This paper presents a novel algorithm for recovering missing data of phasor measurement units (PMUs). Due to the low-rank property of PMU data, missing measurement estimation can be formulated as a low-rank matrix-completion problem. Based on maximum-margin matrix factorization, we propose an efficient algorithm based on alternating direction method of multipliers (ADMM) for solving the matrix completion problem. Comparing to existing approaches, the proposed ADMM based algorithm does not need to estimate the rank of the target data matrix and provides better performance in computation complexity. In addition, we consider the case of measurements missing from all PMU channels and provide a strategy of reshaping the matrix which contains the received PMU data for estimation. Numerical results using PMU measurements from IEEE 68-bus power system model illustrate the effectiveness and efficiency of the proposed approaches.
{"title":"Estimate the Lost Phasor Measurement Unit Data Using Alternating Direction Multipliers Method","authors":"Mang Liao, Di Shi, Zhe Yu, Wendong Zhu, Zhiwei Wang, Yingmeng Xiang","doi":"10.1109/TDC.2018.8440469","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440469","url":null,"abstract":"This paper presents a novel algorithm for recovering missing data of phasor measurement units (PMUs). Due to the low-rank property of PMU data, missing measurement estimation can be formulated as a low-rank matrix-completion problem. Based on maximum-margin matrix factorization, we propose an efficient algorithm based on alternating direction method of multipliers (ADMM) for solving the matrix completion problem. Comparing to existing approaches, the proposed ADMM based algorithm does not need to estimate the rank of the target data matrix and provides better performance in computation complexity. In addition, we consider the case of measurements missing from all PMU channels and provide a strategy of reshaping the matrix which contains the received PMU data for estimation. Numerical results using PMU measurements from IEEE 68-bus power system model illustrate the effectiveness and efficiency of the proposed approaches.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89315427","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440264
R. Bravo
The power quality (PQ) effects of aggregated solar PV inverters has not been documents to this point. This paper presents the power quality (PQ) performance of 17 solar photovoltaic power plants (SPVPP) interconnected in to 12 different substations, 11 distribution and 1 subtransmission. The SPVPP generation nameplate ranges between 1.5MW and 12MW. First, this paper will present the typical PQ meter installation and setup. Additionally, it will provide the performance of each of the SPVPP in power quality plots. These plots will include current demand distortion (ITDD), voltage total harmonics distortion (VTHD), and solar PV plant power (P) versus time. Furthermore, it will provide a performance analysis of the SPVPP. Finally, it will offer conclusions and recommendations of this research that include what must be done for these devices to reduce their harmonics generation in the grid. The information presented in this paper can be used to develop, test, and validate computer models use for distribution or bulk system studies.
{"title":"Solar PV Power Plants Harmonics Impacts","authors":"R. Bravo","doi":"10.1109/TDC.2018.8440264","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440264","url":null,"abstract":"The power quality (PQ) effects of aggregated solar PV inverters has not been documents to this point. This paper presents the power quality (PQ) performance of 17 solar photovoltaic power plants (SPVPP) interconnected in to 12 different substations, 11 distribution and 1 subtransmission. The SPVPP generation nameplate ranges between 1.5MW and 12MW. First, this paper will present the typical PQ meter installation and setup. Additionally, it will provide the performance of each of the SPVPP in power quality plots. These plots will include current demand distortion (ITDD), voltage total harmonics distortion (VTHD), and solar PV plant power (P) versus time. Furthermore, it will provide a performance analysis of the SPVPP. Finally, it will offer conclusions and recommendations of this research that include what must be done for these devices to reduce their harmonics generation in the grid. The information presented in this paper can be used to develop, test, and validate computer models use for distribution or bulk system studies.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91111965","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440427
S. Arunprasanth, R. Kuffel, U. Annakkage, C. Karawita
Operation of VSC with weak AC systems creates challenges such as ensuring stability after disturbances and proper selection of controller parameters, need to be addressed before physical implementations. This paper investigates the effect of controller parameters on the stability of a modular multilevel converter (MMC) VSC system. It was observed that d-q controller gains have greater influence on the stability compared to phase-locked loops (PLL) gains. It is demonstrated using time-domain simulation results obtained on the real-time digital simulator (RTDS) that a set of properly tuned controller gains could ensure small and large transient stabilities of the MMC-VSC system. Moreover, the negative effect of measurement delays in instantaneous currents and voltages is analyzed by performing small-signal stability assessment. The paper concludes with useful guidelines on selecting controller parameters for an MMC-VSC system connected to weak AC networks.
{"title":"Dynamic Behaviour of VSC-HVDC Systems Under Different AC System Strengths","authors":"S. Arunprasanth, R. Kuffel, U. Annakkage, C. Karawita","doi":"10.1109/TDC.2018.8440427","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440427","url":null,"abstract":"Operation of VSC with weak AC systems creates challenges such as ensuring stability after disturbances and proper selection of controller parameters, need to be addressed before physical implementations. This paper investigates the effect of controller parameters on the stability of a modular multilevel converter (MMC) VSC system. It was observed that d-q controller gains have greater influence on the stability compared to phase-locked loops (PLL) gains. It is demonstrated using time-domain simulation results obtained on the real-time digital simulator (RTDS) that a set of properly tuned controller gains could ensure small and large transient stabilities of the MMC-VSC system. Moreover, the negative effect of measurement delays in instantaneous currents and voltages is analyzed by performing small-signal stability assessment. The paper concludes with useful guidelines on selecting controller parameters for an MMC-VSC system connected to weak AC networks.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"55 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89012297","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440438
D. Ishchenko, R. Nuqui
This paper presents a communication “bump-in-the-wire” Security Filter device connected between the digital relays and the IEC 61850 communication buses to secure digital substation communications. Security Filter authenticates and verifies the designated Ethernet packets transmitted between protection and control devices by appending a message authentication code based on symmetric cryptography, which is compliant with the new mechanisms described in IEC 61850 and suitable for embedded system implementation. A prototype development and testing on a low cost commodity embedded system has proved that Security Filter can fully protect digital substation communication against replay attacks with time delays within the range of the most stringent IEC 61580 performance class requirements. The paper also presents multimode Security Filter operation design, which provides a practical interoperable way to upgrade and secure legacy substations with minimal modification or interruption to the existing systems.
{"title":"Secure Communication of Intelligent Electronic Devices in Digital Substations","authors":"D. Ishchenko, R. Nuqui","doi":"10.1109/TDC.2018.8440438","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440438","url":null,"abstract":"This paper presents a communication “bump-in-the-wire” Security Filter device connected between the digital relays and the IEC 61850 communication buses to secure digital substation communications. Security Filter authenticates and verifies the designated Ethernet packets transmitted between protection and control devices by appending a message authentication code based on symmetric cryptography, which is compliant with the new mechanisms described in IEC 61850 and suitable for embedded system implementation. A prototype development and testing on a low cost commodity embedded system has proved that Security Filter can fully protect digital substation communication against replay attacks with time delays within the range of the most stringent IEC 61580 performance class requirements. The paper also presents multimode Security Filter operation design, which provides a practical interoperable way to upgrade and secure legacy substations with minimal modification or interruption to the existing systems.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"19 1 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89059225","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440330
A. Berscheid, Y. Makarov, Z. Hou, R. Diao, Yu Zhang, N. Samaan, Yong Yuan, Huifen Zhou
The behavior of modern power systems is becoming more stochastic and dynamic, due to the increased penetration of variable generation, demand response, new power market structure, extreme weather conditions, contingencies, and unexpected events. It is critically important to predict potential system operational issues so that grid planners and operators can take preventive actions to mitigate the impact, e.g., lack of operational reserves. In this paper, an innovative software tool is presented to assist power grid operators in a balancing authority in predicting the grid stress level over the next operating day. It periodically collects necessary information from public domain such as weather forecasts, electricity demand, and automatically estimates the stress levels on a daily basis. Advanced Neural Network and regression tree algorithms are developed as the prediction engines to achieve this goal. The tool has been tested on a few key balancing authorities and successfully predicted the growing system peak load and increased stress levels under extreme heat waves.
{"title":"An Open-Source Tool for Automated Power Grid Stress Level Prediction at Balancing Authorities","authors":"A. Berscheid, Y. Makarov, Z. Hou, R. Diao, Yu Zhang, N. Samaan, Yong Yuan, Huifen Zhou","doi":"10.1109/TDC.2018.8440330","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440330","url":null,"abstract":"The behavior of modern power systems is becoming more stochastic and dynamic, due to the increased penetration of variable generation, demand response, new power market structure, extreme weather conditions, contingencies, and unexpected events. It is critically important to predict potential system operational issues so that grid planners and operators can take preventive actions to mitigate the impact, e.g., lack of operational reserves. In this paper, an innovative software tool is presented to assist power grid operators in a balancing authority in predicting the grid stress level over the next operating day. It periodically collects necessary information from public domain such as weather forecasts, electricity demand, and automatically estimates the stress levels on a daily basis. Advanced Neural Network and regression tree algorithms are developed as the prediction engines to achieve this goal. The tool has been tested on a few key balancing authorities and successfully predicted the growing system peak load and increased stress levels under extreme heat waves.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"76 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86090467","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440238
N. Samaan, M. Elizondo, B. Vyakaranam, M. Vallem, Xinda Ke, Renke Huang, Jesse T. Holzer, S. Sridhar, Q. Nguyen, Y. Makarov, Xiangqi Zhu, Jiyu Wang, N. Lu
Transmission and distribution (T&D) standard test systems are currently defined separately, and are critical for researchers and engineers to develop and test new solutions. Growing installation of energy resources in distribution and sub-transmission systems is creating higher interactions between T&D systems. This paper proposes a standard test system to study T&D interactions for high penetration of distributed solar photovoltaic (PV) generation. The proposed test system can be used to study and propose solutions to problems such as reverse power flows from distribution to transmission and voltage control affected by PV variability. The proposed test system combines the transmission IEEE 118 bus system, with the distribution IEEE 123-node feeder. The original test systems are significantly enhanced by adding high penetration of solar PV generation with corresponding full-year 5 minute-resolution chronological data and associated power flow cases on both transmission and distribution. Conventional generation chronology is achieved by adding dispatch and unit commitment data for AC optimal power flow solutions. And chronological load data is added in both aggregated, at substation level, and disaggregated, at feeder node level, fashions. Sample applications of the data are provided highlighting voltage control challenges, and the proposed system is made available openly online [1].
{"title":"Combined Transmission and Distribution Test System to Study High Penetration of Distributed Solar Generation","authors":"N. Samaan, M. Elizondo, B. Vyakaranam, M. Vallem, Xinda Ke, Renke Huang, Jesse T. Holzer, S. Sridhar, Q. Nguyen, Y. Makarov, Xiangqi Zhu, Jiyu Wang, N. Lu","doi":"10.1109/TDC.2018.8440238","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440238","url":null,"abstract":"Transmission and distribution (T&D) standard test systems are currently defined separately, and are critical for researchers and engineers to develop and test new solutions. Growing installation of energy resources in distribution and sub-transmission systems is creating higher interactions between T&D systems. This paper proposes a standard test system to study T&D interactions for high penetration of distributed solar photovoltaic (PV) generation. The proposed test system can be used to study and propose solutions to problems such as reverse power flows from distribution to transmission and voltage control affected by PV variability. The proposed test system combines the transmission IEEE 118 bus system, with the distribution IEEE 123-node feeder. The original test systems are significantly enhanced by adding high penetration of solar PV generation with corresponding full-year 5 minute-resolution chronological data and associated power flow cases on both transmission and distribution. Conventional generation chronology is achieved by adding dispatch and unit commitment data for AC optimal power flow solutions. And chronological load data is added in both aggregated, at substation level, and disaggregated, at feeder node level, fashions. Sample applications of the data are provided highlighting voltage control challenges, and the proposed system is made available openly online [1].","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"195 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76056065","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440548
Kaige Zhu, Souma Chowdhury, Mucun Sun, Jie Zhang
Energy storage is crucial for source-side renewable energy power plants for enhancing output stability and reducing mismatch between power generation and demand. However, installing large size energy storage systems for renewable energy plants may not be economic, due to high capital cost and ever-increasing human resources and maintenance cost. As a result, in this paper, a shared energy storage system among multiple wind farms is proposed to address this energy management challenge. A state-of-the-art wind power forecasting method with ensemble numerical weather prediction models is used to optimally determine the size of a shared energy storage system (ESS). A number of scenarios are performed to optimize and explore the energy storage size under different economic and storage resource sharing circumstances. The performance of ESS, namely the net revenue of power plants, is explored subject to ESS size and operating constraints of wind farms and power systems. Results of a case study show that sharing of energy storage among multiple wind farms and lower cost of storage progressively enhance the economic benefits of using storage to mitigate over-production/under-forecasting (thus curtailment) and under-production/over-forecasting scenarios.
{"title":"Grid Optimization of Shared Energy Storage Among Wind Farms Based on Wind Forecasting","authors":"Kaige Zhu, Souma Chowdhury, Mucun Sun, Jie Zhang","doi":"10.1109/TDC.2018.8440548","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440548","url":null,"abstract":"Energy storage is crucial for source-side renewable energy power plants for enhancing output stability and reducing mismatch between power generation and demand. However, installing large size energy storage systems for renewable energy plants may not be economic, due to high capital cost and ever-increasing human resources and maintenance cost. As a result, in this paper, a shared energy storage system among multiple wind farms is proposed to address this energy management challenge. A state-of-the-art wind power forecasting method with ensemble numerical weather prediction models is used to optimally determine the size of a shared energy storage system (ESS). A number of scenarios are performed to optimize and explore the energy storage size under different economic and storage resource sharing circumstances. The performance of ESS, namely the net revenue of power plants, is explored subject to ESS size and operating constraints of wind farms and power systems. Results of a case study show that sharing of energy storage among multiple wind farms and lower cost of storage progressively enhance the economic benefits of using storage to mitigate over-production/under-forecasting (thus curtailment) and under-production/over-forecasting scenarios.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"4 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87165527","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440290
A. Arzani, G. Venayagamoorthy
This paper demonstrates integration of aggregate Plug-in Electric Vehicle parking lots known as SmartParks, adjacent to a MW-scale Photovoltaic (PV) plant for mitigation of loading on synchronous generators during peak hours as well as enhancing the Available Transfer Capability of area tie-lines. Simulations are carried out in the real-time digital simulator, where the PV plant and aggregate SmartParks are connected to a benchmark two-area multi-machine power system, equipped with secondary frequency controllers i.e. Automatic Generation Controllers and benefiting from Phasor Measurement Units data. The results conclude that cost-effective energy storage technologies such as SmartParks bring the potential in coping with one of the open challenges impeding PV penetration growth.
{"title":"Integration of SmartParks in a Power System with Utility-Scale PV Plant","authors":"A. Arzani, G. Venayagamoorthy","doi":"10.1109/TDC.2018.8440290","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440290","url":null,"abstract":"This paper demonstrates integration of aggregate Plug-in Electric Vehicle parking lots known as SmartParks, adjacent to a MW-scale Photovoltaic (PV) plant for mitigation of loading on synchronous generators during peak hours as well as enhancing the Available Transfer Capability of area tie-lines. Simulations are carried out in the real-time digital simulator, where the PV plant and aggregate SmartParks are connected to a benchmark two-area multi-machine power system, equipped with secondary frequency controllers i.e. Automatic Generation Controllers and benefiting from Phasor Measurement Units data. The results conclude that cost-effective energy storage technologies such as SmartParks bring the potential in coping with one of the open challenges impeding PV penetration growth.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"1 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90398594","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 : 2018-04-16DOI: 10.1109/TDC.2018.8440534
Ricardo Faia, T. Pinto, Z. Vale, J. Corchado
Electric power systems have undergone major changes in recent years. Electricity markets are one of the sectors that has been most affected by these changes. Electricity market design is being updated in order to support efficient operation and investments incentives. However, the development of efficient rules is neither easy nor guaranteed. This paper addresses the simulation of multi-participation in electric energy markets. The purpose of this simulation is to offer solutions to electricity market players, in order to support their decisions on future participation situations. For this, artificial intelligence techniques will be used, namely for forecasting and optimization processes. In specific, an optimization approach based on Evolutionary Particle Swarm Optimization (EPSO) is proposed. The achieved results are compared to those of a deterministic resolution method, and of the classical Particle Swarm Optimization (PSO). Results show that the proposed approach is able to achieve higher mean and maximum objective function results than the classical PSO, with a smaller standard deviation. The execution time is higher than using PSO, but still very fast when compared the deterministic method. The case study is based on real data from the Iberian electricity market.
{"title":"Optimization of Multiple Electricity Markets Participation Using Evolutionary PSO","authors":"Ricardo Faia, T. Pinto, Z. Vale, J. Corchado","doi":"10.1109/TDC.2018.8440534","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440534","url":null,"abstract":"Electric power systems have undergone major changes in recent years. Electricity markets are one of the sectors that has been most affected by these changes. Electricity market design is being updated in order to support efficient operation and investments incentives. However, the development of efficient rules is neither easy nor guaranteed. This paper addresses the simulation of multi-participation in electric energy markets. The purpose of this simulation is to offer solutions to electricity market players, in order to support their decisions on future participation situations. For this, artificial intelligence techniques will be used, namely for forecasting and optimization processes. In specific, an optimization approach based on Evolutionary Particle Swarm Optimization (EPSO) is proposed. The achieved results are compared to those of a deterministic resolution method, and of the classical Particle Swarm Optimization (PSO). Results show that the proposed approach is able to achieve higher mean and maximum objective function results than the classical PSO, with a smaller standard deviation. The execution time is higher than using PSO, but still very fast when compared the deterministic method. The case study is based on real data from the Iberian electricity market.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"18 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80489135","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}
Corona discharges and UV radiation on the surface of silicone rubber sheath are considered to be one of the ageing mechanisms responsible for the failure of composite insulators. An advanced high temperature vulcanized silicone rubber (HTV-SR) has been developed in Shemar to solve this issue. In this study, the ageing performance of HTV-SR specimens resulting from a 2000h UV radiation exposure and a corona discharge test were investigated; furthermore, physicochemical analyses were conducted on the specimens before and after the treatment. The results showed that the optimized formulation represented a very slight decrease in both electrical and mechanical performances. The hydrophobicity of all the specimens can restore to the nearly initial level after a short-term standing. It was demonstrated that the composite insulator with advanced HTV-SR sheath has long-term lifetime even operated under the extremely environmental and electrical stresses.
{"title":"Ageing Performance of HTV Silicone Rubber Used for Outdoor Insulation","authors":"Yong Zhu, Xiaorong Zhang, Shuchen Zhou, Jiang Fang","doi":"10.1109/TDC.2018.8440553","DOIUrl":"https://doi.org/10.1109/TDC.2018.8440553","url":null,"abstract":"Corona discharges and UV radiation on the surface of silicone rubber sheath are considered to be one of the ageing mechanisms responsible for the failure of composite insulators. An advanced high temperature vulcanized silicone rubber (HTV-SR) has been developed in Shemar to solve this issue. In this study, the ageing performance of HTV-SR specimens resulting from a 2000h UV radiation exposure and a corona discharge test were investigated; furthermore, physicochemical analyses were conducted on the specimens before and after the treatment. The results showed that the optimized formulation represented a very slight decrease in both electrical and mechanical performances. The hydrophobicity of all the specimens can restore to the nearly initial level after a short-term standing. It was demonstrated that the composite insulator with advanced HTV-SR sheath has long-term lifetime even operated under the extremely environmental and electrical stresses.","PeriodicalId":6568,"journal":{"name":"2018 IEEE/PES Transmission and Distribution Conference and Exposition (T&D)","volume":"38 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77764079","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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