Pub Date : 2019-10-01DOI: 10.1109/ICHVEPS47643.2019.9011110
D. C. Huynh, Thanh H. Truong, A. Truong, M. Dunnigan
This paper proposes a novel application of an improved cuckoo search (ICS) algorithm for locating faults on distributed parameter transmission lines of a power system. Fault types discussed are three line faults (L-L-L), three lines to ground faults (L-L-L-G), double line faults (L-L), double lines to ground faults (L-L-G) and single line to ground faults (L-G). Numerical results have been demonstrated that the ICS algorithm is efficient in locating faults on the distributed parameter transmission lines of the power system, as well as achieve satisfactory performances. Additionally, the results of using the ICS algorithm are also compared with those of using other existing algorithms showing the superiority of the proposed algorithm in the fault location application.
{"title":"Development of Fault Location for Distributed Parameter Transmission Lines of a Power System","authors":"D. C. Huynh, Thanh H. Truong, A. Truong, M. Dunnigan","doi":"10.1109/ICHVEPS47643.2019.9011110","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011110","url":null,"abstract":"This paper proposes a novel application of an improved cuckoo search (ICS) algorithm for locating faults on distributed parameter transmission lines of a power system. Fault types discussed are three line faults (L-L-L), three lines to ground faults (L-L-L-G), double line faults (L-L), double lines to ground faults (L-L-G) and single line to ground faults (L-G). Numerical results have been demonstrated that the ICS algorithm is efficient in locating faults on the distributed parameter transmission lines of the power system, as well as achieve satisfactory performances. Additionally, the results of using the ICS algorithm are also compared with those of using other existing algorithms showing the superiority of the proposed algorithm in the fault location application.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"122 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":"85643551","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/ICHVEPS47643.2019.9011054
S. M. Ilman, A. Dahono, Muhammad Aji K. Prihambodo, Bintang Antares Y. Putra, A. Rizqiawan, P. Dahono
This paper proposes a control method for the modified dc-dc Cuk converter. The proposed modified dc-dc Cuk converter has an advantage compared to the conventional dc-dc Cuk converter. The output voltage polarity of this proposed converter is not reversed as in the conventional dc-dc Cuk converter, while the input and output currents are continuous similar to the conventional dc-dc Cuk converter. To control the proposed converter, a simple double loop controller is used. The outer loop controller is controlling the output voltage and the inner loop controller is controlling the inductor current. The inner loop and the outer loop are designed as propotional-integral (PI) control. The analytical approach for designing the control scheme is conducted by linearizing the small-signal model of the proposed converter to form the inductor current and output voltage transfer functions. These transfer functions will be analyzed by using phase and gain margin aproach to obtain the control parameters (Kp, Ki, and Ti). Simulated and experimental results are included to show the validity of the proposed concept.
{"title":"Analysis and Control of Modified DC-DC Cuk Converter","authors":"S. M. Ilman, A. Dahono, Muhammad Aji K. Prihambodo, Bintang Antares Y. Putra, A. Rizqiawan, P. Dahono","doi":"10.1109/ICHVEPS47643.2019.9011054","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011054","url":null,"abstract":"This paper proposes a control method for the modified dc-dc Cuk converter. The proposed modified dc-dc Cuk converter has an advantage compared to the conventional dc-dc Cuk converter. The output voltage polarity of this proposed converter is not reversed as in the conventional dc-dc Cuk converter, while the input and output currents are continuous similar to the conventional dc-dc Cuk converter. To control the proposed converter, a simple double loop controller is used. The outer loop controller is controlling the output voltage and the inner loop controller is controlling the inductor current. The inner loop and the outer loop are designed as propotional-integral (PI) control. The analytical approach for designing the control scheme is conducted by linearizing the small-signal model of the proposed converter to form the inductor current and output voltage transfer functions. These transfer functions will be analyzed by using phase and gain margin aproach to obtain the control parameters (Kp, Ki, and Ti). Simulated and experimental results are included to show the validity of the proposed concept.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"53 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":"73570848","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/ICHVEPS47643.2019.9011116
Bryan Denov, Ilham Hendratama, R. Zoro
Lightning phenomenon in Indonesia draws attention of a lot of lightning protection engineer because of its high annual lightning flash density which has the different lightning characteristic compare to sub-tropical lightning. Most of the oil and gas companies adopt the sub-tropical lightning characteristic for the protection of their facilities such as IEC, NFPA, etc. and these standards are applied by companies, consultants and engineers to many structures and facilities in Indonesia. Due to these tropical weather condition, tanks and refinery are not inherently self-protected against lightning direct strikes, they need additional protection to prevent direct strike to tank's metal skin, breather valve at the top of tanks and automatic tank gauging (ATG). Statistically, almost every year the tank is hit by lightning in Indonesia and burn out. An innovation technology calls extended mast terminal (EMT) and free-standing mast (FSM) are used to protect tanks and refinery from lightning direct strikes. A tank was directly hit by lightning and burn out in PT Pertamina EP Asset 5 Sangasanga area at East Kalimantan since in-proper lightning protection system was applied. It has been observed and analyzed that not only need the additional protection but proper additional lightning protection for tanks and refinery is needed.
{"title":"Lightning Protection System of Oil Storage Tank In Tropical Country","authors":"Bryan Denov, Ilham Hendratama, R. Zoro","doi":"10.1109/ICHVEPS47643.2019.9011116","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011116","url":null,"abstract":"Lightning phenomenon in Indonesia draws attention of a lot of lightning protection engineer because of its high annual lightning flash density which has the different lightning characteristic compare to sub-tropical lightning. Most of the oil and gas companies adopt the sub-tropical lightning characteristic for the protection of their facilities such as IEC, NFPA, etc. and these standards are applied by companies, consultants and engineers to many structures and facilities in Indonesia. Due to these tropical weather condition, tanks and refinery are not inherently self-protected against lightning direct strikes, they need additional protection to prevent direct strike to tank's metal skin, breather valve at the top of tanks and automatic tank gauging (ATG). Statistically, almost every year the tank is hit by lightning in Indonesia and burn out. An innovation technology calls extended mast terminal (EMT) and free-standing mast (FSM) are used to protect tanks and refinery from lightning direct strikes. A tank was directly hit by lightning and burn out in PT Pertamina EP Asset 5 Sangasanga area at East Kalimantan since in-proper lightning protection system was applied. It has been observed and analyzed that not only need the additional protection but proper additional lightning protection for tanks and refinery is needed.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"18 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":"86683620","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/ICHVEPS47643.2019.9011095
R. Annisa, D. Samuel, Kandu Jiwandono, Gede Marteda, Gde KM Atmajaya, N. Sinisuka, I. S. Dinata, F. Leilan, T. Revina, I. D
Combined cycle steam power plant has been used in generating electricity due to its efficiency. Considering to find the impact to the environment, it requires a comprehensive study. This study is made by using LCA method from dividing the system into 4 sub system: energy preparation package, water production package, electricity production and support sub system. From the calculation, it is found that Acidification Potential (AP) is the most impact and comes from NOx as biggest resources from combustion chamber process.
{"title":"Environmental Impact Assessment of Electricity Production from Combined Cycle Steam Power Plants with Life Cycle Assessment Approach Case Study: Muara Karang Power Plant","authors":"R. Annisa, D. Samuel, Kandu Jiwandono, Gede Marteda, Gde KM Atmajaya, N. Sinisuka, I. S. Dinata, F. Leilan, T. Revina, I. D","doi":"10.1109/ICHVEPS47643.2019.9011095","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011095","url":null,"abstract":"Combined cycle steam power plant has been used in generating electricity due to its efficiency. Considering to find the impact to the environment, it requires a comprehensive study. This study is made by using LCA method from dividing the system into 4 sub system: energy preparation package, water production package, electricity production and support sub system. From the calculation, it is found that Acidification Potential (AP) is the most impact and comes from NOx as biggest resources from combustion chamber process.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"93 1","pages":"263-267"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83832432","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/ICHVEPS47643.2019.9011058
Nurcahyo Wibowo, Takafumi Mashimo, Toshihiro Takahashi, S. Suwarno
The aging defect in the pre-fabrication type XLPE cable termination still can appear at the interface between the stress-relief cone (SRC) and XLPE insulation, or the interface between SRC and the epoxy resin receptacle, even in a good installation process. It is also reported that the aging defect, i.e., deposits would be due to the deoiling of the silicone grease or oil, exuding chemical additives such as vulcanizing additives from SRC, from dismantlement observation of the decommissioned XLPE terminations. Such defects might easily ignite partial discharge (PD) combined with the formation of the delamination due to the thermal stress under its operation and finally lead to failure. In this paper, PD characteristics are discussed for the XLPE cable termination using void defect model. Then, an epoxy resin mixed with barium titanate is injected to the interface of the SRC and the XLPE cable, and its PD characteristics are investigated. Barium titanate is one of the highest ferroelectric materials and considered to be a suitable material to simulate the aging deposit. The PD characteristics are discussed from viewpoints of the number of pulses, maximum charge and PRPD pattern. From the experiment, it is revealed that barium titanate layer can affect electric field behaviour inside the SRC interface with the relatively stable condition of PD occurrence during observation, especially in the border area of semiconductive and insulation of the SRC.
{"title":"Temporal Transition of Partial Discharge Characteristics in XLPE Cable Joint Model Taking Account of Long-Term Operation and Deterioration","authors":"Nurcahyo Wibowo, Takafumi Mashimo, Toshihiro Takahashi, S. Suwarno","doi":"10.1109/ICHVEPS47643.2019.9011058","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011058","url":null,"abstract":"The aging defect in the pre-fabrication type XLPE cable termination still can appear at the interface between the stress-relief cone (SRC) and XLPE insulation, or the interface between SRC and the epoxy resin receptacle, even in a good installation process. It is also reported that the aging defect, i.e., deposits would be due to the deoiling of the silicone grease or oil, exuding chemical additives such as vulcanizing additives from SRC, from dismantlement observation of the decommissioned XLPE terminations. Such defects might easily ignite partial discharge (PD) combined with the formation of the delamination due to the thermal stress under its operation and finally lead to failure. In this paper, PD characteristics are discussed for the XLPE cable termination using void defect model. Then, an epoxy resin mixed with barium titanate is injected to the interface of the SRC and the XLPE cable, and its PD characteristics are investigated. Barium titanate is one of the highest ferroelectric materials and considered to be a suitable material to simulate the aging deposit. The PD characteristics are discussed from viewpoints of the number of pulses, maximum charge and PRPD pattern. From the experiment, it is revealed that barium titanate layer can affect electric field behaviour inside the SRC interface with the relatively stable condition of PD occurrence during observation, especially in the border area of semiconductive and insulation of the SRC.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"19 1","pages":"196-201"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83293877","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/ICHVEPS47643.2019.9011065
Wind Adiati, P. Werle, Suwarno, T. Kinkeldey
The presence of acidity in oil-impregnated paper insulation accelerate its degradation process. Currently, there are no international standards that regulate the assessment of inside insulation paper. At present, the paper condition is assumed to be represented by oil conditions. However, a recent experiment found that the partition coefficients of various acids produce very different concentrations of acid in the paper. This study will discuss the detail of the determination of the acid number of insulation paper. The samples of (Kraft) paper insulation impregnated with two different types of oils, i.e., uninhibited oil, and inhibited oil are used for the measurements. The paper samples treated in the same aging conditions; it was delivered with thermal stress at 130 °C in various aging times until 15 weeks. The investigation is carried out in 9 different methods. To distinguish one method to others, selection of measurement parameters such as the mass of the paper sample, the mass of pure water, paper sample processing, filtering process, the mass of extract and material to be titrated is done in a different way.
{"title":"Determination of Acidity in Accelerated Aged Insulating Paper Impregnated with Different Insulating Oil","authors":"Wind Adiati, P. Werle, Suwarno, T. Kinkeldey","doi":"10.1109/ICHVEPS47643.2019.9011065","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011065","url":null,"abstract":"The presence of acidity in oil-impregnated paper insulation accelerate its degradation process. Currently, there are no international standards that regulate the assessment of inside insulation paper. At present, the paper condition is assumed to be represented by oil conditions. However, a recent experiment found that the partition coefficients of various acids produce very different concentrations of acid in the paper. This study will discuss the detail of the determination of the acid number of insulation paper. The samples of (Kraft) paper insulation impregnated with two different types of oils, i.e., uninhibited oil, and inhibited oil are used for the measurements. The paper samples treated in the same aging conditions; it was delivered with thermal stress at 130 °C in various aging times until 15 weeks. The investigation is carried out in 9 different methods. To distinguish one method to others, selection of measurement parameters such as the mass of the paper sample, the mass of pure water, paper sample processing, filtering process, the mass of extract and material to be titrated is done in a different way.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"65 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":"84027248","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/ICHVEPS47643.2019.9011106
Sinanuri Surawijaya, R. A. Prasojo, Winanda Riga Tamma, I. G. Ngurah Mahendrayana, Suwarno
For many years, to determine the type of inceptive failure on power transformers, practitioners often use the Dissolved Gas Analysis (DGA) to obtain conclusions about the causes of failures. To determine the failure that occurs in the transformer, the generation of certain gases within a transformer is an incredible indicator that has been proven so far. Because of the sensitivity and accuracy in measuring gases, this technique has become standard practice in normal maintenance activities at electric utility companies. This article presents the investigation of dissolved gas analysis (DGA) of four generator step-up (GSU) transformers at geothermal power plants in Indonesia. Each transformer insulating oil data were collected during yearly routine inspection and the DGA measurements at power plants for the duration of 6 years was obtained. DGA measurement result was analyzed and processed using the dissolved gas analysis method based on IEEE C57-104 and IEC 60599 standards. The interpretation of measurement data is conducted using four methods, that is key gas, gas ratio, Duval Triangle, and The Four Gases. Rogers Ratio, Doernenburg Ratio and Gas Ratio Combination are the gas ratio methods used in this study. The results of the diagnosis of generator step-up (GSU) transformers using DGA analysis showed that all four transformers were in different conditions for each analysis method. This paper highlights the importance of keeping track of DGA history and using several DGA interpretation methods to add confidence to the result.
{"title":"Diagnosis of Power Transformer Condition using Dissolved Gas Analysis Technique: Case Studies at Geothermal Power Plants In Indonesia","authors":"Sinanuri Surawijaya, R. A. Prasojo, Winanda Riga Tamma, I. G. Ngurah Mahendrayana, Suwarno","doi":"10.1109/ICHVEPS47643.2019.9011106","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011106","url":null,"abstract":"For many years, to determine the type of inceptive failure on power transformers, practitioners often use the Dissolved Gas Analysis (DGA) to obtain conclusions about the causes of failures. To determine the failure that occurs in the transformer, the generation of certain gases within a transformer is an incredible indicator that has been proven so far. Because of the sensitivity and accuracy in measuring gases, this technique has become standard practice in normal maintenance activities at electric utility companies. This article presents the investigation of dissolved gas analysis (DGA) of four generator step-up (GSU) transformers at geothermal power plants in Indonesia. Each transformer insulating oil data were collected during yearly routine inspection and the DGA measurements at power plants for the duration of 6 years was obtained. DGA measurement result was analyzed and processed using the dissolved gas analysis method based on IEEE C57-104 and IEC 60599 standards. The interpretation of measurement data is conducted using four methods, that is key gas, gas ratio, Duval Triangle, and The Four Gases. Rogers Ratio, Doernenburg Ratio and Gas Ratio Combination are the gas ratio methods used in this study. The results of the diagnosis of generator step-up (GSU) transformers using DGA analysis showed that all four transformers were in different conditions for each analysis method. This paper highlights the importance of keeping track of DGA history and using several DGA interpretation methods to add confidence to the result.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"20 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":"77493892","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/ICHVEPS47643.2019.9011130
M. Wakhidin, Suwarno
Porcelain insulators have been used in transmission and distribution lines since long time ago. There are so many reports of system failures caused by porcelain insulator failures especially in highly polluted areas. Due to superiority in repel of contaminated solution, polymeric insulators set to replace the ceramic insulators in transmission and distribution lines. The objective of the current paper is to study effects of aging on leakage current characteristics and housing conditions of silicone rubber polymeric insulators under artificial tropical climate. Polymeric insulator sample was put in a chamber and have been exposed to ultraviolet radiation by UV lamp and penetrated in a vessel contain contaminant solution according to ANSI C-29 13-2000. The electrical properties as well as changes on the surface were investigated by measuring magnitude, waveform, THD, and cross product of leakage current. Visual observation of the hydrophobicity class of silicone rubber’s sheds was observed using a camera. To know the relations of hydrophobicity class with leakage current characteristics, samples were tested in a chamber under variety of salt-fog and pollution conditions according to IEC 60507. The housing conditions of silicone rubber polymeric insulator were investigated using SEM-EDX method. Experimental results indicated that UV radiation, corona activity, and contaminant solution are greatly affect the aging of the insulators. In addition, combination of high pollutant and humidity extremely increase the magnitude and THD of leakage current especially for sample after aging.
{"title":"Effects of Artificial Tropical Climate Aging on Insulation Performance of Silicone Rubber Polymeric Insulators","authors":"M. Wakhidin, Suwarno","doi":"10.1109/ICHVEPS47643.2019.9011130","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011130","url":null,"abstract":"Porcelain insulators have been used in transmission and distribution lines since long time ago. There are so many reports of system failures caused by porcelain insulator failures especially in highly polluted areas. Due to superiority in repel of contaminated solution, polymeric insulators set to replace the ceramic insulators in transmission and distribution lines. The objective of the current paper is to study effects of aging on leakage current characteristics and housing conditions of silicone rubber polymeric insulators under artificial tropical climate. Polymeric insulator sample was put in a chamber and have been exposed to ultraviolet radiation by UV lamp and penetrated in a vessel contain contaminant solution according to ANSI C-29 13-2000. The electrical properties as well as changes on the surface were investigated by measuring magnitude, waveform, THD, and cross product of leakage current. Visual observation of the hydrophobicity class of silicone rubber’s sheds was observed using a camera. To know the relations of hydrophobicity class with leakage current characteristics, samples were tested in a chamber under variety of salt-fog and pollution conditions according to IEC 60507. The housing conditions of silicone rubber polymeric insulator were investigated using SEM-EDX method. Experimental results indicated that UV radiation, corona activity, and contaminant solution are greatly affect the aging of the insulators. In addition, combination of high pollutant and humidity extremely increase the magnitude and THD of leakage current especially for sample after aging.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"19 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":"83090324","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/ICHVEPS47643.2019.9011059
Yurika, Suwarno, Gibson Sianipar, J. Naiborhu
Synchronous machine plays an important role in the power system. Stability of power system is concerned with the behavior of the synchronous machines after a disturbance. Modelling of synchronous generator is essential for a reliable analysis of stability performance and has practical value particularly in the stability analysis. Park’s transformation is used for mathematical model of synchronous generator. The mathematical modelling of synchronous generator depends on the determination of its parameter. In this paper mathematical modeling of synchronous generators is carried out on 9 buses and 3 machines. The detailed model or a simplified model of synchronous generator will affect the results in transient stability analysis.
{"title":"Modelling of Synchronous Generator for Transient Stability in Power System","authors":"Yurika, Suwarno, Gibson Sianipar, J. Naiborhu","doi":"10.1109/ICHVEPS47643.2019.9011059","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011059","url":null,"abstract":"Synchronous machine plays an important role in the power system. Stability of power system is concerned with the behavior of the synchronous machines after a disturbance. Modelling of synchronous generator is essential for a reliable analysis of stability performance and has practical value particularly in the stability analysis. Park’s transformation is used for mathematical model of synchronous generator. The mathematical modelling of synchronous generator depends on the determination of its parameter. In this paper mathematical modeling of synchronous generators is carried out on 9 buses and 3 machines. The detailed model or a simplified model of synchronous generator will affect the results in transient stability analysis.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"1 1 1","pages":"125-129"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83346253","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/ICHVEPS47643.2019.9011053
Yulia Erina Sari, T. I. D. K. Dewi, S. Suwarno
Transformer is not only exposed by thermal aging, which causes several disturbances during its operation. But it is also exposed by electrical faults which lead the aging or degradation of electrical insulation. Therefore, electric arc aging is one of the most important factors that should be considered. It is very important to analyze the effects of accelerated electrical aging on chemical, dielectric, and physical properties to the oil performance. This research is conducted in order to assess the performance of natural ester during electric aging. Natural ester oil was made by using palm oil. Before it is used as liquid insulation, the viscosity has been reduced through transesterification processes. A triple needle-plane was immersed to the ester oil, and high voltage alternating current was injected to create an electrical arc for several minutes. The applied voltage was varied at 16 kV, 20 kV, and 24 kV (AC) as well as the arc duration, which varied at 0, 5, 10, and 15 minutes. Several measurements such as resistivity, relative permittivity, dielectric losses, breakdown voltage, and partial discharge have been conducted to observe the aging performance. The experiment results show that longer aging duration and higher applied voltage will fasten the degradation of the oil.
{"title":"The Effects of Electrical Arc Aging on Dielectric Properties and Partial Discharge Patterns of Natural Ester from Palm Oil","authors":"Yulia Erina Sari, T. I. D. K. Dewi, S. Suwarno","doi":"10.1109/ICHVEPS47643.2019.9011053","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011053","url":null,"abstract":"Transformer is not only exposed by thermal aging, which causes several disturbances during its operation. But it is also exposed by electrical faults which lead the aging or degradation of electrical insulation. Therefore, electric arc aging is one of the most important factors that should be considered. It is very important to analyze the effects of accelerated electrical aging on chemical, dielectric, and physical properties to the oil performance. This research is conducted in order to assess the performance of natural ester during electric aging. Natural ester oil was made by using palm oil. Before it is used as liquid insulation, the viscosity has been reduced through transesterification processes. A triple needle-plane was immersed to the ester oil, and high voltage alternating current was injected to create an electrical arc for several minutes. The applied voltage was varied at 16 kV, 20 kV, and 24 kV (AC) as well as the arc duration, which varied at 0, 5, 10, and 15 minutes. Several measurements such as resistivity, relative permittivity, dielectric losses, breakdown voltage, and partial discharge have been conducted to observe the aging performance. The experiment results show that longer aging duration and higher applied voltage will fasten the degradation of the oil.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"176 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":"83783605","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：