2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)最新文献_第6页

Novel HVDC Spacers in GIS/GIL by Adaptively Controlling Surface Charges - Insulation Compounding Scheme 基于自适应控制表面电荷的GIS/GIL中新型高压直流间隔器——绝缘复合方案

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011050

Chuanyang Li, Bo Liu, Jiancheng Wang, R. Gong, Guan Wang, Z. Lei, D. Fabiani, Chuanjie Lin, Jun Hu

{"title":"Novel HVDC Spacers in GIS/GIL by Adaptively Controlling Surface Charges - Insulation Compounding Scheme","authors":"Chuanyang Li, Bo Liu, Jiancheng Wang, R. Gong, Guan Wang, Z. Lei, D. Fabiani, Chuanjie Lin, Jun Hu","doi":"10.1109/ICHVEPS47643.2019.9011050","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011050","url":null,"abstract":"The spacer is a challenging part of high voltage direct current (HVDC) gas-insulated switchgear (GIS) and gas- insulated transmission lines (GILs). Based on the charge adaptively controlling strategy verified by our previously published papers, this paper serves as an important step towards further industrialization of charge adaptively controlling spacers. The insulation compounding scheme based on previous researches is focused in this paper. Spacers composed of insulating regions and charge adaptive control regions with different mass fractions of nonlinear materials were prepared. The mechanical properties, as well as the DC and AC surface flashover performance of these spacers were investigated. The results show that the DC surface flashover voltage is greatly reduced using spacers with a pure insulating region and with a doped charge adaptive region. As the doping ratio of the nonlinear material in the insulating region increases, the surface flashover voltage increases remarkably. However, the mechanical stress decreases dramatically when the mass ratio of nonlinear material is beyond 35%. The different doping ratios of nonlinear materials does not make a difference in AC surface flashover voltage. However, these surface flashover values obtained by bowl shaped spacers are much more stable and higher than that of the values measured from traditional cone type spacers at AC. The results in this paper can be a key step and are helpful in further determining the preferred option of the industrial spacer that can be potentially used in HVDC GIS/GILs. Meanwhile, based on the advanced performance, the idea of the novel bowl shape has potentially possibility in the application field of AC GIS/GILs.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"55 1","pages":"268-271"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88478379","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}

引用次数: 3

Maximum Likelihood-based Technique for Accurate Estimation of Time-delay between UHF Signals Radiated from Partial Discharge Sources 基于最大似然的部分放电源超高频信号时延精确估计技术

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011120

B. Anitha, C. Koley

{"title":"Maximum Likelihood-based Technique for Accurate Estimation of Time-delay between UHF Signals Radiated from Partial Discharge Sources","authors":"B. Anitha, C. Koley","doi":"10.1109/ICHVEPS47643.2019.9011120","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011120","url":null,"abstract":"One of the useful way for localization of partial discharge (PD) sources inside any electrical substation is the use of multiple ultra-high frequency (UHF) sensors. UHF signals radiated from any PD source can travel a longer distance and can be captured by the multiple UHF sensors placed around the substations. The localization of PD sources is done primarily by calculating the time delays between the impulsive signals received at the UHF sensors.However, the time delay estimation is very challenging in the presence of interference of other Electro-Magnetic signals. In the present work, several time domain and frequency domain based techniques have been investigated and applied on several PD signals captured from the different air-insulated substation in India. Various time-domain based techniques that have been applied are the first peak (FP), cross-correlation (CC), and cumulative energy (CE). The frequency-domain based Generalized Cross Correlation (GCC) technique has also been applied with their different weighing functions such are the Phase Transform (PHAT), Smoothed Coherence Transform (SCOT), Maximum Likelihood estimator and the Eckart Filter (EF). From the experimental result, it is observed that the GCC with ML estimator provide the most suitable result across different experimental conditions.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"5 1","pages":"012-017"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81039696","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}

引用次数: 1

Diagnostic Magnetic Shunt Anomaly of Power Transformer 150/20 kV 60 MVA at Tambun Substation 淡滨变电站150/ 20kv 60mva电力变压器磁分流异常诊断

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011140

Y. Wibisana, Master Jan Roy Turnip, Dedi Roi Candra Sihombing

{"title":"Diagnostic Magnetic Shunt Anomaly of Power Transformer 150/20 kV 60 MVA at Tambun Substation","authors":"Y. Wibisana, Master Jan Roy Turnip, Dedi Roi Candra Sihombing","doi":"10.1109/ICHVEPS47643.2019.9011140","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011140","url":null,"abstract":"Power transformer is the heart of power system and critical equipment in transmission line grid. Reliability of power transformer is the most important thing in transmission system. UIT JBT (Unit Induk Transmisi Jawa Bagian Tengah) as a unit of PLN that operates and maintains the middle section of java transmission system is responsible for ensuring power system reliability. Dissolved Gas Analysis (DGA) is widely used for interpreting condition and faults diagnostic of power transformer that depend on concentrations and composition of gases in transformer’s oils. It can be used to identify the type of pending or occurring faults and estimate it’s severity that will be used to determine the appropriate action and avoid unexpected failure. Transformer 150/20 kV 60 MVA at Tambun Substation has special case, which has only been operating since 2012 but in 5 years of operation detected anomaly (infant failure). Diagnosis of defects is obtained by DGA test and the interpretation indicated thermal fault 700°C. DGA trend showed a significant increase in gas concentration was detected which was suspected due to an internal fault of the transformer. The transformer followed up with shutdown investigation, and insulation test measurement between core and frame of the transformer indicated a short circuit which is further detected as a result of the displacement of the magnetic shunt that slide and shorting the core and the frame. Further corrective action taken by on site repair.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"23 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":"79830607","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}

引用次数: 0

Study of Feasibility Planning Micro Hydro Power Plant in Kampung Mului, Paser 甘肃甘榜木瑞微型水力发电厂可行性规划研究

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011085

Rizky Monica Virgine, R. Setiabudy

引用次数: 1

Design of Solar Power Plant for Electrical Engineering Department Laboratory 太阳能电站设计电气工程系实验室

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011041

H. R. Iskandar, Eldy Darmawan, Y. Zainal, Giri Angga Setia, Naftalin Winanti, Fauzia Haz

{"title":"Design of Solar Power Plant for Electrical Engineering Department Laboratory","authors":"H. R. Iskandar, Eldy Darmawan, Y. Zainal, Giri Angga Setia, Naftalin Winanti, Fauzia Haz","doi":"10.1109/ICHVEPS47643.2019.9011041","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011041","url":null,"abstract":"Indonesia's electricity consumption is projected to increase significantly when fossil fuels run out, therefore renewable energy is used as an innovative step to meet these electricity needs. In this paper, will discuss a Photovoltaic (PV) Power Plant design proposed to meet electrical energy needs in Electrical Engineering Laboratory (EEL) of the Faculty of Engineering (FoE), Universitas Jenderal Achmad Yani (Unjani). This design is made by considering the existing laboratory load capacity, the need for solar panel units, configuration, and type of installation, the number of solar panel components, climate data, and the maximum tilt angle of the panel that can be produced for 1 year. The simulation of rooftop PV systems laboratories produce a PV Generator Power (AC grid) 31.220 kWh/year, the required area is 200 m2 with 121 units of 265 Wp solar panels, and 11 units of 2 kW inverter connected on-grid 220V/50 Hz, with a fixed tilt angle 16˚ face to the north. These results are projected to meet electricity consumption needs in the laboratory.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"33 1","pages":"145-150"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89420403","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}

引用次数: 7

Optimal Capacitor Placement For IEEE 118 Bus System By Using Genetic Algorithm 基于遗传算法的ieee118总线电容优化配置

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011111

H. Hartono, M. Azis, Y. Muharni

引用次数: 9

Radiated Emissions Anomaly Caused by High Voltage Disturbance of an Optical Network Terminal (ONT) Installation 光网络终端(ONT)装置高压干扰引起的辐射发射异常

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011147

Kiswanto, Dian Agung Nugroho

{"title":"Radiated Emissions Anomaly Caused by High Voltage Disturbance of an Optical Network Terminal (ONT) Installation","authors":"Kiswanto, Dian Agung Nugroho","doi":"10.1109/ICHVEPS47643.2019.9011147","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011147","url":null,"abstract":"Faster wireless telecommunication systems are going to be the future of Telecommunication Industry. EMC issues and natural challenges arise with its growing entry in modern customer premises equipment (CPE). Optical Network Terminal is used by PT TELKOM to deliver fixed broadband services to customer, some case Telkom’s CPE network get disturbance by lightning strikes. Faster delivered data from a device need more transmit power, this contribution provides an overview of the occurring and electromagnetic interference dominating disturbance voltage of an Optical Network Terminal (ONT) in telecommunication system. EMC measurements and EMC Engineering measurement method is introduced and applied in this study with 30 MHz – 1 GHz range frequency. The presented method covers recurring radiated emission measurements according to CISPR 22 standard. 4 kV disturbance on power supply cable by surge generator in combination with ONT installation and GTEM Cell obtaining estimation of the radiated emissions occurring during the test. The result of radiated emission test is compared between ONT with voltage disturbance attached and without it. Examination of high voltage disturbance contribution to the radiated emission measurement is presented using CISPR 22 statistic graph and emission pattern inside the test cell of GTEM.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"5 1","pages":"240-243"},"PeriodicalIF":0.0,"publicationDate":"2019-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74404539","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}

引用次数: 1

Methods for Remaining Life Prediction of Power Cable based on Partial Discharge with Regard to Loading Factor Calculation and Voltage Variation 基于负荷系数计算和电压变化的局部放电电力电缆剩余寿命预测方法

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011113

A. Zaeni, U. Khayam, Deny Viviantoro

引用次数: 2

The Influence of Silicon Rubber Cover to the Ampacity and Sagging of Overheadline 硅橡胶封面对封面容度和下垂度的影响

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011071

A. P. Purnomoadi, A. S. Alam, G. Supriyadi

引用次数: 0

Implementation of Over Current Relays with Non-Cascade Scheme on Medium Voltage Switchgear as Busbar Protection Study Case in PT PLN (Persero) UIT JBB 中压开关柜非串级过流继电器母线保护的实现——以PT PLN (Persero) UIT JBB为例

2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS) Pub Date : 2019-10-01 DOI: 10.1109/ICHVEPS47643.2019.9011089

Hedi Purwanto, Hikmah Prasetia, Idam Firdaus

{"title":"Implementation of Over Current Relays with Non-Cascade Scheme on Medium Voltage Switchgear as Busbar Protection Study Case in PT PLN (Persero) UIT JBB","authors":"Hedi Purwanto, Hikmah Prasetia, Idam Firdaus","doi":"10.1109/ICHVEPS47643.2019.9011089","DOIUrl":"https://doi.org/10.1109/ICHVEPS47643.2019.9011089","url":null,"abstract":"Busbar is the main terminal in switchgear that connecting all feeders. The highest short circuit current occurs on the busbar. Thus, it needs to be considered to provide a busbar protection system to reduce the effect by detecting and shutting down the busbar immediately whenever bus fault occurs. Mostly, this protection system doesn't installed at MV switchgear due to efficiency reason. The absence of busbar protection system on MV busbar, impact to 60 MVA 150/20 kV transformer condition. Conventional protection scheme only using delay time cascading of overcurrent relay on incoming and outgoing feeder to clearing the fault. Time delay on incoming feeder should be slower than outgoing feeder. The problem is that whenever busbar fault occurs, it would be delayed for fault clearing. Trough fault current (TFC) would flow in transformer for particular delay time and decrease health index and accelerate transformer aging. This paper deals about implementations of overcurrent relays with a non-cascade scheme on MV switchgear as busbar protection. This scheme doesn't use Kirchhoff current law principle for busbar protection. It only uses simple coordination between each relay in MV switchgear. Natural conditions are used to determine whether external or internal busbar fault. When it occurs internal fault, it can provide instantaneous clearing time. However, for external fault would be clear with delay time. By using this scheme, busbar fault can be detected and trip immediately.","PeriodicalId":6677,"journal":{"name":"2019 2nd International Conference on High Voltage Engineering and Power Systems (ICHVEPS)","volume":"22 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":"72782703","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}

引用次数: 5