Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011048
Arga Iman Malakani, Dwi Handoko Arthanto, Bernardus Galih Dwi Wicaksono, A. Purwadi
Electricity is a basic need for humans. Areas that have been electrified can improve the economy and prosperity in the area. Indonesia’s Electrification Ratio in 2018 has reached 98.05% and for Papua has the smallest electrification ratio of 81.66%. The problems faced in increasing electrification are infrastructure and distribution of power plants, especially in remote areas. Indonesia has the potential in solar resources. One solution that can be done is to build a power plant using an off-grid electricity system. Besides this, the off-grid electricity system is also influenced by geographical conditions, potential resources, and the burden that will be supplied so that technical and economic analysis needs to be done. In this paper we will discuss technical and economic analysis of the off grid system. For technical analysis used MATLAB software and economic analysis using HOMER Pro. Each case will be implemented in Pirien, Asmat Regency, Papua as a sample. Based on the results obtained, the technical analysis using MATLAB can be more comprehensive because the input data can be arranged based on the desired time. This paper also describes the Maximum Power Point Tracking algorithm, that is Perstrub and Observation Algorithm and the design of components such as DC-DC Converters, Inverters, and Batteries used in off-grid power systems.
{"title":"Study and Design of Off-Grid PV Power System in Pirien, Asmat Regency, Papua Province using MATLAB/SIMULINK","authors":"Arga Iman Malakani, Dwi Handoko Arthanto, Bernardus Galih Dwi Wicaksono, A. Purwadi","doi":"10.1109/ICHVEPS47643.2019.9011048","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011048","url":null,"abstract":"Electricity is a basic need for humans. Areas that have been electrified can improve the economy and prosperity in the area. Indonesia’s Electrification Ratio in 2018 has reached 98.05% and for Papua has the smallest electrification ratio of 81.66%. The problems faced in increasing electrification are infrastructure and distribution of power plants, especially in remote areas. Indonesia has the potential in solar resources. One solution that can be done is to build a power plant using an off-grid electricity system. Besides this, the off-grid electricity system is also influenced by geographical conditions, potential resources, and the burden that will be supplied so that technical and economic analysis needs to be done. In this paper we will discuss technical and economic analysis of the off grid system. For technical analysis used MATLAB software and economic analysis using HOMER Pro. Each case will be implemented in Pirien, Asmat Regency, Papua as a sample. Based on the results obtained, the technical analysis using MATLAB can be more comprehensive because the input data can be arranged based on the desired time. This paper also describes the Maximum Power Point Tracking algorithm, that is Perstrub and Observation Algorithm and the design of components such as DC-DC Converters, Inverters, and Batteries used in off-grid power systems.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"130 1","pages":"339-343"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74800448","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/ICHVEPS47643.2019.9011103
Totoh Abdul Matin, T. Kawashima, Y. Murakami, N. Hozumi, S. Suwarno
Previous studies have evaluated the addition effect of micro-silica filler to the insulation performance of the epoxy resin. These studies state that micro-silica fillers can improve insulation performance by reducing the activity of electrical trees. However, these studies have not yet explained why electrical tree activity can decrease. To evaluate the causes of the decrease in this electrical tree activity, the PD activity and its charge behavior need to be evaluated. In order to carry out this evaluation, our research proposes an assessment method for PD activity and its charge behavior by observing individual partial discharge waveforms sequentially. There are two types of samples used: epoxy resin without filler and with micro-silica filler. Using PD measurement circuit made, the individual PD waveform parameters such as waveform shapes, PD types, number of PDs, and charge amount were collected and compared. For the result, it was found that the decrease in electrical tree activity in the silica filler sample can be caused by several reasons such as reduced number of PD occurring, decreasing effect of material degradation due to decreasing of local electrical field, and the division of energy in one PD event into smaller energy contained in several electron avalanches.
{"title":"Observation of Partial Discharge Waveform of Electrical Treeing in Epoxy Resin with Filler","authors":"Totoh Abdul Matin, T. Kawashima, Y. Murakami, N. Hozumi, S. Suwarno","doi":"10.1109/ICHVEPS47643.2019.9011103","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011103","url":null,"abstract":"Previous studies have evaluated the addition effect of micro-silica filler to the insulation performance of the epoxy resin. These studies state that micro-silica fillers can improve insulation performance by reducing the activity of electrical trees. However, these studies have not yet explained why electrical tree activity can decrease. To evaluate the causes of the decrease in this electrical tree activity, the PD activity and its charge behavior need to be evaluated. In order to carry out this evaluation, our research proposes an assessment method for PD activity and its charge behavior by observing individual partial discharge waveforms sequentially. There are two types of samples used: epoxy resin without filler and with micro-silica filler. Using PD measurement circuit made, the individual PD waveform parameters such as waveform shapes, PD types, number of PDs, and charge amount were collected and compared. For the result, it was found that the decrease in electrical tree activity in the silica filler sample can be caused by several reasons such as reduced number of PD occurring, decreasing effect of material degradation due to decreasing of local electrical field, and the division of energy in one PD event into smaller energy contained in several electron avalanches.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"58 23 1","pages":"208-212"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72692035","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/ICHVEPS47643.2019.9011074
I. K. Nisa, I. Garniwa
The penetration of rooftop photovoltaics (PVs) in residential sector has a significant impact to the distribution system. The impact is not only on the technical sides but also on the economic sides. This study proposes Integrated Energy and Economic Model (IEEM) which integrates electricity generation, load profiles, economic assumptions and electricity regulation. It is developed by employing econometric spreadsheet program. IEEM investigates the effect of the PVs on the national electricity cost and electricity tariff. Spreadsheet calculation is used to determine the PVs energy production in Jakarta distribution system. Load profiles is obtained through data of residential customers in Jakarta distribution system. Both economic assumptions and electricity regulation are outlined based on Indonesian Government regulation. From the technical sides, PVs decreases the usage of distribution transformers to less than 80% of transformers load. The economic sides gives insight that PVs not only decreases the electricity sales and distribution business income, but also makes a long payback period on the distribution network investment. In further, the model calculation results show that the increasing of PVs has an impact on increasing the utility electricity cost, while residential electricity tariffs remained. This study can give a consideration for decision makers in state-owned utility to re-arrange their tariff structure and PVs policies for the feasibility of PVs projects in residential sector. This model can be applicable to any location by changing the generation, load profiles, relevant economic assumptions and electricity regulation.
{"title":"Integrated Energy and Economic Model for Rooftop Photovoltaics on Distribution System","authors":"I. K. Nisa, I. Garniwa","doi":"10.1109/ICHVEPS47643.2019.9011074","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011074","url":null,"abstract":"The penetration of rooftop photovoltaics (PVs) in residential sector has a significant impact to the distribution system. The impact is not only on the technical sides but also on the economic sides. This study proposes Integrated Energy and Economic Model (IEEM) which integrates electricity generation, load profiles, economic assumptions and electricity regulation. It is developed by employing econometric spreadsheet program. IEEM investigates the effect of the PVs on the national electricity cost and electricity tariff. Spreadsheet calculation is used to determine the PVs energy production in Jakarta distribution system. Load profiles is obtained through data of residential customers in Jakarta distribution system. Both economic assumptions and electricity regulation are outlined based on Indonesian Government regulation. From the technical sides, PVs decreases the usage of distribution transformers to less than 80% of transformers load. The economic sides gives insight that PVs not only decreases the electricity sales and distribution business income, but also makes a long payback period on the distribution network investment. In further, the model calculation results show that the increasing of PVs has an impact on increasing the utility electricity cost, while residential electricity tariffs remained. This study can give a consideration for decision makers in state-owned utility to re-arrange their tariff structure and PVs policies for the feasibility of PVs projects in residential sector. This model can be applicable to any location by changing the generation, load profiles, relevant economic assumptions and electricity regulation.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"9 1","pages":"108-113"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84570661","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/ICHVEPS47643.2019.9011066
B. Anggoro, Setiyawan Edi Prasetiyo, B. Halimi
Waste to Energy (WTE) or the use of waste as an energy started being used in many countries as an alternative to fossil fuel for electric energy generation process. In processing as a source of energy, waste incineration is the most common method used at this time. Bandung is a city in Indonesia, which has the large potential availability of waste, with waste production of 1120 tons / day. In this final project study, the authors analyze the use of waste in the city of Bandung as fuel for Waste power plants (PLTSa) with Steam-Organic Rankine Cycle (S-ORC) technology as the work cycle system using the software Ebsilon Professional. The analysis carried out on the use of three types of different organic working fluid for the Organic Rankine Cycle (ORC), the fluids is R245fa, iso-pentane, and R1234ze. Based on the reference, Bandung municipal waste as fuel must have a moisture 18.10% with a caloric value of 6000.75 kJ / kg, in the calculation can produce combustion gas with a temperature of 511.522 °C. From the three types of working fluid selected, will be determined the best organic fluid suitable for use in the S-ORC systems with supply fuel at the above conditions. And analysis will also be carried out on greenhouse gas emissions produced by Waste Power Plant, and comparing the level of emissions with the emissions generated from landfill.
{"title":"Analysis of Waste Power Plant With Steam-Organic Rankine Cycle (S-ORC) Technology Using R245fa, iso-pentana, and R1234ze [E] Working Fluid : Case Study Bandung City","authors":"B. Anggoro, Setiyawan Edi Prasetiyo, B. Halimi","doi":"10.1109/ICHVEPS47643.2019.9011066","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011066","url":null,"abstract":"Waste to Energy (WTE) or the use of waste as an energy started being used in many countries as an alternative to fossil fuel for electric energy generation process. In processing as a source of energy, waste incineration is the most common method used at this time. Bandung is a city in Indonesia, which has the large potential availability of waste, with waste production of 1120 tons / day. In this final project study, the authors analyze the use of waste in the city of Bandung as fuel for Waste power plants (PLTSa) with Steam-Organic Rankine Cycle (S-ORC) technology as the work cycle system using the software Ebsilon Professional. The analysis carried out on the use of three types of different organic working fluid for the Organic Rankine Cycle (ORC), the fluids is R245fa, iso-pentane, and R1234ze. Based on the reference, Bandung municipal waste as fuel must have a moisture 18.10% with a caloric value of 6000.75 kJ / kg, in the calculation can produce combustion gas with a temperature of 511.522 °C. From the three types of working fluid selected, will be determined the best organic fluid suitable for use in the S-ORC systems with supply fuel at the above conditions. And analysis will also be carried out on greenhouse gas emissions produced by Waste Power Plant, and comparing the level of emissions with the emissions generated from landfill.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"2022 1","pages":"135-139"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77673744","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/ICHVEPS47643.2019.9011119
S. Manjang, I. Kitta, A. Ikhlas
Insulating oil in distribution transformers is used as liquid insulation material and cooling winding. Distribution transformer oil from non-renewable petroleum minerals which is difficult to degrade has an impact on environmental pollution if it is unused or disposed of. This study uses corn oil from renewable natural resources for a mixture of petroleum mineral oil. The test material was made of samples from mineral transformer oil mixed with corn oil with different composition ratios, namely samples MJ0 (0: 100%); MJ20 (20: 80%); MJ40 (40: 60%); and MJ60 (60: 40%). The samples were tested for high voltage breakdown, viscosity, specific gravity and refractive index. The test results show that the mineral transformer oil mixed with corn oil to ≥40% slightly decreased in insulation strength with a voltage breakdown of 30.66 kV/2.5 mm (MJ0) to 20.93 kV/2.5 mm. Viscosity, specific gravity and refractive index showed an increase with the addition of a mixture of corn oil in mineral oil.
{"title":"Voltage Breakdown Characteristics of Transformer Mineral Oil with Varies the Composition of Corn Oil","authors":"S. Manjang, I. Kitta, A. Ikhlas","doi":"10.1109/ICHVEPS47643.2019.9011119","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011119","url":null,"abstract":"Insulating oil in distribution transformers is used as liquid insulation material and cooling winding. Distribution transformer oil from non-renewable petroleum minerals which is difficult to degrade has an impact on environmental pollution if it is unused or disposed of. This study uses corn oil from renewable natural resources for a mixture of petroleum mineral oil. The test material was made of samples from mineral transformer oil mixed with corn oil with different composition ratios, namely samples MJ0 (0: 100%); MJ20 (20: 80%); MJ40 (40: 60%); and MJ60 (60: 40%). The samples were tested for high voltage breakdown, viscosity, specific gravity and refractive index. The test results show that the mineral transformer oil mixed with corn oil to ≥40% slightly decreased in insulation strength with a voltage breakdown of 30.66 kV/2.5 mm (MJ0) to 20.93 kV/2.5 mm. Viscosity, specific gravity and refractive index showed an increase with the addition of a mixture of corn oil in mineral oil.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"14 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":"90309647","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/ICHVEPS47643.2019.9011118
K. M. Banjar-Nahor, F. Cadoux, K. Rauma, N. Hariyanto, N. Sinisuka
Nowadays, network operations, including in low voltage systems, are becoming more complex. There is a necessity to monitor the systems which could be realized using the data gathered by the smart meters. This monitoring task can be accomplished through state estimation analysis. It is hence necessary to study some factors that affect the state estimation analysis. In distribution system analysis, the unbalanced parameters of the feeders are mostly simplified with sequence networks. Shunt capacitances and grounding methods are commonly neglected. Furthermore, errors and uncertainty in measurements and power system parameters may exist. Such simplifications and imperfections are likely to affect the results of the analysis. This work covers the abovementioned issues and assesses their impact to estimation results. An AC state estimation algorithm was created in AMPL. Extensive simulations have uncovered some findings in order to obtain satisfactory state estimation in low voltage networks.
{"title":"System Modeling and Its Effect on State Estimation in Unbalanced Low Voltage Networks in the Presence of Measurement Errors","authors":"K. M. Banjar-Nahor, F. Cadoux, K. Rauma, N. Hariyanto, N. Sinisuka","doi":"10.1109/ICHVEPS47643.2019.9011118","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011118","url":null,"abstract":"Nowadays, network operations, including in low voltage systems, are becoming more complex. There is a necessity to monitor the systems which could be realized using the data gathered by the smart meters. This monitoring task can be accomplished through state estimation analysis. It is hence necessary to study some factors that affect the state estimation analysis. In distribution system analysis, the unbalanced parameters of the feeders are mostly simplified with sequence networks. Shunt capacitances and grounding methods are commonly neglected. Furthermore, errors and uncertainty in measurements and power system parameters may exist. Such simplifications and imperfections are likely to affect the results of the analysis. This work covers the abovementioned issues and assesses their impact to estimation results. An AC state estimation algorithm was created in AMPL. Extensive simulations have uncovered some findings in order to obtain satisfactory state estimation in low voltage networks.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"13 1","pages":"119-124"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77078529","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/ICHVEPS47643.2019.9011063
A. Tryollinna
PT PLN (Persero) Transmission West Java (called PLN UIT JBB) is one unit of PT PLN (Persero) which has a strategic role in the electrical business in the DKI Jakarta & Banten. UIT JBB serves mostly VVIP and Zero Down Time area, besides High-voltage Consumers and regular consumers.Because of the service performance to customers becomes the main concern for UIT JBB, the work program must also in line with these objectives. But, the problem is in the planning of the work program itself, especially when planning the asset replacement.The current replacement planning for PT PLN (Persero) is conducted by referring to the Director Decree No. 149.K/DIR/2013 about The Replacement Criteria of The Substation Equipment which is considering the technical condition, age, and risk (environmental condition). Because there are constraints in terms of the availability of data and information about the condition of the installed equipment, the attention of annual work program is only about on the equipment which has old age and anomalies. This causes a lot of equipment will be in the replacement proposal.Therefore, to improve the service performance to stakeholder, UIT JBB makes a method in prioritizing the replacement or treatment based on the asset condition and also the substation criticality. The substation criticality is made by considering on the area or consumer that supplied by the substation according to the criteria of the UIT JBB’s stakeholder. While the asset condition themselves are obtained through the result of the combination of health index and susceptibility index. Where the health index is describing the readiness of the asset which can be obtained from maintenance results, meanwhile susceptibility index is the external factors that can be affecting the vulnerability of the equipment.This paper will discuss the method used in prioritizing the work program, especially the transformer replacement. The result of the method is the priority 1 to priority 4 of the transformer in the replacement proposal which can be used to determine which transformer must be replaced first.
{"title":"Optimizing Stakeholder Management: Operational Decision Making for Transformer Replacement","authors":"A. Tryollinna","doi":"10.1109/ICHVEPS47643.2019.9011063","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011063","url":null,"abstract":"PT PLN (Persero) Transmission West Java (called PLN UIT JBB) is one unit of PT PLN (Persero) which has a strategic role in the electrical business in the DKI Jakarta & Banten. UIT JBB serves mostly VVIP and Zero Down Time area, besides High-voltage Consumers and regular consumers.Because of the service performance to customers becomes the main concern for UIT JBB, the work program must also in line with these objectives. But, the problem is in the planning of the work program itself, especially when planning the asset replacement.The current replacement planning for PT PLN (Persero) is conducted by referring to the Director Decree No. 149.K/DIR/2013 about The Replacement Criteria of The Substation Equipment which is considering the technical condition, age, and risk (environmental condition). Because there are constraints in terms of the availability of data and information about the condition of the installed equipment, the attention of annual work program is only about on the equipment which has old age and anomalies. This causes a lot of equipment will be in the replacement proposal.Therefore, to improve the service performance to stakeholder, UIT JBB makes a method in prioritizing the replacement or treatment based on the asset condition and also the substation criticality. The substation criticality is made by considering on the area or consumer that supplied by the substation according to the criteria of the UIT JBB’s stakeholder. While the asset condition themselves are obtained through the result of the combination of health index and susceptibility index. Where the health index is describing the readiness of the asset which can be obtained from maintenance results, meanwhile susceptibility index is the external factors that can be affecting the vulnerability of the equipment.This paper will discuss the method used in prioritizing the work program, especially the transformer replacement. The result of the method is the priority 1 to priority 4 of the transformer in the replacement proposal which can be used to determine which transformer must be replaced first.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"6 1","pages":"067-071"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85196731","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/ICHVEPS47643.2019.9011141
Giri Angga Setia, Gibson HM Sianipar, Kukuh Samudra, Fauzia Haz, Naftalin Winanti, H. R. Iskandar
The power flow method in distribution system has its own challenges attributable to its unique characteristics. Several methods have been developed to achieve a simple, fast, and precise result. One of the method is Backward-Forward Sweep (BFS) which has simple characteristic to implement in radial distribution systems. The method was improved using a new data structure and implemented in an unbalanced load with a variety of model variations. The test referred to 37 bus of IEEE radial distribution system and compare to the network without load model variation or assume all PQ load. The result shows that both performances have equally good convergence but much faster in timing computation and larger of voltage magnitude with load model variation.
{"title":"Implementation of Backward-Forward Sweep Method on Load Model Variation of Distribution Systems","authors":"Giri Angga Setia, Gibson HM Sianipar, Kukuh Samudra, Fauzia Haz, Naftalin Winanti, H. R. Iskandar","doi":"10.1109/ICHVEPS47643.2019.9011141","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011141","url":null,"abstract":"The power flow method in distribution system has its own challenges attributable to its unique characteristics. Several methods have been developed to achieve a simple, fast, and precise result. One of the method is Backward-Forward Sweep (BFS) which has simple characteristic to implement in radial distribution systems. The method was improved using a new data structure and implemented in an unbalanced load with a variety of model variations. The test referred to 37 bus of IEEE radial distribution system and compare to the network without load model variation or assume all PQ load. The result shows that both performances have equally good convergence but much faster in timing computation and larger of voltage magnitude with load model variation.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"44 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":"90498697","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/ICHVEPS47643.2019.9011096
Yusran, Ahmad Ikhsan
The inverter using for power supply provides constant voltage, current and frequency generation advantage although there are changes in the load. However, inverter has weakness too. It will generate large harmonic. To get a high efficiency from an inverter, a sinusoidal voltage output is needed and total harmonic distortion (THD) is minimized. Several factors influence the harmonic magnitude on 1 phase inverter, namely load type and presence of filter. This study discussed about simulation of 1 phase inverter with and without LC filters, using R and RL series load type against voltage (V) and current (I) THD. The study results with LC filter and series RL load indicated THD reduction. The LC filter installation did not only affects harmonic reduction only but also output voltage and current of load.
{"title":"Simulation Of Filter And Load Influence On Single Phase Inverter Against Voltage And Current Harmonic","authors":"Yusran, Ahmad Ikhsan","doi":"10.1109/ICHVEPS47643.2019.9011096","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011096","url":null,"abstract":"The inverter using for power supply provides constant voltage, current and frequency generation advantage although there are changes in the load. However, inverter has weakness too. It will generate large harmonic. To get a high efficiency from an inverter, a sinusoidal voltage output is needed and total harmonic distortion (THD) is minimized. Several factors influence the harmonic magnitude on 1 phase inverter, namely load type and presence of filter. This study discussed about simulation of 1 phase inverter with and without LC filters, using R and RL series load type against voltage (V) and current (I) THD. The study results with LC filter and series RL load indicated THD reduction. The LC filter installation did not only affects harmonic reduction only but also output voltage and current of load.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"147 Pt 7 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":"84070677","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/ICHVEPS47643.2019.9011076
S. Thakur, R. Sarathi
In the present study, an attempt has been made to understand the impact of the addition of nanoparticles in natural ester oil (nanofluid) on various electro-chemical aspects. In order to stabilize the nanofluid, Cetyl Trimethyl Ammonium Bromide (CTAB) has been used as a surfactant. Various electrical and chemical analysis of nanofluid has been conducted. To analyse the impact of presence of nanoparticles on resistance to electrical stress, corona ageing of oil samples has been carried out. Results indicate higher corona inception voltage (CIV) and lesser window of discharge under phase resolved partial discharge (PRPD) studies in case of stabilized nanofluid. Impact of variation of frequency and addition of harmonics was also analyzed to understand effect of degradation of power supply quality on dielectric properties of oil. It was observed that there is negligible effect of supply voltage frequency for all the samples, whereas a significant decrease was observed in CIV on addition of harmonics. Apart from visual changes, the results acquired from viscosity, turbidity, UV-vis analysis and fluorescence spectroscopy indicates that presence of nanoparticles act as an ageing barrier and helps enhance the lifetime of the insulation.
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