Pub Date : 2018-11-01DOI: 10.1109/CIEEC.2018.8745812
T. Gao, Xiaoying Zhang, Wei Chen, Kun Wang
In order to quantitatively analyze the probability distribution characteristics of wind power, this paper is based on the Weighted Gaussian Mixture Distribution (WGMD) model fitting the active power probability distribution of wind power field and a single wind turbine at the same time scale, and estimates the parameters of WGMD model with Variational Bayesian Expectation Maximization (VBEM) algorithm, and uses the Sum of Squares due to Error(SSE), the Root Mean Squared Error(RMSE), Adjusted R-Square (ARS) and other indicators to quantify numerically the fitting effect. Finally, the fitting effects of WGMD model, Weibull model and normal distribution are compared by the evaluation indicators, and the validity and feasibility of the proposed method are verified.
{"title":"Research on Wind Power Probabilistic Characteristics Based on VBEM Weighted Gaussian Mixture Distribution Model","authors":"T. Gao, Xiaoying Zhang, Wei Chen, Kun Wang","doi":"10.1109/CIEEC.2018.8745812","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745812","url":null,"abstract":"In order to quantitatively analyze the probability distribution characteristics of wind power, this paper is based on the Weighted Gaussian Mixture Distribution (WGMD) model fitting the active power probability distribution of wind power field and a single wind turbine at the same time scale, and estimates the parameters of WGMD model with Variational Bayesian Expectation Maximization (VBEM) algorithm, and uses the Sum of Squares due to Error(SSE), the Root Mean Squared Error(RMSE), Adjusted R-Square (ARS) and other indicators to quantify numerically the fitting effect. Finally, the fitting effects of WGMD model, Weibull model and normal distribution are compared by the evaluation indicators, and the validity and feasibility of the proposed method are verified.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"735 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116114225","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745994
Yunqi Zhao, Xiaoyang Tan, Jinying Li, Jing Xiang, Ning Zhang
With the economy globalization, the transnational power grid interconnection projects will inevitably become an important direction of investment in power grid, in order to evaluate the comprehensive benefits of such investments in the round and improve the accuracy of investment decisions, a comprehensive benefit evaluation index system suitable for such projects is constructed. In order to make full use of the subjective and objective information, this paper uses the combination weight method of analytic network process and artificial bee colony algorithm to determine index weight, and makes the comprehensive benefit evaluation of such projects by improved matter-element extension model. The research can provide a decision reference for the investment of transnational power grid interconnection projects.
{"title":"Using Improved Matter - Element Extension Model to Study Comprehensive Benefit Evaluation of the Transnational Power Grid Interconnection project","authors":"Yunqi Zhao, Xiaoyang Tan, Jinying Li, Jing Xiang, Ning Zhang","doi":"10.1109/CIEEC.2018.8745994","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745994","url":null,"abstract":"With the economy globalization, the transnational power grid interconnection projects will inevitably become an important direction of investment in power grid, in order to evaluate the comprehensive benefits of such investments in the round and improve the accuracy of investment decisions, a comprehensive benefit evaluation index system suitable for such projects is constructed. In order to make full use of the subjective and objective information, this paper uses the combination weight method of analytic network process and artificial bee colony algorithm to determine index weight, and makes the comprehensive benefit evaluation of such projects by improved matter-element extension model. The research can provide a decision reference for the investment of transnational power grid interconnection projects.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121744355","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745884
Xu Chong, Wu Xiaokang, Wei Bin, W. Chenyu
As a branch of the wireless power transmission technology, Wireless Power Transfer via Coupled Magnetic Resonances system can achieve high-power and high-efficiency medium-distance power transmission. However, in the system space, not all spatial points can achieve effective energy transmission, and the transmission efficiency of the system is deeply affected by the change of coil position. This problem has became one of the bottlenecks restricting the development of this technology. Aiming at the above problems, we can build a model of Wireless Power Transfer system by using circuit theory. It’s easy to know the expression of system receiving power and transmission efficiency with the model. At the same time, the effective coupling range of the system can be defined by simulation analysis. Finally, the finite element model and experimental system are built to verify the theoretical analysis. The experimental results are in good agreement with the theoretical analysis. The system transmission power can reach more than 80% of the critical coupling power within the effective coupling range. The results not only prove the correctness of the proposed method, but also provide a beneficial reference for Wireless Power Transfer via Coupled Magnetic Resonances system optimization.
{"title":"Research on Effective Coupling Range of Medium Distance Wireless Power Transfer via Coupled Magnetic Resonances","authors":"Xu Chong, Wu Xiaokang, Wei Bin, W. Chenyu","doi":"10.1109/CIEEC.2018.8745884","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745884","url":null,"abstract":"As a branch of the wireless power transmission technology, Wireless Power Transfer via Coupled Magnetic Resonances system can achieve high-power and high-efficiency medium-distance power transmission. However, in the system space, not all spatial points can achieve effective energy transmission, and the transmission efficiency of the system is deeply affected by the change of coil position. This problem has became one of the bottlenecks restricting the development of this technology. Aiming at the above problems, we can build a model of Wireless Power Transfer system by using circuit theory. It’s easy to know the expression of system receiving power and transmission efficiency with the model. At the same time, the effective coupling range of the system can be defined by simulation analysis. Finally, the finite element model and experimental system are built to verify the theoretical analysis. The experimental results are in good agreement with the theoretical analysis. The system transmission power can reach more than 80% of the critical coupling power within the effective coupling range. The results not only prove the correctness of the proposed method, but also provide a beneficial reference for Wireless Power Transfer via Coupled Magnetic Resonances system optimization.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126122464","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745794
Lin Liu, Xue Wang, Wenting Xiong, Xiufan Ma
The quantitative model of energy transition based on STIRPAT and Monte-Carlo method is proposed in this paper. The key influencing factors and target elements of the energy transition are analyzed, the plan objectives of the energy transition strategy are characterized by the target elements, the time projection of each target element in each stage is obtained according to the plan, and the relationship between the influencing factors and the target elements is established with the extended STIRPAT, through the analysis of the historical data of each index element by Ridge regression analysis, the normalized coefficients of each variable in STIRPAT are determined, and the factor-objective regression model is obtained. Based on the Monte-Carlo scenario analysis method, the energy transition paths are generated to get the final scenario of each path development. Finally, the optimal path of energy transition development is selected by comparing the minimum mean variance of the energy development goal and the planning target
{"title":"Research on Quantitative Model of Energy Transition Path Based on Scenario Analysis","authors":"Lin Liu, Xue Wang, Wenting Xiong, Xiufan Ma","doi":"10.1109/CIEEC.2018.8745794","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745794","url":null,"abstract":"The quantitative model of energy transition based on STIRPAT and Monte-Carlo method is proposed in this paper. The key influencing factors and target elements of the energy transition are analyzed, the plan objectives of the energy transition strategy are characterized by the target elements, the time projection of each target element in each stage is obtained according to the plan, and the relationship between the influencing factors and the target elements is established with the extended STIRPAT, through the analysis of the historical data of each index element by Ridge regression analysis, the normalized coefficients of each variable in STIRPAT are determined, and the factor-objective regression model is obtained. Based on the Monte-Carlo scenario analysis method, the energy transition paths are generated to get the final scenario of each path development. Finally, the optimal path of energy transition development is selected by comparing the minimum mean variance of the energy development goal and the planning target","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124858539","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745806
Luo Junyuan, Yin Lu, Li Hongwen, Yang Qing, Ran Jiaquan
A method for encapsulating the ceramic capacitors inside the insulator and performing on-line energy extraction by the principle of capacitive voltage divider is proposed. Through the field test, the ceramic capacitor insulator with a score of 4nF/80nF can obtain a maximum output power of 2W, which verifies the feasibility of the method. By constructing a 10kV circuit simulation platform, it is found that when the secondary side of the isolation transformer series inductance or the two isolation transformers are connected in series, the output power is increased compared with the single isolation transformer, and the output power of the secondary side of the isolation transformer series inductance is higher.
{"title":"Research on Energy Acquisition Method Based on Ceramic Capacitor Insulator","authors":"Luo Junyuan, Yin Lu, Li Hongwen, Yang Qing, Ran Jiaquan","doi":"10.1109/CIEEC.2018.8745806","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745806","url":null,"abstract":"A method for encapsulating the ceramic capacitors inside the insulator and performing on-line energy extraction by the principle of capacitive voltage divider is proposed. Through the field test, the ceramic capacitor insulator with a score of 4nF/80nF can obtain a maximum output power of 2W, which verifies the feasibility of the method. By constructing a 10kV circuit simulation platform, it is found that when the secondary side of the isolation transformer series inductance or the two isolation transformers are connected in series, the output power is increased compared with the single isolation transformer, and the output power of the secondary side of the isolation transformer series inductance is higher.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124420770","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745721
Xiaoxi Lv, Pei Zhang, Yao Lu, Jiateng Li, Yan Zhang
Transnational grid interconnections are conducive to promoting optimal allocation of resource, reducing generation costs, balancing system load, and reducing system backup capacity. It is necessary to assess compatibility between collaborating countries in order to evaluate feasibility of transnational grid interconnections. Our previous research investigated compatibility assessment methodology in terms of political, social, economic and environmental aspects. This paper performs a case study using the compatibility assessment between the United States and Canada. The evaluation result indicates that the two countries are suitable for grid interconnections. The actual situation of the interconnection between the United States and Canada confirms that the evaluation result is reasonable. Therefore, the methodology promoted previously can be used in compatibility assessment of transnational grid interconnections.
{"title":"Compatibility Assessment of Transnational Grid Interconnection between the United States and Canada","authors":"Xiaoxi Lv, Pei Zhang, Yao Lu, Jiateng Li, Yan Zhang","doi":"10.1109/CIEEC.2018.8745721","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745721","url":null,"abstract":"Transnational grid interconnections are conducive to promoting optimal allocation of resource, reducing generation costs, balancing system load, and reducing system backup capacity. It is necessary to assess compatibility between collaborating countries in order to evaluate feasibility of transnational grid interconnections. Our previous research investigated compatibility assessment methodology in terms of political, social, economic and environmental aspects. This paper performs a case study using the compatibility assessment between the United States and Canada. The evaluation result indicates that the two countries are suitable for grid interconnections. The actual situation of the interconnection between the United States and Canada confirms that the evaluation result is reasonable. Therefore, the methodology promoted previously can be used in compatibility assessment of transnational grid interconnections.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123959624","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745793
Jin Enshu, Y. Xiaofan, Xia guowu, Zhang Yagu
the traditional equivalent method is based on the Modular Multilevel Converter (MMC) steady state, without considering the half-bridge sub-module blocking, but in the electromagnetic transient simulation, when the module multilevel Converter is in the start-up phase or fails, there are many sub-modules in the blocked state. When the half-bridge sub-module is blocked, the current direction of the bridge arm will change frequently. Due to the improper simulation of the diode interpolation, the bridge arm current has a distortion point, resulting in low simulation accuracy and poor effect. This paper proposes an improved modular multilevel converter equivalent method based on Thévenin’s equivalent, which is different from the traditional bridge arm equivalent method which only considers the normal working state of the system. Moreover, when the half-bridge sub-module is in the locked condition, the diodes embedded in the PSCAD simulation software are used for modeling, so that the problem of diode numerical interpolation is effectively solved, thereby improving the precision of the simulation waveform and the speed-up effect is obvious.
{"title":"Improved Modular Multilevel Converter Equivalent Method based on Thévenin’s equivalent","authors":"Jin Enshu, Y. Xiaofan, Xia guowu, Zhang Yagu","doi":"10.1109/CIEEC.2018.8745793","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745793","url":null,"abstract":"the traditional equivalent method is based on the Modular Multilevel Converter (MMC) steady state, without considering the half-bridge sub-module blocking, but in the electromagnetic transient simulation, when the module multilevel Converter is in the start-up phase or fails, there are many sub-modules in the blocked state. When the half-bridge sub-module is blocked, the current direction of the bridge arm will change frequently. Due to the improper simulation of the diode interpolation, the bridge arm current has a distortion point, resulting in low simulation accuracy and poor effect. This paper proposes an improved modular multilevel converter equivalent method based on Thévenin’s equivalent, which is different from the traditional bridge arm equivalent method which only considers the normal working state of the system. Moreover, when the half-bridge sub-module is in the locked condition, the diodes embedded in the PSCAD simulation software are used for modeling, so that the problem of diode numerical interpolation is effectively solved, thereby improving the precision of the simulation waveform and the speed-up effect is obvious.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115536003","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745963
Hua Xie, Zhuang Li, Pei Zhang, Yinggang Peng, Fei Wang, Lin Yang, Zhenyu Gai
PSS/NETOMAC is an advanced electromagnetic and electromechanical transient analysis tool. In order to convert power grid data from PSD-BPA to PSS/NETOMAC, this paper first compares the power flow and transient analysis mathematical models between PSD-BPA and PSS/NETOMAC. The power flow models include AC buses, transmission lines and transformers. The transient analysis models include synchronous generator, excitation systems, power system stabilizers (PSS) and governor systems. Based on model comparison, a data conversion program has been developed to convert data from BPA to NETOMAC. Two test systems are used to verify the data conversion. NETOMAC and BPA can achieve the same power flow computation results. In terms of transient simulation, there exists slight difference between NETOMAC and BPA.
{"title":"Comparison and Data Conversion of PSD-BPA and PSS/NETOMAC Steady and Dynamic Models For Power Flow and Transient Stability Analysis","authors":"Hua Xie, Zhuang Li, Pei Zhang, Yinggang Peng, Fei Wang, Lin Yang, Zhenyu Gai","doi":"10.1109/CIEEC.2018.8745963","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745963","url":null,"abstract":"PSS/NETOMAC is an advanced electromagnetic and electromechanical transient analysis tool. In order to convert power grid data from PSD-BPA to PSS/NETOMAC, this paper first compares the power flow and transient analysis mathematical models between PSD-BPA and PSS/NETOMAC. The power flow models include AC buses, transmission lines and transformers. The transient analysis models include synchronous generator, excitation systems, power system stabilizers (PSS) and governor systems. Based on model comparison, a data conversion program has been developed to convert data from BPA to NETOMAC. Two test systems are used to verify the data conversion. NETOMAC and BPA can achieve the same power flow computation results. In terms of transient simulation, there exists slight difference between NETOMAC and BPA.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"202 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114355674","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745878
Huang Shan, Wu Zhensheng, Ren Zhigang, Liu Hongjing, Gui Yuan, Wu Linlin, Zhou Feng, Miao Wang
In order to ensure the micro-grid with distributed power to operate in a more economical, flexible and environmental way as well as the superiority of distributed power can be given full play. Aimed at the scheduling of the optimization of micro-grid, the paper propose the multi-objective optimization model that electric vehicles will be both a load and power generation unit at the same time, which aims to maximize the economic benefit and minimize the environmental cost. Using the non-objective sorting genetic algorithm NSGA-to solve the multi-objective optimization problems and obtain the Pareto front-end methods, finally, getting the best dispatch strategy of micro-grid. The validity of the proposed model, dispatch strategy and algorithm is proved by the examples.
{"title":"Multi-objective economic optimization operation of electric vehicle-contained microgrid based on cogeneration","authors":"Huang Shan, Wu Zhensheng, Ren Zhigang, Liu Hongjing, Gui Yuan, Wu Linlin, Zhou Feng, Miao Wang","doi":"10.1109/CIEEC.2018.8745878","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745878","url":null,"abstract":"In order to ensure the micro-grid with distributed power to operate in a more economical, flexible and environmental way as well as the superiority of distributed power can be given full play. Aimed at the scheduling of the optimization of micro-grid, the paper propose the multi-objective optimization model that electric vehicles will be both a load and power generation unit at the same time, which aims to maximize the economic benefit and minimize the environmental cost. Using the non-objective sorting genetic algorithm NSGA-to solve the multi-objective optimization problems and obtain the Pareto front-end methods, finally, getting the best dispatch strategy of micro-grid. The validity of the proposed model, dispatch strategy and algorithm is proved by the examples.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"2015 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114562702","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 : 2018-11-01DOI: 10.1109/CIEEC.2018.8745744
Ren Xinyu, He Jinhan, W. Xiaojun, Wang Zhenji
The application of Micro Phasor Measurement Unit (μPMU) provides a new technological approach for distribution network fault location. In order to improve the accuracy and reliability of fault location, the study of the characteristics for μPMU noise and its impact on fault location algorithms is of necessity. This paper proposed a PMU measurement error model for noise characteristics analysis. And the noise was introduced into the system to examine its effect on the traditional impedance fault location method. To analyze the noise characteristics, a median filter was used to extract the μPMU noise from the raw data. The Monte Carlo method was used to obtain the sample of the fault location error under the influence of μPMU noise. The observed data was fitted with the Gaussian Mixture Model (GMM) then evaluated by the goodness-of-fit (GOF) indexes in regression analysis theory. This method is used on both μPMU noise characteristics analysis and the fault location error under the influence of μPMU noise. The conclusion was reached: μPMU noise and the location error both obey the Gaussian distribution and the result was validated by actual μPMU measured data. The result of fault location error with μPMU noise is presented. The result shows that the accuracy of the impedance method is greatly influenced by the μPMU noise, and the accuracy of double-ended impedance method is higher than single-ended impedance method.
{"title":"Analysis of μPMU Noise Characteristics and Its Influence on Distribution Network Fault Location","authors":"Ren Xinyu, He Jinhan, W. Xiaojun, Wang Zhenji","doi":"10.1109/CIEEC.2018.8745744","DOIUrl":"https://doi.org/10.1109/CIEEC.2018.8745744","url":null,"abstract":"The application of Micro Phasor Measurement Unit (μPMU) provides a new technological approach for distribution network fault location. In order to improve the accuracy and reliability of fault location, the study of the characteristics for μPMU noise and its impact on fault location algorithms is of necessity. This paper proposed a PMU measurement error model for noise characteristics analysis. And the noise was introduced into the system to examine its effect on the traditional impedance fault location method. To analyze the noise characteristics, a median filter was used to extract the μPMU noise from the raw data. The Monte Carlo method was used to obtain the sample of the fault location error under the influence of μPMU noise. The observed data was fitted with the Gaussian Mixture Model (GMM) then evaluated by the goodness-of-fit (GOF) indexes in regression analysis theory. This method is used on both μPMU noise characteristics analysis and the fault location error under the influence of μPMU noise. The conclusion was reached: μPMU noise and the location error both obey the Gaussian distribution and the result was validated by actual μPMU measured data. The result of fault location error with μPMU noise is presented. The result shows that the accuracy of the impedance method is greatly influenced by the μPMU noise, and the accuracy of double-ended impedance method is higher than single-ended impedance method.","PeriodicalId":329285,"journal":{"name":"2018 IEEE 2nd International Electrical and Energy Conference (CIEEC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128700541","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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