Pub Date : 2014-05-14DOI: 10.1109/ECTICON.2014.6839850
P. Tummas, P. Krachodnok, R. Wongsan
This paper proposes a frequency reconfigurable antenna system designed for cognitive radio applications. The antenna structure consists of a sensing antenna and a frequency reconfigurable antenna system. The sensing antenna scans the channel to discover frequency bands while the reconfigurable section is tuning to communicate within these bands. A reconfigurable antenna consists of five different patches and there frequencies cover from 2.1 GHz to 10.6 GHz. The frequency agility is achieved via a rotational motion of the patch antennas. The rotation is controlled by a stepping motor mounted on the back of the antenna structure and the motor's rotational motion is controlled by MEMS switch connected to a microcontroller. A frequency reconfigurable antenna offers many advantages such as easy fabrication, suitability for installation and coverage spectrum UWB (Ultra Wideband).
{"title":"A frequency reconfigurable antenna design for UWB applications","authors":"P. Tummas, P. Krachodnok, R. Wongsan","doi":"10.1109/ECTICON.2014.6839850","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839850","url":null,"abstract":"This paper proposes a frequency reconfigurable antenna system designed for cognitive radio applications. The antenna structure consists of a sensing antenna and a frequency reconfigurable antenna system. The sensing antenna scans the channel to discover frequency bands while the reconfigurable section is tuning to communicate within these bands. A reconfigurable antenna consists of five different patches and there frequencies cover from 2.1 GHz to 10.6 GHz. The frequency agility is achieved via a rotational motion of the patch antennas. The rotation is controlled by a stepping motor mounted on the back of the antenna structure and the motor's rotational motion is controlled by MEMS switch connected to a microcontroller. A frequency reconfigurable antenna offers many advantages such as easy fabrication, suitability for installation and coverage spectrum UWB (Ultra Wideband).","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115899792","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839812
C. Phatra, P. Krachodnok
This paper presents the design of a circularly polarized (CP) antenna for Radio Frequency Identification (RFID) reader using the ring slot microstrip antenna for Ultra High Frequency (UHF) band. The proposed antenna, which consists of a ring slot microstrip antenna with truncated U-slot, is placed on a FR4 substrate (εr = 4.5). The prototype antenna was fabricated with a total size of 100 × 100 × 1.6 mm3 which shows a measured impedance matching band of 830-970 MHz as well as measured rotating linear based circularly polarized radiation patterns.
{"title":"A circularly polarized antenna for UHF RFID reader","authors":"C. Phatra, P. Krachodnok","doi":"10.1109/ECTICON.2014.6839812","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839812","url":null,"abstract":"This paper presents the design of a circularly polarized (CP) antenna for Radio Frequency Identification (RFID) reader using the ring slot microstrip antenna for Ultra High Frequency (UHF) band. The proposed antenna, which consists of a ring slot microstrip antenna with truncated U-slot, is placed on a FR4 substrate (εr = 4.5). The prototype antenna was fabricated with a total size of 100 × 100 × 1.6 mm3 which shows a measured impedance matching band of 830-970 MHz as well as measured rotating linear based circularly polarized radiation patterns.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131395867","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839738
Sarinee Ouitrakul
This paper presents a preliminary study of electricity generation using Peltier modules. Ceramic thermoelectric cooling module (Peltier module), TEC1-12710 model, was used as electricity generation. The experimental box is a hardwood box and the inside is an aluminium box, which consists of hot and cold sides. The temperatures in a hot side and a cold side were controlled by using heater and dry ice, respectively. Electrical parameters of the Peltier module in a single module, series, parallel and mixed combination circuits were investigated at the temperature gradient of 10 degrees Celsius. The results showed that the voltage, current and power of a single module are 0.18V, 0.93A and 0.086W, respectively, at 0.1 ohms. When two and four modules are combined in series, the voltages of the modules are 2 and 4 times of a single module, respectively. In addition, 1.2 times of current is obtained from 4 parallel modules at the same condition.
{"title":"Preliminary experiment for electricity generation using Peltier modules","authors":"Sarinee Ouitrakul","doi":"10.1109/ECTICON.2014.6839738","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839738","url":null,"abstract":"This paper presents a preliminary study of electricity generation using Peltier modules. Ceramic thermoelectric cooling module (Peltier module), TEC1-12710 model, was used as electricity generation. The experimental box is a hardwood box and the inside is an aluminium box, which consists of hot and cold sides. The temperatures in a hot side and a cold side were controlled by using heater and dry ice, respectively. Electrical parameters of the Peltier module in a single module, series, parallel and mixed combination circuits were investigated at the temperature gradient of 10 degrees Celsius. The results showed that the voltage, current and power of a single module are 0.18V, 0.93A and 0.086W, respectively, at 0.1 ohms. When two and four modules are combined in series, the voltages of the modules are 2 and 4 times of a single module, respectively. In addition, 1.2 times of current is obtained from 4 parallel modules at the same condition.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134043215","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839821
Supachai Thisuk, Sakgasit Ramingwong
Personal Software Process (PSP) is a structured framework which aims to improve overall performance of software engineers in an individual level. PSP practitioners need to extensively collect their development data using specially designed tools. However, all currently available tools have limitations such as disruption and unstructured documentation. These unfortunates could subsequently reduce potential performance of the practitioners. This paper proposes an alternative tool which systematically tackles other tools' limitation as well as offering several additional features. As a result, the engineers can focus their efforts more on the development and self-improvement. This paper also discusses a case study of an implementation of this new tool.
{"title":"WBPS: A new web based tool for Personal Software Process","authors":"Supachai Thisuk, Sakgasit Ramingwong","doi":"10.1109/ECTICON.2014.6839821","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839821","url":null,"abstract":"Personal Software Process (PSP) is a structured framework which aims to improve overall performance of software engineers in an individual level. PSP practitioners need to extensively collect their development data using specially designed tools. However, all currently available tools have limitations such as disruption and unstructured documentation. These unfortunates could subsequently reduce potential performance of the practitioners. This paper proposes an alternative tool which systematically tackles other tools' limitation as well as offering several additional features. As a result, the engineers can focus their efforts more on the development and self-improvement. This paper also discusses a case study of an implementation of this new tool.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134053841","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839719
Y. Sillapawicharn
A hybrid synchronously rotating reference frame (HSRRF)-based voltage sag detection is proposed in this paper. The proposed method provides the fast and accurate voltage sag detection even in the distorted grid voltage environments. A hybrid algorithm is used to improve the performance by a combination of the instantaneous voltage sag detection part and the synchronously rotating reference frame (SRRF)-based voltage sag detection part. If any instantaneous voltage sag is detected and the voltages from SRRF-based voltage sag detection part decreases to the reference value, then the completed voltage sag condition is recognized. This proposed voltage sag detection provides a shorter detection time in every condition when comparing to the conventional methods. The validation of proposed algorithm is confirmed through the computer simulations which are operated in the distorted grid voltages with various conditions of the voltage sag.
{"title":"A hybrid synchronously rotating reference frame-based voltage sag detection under distorted grid voltages","authors":"Y. Sillapawicharn","doi":"10.1109/ECTICON.2014.6839719","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839719","url":null,"abstract":"A hybrid synchronously rotating reference frame (HSRRF)-based voltage sag detection is proposed in this paper. The proposed method provides the fast and accurate voltage sag detection even in the distorted grid voltage environments. A hybrid algorithm is used to improve the performance by a combination of the instantaneous voltage sag detection part and the synchronously rotating reference frame (SRRF)-based voltage sag detection part. If any instantaneous voltage sag is detected and the voltages from SRRF-based voltage sag detection part decreases to the reference value, then the completed voltage sag condition is recognized. This proposed voltage sag detection provides a shorter detection time in every condition when comparing to the conventional methods. The validation of proposed algorithm is confirmed through the computer simulations which are operated in the distorted grid voltages with various conditions of the voltage sag.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130781800","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839709
N. Tanthanuch, Kriangkrai Odthanu, N. Phloymuk, A. Singhasathein
The volt-time characteristic of the suspension insulator equipped in power system is an important property. It is used for the determination of protective level against the overvoltage. But in practical all suspension insulators are used in string insulator. Therefore, it is essential to obtain the characteristic of string insulator. In this study the insulators in string are porcelain insulator ANSI class 52-1 and 52-2, respectively. Under the standard lightning impulse voltage, positive and negative, the volt-time characteristics are obtained by statistical method. The results show that the increase of breakdown voltage is not proportional to the number of insulators in the string. For the positive impulse voltage, breakdown time is increased with the number of insulators. But it does not vary much for positive impulse voltage breakdown time, about 1.0-3.6 μs. Moreover, the mathematical model used to predict the volt-time characteristic of string insulator is proposed and it found to be well with the tested results.
{"title":"The variation of volt-time characteristics for suspension string insulators equipped in the distribution systems","authors":"N. Tanthanuch, Kriangkrai Odthanu, N. Phloymuk, A. Singhasathein","doi":"10.1109/ECTICON.2014.6839709","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839709","url":null,"abstract":"The volt-time characteristic of the suspension insulator equipped in power system is an important property. It is used for the determination of protective level against the overvoltage. But in practical all suspension insulators are used in string insulator. Therefore, it is essential to obtain the characteristic of string insulator. In this study the insulators in string are porcelain insulator ANSI class 52-1 and 52-2, respectively. Under the standard lightning impulse voltage, positive and negative, the volt-time characteristics are obtained by statistical method. The results show that the increase of breakdown voltage is not proportional to the number of insulators in the string. For the positive impulse voltage, breakdown time is increased with the number of insulators. But it does not vary much for positive impulse voltage breakdown time, about 1.0-3.6 μs. Moreover, the mathematical model used to predict the volt-time characteristic of string insulator is proposed and it found to be well with the tested results.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130795598","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839825
J. Haema, A. Bilsalam
This paper presented a nearly unity power factor isolated Class-D resonant inverter for series multi-coil induction hardening. The main switch are operated under the zero voltage switching condition and used leakage inductance and magnetite inductance of high frequency transformer apply to LLC resonant tank. A prototype was Class-D resonant operating 102-110 kHz variable frequency, when as heat up is 1 coil and heat up are 2 coil 800 and 730 W maximum input power. Experimental results, in a heat up each coil induction hardening had a nearly unity power factor, it can be heat up work pieces a size diameter 9.5-mm from room temperature to 400 oC within time about 50 second, 1 minutes and 94%, 92% efficiency at maximum full power.
{"title":"A nearly unity power factor isolated Class-D resonant inverter for series multi-coil induction hardening","authors":"J. Haema, A. Bilsalam","doi":"10.1109/ECTICON.2014.6839825","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839825","url":null,"abstract":"This paper presented a nearly unity power factor isolated Class-D resonant inverter for series multi-coil induction hardening. The main switch are operated under the zero voltage switching condition and used leakage inductance and magnetite inductance of high frequency transformer apply to LLC resonant tank. A prototype was Class-D resonant operating 102-110 kHz variable frequency, when as heat up is 1 coil and heat up are 2 coil 800 and 730 W maximum input power. Experimental results, in a heat up each coil induction hardening had a nearly unity power factor, it can be heat up work pieces a size diameter 9.5-mm from room temperature to 400 oC within time about 50 second, 1 minutes and 94%, 92% efficiency at maximum full power.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115542775","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839763
Surachoke Thanapitak
An 1 V 33.2 pS OTA, which consumes power at 5.5 nW, is proposed. This OTA employs the input voltage pre-attenuation technique which based on CMOS common drain circuits with diode connected load to reduce the overall transconductance gain. The linear range of this proposed OTA is 370 mV for 1 % transconductance gain variation. Additionally, the pseudo-differential GM-C 2nd order LPF based on this OTA topology which dissipates 82 nW at 1 V supply with 74 dB dynamic range and cutoff frequency from 0.69 Hz - 76 Hz has been demonstrated. With comparison to the original work of the pre-input voltage attenuated OTA; the power dissipation, output voltage swing, IRN and DR are improved. All results of this work are simulated on 0.35 μm standard CMOS process.
{"title":"An 1-V, 74-dB, sub-Hz Gm-C filter based on a modular transconductance reduction technique","authors":"Surachoke Thanapitak","doi":"10.1109/ECTICON.2014.6839763","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839763","url":null,"abstract":"An 1 V 33.2 pS OTA, which consumes power at 5.5 nW, is proposed. This OTA employs the input voltage pre-attenuation technique which based on CMOS common drain circuits with diode connected load to reduce the overall transconductance gain. The linear range of this proposed OTA is 370 mV for 1 % transconductance gain variation. Additionally, the pseudo-differential GM-C 2nd order LPF based on this OTA topology which dissipates 82 nW at 1 V supply with 74 dB dynamic range and cutoff frequency from 0.69 Hz - 76 Hz has been demonstrated. With comparison to the original work of the pre-input voltage attenuated OTA; the power dissipation, output voltage swing, IRN and DR are improved. All results of this work are simulated on 0.35 μm standard CMOS process.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115624969","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839761
T. Charoenpong, C. Nuthong, U. Watchareeruetai
Due to a problem of current research concerning with occlude face detection occurring when detecting occluded face captured from any viewpoint of head between -90 degrees to +90 degrees, we propose a new method to detect occluded face from a viewpoint of face by skin color ratio of two parts of head region. Head data is captured from any viewpoint between -90 degrees to +90 degrees of viewpoint of head. This method consists of four steps which are primary head regions extraction, head area identification, skin area segmentation, and classification. For first step, foreground is extracted by Mahalanobis distance and background subtraction. In second step, head area is extracted based on primary head region. In third step, skin area is segmented by using multi-skin color database. Head region is divided into two parts based on center of head. For fourth step, a criterion of skin ratio of two parts of head is used for classification. In this paper, occluded face is detected by a criterion of skin ratio from each side of head. To evaluate performance of the method, huskin color ratio of two parts of head region. Head data is captured from any viewpoint between -90 degrees to +90 degrees of viewpoint of head. This method consists of four steps which are primary head regions extraction, head area identification, skin area segmentation, and classification. For first step, foreground is extracted by Mahalanobis distance and background subtraction. In second step, head area is extracted based on primary head region. In third step, skin area is segmented by using multi-skin color database. Head region is divided into two parts based on center of head. For fourth step, a criterion of skin ratio of two parts of head is used for classification. In this paper, occluded face is detected by a criterion of skin ratio from each side of head. To evaluate performance of the method, human head with and without obstacle captured from any viewpoint of headman head with and without obstacle captured from any viewpoint of head between -90 degrees to +90 degrees around the head is used. Based on a criterion of skin ratio from two sides of head, accuracy rate of non-occluded face and occluded face detection is 86.29%, and 91.02%, respectively. Advantage of this method is that this method can detect occluded face such as helmet or mask from any viewpoint of head.
{"title":"A new method for occluded face detection from single viewpoint of head","authors":"T. Charoenpong, C. Nuthong, U. Watchareeruetai","doi":"10.1109/ECTICON.2014.6839761","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839761","url":null,"abstract":"Due to a problem of current research concerning with occlude face detection occurring when detecting occluded face captured from any viewpoint of head between -90 degrees to +90 degrees, we propose a new method to detect occluded face from a viewpoint of face by skin color ratio of two parts of head region. Head data is captured from any viewpoint between -90 degrees to +90 degrees of viewpoint of head. This method consists of four steps which are primary head regions extraction, head area identification, skin area segmentation, and classification. For first step, foreground is extracted by Mahalanobis distance and background subtraction. In second step, head area is extracted based on primary head region. In third step, skin area is segmented by using multi-skin color database. Head region is divided into two parts based on center of head. For fourth step, a criterion of skin ratio of two parts of head is used for classification. In this paper, occluded face is detected by a criterion of skin ratio from each side of head. To evaluate performance of the method, huskin color ratio of two parts of head region. Head data is captured from any viewpoint between -90 degrees to +90 degrees of viewpoint of head. This method consists of four steps which are primary head regions extraction, head area identification, skin area segmentation, and classification. For first step, foreground is extracted by Mahalanobis distance and background subtraction. In second step, head area is extracted based on primary head region. In third step, skin area is segmented by using multi-skin color database. Head region is divided into two parts based on center of head. For fourth step, a criterion of skin ratio of two parts of head is used for classification. In this paper, occluded face is detected by a criterion of skin ratio from each side of head. To evaluate performance of the method, human head with and without obstacle captured from any viewpoint of headman head with and without obstacle captured from any viewpoint of head between -90 degrees to +90 degrees around the head is used. Based on a criterion of skin ratio from two sides of head, accuracy rate of non-occluded face and occluded face detection is 86.29%, and 91.02%, respectively. Advantage of this method is that this method can detect occluded face such as helmet or mask from any viewpoint of head.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124392208","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 : 2014-05-14DOI: 10.1109/ECTICON.2014.6839853
Nawakun Keawlumyai, Witsaroot Witoontorn, S. Chaitusaney
This paper proposes a reliability evaluation method of various types of bus configurations in electrical substations. The reliability is evaluated by using Newton-Raphson power flow calculation with minimal cut sets. Two types of failure modes, i.e. active failure and passive failure, are considered. In addition, the operation of protective devices and power capacity of devices are also taken into account as they affect the path of power flow in substation. The reliability evaluation results of all bus configuration types in electrical substations are compared by the following indices; LOLF, LOLP, and EENS.
{"title":"Reliability evaluation of electrical substations considering load growth","authors":"Nawakun Keawlumyai, Witsaroot Witoontorn, S. Chaitusaney","doi":"10.1109/ECTICON.2014.6839853","DOIUrl":"https://doi.org/10.1109/ECTICON.2014.6839853","url":null,"abstract":"This paper proposes a reliability evaluation method of various types of bus configurations in electrical substations. The reliability is evaluated by using Newton-Raphson power flow calculation with minimal cut sets. Two types of failure modes, i.e. active failure and passive failure, are considered. In addition, the operation of protective devices and power capacity of devices are also taken into account as they affect the path of power flow in substation. The reliability evaluation results of all bus configuration types in electrical substations are compared by the following indices; LOLF, LOLP, and EENS.","PeriodicalId":347166,"journal":{"name":"2014 11th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2014-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114692775","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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