Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011136
Aditya Eka Purba Sejati, N. Hariyanto, K. M. Banjar-Nahor, Fathin Saifur Rahman, R. Rahmani
In general, the design of coal-fired power plants is not designed under flexible operating conditions. This flexibility will potentially cause changes in the operating pattern of coal-fired power plants, which operate at a minimum load. This pattern of operation will lead to increased use of coal, reduce the value of thermal efficiency, and possibly reduce equipment reliability. This paper presents an analysis of the impact of the flexibility of the coal-fired plant operation on its reliability. The solution that we propose in this paper is to integrate the coal-fired plant with Battery Energy Storage (BES). On scheme, the battery will be charged in a off-peak and will be discharged when a peak-load. We present several choices of BES in this paper, to find out more about this integration. in part 1 this will focus on how the impact of integration of coal power plants with battery energy storage in terms of heat rate levels, analysis is based on the effects of changes in heat rate levels of coal power plants during the use of BES and compared when not using BES.
{"title":"Increasing Reliability of Coal-Fired Plant by Integrating Battery Energy Storage (Part 1: Heat Rate Side)","authors":"Aditya Eka Purba Sejati, N. Hariyanto, K. M. Banjar-Nahor, Fathin Saifur Rahman, R. Rahmani","doi":"10.1109/ICHVEPS47643.2019.9011136","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011136","url":null,"abstract":"In general, the design of coal-fired power plants is not designed under flexible operating conditions. This flexibility will potentially cause changes in the operating pattern of coal-fired power plants, which operate at a minimum load. This pattern of operation will lead to increased use of coal, reduce the value of thermal efficiency, and possibly reduce equipment reliability. This paper presents an analysis of the impact of the flexibility of the coal-fired plant operation on its reliability. The solution that we propose in this paper is to integrate the coal-fired plant with Battery Energy Storage (BES). On scheme, the battery will be charged in a off-peak and will be discharged when a peak-load. We present several choices of BES in this paper, to find out more about this integration. in part 1 this will focus on how the impact of integration of coal power plants with battery energy storage in terms of heat rate levels, analysis is based on the effects of changes in heat rate levels of coal power plants during the use of BES and compared when not using BES.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"1 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84061702","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 : 2019-10-01DOI: 10.1109/ichveps47643.2019.9011033
I. Sari, Lia Frisila
PT. PLN (Persero) is an electric company own by Indonesia Government. As one of the business unit in PLN, PT. PLN West Java Transmission Regional (UIT JBB) has leading role to managed 32.366 MVA in 14 Extra High Voltage Substation (GITET), 125 High Voltage Substation (GI), also 970,1 kms Extra High Voltage transmission and 2.146,9 Kms high voltage transmission spread in vast areas in Banten and Great Jakarta provinces. This fat assets has a lot of variant used in assets management activities. Since UIT JBB already certified by ISO 55001, all activities must be well managed including data assets and information. This paper will described in how UIT JBB managed data assets and information from bottom to top and the strategy to achieve the goal to provide a good quality data and accessible to all user in UIT JBB. Previously, there are lack and poor of data assets providing and how this was impacted to the planning and decision making in UIT JBB. Some improvement has been taken to minimize those impacts. One of the strategy is by measure the risk of poor data quality and also create new rules to bring dispersed information from the field to the accessible information system management. A more general concept of integrated management can therefore become attractive to implement in UIT JBB.
{"title":"Information System Management on Asset Management in PT. PLN West Java Transmission Regional","authors":"I. Sari, Lia Frisila","doi":"10.1109/ichveps47643.2019.9011033","DOIUrl":"https://doi.org/10.1109/ichveps47643.2019.9011033","url":null,"abstract":"PT. PLN (Persero) is an electric company own by Indonesia Government. As one of the business unit in PLN, PT. PLN West Java Transmission Regional (UIT JBB) has leading role to managed 32.366 MVA in 14 Extra High Voltage Substation (GITET), 125 High Voltage Substation (GI), also 970,1 kms Extra High Voltage transmission and 2.146,9 Kms high voltage transmission spread in vast areas in Banten and Great Jakarta provinces. This fat assets has a lot of variant used in assets management activities. Since UIT JBB already certified by ISO 55001, all activities must be well managed including data assets and information. This paper will described in how UIT JBB managed data assets and information from bottom to top and the strategy to achieve the goal to provide a good quality data and accessible to all user in UIT JBB. Previously, there are lack and poor of data assets providing and how this was impacted to the planning and decision making in UIT JBB. Some improvement has been taken to minimize those impacts. One of the strategy is by measure the risk of poor data quality and also create new rules to bring dispersed information from the field to the accessible information system management. A more general concept of integrated management can therefore become attractive to implement in UIT JBB.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"49 1","pages":"223-226"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85765858","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011100
Waluyo, F. Hadiatna, A. Widura, R. Maulana
This paper presents a preliminary design of IoT based monitoring system for miniature smart grid. In this case, the smart grid is the interconnection of electric sources between a solar panel and the 220 V PLN network. The main components of the monitoring and controlling system consisted of relays, inverters, charge controller, and measuring instrument. The results showed that the measured voltages between 202.8 up to 210.6 volts. Moreover, the electric current, power, and energy were also appropriately recorded.
{"title":"Design of IoT Based Monitoring System for Miniature Smart Grid","authors":"Waluyo, F. Hadiatna, A. Widura, R. Maulana","doi":"10.1109/ICHVEPS47643.2019.9011100","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011100","url":null,"abstract":"This paper presents a preliminary design of IoT based monitoring system for miniature smart grid. In this case, the smart grid is the interconnection of electric sources between a solar panel and the 220 V PLN network. The main components of the monitoring and controlling system consisted of relays, inverters, charge controller, and measuring instrument. The results showed that the measured voltages between 202.8 up to 210.6 volts. Moreover, the electric current, power, and energy were also appropriately recorded.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"109 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79083564","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}
Line current differential (LCD) relay is a kind of transmission line protection system which uses Kirchhoff Current Law as its fundamental principle. It compares measured current from two relays that installed on each substation. The two relays "talk" to each other using certain communication media, e.g. optical fiber, pilot wire, etc. Communication is one of the important components that greatly determines the reliability of the LCD relay. Without proper communication media, this relay cannot work as a protection system. No matter how sophisticated the media is, sometimes experiences communication failure. And this condition is very risky because it can lead to widespread power outage if a system failure occurs on the related transmission line. Recently, many of our transmission lines are provided LCD relay as main protection, OCR/GFR as local backup protection, and Z2/Z3 Distance relay as remote backup protection. If there is system failure on the transmission line, LCD would trip instantaneously to shutting down the line. However, if a system failure occurs when LCD communication failure, LCD would be blocked and the line would be shutting down by remote backup which has delayed for fault clearing time. It can cause more impact such as widespread power outage or equipment damage. This paper deals how to provide instantaneous protection function while LCD blocked by communication failure. This paper shows the implementation of automatic function switching to activate Z1 distance function while communication failure detected. This Z1 would operate as main protection while LCD blocked and whenever occurs a system failure on the transmission line, this protection would detect and clear fault instantaneously. Thus, widespread power outage and equipment damaged can be avoided.
{"title":"Mitigation of Communication Failures on Line Current Differential Relays by adding Automatic Function Switching Logic to Improve Protection System Reliability, Study Case in PT PLN (Persero)","authors":"Nurul Ibnu Majid, Hikmah Prasetia, Amdi Nopriansyah","doi":"10.1109/ICHVEPS47643.2019.9011117","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011117","url":null,"abstract":"Line current differential (LCD) relay is a kind of transmission line protection system which uses Kirchhoff Current Law as its fundamental principle. It compares measured current from two relays that installed on each substation. The two relays \"talk\" to each other using certain communication media, e.g. optical fiber, pilot wire, etc. Communication is one of the important components that greatly determines the reliability of the LCD relay. Without proper communication media, this relay cannot work as a protection system. No matter how sophisticated the media is, sometimes experiences communication failure. And this condition is very risky because it can lead to widespread power outage if a system failure occurs on the related transmission line. Recently, many of our transmission lines are provided LCD relay as main protection, OCR/GFR as local backup protection, and Z2/Z3 Distance relay as remote backup protection. If there is system failure on the transmission line, LCD would trip instantaneously to shutting down the line. However, if a system failure occurs when LCD communication failure, LCD would be blocked and the line would be shutting down by remote backup which has delayed for fault clearing time. It can cause more impact such as widespread power outage or equipment damage. This paper deals how to provide instantaneous protection function while LCD blocked by communication failure. This paper shows the implementation of automatic function switching to activate Z1 distance function while communication failure detected. This Z1 would operate as main protection while LCD blocked and whenever occurs a system failure on the transmission line, this protection would detect and clear fault instantaneously. Thus, widespread power outage and equipment damaged can be avoided.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"24 1","pages":"227-229"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80213980","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011139
D. Hakam, Evy Haryadi, H. Indrawan, A. Simaremare
Java Bali power system is the largest interconnected power system in Indonesia and currently still applied the regulated uniform electricity pricing. This research determines the efficient pricing of electricity across space and time in Java Bali power system. The objective of this study is to propose nodal pricing in the power system and then to calculate the economic welfare. A detailed analysis of electricity prices, nodal demand, nodal supply, transmission load flow and congestion are investigated in this study. The application of efficient pricing in the power system affects decision making in investment planning and mitigates market power. Therefore, nodal pricing implementation will be beneficial for electricity market designers and stakeholders in Indonesia.
{"title":"Economic valuation of Efficient Pricing: Case study of Java Bali Power System","authors":"D. Hakam, Evy Haryadi, H. Indrawan, A. Simaremare","doi":"10.1109/ICHVEPS47643.2019.9011139","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011139","url":null,"abstract":"Java Bali power system is the largest interconnected power system in Indonesia and currently still applied the regulated uniform electricity pricing. This research determines the efficient pricing of electricity across space and time in Java Bali power system. The objective of this study is to propose nodal pricing in the power system and then to calculate the economic welfare. A detailed analysis of electricity prices, nodal demand, nodal supply, transmission load flow and congestion are investigated in this study. The application of efficient pricing in the power system affects decision making in investment planning and mitigates market power. Therefore, nodal pricing implementation will be beneficial for electricity market designers and stakeholders in Indonesia.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"38 1","pages":"080-084"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86956628","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011047
A. Rajab, H. Andre, A. Pawawoi
This paper discusses gas production of monoesters under low thermal stresses and evaluation of fault interpretation methods to the oils. Two kinds of monoesters, namely the monoester having C=C bond and that without C=C were heated locally at the temperatures of 200, 250 and 300 °C. Three kind of fault interpretation methods, namely Key Gas, IEC ratio, and Duval Triangle methods are examined their applicability to the monoesters. The results show that the Key Gas and the IEC Ratio methods are not applicable. For the Duval Triangle, most of the tested oils are mistakenly put into the region dedicated to the fault of carbonized paper type. Therefore, the methods fail to interpret the low thermal stresses under the current experimental conditions.
{"title":"Gas Production and Fault Interpretation of Monoesters under Low Thermal Stresses","authors":"A. Rajab, H. Andre, A. Pawawoi","doi":"10.1109/ICHVEPS47643.2019.9011047","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011047","url":null,"abstract":"This paper discusses gas production of monoesters under low thermal stresses and evaluation of fault interpretation methods to the oils. Two kinds of monoesters, namely the monoester having C=C bond and that without C=C were heated locally at the temperatures of 200, 250 and 300 °C. Three kind of fault interpretation methods, namely Key Gas, IEC ratio, and Duval Triangle methods are examined their applicability to the monoesters. The results show that the Key Gas and the IEC Ratio methods are not applicable. For the Duval Triangle, most of the tested oils are mistakenly put into the region dedicated to the fault of carbonized paper type. Therefore, the methods fail to interpret the low thermal stresses under the current experimental conditions.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"129 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77081053","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011133
I. Prahastono, Rina Aimisa, Gde KM Atmajaya, N. Sinisuka, I. S. Dinata, Fajar Nursyamsi, A. Supriatna
Oil depot has the important rules in energy distribution to society as end user. Tasikmalaya oil depot has rule to distribute oil to other depots in West Java. This depot shall have good operational performance cause playing a growing and relevant role in million peoples in those provinces. On the other hand, oil depot holds a potential environmental impact that must be assess. One of the assessment methods that can be used is Life Cycle Assessment. This method uses ISO 14040 and 14044 as a standard. LCA also roles as continual improvement as a form of their consistency for environmental preservation effort. LCA in this oil depot use Kilo Liter throughput as a functional unit and has a boundary in operational depot that consist of four subsystem (receiving facility, storage, distribution and support facility) and calculating the environmental impact from energy consumption. Energy consumption data was primary data that taken on site, consist of electricity consumption on each equipment and building. The result showed that electricity consumption contributes 3.064 kg CO2 equivalent per kilo liter oil throughput.
{"title":"Calculating the Environmental Impact of Energy Consumption in the Oil Depot Using Life Cycle Assessment Method (Case Study: Oil Depot at Tasikmalaya)","authors":"I. Prahastono, Rina Aimisa, Gde KM Atmajaya, N. Sinisuka, I. S. Dinata, Fajar Nursyamsi, A. Supriatna","doi":"10.1109/ICHVEPS47643.2019.9011133","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011133","url":null,"abstract":"Oil depot has the important rules in energy distribution to society as end user. Tasikmalaya oil depot has rule to distribute oil to other depots in West Java. This depot shall have good operational performance cause playing a growing and relevant role in million peoples in those provinces. On the other hand, oil depot holds a potential environmental impact that must be assess. One of the assessment methods that can be used is Life Cycle Assessment. This method uses ISO 14040 and 14044 as a standard. LCA also roles as continual improvement as a form of their consistency for environmental preservation effort. LCA in this oil depot use Kilo Liter throughput as a functional unit and has a boundary in operational depot that consist of four subsystem (receiving facility, storage, distribution and support facility) and calculating the environmental impact from energy consumption. Energy consumption data was primary data that taken on site, consist of electricity consumption on each equipment and building. The result showed that electricity consumption contributes 3.064 kg CO2 equivalent per kilo liter oil throughput.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"9 1","pages":"350-353"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89815934","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011126
U. Khayam, M. Yunus
This paper discusses the measurement and detection of partial discharge (PD) on the metal enclosed power apparatus, mainly on the effect of the presence of holes on metal box on PD induced electromagnetic wave detected by external loop antenna. The PD testing is done with a variety of hole shapes (square hole and circle hole), hole sizes, and antenna placement. Without the hole on the metal box, the measurement sensitivity decreases due to the high level of attenuation. The presence of holes on the metal box gives a significant effect on partial discharge detection by the loop antenna sensor. The larger holes on the metal box, the better PD detected by external sensor.
{"title":"Effect of The Presence of Hole on Metal Enclosed Power Apparatus on Partial Discharge Detected by External Sensor","authors":"U. Khayam, M. Yunus","doi":"10.1109/ICHVEPS47643.2019.9011126","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011126","url":null,"abstract":"This paper discusses the measurement and detection of partial discharge (PD) on the metal enclosed power apparatus, mainly on the effect of the presence of holes on metal box on PD induced electromagnetic wave detected by external loop antenna. The PD testing is done with a variety of hole shapes (square hole and circle hole), hole sizes, and antenna placement. Without the hole on the metal box, the measurement sensitivity decreases due to the high level of attenuation. The presence of holes on the metal box gives a significant effect on partial discharge detection by the loop antenna sensor. The larger holes on the metal box, the better PD detected by external sensor.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"2008 1","pages":"287-290"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86241420","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011080
Ignatius Rendroyoko, N. Sinisuka, Deddy P. Koesrindartoto
In recent years, efforts to build electricity supplies for islands and remote areas have been carried out by developing renewable energy sources (RES) and integrated into existing electrical systems. For this reason, it is necessary to apply a method of regulating electricity supply. Unit Commitment (UC) is daily scheduling of power generation units to achieve optimization goals while still meeting various operational, environmental, and technical constraints. With a significant increase of the operation of the RES intermittent power plant in the power system, the development of the UC method becomes more necessary, to maintain system stability and resilience, and minimum operating costs. Therefore, new optimization methods need to be developed to be applied to the UC scheme for microgrid electric power systems.This paper discusses alternative optimization methods to optimize UC solutions in microgrid power systems with intermittent RES plant. In this paper, a comparison of the strengths and weaknesses of each optimization technique is discussed, with the intent and purpose of finding the most appropriate optimization technique to utilize. The problem in the UC scheme has been studied by experts using numbers of methods. The combination of mathematical techniques and stochastic / meta-heuristic techniques is proven to provide better optimization solutions. This study is aimed at optimizing UC in electric power systems with intermittent RES power plants. In particular, the power system under study is a developing electricity system, for islands or remote areas. The proposed method is the enrichment of existing optimization techniques, with additional innovations in analytical methods to improve the performance of the UC schemes applied to the microgrid system.
{"title":"A Literature Survey of Optimization Technique of Unit Commitment Implementation in Microgrid Electricity System With Renewable Energy Sources","authors":"Ignatius Rendroyoko, N. Sinisuka, Deddy P. Koesrindartoto","doi":"10.1109/ICHVEPS47643.2019.9011080","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011080","url":null,"abstract":"In recent years, efforts to build electricity supplies for islands and remote areas have been carried out by developing renewable energy sources (RES) and integrated into existing electrical systems. For this reason, it is necessary to apply a method of regulating electricity supply. Unit Commitment (UC) is daily scheduling of power generation units to achieve optimization goals while still meeting various operational, environmental, and technical constraints. With a significant increase of the operation of the RES intermittent power plant in the power system, the development of the UC method becomes more necessary, to maintain system stability and resilience, and minimum operating costs. Therefore, new optimization methods need to be developed to be applied to the UC scheme for microgrid electric power systems.This paper discusses alternative optimization methods to optimize UC solutions in microgrid power systems with intermittent RES plant. In this paper, a comparison of the strengths and weaknesses of each optimization technique is discussed, with the intent and purpose of finding the most appropriate optimization technique to utilize. The problem in the UC scheme has been studied by experts using numbers of methods. The combination of mathematical techniques and stochastic / meta-heuristic techniques is proven to provide better optimization solutions. This study is aimed at optimizing UC in electric power systems with intermittent RES power plants. In particular, the power system under study is a developing electricity system, for islands or remote areas. The proposed method is the enrichment of existing optimization techniques, with additional innovations in analytical methods to improve the performance of the UC schemes applied to the microgrid system.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"14 1","pages":"344-349"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72672869","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 : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011069
R. Zoro, Gde KM Atmajaya, Bryan Denov
Based on the outage data released by Indonesia Electricity Company (PLN), the line-outages occurred at trnasmission line in Indonesia is very high, 49% occured at 150 kV line and almost 69% in 70 kV lines all over Indonesia. This reserch was carried out at 70kV transmission line in Malang, an area located at south part of east Java, Indonesia which is mostly suffered due to lightning strikes. Transmission towers in this arew were being the easy target of lightning strikes due to their height of more than 30 meter, have only one erth wire and most of them are located on the open area. Lightning strikes to towers produced back flashover on the insulator and lead to the blackouts on the system. This research analyzes the performance of the 70kV high voltage transmission line against lightning strikes based on installed lightning protection devices. A protedction system is introduced to improve the performance of the transmission line against lightning strikes by installing Extended Mast Terminal (EMT) on the transmission tower. EMT is a lightning protection system equipped with Early Streamer Emission (ESE) as an Air Terminal to attract the lightning strikes, low inductance lightning down conductors, integrated grounding system and a panel at the bottom of the cable to record the number of lightning strikes and the peak current of lightnuing detector.
{"title":"Lightning Protection System for High Voltage Transmission Line in Indonesia","authors":"R. Zoro, Gde KM Atmajaya, Bryan Denov","doi":"10.1109/ICHVEPS47643.2019.9011069","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011069","url":null,"abstract":"Based on the outage data released by Indonesia Electricity Company (PLN), the line-outages occurred at trnasmission line in Indonesia is very high, 49% occured at 150 kV line and almost 69% in 70 kV lines all over Indonesia. This reserch was carried out at 70kV transmission line in Malang, an area located at south part of east Java, Indonesia which is mostly suffered due to lightning strikes. Transmission towers in this arew were being the easy target of lightning strikes due to their height of more than 30 meter, have only one erth wire and most of them are located on the open area. Lightning strikes to towers produced back flashover on the insulator and lead to the blackouts on the system. This research analyzes the performance of the 70kV high voltage transmission line against lightning strikes based on installed lightning protection devices. A protedction system is introduced to improve the performance of the transmission line against lightning strikes by installing Extended Mast Terminal (EMT) on the transmission tower. EMT is a lightning protection system equipped with Early Streamer Emission (ESE) as an Air Terminal to attract the lightning strikes, low inductance lightning down conductors, integrated grounding system and a panel at the bottom of the cable to record the number of lightning strikes and the peak current of lightnuing detector.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"55 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74289671","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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