Pub Date : 2017-03-01DOI: 10.1109/IEECON.2017.8075802
Siriruch Cheapanich, Chan Anyapo, P. Intani
This paper presents Series-Parallel Topology (SP) of magnetic coupling system for use in Wireless Power Transfer (WPT) applications. Configuration of the system is composed of rectifier circuit, inverter circuit and resonance circuit. Full bridge inverter circuit is powered by rectifier and its output is connected to the LC series resonant circuit. Moreover, the LC parallel circuit with resistance is serve as load of the topology. Electric equivalent circuit model is use to describe PS which yields reflected voltage, primary and secondary current and impedance of the system. The theory of the system is verified using an experimental setup connected to a circular primary coil and secondary coil. Various experiments are conducted for difference distance, arrangement, frequency, angle, and diameter. The analysis compares the efficiency of SP topology and its results are reported.
{"title":"Study of wireless power transfer using series-parallel topology","authors":"Siriruch Cheapanich, Chan Anyapo, P. Intani","doi":"10.1109/IEECON.2017.8075802","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075802","url":null,"abstract":"This paper presents Series-Parallel Topology (SP) of magnetic coupling system for use in Wireless Power Transfer (WPT) applications. Configuration of the system is composed of rectifier circuit, inverter circuit and resonance circuit. Full bridge inverter circuit is powered by rectifier and its output is connected to the LC series resonant circuit. Moreover, the LC parallel circuit with resistance is serve as load of the topology. Electric equivalent circuit model is use to describe PS which yields reflected voltage, primary and secondary current and impedance of the system. The theory of the system is verified using an experimental setup connected to a circular primary coil and secondary coil. Various experiments are conducted for difference distance, arrangement, frequency, angle, and diameter. The analysis compares the efficiency of SP topology and its results are reported.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"68 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":"127177364","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.2017.8075759
Charnon Chupong, B. Plangklang
Home energy monitoring system has importance rule in home energy management. Many reports show that it has effectiveness for reducing energy consumption in home. But in medium term and long term of using home energy monitoring system there are some report show the rapidly dismiss of energy saving effective because of user do not pay attention anymore. For improve the traditional home energy monitoring system there are three concepts should be applied to the systems, 1) the system must be a learning tool not just a monitoring tool, 2) the system should be tailored made for individual users and 3) users should use less effort to dealing with the system. This article applied these concepts to home energy monitoring system and create an application to forecasting the user's electricity bill. The system has applications programming interface (API) that allow users to create applications upon their requirements. From API we have create an application to forecasting the user's electricity bill that report to user via email daily, user have less effort to receive and translate the information. And from that daily report user can learn of how their behaviors or their measures effect the electricity cost. The accuracy of electricity bill forecasting application was tested by comparing the forecast cost and actual cost and found 96% of accuracy, the result is highly acceptable.
{"title":"Electricity bill forecasting application by home energy monitoring system","authors":"Charnon Chupong, B. Plangklang","doi":"10.1109/IEECON.2017.8075759","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075759","url":null,"abstract":"Home energy monitoring system has importance rule in home energy management. Many reports show that it has effectiveness for reducing energy consumption in home. But in medium term and long term of using home energy monitoring system there are some report show the rapidly dismiss of energy saving effective because of user do not pay attention anymore. For improve the traditional home energy monitoring system there are three concepts should be applied to the systems, 1) the system must be a learning tool not just a monitoring tool, 2) the system should be tailored made for individual users and 3) users should use less effort to dealing with the system. This article applied these concepts to home energy monitoring system and create an application to forecasting the user's electricity bill. The system has applications programming interface (API) that allow users to create applications upon their requirements. From API we have create an application to forecasting the user's electricity bill that report to user via email daily, user have less effort to receive and translate the information. And from that daily report user can learn of how their behaviors or their measures effect the electricity cost. The accuracy of electricity bill forecasting application was tested by comparing the forecast cost and actual cost and found 96% of accuracy, the result is highly acceptable.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"74 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":"127349849","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.2017.8075795
E. Lerch, D. Audring, C. N. Mau, Nguyen Duc Ninh, N. Cuong, Nguyen The Van
The National Load Dispatch Centre of Electricity Viet Nam (EVNNLDC) and Siemens PTI investigated the stability of the electrical 500/220 kV transportation system of Viet Nam. The general scope of the investigations is to improve the stability of the Viet Nam power system and to give the EVNNLDC staff the capability to decide how to deal with expected stability challenges in the future, which are related to the very fast growth of the system. Rapid system grows leads to a very high demand of power transmission from North to South. This was investigated by stability studies of interconnected power system with neighboring countries. These investigations are performed in close cooperation and coordination with the EVNNLDC project team. This important project includes data collection, measurement, model validation and investigation of relevant stability phenomena as well as training of the EVNNLDC staff. Generally the power system of Viet Nam has good voltage and dynamic stability. The main problems are related to the longitudinal system with more power generation in the North and Center, especially hydro power, and load centers in the South of Viet Nam. Faults on the power transmission system from North to South risks the stability of the entire system due to a high power transfer from North to South and high loading of the 500 kV backbone. An additional problem is the weak connection to Cambodia power system which leads to inter area oscillations mode. Therefore, strengthening the power transfer capability by new 500kV lines or HVDC connection and balancing the power generation across the country will solve many challenges. Other countermeasures, such as wide area load shedding, PSS tuning and correct SVC placement will improve and stabilize the power system as well. Primary frequency reserve should be increased.
{"title":"Enhancing the stability of vietnamese power system — From theory to practical","authors":"E. Lerch, D. Audring, C. N. Mau, Nguyen Duc Ninh, N. Cuong, Nguyen The Van","doi":"10.1109/IEECON.2017.8075795","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075795","url":null,"abstract":"The National Load Dispatch Centre of Electricity Viet Nam (EVNNLDC) and Siemens PTI investigated the stability of the electrical 500/220 kV transportation system of Viet Nam. The general scope of the investigations is to improve the stability of the Viet Nam power system and to give the EVNNLDC staff the capability to decide how to deal with expected stability challenges in the future, which are related to the very fast growth of the system. Rapid system grows leads to a very high demand of power transmission from North to South. This was investigated by stability studies of interconnected power system with neighboring countries. These investigations are performed in close cooperation and coordination with the EVNNLDC project team. This important project includes data collection, measurement, model validation and investigation of relevant stability phenomena as well as training of the EVNNLDC staff. Generally the power system of Viet Nam has good voltage and dynamic stability. The main problems are related to the longitudinal system with more power generation in the North and Center, especially hydro power, and load centers in the South of Viet Nam. Faults on the power transmission system from North to South risks the stability of the entire system due to a high power transfer from North to South and high loading of the 500 kV backbone. An additional problem is the weak connection to Cambodia power system which leads to inter area oscillations mode. Therefore, strengthening the power transfer capability by new 500kV lines or HVDC connection and balancing the power generation across the country will solve many challenges. Other countermeasures, such as wide area load shedding, PSS tuning and correct SVC placement will improve and stabilize the power system as well. Primary frequency reserve should be increased.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"6 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":"132460513","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.2017.8075786
Komsan Wisawato, Aumnad Phdungsilp
The Discovery Learning Libraries of Bangkok Metropolitan Administration have been examined in terms of energy performance. There are eight libraries with the same shape but located in different districts. The average energy intensity of the building is 183.03 kWh/m2. EnergyPlus was used to simulate the energy performance of the buildings, to examine the energy saving measures and to assess the energy savings. This study found that the air-conditioning system utilizes the highest amount of energy (52.44%), and followed by lighting (32.10%) and others (15.46%). The 16 energy saving measures were proposed and examined based on building energy simulation model. The results show that the 16 measures are significantly reduced the energy intensity as well as CO2 emissions. The results of the economic assessment showed that five measures are attractive options in terms of NVP, IRR and DPP. The sixth measure (3+1) is the most appropriate manner, whether NPV, IRR and payback period. However, the measures 1, 10, 11 and 13 are attractive options in action.
{"title":"Analysis of energy performance improvements and economic impacts for discovery learning libraries of Bangkok metropolitan administration","authors":"Komsan Wisawato, Aumnad Phdungsilp","doi":"10.1109/IEECON.2017.8075786","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075786","url":null,"abstract":"The Discovery Learning Libraries of Bangkok Metropolitan Administration have been examined in terms of energy performance. There are eight libraries with the same shape but located in different districts. The average energy intensity of the building is 183.03 kWh/m2. EnergyPlus was used to simulate the energy performance of the buildings, to examine the energy saving measures and to assess the energy savings. This study found that the air-conditioning system utilizes the highest amount of energy (52.44%), and followed by lighting (32.10%) and others (15.46%). The 16 energy saving measures were proposed and examined based on building energy simulation model. The results show that the 16 measures are significantly reduced the energy intensity as well as CO2 emissions. The results of the economic assessment showed that five measures are attractive options in terms of NVP, IRR and DPP. The sixth measure (3+1) is the most appropriate manner, whether NPV, IRR and payback period. However, the measures 1, 10, 11 and 13 are attractive options in action.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"59 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":"131074982","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.2017.8075727
B. Chainok, S. Tunyasrirut, S. Wangnipparnto, W. Permpoonsinsup
Renewable energy is clean and effectively infinite. Wind is as sources of sustainable energy. Accessing wind power, it can reduce electric cost for urban building. Wind power generates electricity by converting kinetic energy in wind to generate electricity. In this paper, wind energy is measured on urban building in Bangkok at Pathumwan Institute of Technology (PIT) which is the height from the ground at 25 meters. Approximating a wind power, the weather data consists of wind speed, wind direction, temperature and humidity. The datasets are collected in a minute and converted into database system (PITWeatherDB). Artificial Neural Network (ANN) has been applied to estimate the potential wind energy in short-term. The performances of ANN are considered by mean square error (MSE) and the correlation between ANN output and observed data from PITWeatherDB are measured. The experimental results show that the topology of six neuron nodes in input layer, ten neuron nodes in hidden layer and a neuron node output is trained by Levenberg–Marquardt algorithm. It has high correlation and minimum MSE.
{"title":"Artificial neural network model for wind energy on urban building in Bangkok","authors":"B. Chainok, S. Tunyasrirut, S. Wangnipparnto, W. Permpoonsinsup","doi":"10.1109/IEECON.2017.8075727","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075727","url":null,"abstract":"Renewable energy is clean and effectively infinite. Wind is as sources of sustainable energy. Accessing wind power, it can reduce electric cost for urban building. Wind power generates electricity by converting kinetic energy in wind to generate electricity. In this paper, wind energy is measured on urban building in Bangkok at Pathumwan Institute of Technology (PIT) which is the height from the ground at 25 meters. Approximating a wind power, the weather data consists of wind speed, wind direction, temperature and humidity. The datasets are collected in a minute and converted into database system (PITWeatherDB). Artificial Neural Network (ANN) has been applied to estimate the potential wind energy in short-term. The performances of ANN are considered by mean square error (MSE) and the correlation between ANN output and observed data from PITWeatherDB are measured. The experimental results show that the topology of six neuron nodes in input layer, ten neuron nodes in hidden layer and a neuron node output is trained by Levenberg–Marquardt algorithm. It has high correlation and minimum MSE.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"29 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":"134155526","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.2017.8075749
M. Alvarez‐Herault, B. Raison, V. Vai, L. Bun
This paper address a study of Low-Voltage (LV) distribution system composed by decentralized PV-BES and centralized BES in developing country. The purposes of work is to size the PV-BES which connected into grid. Genetic Algorithm (GA) optimization solver in MATLAB has been employed to size the maximum PV penetration and minimum BES of decentralization according to PV and load curves. A sizing strategy is developed to determine a centralized BES capacity at MV/LV substation. The centralized BES here will charge an energy while decentralized PV-BES output is higher than consumptions and it will be idle/discharged when the decentralized PV-BES output is equal or lower than consumptions. The simulation results achieved on a test system confirm a helpfulness of PV and BES integrated into LV distribution systems.
{"title":"Study of low-voltage distribution system with decentralized PV-BES and centralized BES for rural village in developing country","authors":"M. Alvarez‐Herault, B. Raison, V. Vai, L. Bun","doi":"10.1109/IEECON.2017.8075749","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075749","url":null,"abstract":"This paper address a study of Low-Voltage (LV) distribution system composed by decentralized PV-BES and centralized BES in developing country. The purposes of work is to size the PV-BES which connected into grid. Genetic Algorithm (GA) optimization solver in MATLAB has been employed to size the maximum PV penetration and minimum BES of decentralization according to PV and load curves. A sizing strategy is developed to determine a centralized BES capacity at MV/LV substation. The centralized BES here will charge an energy while decentralized PV-BES output is higher than consumptions and it will be idle/discharged when the decentralized PV-BES output is equal or lower than consumptions. The simulation results achieved on a test system confirm a helpfulness of PV and BES integrated into LV distribution systems.","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":"130999658","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.2017.8075883
Chaipichit Cumpim, R. Punchalard
In this paper, the inverse distance weighting (IDW) is utilized in order to restore contaminated images which are corrupted by the salt-and-pepper noise (SPN). Our method consists of three steps. The first step, the noise candidate pixels are identified by the adaptive median filter. For the second step, the noisy image is divided into many sub-windows. The last step, for each sub-window from previous step, the IDW is applied to calculate the new pixel values that use the neighbour uncorrupted pixels in each sub-region. The results of experiments demonstrate that the proposed technique is better performance than the existing methods.
{"title":"Sub-window inverse distance weighting method for removing salt-and-pepper noise","authors":"Chaipichit Cumpim, R. Punchalard","doi":"10.1109/IEECON.2017.8075883","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075883","url":null,"abstract":"In this paper, the inverse distance weighting (IDW) is utilized in order to restore contaminated images which are corrupted by the salt-and-pepper noise (SPN). Our method consists of three steps. The first step, the noise candidate pixels are identified by the adaptive median filter. For the second step, the noisy image is divided into many sub-windows. The last step, for each sub-window from previous step, the IDW is applied to calculate the new pixel values that use the neighbour uncorrupted pixels in each sub-region. The results of experiments demonstrate that the proposed technique is better performance than the existing methods.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"62 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":"133724205","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.2017.8075788
J. Singhasivanon, C. Manop, N. Pattanadech, N. Jirasuwankul
Electric cable is an important part of utility power and distribution system. In order to keep the system operation safely and reliable, acceptance testing for cable is necessary not only in-service but also manufacturing process. This paper proposes a novel testing technique which is able to classify the difference between normal and defective low voltage XLPE cable, namely polarization and depolarization current technique (PDC). In this study, PDC testing of low voltage XLPE cable was performed comparatively among five different cases: cable contaminated with a piece of paper, case 2 : cable contaminated with a piece of plastic, case 3 : cable contaminated with grease, case 4 : cable contaminated with a piece of copper, and case 5 : eccentric conductor cable. With environmental control of the testing process, the test results show the polarization current of the defective contaminated cable with copper is higher than that of the regular one, whereas it is lower than that of the defective one with paper, plastic and grease. It is also found that there was indistinctive of PDC in case of copper contaminated and eccentric conductor cable.
{"title":"The classification of regular and defected low voltage XLPE cable by using polarization and depolarization current method","authors":"J. Singhasivanon, C. Manop, N. Pattanadech, N. Jirasuwankul","doi":"10.1109/IEECON.2017.8075788","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075788","url":null,"abstract":"Electric cable is an important part of utility power and distribution system. In order to keep the system operation safely and reliable, acceptance testing for cable is necessary not only in-service but also manufacturing process. This paper proposes a novel testing technique which is able to classify the difference between normal and defective low voltage XLPE cable, namely polarization and depolarization current technique (PDC). In this study, PDC testing of low voltage XLPE cable was performed comparatively among five different cases: cable contaminated with a piece of paper, case 2 : cable contaminated with a piece of plastic, case 3 : cable contaminated with grease, case 4 : cable contaminated with a piece of copper, and case 5 : eccentric conductor cable. With environmental control of the testing process, the test results show the polarization current of the defective contaminated cable with copper is higher than that of the regular one, whereas it is lower than that of the defective one with paper, plastic and grease. It is also found that there was indistinctive of PDC in case of copper contaminated and eccentric conductor cable.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"105 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":"131989687","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.2017.8075755
T. Aihara
This paper deals with characteristic analysis of the equipment which generates electricity by electromagnetic induction phenomena using nonlinear resonance when a permanent magnet passes into magnetic field. If the vibrator is manufactured by a permanent magnet, the vibrator of equipment is floated in air by repulsive force which is caused between the floating magnet and the magnet fixed at lower end of hollow cylinder. Then, the vibrator generates electricity from the motion of period excitation by displacement for the hollow cylinder. In order to clarify the effectiveness of the nonlinear resonance type generator, the vibration experiment was carried out in comparison with the conventional linear type resonance generator. As a result, in the nonlinear resonance generator, two resonance regions appeared in the excitation frequency band of 0 to 18 Hz, indicating that a large amount of power generation can be obtained in the wide excitation frequency band. Moreover, in order to predict the amount of power generation, numerical calculations for forced vibrations in a repulsive-force magnetically-levitated system with a single vertical degree of freedom was carried out.
{"title":"Characteristic analysis of electrical generator using nonlinear resonance phenomena","authors":"T. Aihara","doi":"10.1109/IEECON.2017.8075755","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075755","url":null,"abstract":"This paper deals with characteristic analysis of the equipment which generates electricity by electromagnetic induction phenomena using nonlinear resonance when a permanent magnet passes into magnetic field. If the vibrator is manufactured by a permanent magnet, the vibrator of equipment is floated in air by repulsive force which is caused between the floating magnet and the magnet fixed at lower end of hollow cylinder. Then, the vibrator generates electricity from the motion of period excitation by displacement for the hollow cylinder. In order to clarify the effectiveness of the nonlinear resonance type generator, the vibration experiment was carried out in comparison with the conventional linear type resonance generator. As a result, in the nonlinear resonance generator, two resonance regions appeared in the excitation frequency band of 0 to 18 Hz, indicating that a large amount of power generation can be obtained in the wide excitation frequency band. Moreover, in order to predict the amount of power generation, numerical calculations for forced vibrations in a repulsive-force magnetically-levitated system with a single vertical degree of freedom was carried out.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"100 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":"132293603","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.2017.8075791
Nuruddin Hama, W. Kanokbannakorn, S. Sirisukprasert
This paper evaluates the effects of voltage fluctuation in a micro grid. The micro grid is modeled and simulated using the DIgSILENT software. The voltage flicker due to the variation of power productions from renewable sources in microgrid during off-grid and grid-connected mode are presented. The results indicate that the main sources of voltage fluctuation in the studied micro grid are PV and wind generations. The situation becomes worse when the microgrid is operated in off-grid mode. The renewable sources can improve voltage profiles in some cases.
{"title":"An evaluation of voltage variation and flicker severity in micro grid","authors":"Nuruddin Hama, W. Kanokbannakorn, S. Sirisukprasert","doi":"10.1109/IEECON.2017.8075791","DOIUrl":"https://doi.org/10.1109/IEECON.2017.8075791","url":null,"abstract":"This paper evaluates the effects of voltage fluctuation in a micro grid. The micro grid is modeled and simulated using the DIgSILENT software. The voltage flicker due to the variation of power productions from renewable sources in microgrid during off-grid and grid-connected mode are presented. The results indicate that the main sources of voltage fluctuation in the studied micro grid are PV and wind generations. The situation becomes worse when the microgrid is operated in off-grid mode. The renewable sources can improve voltage profiles in some cases.","PeriodicalId":196081,"journal":{"name":"2017 International Electrical Engineering Congress (iEECON)","volume":"580 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":"132704089","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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