly increasing due to the significance of reducing the death ratio among the infant baby. In incubator, there are numbers of parameters need to be monitored. This paper presented an advance control system used to monitor some important parameter that affect the life of infant baby. This technique simultaneously monitored and controlled more than one parameter with advanced control and provides smooth operation helps to increase the accuracy of the system. The proposed system contained four temperature sensors which are used to adjust the incubator temperature and extended to monitor the skin temperature. The system also used two sensors to measure humidity. An application page was designed to ensure easy monitoring service for user. The systems based on Arduino and offer the ability to control incubator using the serial port.
{"title":"Development of a Monitoring and Control System of Infant Incubator","authors":"Muslim Ali, M. Abdelwahab, Sally D. Awadekreim, S. Abdalla","doi":"10.1109/ICCCEEE.2018.8515785","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515785","url":null,"abstract":"The demand of innovated advanced control for incubator is rabidly increasing due to the significance of reducing the death ratio among the infant baby. In incubator, there are numbers of parameters need to be monitored. This paper presented an advance control system used to monitor some important parameter that affect the life of infant baby. This technique simultaneously monitored and controlled more than one parameter with advanced control and provides smooth operation helps to increase the accuracy of the system. The proposed system contained four temperature sensors which are used to adjust the incubator temperature and extended to monitor the skin temperature. The system also used two sensors to measure humidity. An application page was designed to ensure easy monitoring service for user. The systems based on Arduino and offer the ability to control incubator using the serial port.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"38 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74092091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515799
H. Taha, A. Alhassan
Vehicular Ad-hoc Network (VANET) turning into a hot research topic because of its pertinence in the areas of road safety, entertainment and driving experience. In wireless networks the information losses are obsessed with the nodes speed, the routing protocol used and therefore the accessible channel. The main objective of this paper is to compare the performance of three routing protocols particularly Ad-hoc On Demand Distance Vector (AODV), Optimized Link State Routing (OLSR) and Geographical Routing Protocol (GRP) from a single node point of view under highway mobility pattern with voice traffic in terms of routing traffic sent and received, end to end delay and throughput. According to simulation results it’s clearly discovered that GRP protocol performed better than other protocols in terms of routing traffic sent and received and throughput whereas OLSR is the most effective for time sensitive applications.
{"title":"Performance Evaluation of AODV, OLSR and GRP Routing Protocols in Vehicular Highway Environment","authors":"H. Taha, A. Alhassan","doi":"10.1109/ICCCEEE.2018.8515799","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515799","url":null,"abstract":"Vehicular Ad-hoc Network (VANET) turning into a hot research topic because of its pertinence in the areas of road safety, entertainment and driving experience. In wireless networks the information losses are obsessed with the nodes speed, the routing protocol used and therefore the accessible channel. The main objective of this paper is to compare the performance of three routing protocols particularly Ad-hoc On Demand Distance Vector (AODV), Optimized Link State Routing (OLSR) and Geographical Routing Protocol (GRP) from a single node point of view under highway mobility pattern with voice traffic in terms of routing traffic sent and received, end to end delay and throughput. According to simulation results it’s clearly discovered that GRP protocol performed better than other protocols in terms of routing traffic sent and received and throughput whereas OLSR is the most effective for time sensitive applications.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"29 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72710073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515855
Hala Algailani, M. Hamad
Sickle cell disease (SCD) is the most popular inherited blood disease, that red blood cells change its shape form circular shape to sickle shape and loses its main job which carries oxygen throughout the body. The watershed segmentation method has become highly developed for automated analysis of overlapping red blood cell microscopic images. The aim of this work is to suppress over segmentation problem which is a major drawback of the watershed algorithm. The experimental results showed that, watershed is most effective when done on filtered image using non local means denoising method. The effectiveness of the proposed method is validated by analyzing the image segmentation quality measures. The proposed method provides higher performance in term of accuracy, sensitivity and specificity factors.
{"title":"Detection of Sickle Cell Disease Based on an Improved Watershed Segmentation","authors":"Hala Algailani, M. Hamad","doi":"10.1109/ICCCEEE.2018.8515855","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515855","url":null,"abstract":"Sickle cell disease (SCD) is the most popular inherited blood disease, that red blood cells change its shape form circular shape to sickle shape and loses its main job which carries oxygen throughout the body. The watershed segmentation method has become highly developed for automated analysis of overlapping red blood cell microscopic images. The aim of this work is to suppress over segmentation problem which is a major drawback of the watershed algorithm. The experimental results showed that, watershed is most effective when done on filtered image using non local means denoising method. The effectiveness of the proposed method is validated by analyzing the image segmentation quality measures. The proposed method provides higher performance in term of accuracy, sensitivity and specificity factors.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"11 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86547578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515892
S. A. Rahim, Serien Ahmed, M. Nawari
Power demand in any region is continuously increasing causing changes in system’s frequency and hence causes major problems in system stability. Interconnected power systems have great advantages to maintain the stability, insure continuity of supply and furthermore maintain the frequency to its nominal value. The control of the interconnected power systems is done by Automatic Generation Control (AGC), which is composed of two parts, Automatic Voltage Regulator (AVR) and Load Frequency Control (LFC). Whenever a disturbance occurs, LFC acts to restore the system into its steady state with zero error as well as desired transient response characteristics. This paper demonstrates the design and implementation of integral and fuzzy logic controller (FLC) for a two area power system taking the steady state error and percent overshoot as comparison parameters. For a step load perturbation, the FLC produced better transient characteristics for the frequency deviation. MATLAB/ SIMULINK software was used to carry out the implementation and obtain results.
{"title":"A Study of Load Frequency Control for Two Area Power System Using Two Controllers","authors":"S. A. Rahim, Serien Ahmed, M. Nawari","doi":"10.1109/ICCCEEE.2018.8515892","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515892","url":null,"abstract":"Power demand in any region is continuously increasing causing changes in system’s frequency and hence causes major problems in system stability. Interconnected power systems have great advantages to maintain the stability, insure continuity of supply and furthermore maintain the frequency to its nominal value. The control of the interconnected power systems is done by Automatic Generation Control (AGC), which is composed of two parts, Automatic Voltage Regulator (AVR) and Load Frequency Control (LFC). Whenever a disturbance occurs, LFC acts to restore the system into its steady state with zero error as well as desired transient response characteristics. This paper demonstrates the design and implementation of integral and fuzzy logic controller (FLC) for a two area power system taking the steady state error and percent overshoot as comparison parameters. For a step load perturbation, the FLC produced better transient characteristics for the frequency deviation. MATLAB/ SIMULINK software was used to carry out the implementation and obtain results.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"54 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84456678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515876
Abdulla Ahmed, Tong Jiang
Electricity produced from renewable energy sources (RES) such as wind power (WP) offers a huge possibility for meeting the future power demands (PD). However, the utility of these sources needs an efficient energy storage system (ESS) to maintain the power grid system stability through the whole operation periods. Battery energy storage (BES) systems are capable to co-locate with RES to make balancing which can store the excess energy from these sources and reused it when needed. In this paper, integration of hybrid wind/battery system into diesel power plant (DPP) is presented. The proposed system is modeled as security constrained unit commitment (SCUC) problem with mixed-integer linear programming. The simulations have been performed using Gurobi8.0.0 solver implemented in MATLAB and the results show that the significant fuel saving can be achieved through the integration of the wind and the BES. The proposed system is suitable for remote areas applications to minimize the use of fossil fuels (FF), reduce the greenhouse emissions such as $CO_{2}$, increase the power generation and helpful in the power system management.
{"title":"Integration of Hybrid Wind/Battery System into Diesel Power Plant","authors":"Abdulla Ahmed, Tong Jiang","doi":"10.1109/ICCCEEE.2018.8515876","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515876","url":null,"abstract":"Electricity produced from renewable energy sources (RES) such as wind power (WP) offers a huge possibility for meeting the future power demands (PD). However, the utility of these sources needs an efficient energy storage system (ESS) to maintain the power grid system stability through the whole operation periods. Battery energy storage (BES) systems are capable to co-locate with RES to make balancing which can store the excess energy from these sources and reused it when needed. In this paper, integration of hybrid wind/battery system into diesel power plant (DPP) is presented. The proposed system is modeled as security constrained unit commitment (SCUC) problem with mixed-integer linear programming. The simulations have been performed using Gurobi8.0.0 solver implemented in MATLAB and the results show that the significant fuel saving can be achieved through the integration of the wind and the BES. The proposed system is suitable for remote areas applications to minimize the use of fossil fuels (FF), reduce the greenhouse emissions such as $CO_{2}$, increase the power generation and helpful in the power system management.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"54 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77621989","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515766
Ahmed GussmALLA M. Mohammed, H. Sirag, Sally Dafa allah A. Alkareem, M. Amien
In industrial processes, reliability, availability, and safety, are always in a high demand. Fault tolerant control (FTC) is fundamental these days in the automation industry. Control systems are susceptible against breakdown because of feasible shortcomings in actuators, sensors or different parts of the system. Equipment disappointment of the dynamic system part has additionally a noteworthy economy affect for causing unpredictable plant shutdown. The primary goal of this paper is to develop a control approach/strategy to estimate errors/faults guarantee a satisfactory performance for the system under both normal and fault environments, in addition to implement the correct fault tolerant identification method that will result in a reliable process of system operation. This can occur in nonlinear water tank systems, linearized around an operation point and performed by a mathematical model. The limit check based-model fault detection was used to detect the fault. The system component work under installed controller with FTC connected to it. Then, fault is emulated and entered independently for every part. After that a controller (with FTC joined to it) is to be reconfigured, when equipment fault occurred. The obtained result shows that, when the faults are injected separately in system components, the tank2 levels is affected and reach below the set point (50%). Within the sight of FTC, when the faults are injected, the proportional, integral, and derivative (PID) controller reconfigure the pump flow rate and valve position to maintain tank2 level.
{"title":"Design of Fault Tolerant Control System(strategy) for Two Water Tanks","authors":"Ahmed GussmALLA M. Mohammed, H. Sirag, Sally Dafa allah A. Alkareem, M. Amien","doi":"10.1109/ICCCEEE.2018.8515766","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515766","url":null,"abstract":"In industrial processes, reliability, availability, and safety, are always in a high demand. Fault tolerant control (FTC) is fundamental these days in the automation industry. Control systems are susceptible against breakdown because of feasible shortcomings in actuators, sensors or different parts of the system. Equipment disappointment of the dynamic system part has additionally a noteworthy economy affect for causing unpredictable plant shutdown. The primary goal of this paper is to develop a control approach/strategy to estimate errors/faults guarantee a satisfactory performance for the system under both normal and fault environments, in addition to implement the correct fault tolerant identification method that will result in a reliable process of system operation. This can occur in nonlinear water tank systems, linearized around an operation point and performed by a mathematical model. The limit check based-model fault detection was used to detect the fault. The system component work under installed controller with FTC connected to it. Then, fault is emulated and entered independently for every part. After that a controller (with FTC joined to it) is to be reconfigured, when equipment fault occurred. The obtained result shows that, when the faults are injected separately in system components, the tank2 levels is affected and reach below the set point (50%). Within the sight of FTC, when the faults are injected, the proportional, integral, and derivative (PID) controller reconfigure the pump flow rate and valve position to maintain tank2 level.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83332285","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515762
Wael M. A. Ahmedelbdawy, Abuelnuor A. A. Abuelnuor, Adil A. M. Omara, Sadah Adil Taha
Municipal solid waste (MSW) alludes to waste produced from residential, commercial, institution and public parks. The MSW is basically treated in three different methods: thermal conversion, biological treatment and landfilling. Landfilling is the process which used in this paper to treat the MSW. This paper aims to design and construct lab scale landfill model to provide a suitable technical solution for energy recovery in Khartoum using organic waste, and additionally to determine the amount of methane gas that can be produced from this landfill model. The methodology of experiment was carried out by digging the land to create a hole with dimensions of (2 m x 1.5 m x 2 m). The next step was construction of the first class of insulation layer recompacted clay. A protective layer was constructed and welded to prevent the leakage of waste water. Leachate collection system insulated was constructed and geotextile layer was added above it. Then, a manual collecting of food waste was done and the creation of the waste layer was carried out. Setup final closure layer was done which contains of geotextile. The landfill was filled in landfill parts to reach the ultimate height as soon as possible. Portable gas analyzer was used to measure CH4 concentrations by volume. The measuring process showed that the concentrations of CH4 vary in range 0.1 % to 0.3%. The results showed that the landfill technology could produce methane gas from organic waste and this indicated that organic waste can be an alternative source of energy.
{"title":"An experimental study on landfill technology to produce an alternative source of energy from organic waste","authors":"Wael M. A. Ahmedelbdawy, Abuelnuor A. A. Abuelnuor, Adil A. M. Omara, Sadah Adil Taha","doi":"10.1109/ICCCEEE.2018.8515762","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515762","url":null,"abstract":"Municipal solid waste (MSW) alludes to waste produced from residential, commercial, institution and public parks. The MSW is basically treated in three different methods: thermal conversion, biological treatment and landfilling. Landfilling is the process which used in this paper to treat the MSW. This paper aims to design and construct lab scale landfill model to provide a suitable technical solution for energy recovery in Khartoum using organic waste, and additionally to determine the amount of methane gas that can be produced from this landfill model. The methodology of experiment was carried out by digging the land to create a hole with dimensions of (2 m x 1.5 m x 2 m). The next step was construction of the first class of insulation layer recompacted clay. A protective layer was constructed and welded to prevent the leakage of waste water. Leachate collection system insulated was constructed and geotextile layer was added above it. Then, a manual collecting of food waste was done and the creation of the waste layer was carried out. Setup final closure layer was done which contains of geotextile. The landfill was filled in landfill parts to reach the ultimate height as soon as possible. Portable gas analyzer was used to measure CH4 concentrations by volume. The measuring process showed that the concentrations of CH4 vary in range 0.1 % to 0.3%. The results showed that the landfill technology could produce methane gas from organic waste and this indicated that organic waste can be an alternative source of energy.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"23 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83635306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2018-08-01DOI: 10.1109/ICCCEEE.2018.8515786
Abdulrahman Widaa, M. A. Ahmed
The need for compact reconfigurable/tunable multiband RF front-end components is becoming an essential requirement for the different RF/MW systems especially with the significantly increasing development in the wireless systems industry. In this paper, fractal Hilbert structure is used to realize a design of compact varactor-based tunable dualband bandpass filter for WiFi/WiMAX applications. Both bandwidth and centre frequency can be tuned effectively; the centre frequency tuning range is 2.1/5.1 – 2.9/5.8 GHz covering the 2.3/2.4/2.5 and 5.8 GHz of the WiFi/WiMAX frequency bands. The bandwidth is also reconfigured to provide narrow passband responses up to 2% of fractional bandwidth. The simulation results show that the proposed design has many good features as the compact size, and the simultaneous control of both passbands through the same individual tuning circuit.
{"title":"Compact Tunable Dual-Band Bandpass Filter For WiFi/WiMAX Applications","authors":"Abdulrahman Widaa, M. A. Ahmed","doi":"10.1109/ICCCEEE.2018.8515786","DOIUrl":"https://doi.org/10.1109/ICCCEEE.2018.8515786","url":null,"abstract":"The need for compact reconfigurable/tunable multiband RF front-end components is becoming an essential requirement for the different RF/MW systems especially with the significantly increasing development in the wireless systems industry. In this paper, fractal Hilbert structure is used to realize a design of compact varactor-based tunable dualband bandpass filter for WiFi/WiMAX applications. Both bandwidth and centre frequency can be tuned effectively; the centre frequency tuning range is 2.1/5.1 – 2.9/5.8 GHz covering the 2.3/2.4/2.5 and 5.8 GHz of the WiFi/WiMAX frequency bands. The bandwidth is also reconfigured to provide narrow passband responses up to 2% of fractional bandwidth. The simulation results show that the proposed design has many good features as the compact size, and the simultaneous control of both passbands through the same individual tuning circuit.","PeriodicalId":6567,"journal":{"name":"2018 International Conference on Computer, Control, Electrical, and Electronics Engineering (ICCCEEE)","volume":"73 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83847461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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