Pub Date : 2017-03-01DOI: 10.1109/IEECON.2017.8075758
S. Romphochai, A. Pichetjamroen, N. Teerakawanich, K. Hongesombut
With penetration of wind turbines, fault ride through capability is unconditionally considered as one of the most remarkable research area. Hence, this paper proposes the fault ride through capability improvement of DFIG wind turbines by using cooperative operation of fuzzy logic voltage regulator and Superconducting Fault Current Limiter (SFCL). BSCCO (Bi-2212) superconducting coil material is fully introduced to investigate in this paper. Under large disturbances such as faults, fuzzy logic voltage regulator is directly utilized to enhance a voltage dip at the DFIG terminal. Nevertheless, a high peak fault current cannot be deducted. For this reason, the Bi-2212 SFCL is used for fault current reduction simultaneously. As the simulation results, the proposed fuzzy logic voltage regulator and Bi-2212 SFCL combinative operation have a superior performance to diminish a peak current and improve fault ride through capability for Swedish grid code requirement.
{"title":"Coordinate operation of fuzzy logic voltage regulator and Bi-2212 SFCL for enhancing fault ride through capability of DFIG wind turbines","authors":"S. Romphochai, A. Pichetjamroen, N. Teerakawanich, K. Hongesombut","doi":"10.1109/IEECON.2017.8075758","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075758","url":null,"abstract":"With penetration of wind turbines, fault ride through capability is unconditionally considered as one of the most remarkable research area. Hence, this paper proposes the fault ride through capability improvement of DFIG wind turbines by using cooperative operation of fuzzy logic voltage regulator and Superconducting Fault Current Limiter (SFCL). BSCCO (Bi-2212) superconducting coil material is fully introduced to investigate in this paper. Under large disturbances such as faults, fuzzy logic voltage regulator is directly utilized to enhance a voltage dip at the DFIG terminal. Nevertheless, a high peak fault current cannot be deducted. For this reason, the Bi-2212 SFCL is used for fault current reduction simultaneously. As the simulation results, the proposed fuzzy logic voltage regulator and Bi-2212 SFCL combinative operation have a superior performance to diminish a peak current and improve fault ride through capability for Swedish grid code requirement.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121414450","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075857
Wannop Lakvaengmon, W. Naktong, V. Pirajnanchai, A. Ruengwaree
This article is presented the bandwidth expansion of double-horn antenna with a squared probe for wireless communication applications by using the basic structure of a monopole antenna with a double-horn waveguide to increase the gain and spread the applied frequency in the desired spectrum. The entire structure of the antenna was fabricated on a metal sheet with a thickness of t = 0.2 mm. It was designed with the CST program to improve impedance bandwidth to support wireless communication devices and WiFi system. The results of measurement found that the antenna had an impedance bandwidth of 70.99% (1.59–3.34 GHz), which conformed to support wireless communication standard.
{"title":"The bandwidth expansion of double-horn antenna with a squared probe for wireless communication applications","authors":"Wannop Lakvaengmon, W. Naktong, V. Pirajnanchai, A. Ruengwaree","doi":"10.1109/IEECON.2017.8075857","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075857","url":null,"abstract":"This article is presented the bandwidth expansion of double-horn antenna with a squared probe for wireless communication applications by using the basic structure of a monopole antenna with a double-horn waveguide to increase the gain and spread the applied frequency in the desired spectrum. The entire structure of the antenna was fabricated on a metal sheet with a thickness of t = 0.2 mm. It was designed with the CST program to improve impedance bandwidth to support wireless communication devices and WiFi system. The results of measurement found that the antenna had an impedance bandwidth of 70.99% (1.59–3.34 GHz), which conformed to support wireless communication standard.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128441495","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075760
Issaraporn Amornsawatwattana, P. Pao-la-or
This paper presents a mathematical model of temperature in solar thermal which are evinced in the second-order partial differential equation. The solar thermal analysis uses copper pipe, aluminium pipe, and anodized aluminium pipe to compare temperature distribution of water from three types of pipe. In a computer simulation, 3-D finite element method established in MATLAB program were applied for temperature investigation. The result was shown the graphical performance of the water temperature in various type of pipe.
{"title":"Analysis of temperature in solar thermal by 3-D finite element method","authors":"Issaraporn Amornsawatwattana, P. Pao-la-or","doi":"10.1109/IEECON.2017.8075760","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075760","url":null,"abstract":"This paper presents a mathematical model of temperature in solar thermal which are evinced in the second-order partial differential equation. The solar thermal analysis uses copper pipe, aluminium pipe, and anodized aluminium pipe to compare temperature distribution of water from three types of pipe. In a computer simulation, 3-D finite element method established in MATLAB program were applied for temperature investigation. The result was shown the graphical performance of the water temperature in various type of pipe.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116319435","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075916
Suphaphorn Panikhom
Control chaos in the practical implementation of Chua's circuit has been presented. Sliding mode control is employed for stabilization a Chua's system. Asymptotically stable of equilibrium points at the origin have guaranteed by the Lyapunov's function. Suitable coefficients of the sliding mode controller are obtained via Adaptive tabu search (ATS). The controlled Chua's circuit were verified the effectiveness by MATLAB and PSIM. Simulation and experimental results correspondence the proposed method are illustrated.
{"title":"Implementation of chaos control in Chua's circuit via sliding mode control","authors":"Suphaphorn Panikhom","doi":"10.1109/IEECON.2017.8075916","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075916","url":null,"abstract":"Control chaos in the practical implementation of Chua's circuit has been presented. Sliding mode control is employed for stabilization a Chua's system. Asymptotically stable of equilibrium points at the origin have guaranteed by the Lyapunov's function. Suitable coefficients of the sliding mode controller are obtained via Adaptive tabu search (ATS). The controlled Chua's circuit were verified the effectiveness by MATLAB and PSIM. Simulation and experimental results correspondence the proposed method are illustrated.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116770186","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075850
Kinupong Chomsuk, S. Tooprakai
Office of the National Broadcasting and Telecommunication Commission (NBTC), the Thai governmental organization decided to launch digital broadcasting. The implementation has to carry by the broadcasting license; the digital transmission testing has to carry on broadcasting on channel 30 while the analog television has to broadcast on channel 29. The adjacent channel interference must occur between analog television signal and digital television signal because of 20 MHz spacing between both signals. This paper proposes the experimental study of testing in order to measure and determine the degradation caused by the analog PAL television signal interferences on the digital television signal.
{"title":"Estimation on protection distance between analog TV and digital TV in adjacent channel at terrestrial television","authors":"Kinupong Chomsuk, S. Tooprakai","doi":"10.1109/IEECON.2017.8075850","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075850","url":null,"abstract":"Office of the National Broadcasting and Telecommunication Commission (NBTC), the Thai governmental organization decided to launch digital broadcasting. The implementation has to carry by the broadcasting license; the digital transmission testing has to carry on broadcasting on channel 30 while the analog television has to broadcast on channel 29. The adjacent channel interference must occur between analog television signal and digital television signal because of 20 MHz spacing between both signals. This paper proposes the experimental study of testing in order to measure and determine the degradation caused by the analog PAL television signal interferences on the digital television signal.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114158331","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075856
C. Chokchai, Nattapong Duangrit, P. Akkaraekthalin
This paper presents a monopole MIMO antenna using decagon fractal patch resonator and defected ground plane for wireless local area network (WLAN) application. The fractal technique is applied on the edge of antenna patch for the lower band of operating frequency. Meanwhile, the ground plane of antenna is disturbed with rectangular shape to decrease the mutual coupling between the radiating patch of MIMO antenna. From the results, the proposed antenna with the compact size of 50 × 60 × 1.6 mm3 is obtained. Then, its operating bandwidth can cover the entire WLAN frequency band of 2.40–2.485 GHz with low level of mutual transmission, resulting in the correlation coefficient of 0.01. In addition, the radiation results with the contrary beams can clearly confirm that the spatial diversity platform is obtained in the proposed MIMO antenna.
{"title":"Monopole MIMO antenna using decagon fractal patch resonator and defected ground plane for WLAN application","authors":"C. Chokchai, Nattapong Duangrit, P. Akkaraekthalin","doi":"10.1109/IEECON.2017.8075856","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075856","url":null,"abstract":"This paper presents a monopole MIMO antenna using decagon fractal patch resonator and defected ground plane for wireless local area network (WLAN) application. The fractal technique is applied on the edge of antenna patch for the lower band of operating frequency. Meanwhile, the ground plane of antenna is disturbed with rectangular shape to decrease the mutual coupling between the radiating patch of MIMO antenna. From the results, the proposed antenna with the compact size of 50 × 60 × 1.6 mm3 is obtained. Then, its operating bandwidth can cover the entire WLAN frequency band of 2.40–2.485 GHz with low level of mutual transmission, resulting in the correlation coefficient of 0.01. In addition, the radiation results with the contrary beams can clearly confirm that the spatial diversity platform is obtained in the proposed MIMO antenna.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127370107","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075807
Naras Kwanthong, Kriddikorn Kaewwongsri
This paper describes about identification vehicles system for police or soldier of government using to improve performance of checkpoint station security on streets. The system display information and queuing vehicles using wireless network communication based on XBee modules. Overlapping signal of wireless network and RSSI intensity using to design the system. The results with personal car and pickup truck, the maximum distance from a vehicle connect to network of checkpoint about 160 meters. The performance depend on checkpoint position and some material of vehicles.
{"title":"Identification and queuing vehicles using wireless network communication","authors":"Naras Kwanthong, Kriddikorn Kaewwongsri","doi":"10.1109/IEECON.2017.8075807","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075807","url":null,"abstract":"This paper describes about identification vehicles system for police or soldier of government using to improve performance of checkpoint station security on streets. The system display information and queuing vehicles using wireless network communication based on XBee modules. Overlapping signal of wireless network and RSSI intensity using to design the system. The results with personal car and pickup truck, the maximum distance from a vehicle connect to network of checkpoint about 160 meters. The performance depend on checkpoint position and some material of vehicles.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"84 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127423684","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075862
K. Puntsri, E. Khansalee, W. Wongtrairat
This work presents a design and implementation of inverse fast Fourier transform (IFFT) for coherent optical orthogonal frequency division multiple access passive optical network (CO-OFDMA-PON) using a field-programmable gate array (FPGA). The IFFT size of 1024 is considered. The core computation is forward FFT processing. The tested hardware consists of a digital-to-analog converter (DAC) with the sampling rate of 500 Msps and the FPGA form Xilinx ML605 evaluation board. The FPGA is the key computation. For the IFFT calculation topology, the Radix-4 with 4 parallel processing units is employed. As a result, 16 inputs are calculated at the same time. By employing parallel processing, the internal FPGA clock is reduced to only 31.25 MHz (=500/16 MHz). Additionally, in this work, 256-QAM is perfectly adopted. Consequently, the net speed up to 3.98 Gbps throughput can be achieved. The hardware resources usage is.
{"title":"Experimental demonstration of 1024-IFFT FPGA implementation with 3.98 Gbps throughput for CO-OFDMA-PON transmitters","authors":"K. Puntsri, E. Khansalee, W. Wongtrairat","doi":"10.1109/IEECON.2017.8075862","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075862","url":null,"abstract":"This work presents a design and implementation of inverse fast Fourier transform (IFFT) for coherent optical orthogonal frequency division multiple access passive optical network (CO-OFDMA-PON) using a field-programmable gate array (FPGA). The IFFT size of 1024 is considered. The core computation is forward FFT processing. The tested hardware consists of a digital-to-analog converter (DAC) with the sampling rate of 500 Msps and the FPGA form Xilinx ML605 evaluation board. The FPGA is the key computation. For the IFFT calculation topology, the Radix-4 with 4 parallel processing units is employed. As a result, 16 inputs are calculated at the same time. By employing parallel processing, the internal FPGA clock is reduced to only 31.25 MHz (=500/16 MHz). Additionally, in this work, 256-QAM is perfectly adopted. Consequently, the net speed up to 3.98 Gbps throughput can be achieved. The hardware resources usage is.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126805557","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075827
Pornchanok Namonta, P. Cherntanomwong
Visible Light Communication (VLC) Technology is the short range optical wireless communication technology using the light source such as LEDs for data transmission. The major advantage of VLC is that it causes no interference to RF-based devices and no bad effect to human body. Thus, this makes it possible to be used in intrinsically safe environment such as in a hospital. Moreover, it doesn't have the restriction likes a radio wave, VLC using a license free frequency bands. IEEE 802.15.7 VLC standard is one of the VLC standard. This standard consists of PHY I, II and III operating modes. In this paper, we first focus on analyzing PHY I with OOK modulation, which is targeted towards applications requiring data rate range from 11.67 kb/s to 100 kb/s with 200 kHz optical clock rate. Moreover, we propose the improvement of the real time vital sign transmission based on IEEE 802.15.7 VLC standard using PHY I operating modes for sending the vital signs data, which are temperature and heart rate. Compared with our previous system, there are improvements in many directions. The obvious improvement is the communication speed. Moreover, the transmission range is able to be increased by adding the VLC repeater.
{"title":"Real time vital sign transmission using IEEE 802.15.7 VLC PHY-I transceiver","authors":"Pornchanok Namonta, P. Cherntanomwong","doi":"10.1109/IEECON.2017.8075827","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075827","url":null,"abstract":"Visible Light Communication (VLC) Technology is the short range optical wireless communication technology using the light source such as LEDs for data transmission. The major advantage of VLC is that it causes no interference to RF-based devices and no bad effect to human body. Thus, this makes it possible to be used in intrinsically safe environment such as in a hospital. Moreover, it doesn't have the restriction likes a radio wave, VLC using a license free frequency bands. IEEE 802.15.7 VLC standard is one of the VLC standard. This standard consists of PHY I, II and III operating modes. In this paper, we first focus on analyzing PHY I with OOK modulation, which is targeted towards applications requiring data rate range from 11.67 kb/s to 100 kb/s with 200 kHz optical clock rate. Moreover, we propose the improvement of the real time vital sign transmission based on IEEE 802.15.7 VLC standard using PHY I operating modes for sending the vital signs data, which are temperature and heart rate. Compared with our previous system, there are improvements in many directions. The obvious improvement is the communication speed. Moreover, the transmission range is able to be increased by adding the VLC repeater.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126158513","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 : 2017-03-01DOI: 10.1109/IEECON.2017.8075746
Nidchabendha Chandanachulaka, W. Khan-ngern
This paper focuses on the design of zero energy consumption for small building system that can support the government energy efficiency plan (EEP 2015). The design suits for small residential home in Bangkok that the energy consumption is up to 1,500 Wh/day. This paper designs the off-grid photovoltaic (PV) system which its structure consists of 3 main parts: generation, storage, and load. Experimental results can be the realtime observed via a web server. The appropriate proportion of PV energy : load energy : battery energy becomes 7:5:2 using the most PV energy collection scenario. The storage and generation ratio is 1/3.5, is tested for 38 days and sustained to serve during the ending of raining season in Thailand.
{"title":"Design of zero energy consumption home system in Bangkok for energy efficient plan 2015","authors":"Nidchabendha Chandanachulaka, W. Khan-ngern","doi":"10.1109/IEECON.2017.8075746","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075746","url":null,"abstract":"This paper focuses on the design of zero energy consumption for small building system that can support the government energy efficiency plan (EEP 2015). The design suits for small residential home in Bangkok that the energy consumption is up to 1,500 Wh/day. This paper designs the off-grid photovoltaic (PV) system which its structure consists of 3 main parts: generation, storage, and load. Experimental results can be the realtime observed via a web server. The appropriate proportion of PV energy : load energy : battery energy becomes 7:5:2 using the most PV energy collection scenario. The storage and generation ratio is 1/3.5, is tested for 38 days and sustained to serve during the ending of raining season in Thailand.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2017-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128097509","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：