With the development of the power system, the large transformer of the power grid is also increasing, and the sudden events of the transformer will cause serious influence on the power supply in the area. Using standby transformer to replace the fault transformer is an effective way to deal with transformer sudden fault. This paper first concerns the core problem of the theoretical calculation of transformer emergency standby, that is to set up the simulation model and calculation method of three phase three winding transformer with asymmetrical parameters. Through the NETOMAC simulation platform developed by the German SIEMENS company, the calculation method of the proposed simulation model is realized. Based on the simulation model and calculation method of the unsymmetrical parameter three phase three winding transformer, the 500kV transformer in East China power grid is taken as the research object, and the problem of transformer emergency standby is analyzed and calculated comprehensively. On the basis of a large number of calculation conclusions of the transformer standby applicability, the assessment method of transformer emergency standby applicability is proposed, and the relevant criterion and process are established. The transformer emergency standby calculation and assessment method proposed in this paper has very good practical application value. At present, the research results have been successfully applied to the emergency replacement of transformers in Shanghai power grid. The research results of this paper have a good prospect of application. The project implementation of the research results will save a lot of funds needed for the purchase of standby transformers. It has significant economic benefits and further improves the ability of emergency disposal of main transformer fault or sudden accident.
{"title":"Research and Practical Application of Transformer Emergency Standby Calculation and Assessment Method","authors":"Zhao Xue-qiang, Zhang Pengfei, Tian Haoyi, Zhao Sanshan","doi":"10.1109/POWERCON.2018.8601744","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601744","url":null,"abstract":"With the development of the power system, the large transformer of the power grid is also increasing, and the sudden events of the transformer will cause serious influence on the power supply in the area. Using standby transformer to replace the fault transformer is an effective way to deal with transformer sudden fault. This paper first concerns the core problem of the theoretical calculation of transformer emergency standby, that is to set up the simulation model and calculation method of three phase three winding transformer with asymmetrical parameters. Through the NETOMAC simulation platform developed by the German SIEMENS company, the calculation method of the proposed simulation model is realized. Based on the simulation model and calculation method of the unsymmetrical parameter three phase three winding transformer, the 500kV transformer in East China power grid is taken as the research object, and the problem of transformer emergency standby is analyzed and calculated comprehensively. On the basis of a large number of calculation conclusions of the transformer standby applicability, the assessment method of transformer emergency standby applicability is proposed, and the relevant criterion and process are established. The transformer emergency standby calculation and assessment method proposed in this paper has very good practical application value. At present, the research results have been successfully applied to the emergency replacement of transformers in Shanghai power grid. The research results of this paper have a good prospect of application. The project implementation of the research results will save a lot of funds needed for the purchase of standby transformers. It has significant economic benefits and further improves the ability of emergency disposal of main transformer fault or sudden accident.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"1 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":"130139021","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/POWERCON.2018.8601746
Xiangping Kong, Xinyue Gong, Juan Li, Peng Li
Among the versatile control strategies in the control system of unified power flow controller (UPFC), the transmission line power flow control strategy is the most important one, which can help UPFC to realize its core function of regulating power flow. Based on the UPFC project in western Nanjing power grid, which is the first modular multilevel converter (MMC) based UPFC project all over the world, the function configuration and hierarchical structure of the UPFC control system are introduced firstly in this paper. Besides, the details of the transmission line power flow control strategy are presented. With the above control strategy, the active power and reactive power of the transmission line can be regulated quickly, independently and safely. Eventually, the field test results are demonstrated to validate the effect of the above control strategy.
{"title":"Analysis on the Transmission Line Power Flow Control Strategy of the UPFC Project in Western Nanjing Power Grid","authors":"Xiangping Kong, Xinyue Gong, Juan Li, Peng Li","doi":"10.1109/POWERCON.2018.8601746","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601746","url":null,"abstract":"Among the versatile control strategies in the control system of unified power flow controller (UPFC), the transmission line power flow control strategy is the most important one, which can help UPFC to realize its core function of regulating power flow. Based on the UPFC project in western Nanjing power grid, which is the first modular multilevel converter (MMC) based UPFC project all over the world, the function configuration and hierarchical structure of the UPFC control system are introduced firstly in this paper. Besides, the details of the transmission line power flow control strategy are presented. With the above control strategy, the active power and reactive power of the transmission line can be regulated quickly, independently and safely. Eventually, the field test results are demonstrated to validate the effect of the above control strategy.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"70 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":"134419344","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/POWERCON.2018.8601830
Deng Fengqiang, W. Zhidong, Yang Ling, Liang Mei, Zhang Zifan, Wang Gan, L. Zetao, Li Zhifeng, Guo Lin, Liu Xi
With the development of intelligent substation, substations rely more on network communication to transmit substation information. High substation automations with reliable communication avoid the traditional complicated operation which needs to be done manually, and improve the efficiency of substation operation. But higher requirements for the reliability of information integrity are put forward. The protection setting of intelligent substation directly affects the correctness of the protection devices (Intelligent Electronic Device) and further affects the normal operation of the entire power system. Because the protection setting of protective devices is affected by power system operation mode, season climate and many other factors, the protection setting often needs to be adjusted. When the number of protection devices in substation is increasing rapidly, the frequent change of the protection setting can easily cause the missing or omission of protection setting for certain protection devices, resulting in the potential danger of the power system. On view of the above problems, combined with the development trend of IEC61850, this paper focuses on the on-line management of protection devices. By studying the data attribute of the online management of protection device settings and combining the layered network structure of the intelligent substation, the online management system for protection device settings is constructed, with the aim to eliminate the hidden danger caused by the missing or omission of protection setting.
{"title":"On-line management method of protection setting integrity following IEC61850","authors":"Deng Fengqiang, W. Zhidong, Yang Ling, Liang Mei, Zhang Zifan, Wang Gan, L. Zetao, Li Zhifeng, Guo Lin, Liu Xi","doi":"10.1109/POWERCON.2018.8601830","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601830","url":null,"abstract":"With the development of intelligent substation, substations rely more on network communication to transmit substation information. High substation automations with reliable communication avoid the traditional complicated operation which needs to be done manually, and improve the efficiency of substation operation. But higher requirements for the reliability of information integrity are put forward. The protection setting of intelligent substation directly affects the correctness of the protection devices (Intelligent Electronic Device) and further affects the normal operation of the entire power system. Because the protection setting of protective devices is affected by power system operation mode, season climate and many other factors, the protection setting often needs to be adjusted. When the number of protection devices in substation is increasing rapidly, the frequent change of the protection setting can easily cause the missing or omission of protection setting for certain protection devices, resulting in the potential danger of the power system. On view of the above problems, combined with the development trend of IEC61850, this paper focuses on the on-line management of protection devices. By studying the data attribute of the online management of protection device settings and combining the layered network structure of the intelligent substation, the online management system for protection device settings is constructed, with the aim to eliminate the hidden danger caused by the missing or omission of protection setting.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"70 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":"134552096","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/POWERCON.2018.8602257
J. Liu, Ming Nie, Hao Wu, Xiaoming Mai
The precision of SLAM navigation positioning algorithm based on laser ranging, especially in complex scenes, is not satisfied to meet the accuracy requirements for automatic meter reading and isolating switch status reading. A method of PTZ accurate alignment for substation inspection robot is based on monocular vision camera is proposed. The desired position of robot and orientation of PTZ(Pan Tilt Zoom) camera are defined by the pre-capture reference image. The Scale Invariant Feature Transform (SIFT) algorithm is applied to extract the visual feedback information by matching the current view and the reference image. A Random Sample Consensus (RANSAC) algorithm is used to solve the affine transform between the current and reference image. The Jacobian matrix, representing the mapping relationship, is created by processing control signal of the PTZ control platform and feature space for the image. Besides this, PTZ accurate alignment is realized combined with the image multi-scale transformation. The experiment results of a realistic outdoor substation environment demonstrate the effectiveness of the processed method.
{"title":"An image-based Accurate Alignment for Substation Inspection Robot","authors":"J. Liu, Ming Nie, Hao Wu, Xiaoming Mai","doi":"10.1109/POWERCON.2018.8602257","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8602257","url":null,"abstract":"The precision of SLAM navigation positioning algorithm based on laser ranging, especially in complex scenes, is not satisfied to meet the accuracy requirements for automatic meter reading and isolating switch status reading. A method of PTZ accurate alignment for substation inspection robot is based on monocular vision camera is proposed. The desired position of robot and orientation of PTZ(Pan Tilt Zoom) camera are defined by the pre-capture reference image. The Scale Invariant Feature Transform (SIFT) algorithm is applied to extract the visual feedback information by matching the current view and the reference image. A Random Sample Consensus (RANSAC) algorithm is used to solve the affine transform between the current and reference image. The Jacobian matrix, representing the mapping relationship, is created by processing control signal of the PTZ control platform and feature space for the image. Besides this, PTZ accurate alignment is realized combined with the image multi-scale transformation. The experiment results of a realistic outdoor substation environment demonstrate the effectiveness of the processed method.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"17 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":"134036538","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/POWERCON.2018.8601949
Shuo Zhang, G. Zou, Chunhua Xu, Chenjun Sun
The line protection of modular multilevel converter (MMC)-based multiterminal direct current (MTDC) grids must detect and locate the faulty line within a few milliseconds after the fault occurs, which is greatly different from the protection of alternative current (AC) systems and traditional line commutated converter (LCC)-HVDC systems. Therefore, a new line protection principle suitable for MMC-MTDC grids must be proposed. The propagation characteristics of voltage traveling waves after DC line faults was first analyzed in this paper. Then, according to the fault transient characteristics of MMC-MTDC grids and the inherent composition of the primary equipment, this paper proposed a novel single-ended faulty line identification principle based on the aerial-mode voltage on the current-limiting inductor at the line terminal and a reliable faulty pole selection method. Besides, the corresponding line protection scheme was designed. Finally, a meshed four-terminal MMC-MTDC grid simulation model was built in PSCAD/EMTDC software to verify the feasibility of the protection scheme. Simulation results show that the proposed protection scheme can identify faulty lines with high speed and sensitivity.
{"title":"A Non-Unit Line Protection Scheme for MMC-MTDC Grids Based on Aerial-Mode Voltage Traveling Waves","authors":"Shuo Zhang, G. Zou, Chunhua Xu, Chenjun Sun","doi":"10.1109/POWERCON.2018.8601949","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601949","url":null,"abstract":"The line protection of modular multilevel converter (MMC)-based multiterminal direct current (MTDC) grids must detect and locate the faulty line within a few milliseconds after the fault occurs, which is greatly different from the protection of alternative current (AC) systems and traditional line commutated converter (LCC)-HVDC systems. Therefore, a new line protection principle suitable for MMC-MTDC grids must be proposed. The propagation characteristics of voltage traveling waves after DC line faults was first analyzed in this paper. Then, according to the fault transient characteristics of MMC-MTDC grids and the inherent composition of the primary equipment, this paper proposed a novel single-ended faulty line identification principle based on the aerial-mode voltage on the current-limiting inductor at the line terminal and a reliable faulty pole selection method. Besides, the corresponding line protection scheme was designed. Finally, a meshed four-terminal MMC-MTDC grid simulation model was built in PSCAD/EMTDC software to verify the feasibility of the protection scheme. Simulation results show that the proposed protection scheme can identify faulty lines with high speed and sensitivity.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"50 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":"131008931","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/POWERCON.2018.8602122
Chao Su, Xiaomei Wu, Xiaoliang Tang, Junling Hu
The safe operation of transmission overhead lines is often threatened by the fast growing and high growth trees under their line corridor. When the safe distance between the line and the tree is insufficient due to the limited height of transmission network, it is easy to occur tree related fault and tripping. Therefore, in order to effectively prevent the damage to overhead lines caused by the growth of extra high trees, it is necessary to know the growth rule of extra high trees and predict their growth height. In this paper, the deep learning algorithm is used to study the growth rule of extra high trees under overhead transmission lines. Different deep learning and artificial neural network algorithms such as Deep Belief Network, Auto-Encoder and Long-Short-Term-Memory Algorithm are used to predict the tree height, and the validity of these algorithms is verified. Furthermore, these algorithms are combined to verify that the combined algorithm has higher prediction accuracy than the single multilayer perceptron and mathematical statistical model.
输电架空线路走廊下生长快、生长高的树木经常威胁线路的安全运行。当输电网络高度有限，导致线路与采油树的安全距离不足时，容易发生采油树相关故障和跳闸。因此，为了有效防止超高树生长对架空线路造成的损害，有必要了解超高树的生长规律，并对其生长高度进行预测。本文采用深度学习算法研究架空输电线路下超高树的生长规律。采用深度信念网络(deep Belief network)、自编码器(Auto-Encoder)和长短期记忆算法(long - short - term memory Algorithm)等不同的深度学习和人工神经网络算法对树高进行预测，并验证了这些算法的有效性。进一步，将这些算法进行组合，验证了组合算法比单个多层感知机和数理统计模型具有更高的预测精度。
{"title":"Growth Height Prediction for the Trees under Overhead Lines based on Deep Learning Algorithm","authors":"Chao Su, Xiaomei Wu, Xiaoliang Tang, Junling Hu","doi":"10.1109/POWERCON.2018.8602122","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8602122","url":null,"abstract":"The safe operation of transmission overhead lines is often threatened by the fast growing and high growth trees under their line corridor. When the safe distance between the line and the tree is insufficient due to the limited height of transmission network, it is easy to occur tree related fault and tripping. Therefore, in order to effectively prevent the damage to overhead lines caused by the growth of extra high trees, it is necessary to know the growth rule of extra high trees and predict their growth height. In this paper, the deep learning algorithm is used to study the growth rule of extra high trees under overhead transmission lines. Different deep learning and artificial neural network algorithms such as Deep Belief Network, Auto-Encoder and Long-Short-Term-Memory Algorithm are used to predict the tree height, and the validity of these algorithms is verified. Furthermore, these algorithms are combined to verify that the combined algorithm has higher prediction accuracy than the single multilayer perceptron and mathematical statistical model.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"37 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132830721","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/POWERCON.2018.8601583
Yibiao Sheng, Tao Lin, Rusi Chen, Baoping Chen, Guili Ding, Xialing Xu, Lin Liu
Low frequency oscillation occurs frequently in power systems. Wide-area damping controller (WADC) based on Wide-Area Measurement System (WAMS) can effectively suppress inter-area low frequency oscillations. However, with the introduction of global signals, time delays are inevitable. Electromagnetic torque analysis method(ETA) can establish the analytic relation between electromagnetic torque coefficients and control parameters of power component, which is facilitative to analyze small signal stability. Considering that WADC has inherent characteristics of multiple time delays, based on the ETA for equivalent two-machine system, this paper deduces the general mathematics expression among electromagnetic torque coefficients, WADC parameters and time delays. The influence mechanism of time delay on electromagnetic torque coefficients and small signal stability is further analyzed. Based on these analysis, performance of damping control of WADC can be improved, on one hand, time-delay small signal stability region is established under fixed WADC parameters, on the other hand, if small signal stability is not achieved under the given WADC parameters due to set of the time delays, optimization scheme is proposed to carry out parameters coordination according to the measured time delays. Finally, taking two time delays as an example, the paper verifies the effectiveness of the proposed method by comparing the system dynamic performance considering two time delays with the system only considering single time delay and the system without time delay in a two-area four-machine power system.
{"title":"ETA-based analysis of small signal stability considering WADC with multiple time delays","authors":"Yibiao Sheng, Tao Lin, Rusi Chen, Baoping Chen, Guili Ding, Xialing Xu, Lin Liu","doi":"10.1109/POWERCON.2018.8601583","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601583","url":null,"abstract":"Low frequency oscillation occurs frequently in power systems. Wide-area damping controller (WADC) based on Wide-Area Measurement System (WAMS) can effectively suppress inter-area low frequency oscillations. However, with the introduction of global signals, time delays are inevitable. Electromagnetic torque analysis method(ETA) can establish the analytic relation between electromagnetic torque coefficients and control parameters of power component, which is facilitative to analyze small signal stability. Considering that WADC has inherent characteristics of multiple time delays, based on the ETA for equivalent two-machine system, this paper deduces the general mathematics expression among electromagnetic torque coefficients, WADC parameters and time delays. The influence mechanism of time delay on electromagnetic torque coefficients and small signal stability is further analyzed. Based on these analysis, performance of damping control of WADC can be improved, on one hand, time-delay small signal stability region is established under fixed WADC parameters, on the other hand, if small signal stability is not achieved under the given WADC parameters due to set of the time delays, optimization scheme is proposed to carry out parameters coordination according to the measured time delays. Finally, taking two time delays as an example, the paper verifies the effectiveness of the proposed method by comparing the system dynamic performance considering two time delays with the system only considering single time delay and the system without time delay in a two-area four-machine power system.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"7 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":"132941558","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/POWERCON.2018.8601637
Zhu Yun, Yao Mengting, L. Junjie, Chen Ji, He Penghui
The low-voltage districts is complex, large in number and have various types of users, which makes the calculation of line loss more complicated. Therefore, combining the research status of line loss calculation at home and abroad with the related algorithms of data mining, based on the power consumption data of low-voltage districts, we proposed a prediction model of low-voltage districts line loss based on improved K-Means algorithm. First of all, cluster the data pre-processed. Secondly, establish multivariate linear regression prediction model for each clustered data. What's more, input the sample data and determine which type of the districts they belongs by Euclidean distance so as to predict the line loss rate. Finally, analyze the prediction error of the model by comparing the actual value with the predicted value. The analysis of the actual data of low-voltage districts shows that the improved K-Means has the characteristic of high prediction accuracy and it's simple, fast and practical. It has superior performance in analyzing and processing the data in low-voltage districts, which can effectively improve the management, standardization and refinement level of low-voltage districts.
{"title":"Line loss calculation of low-voltage districts based on improved K-Means","authors":"Zhu Yun, Yao Mengting, L. Junjie, Chen Ji, He Penghui","doi":"10.1109/POWERCON.2018.8601637","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601637","url":null,"abstract":"The low-voltage districts is complex, large in number and have various types of users, which makes the calculation of line loss more complicated. Therefore, combining the research status of line loss calculation at home and abroad with the related algorithms of data mining, based on the power consumption data of low-voltage districts, we proposed a prediction model of low-voltage districts line loss based on improved K-Means algorithm. First of all, cluster the data pre-processed. Secondly, establish multivariate linear regression prediction model for each clustered data. What's more, input the sample data and determine which type of the districts they belongs by Euclidean distance so as to predict the line loss rate. Finally, analyze the prediction error of the model by comparing the actual value with the predicted value. The analysis of the actual data of low-voltage districts shows that the improved K-Means has the characteristic of high prediction accuracy and it's simple, fast and practical. It has superior performance in analyzing and processing the data in low-voltage districts, which can effectively improve the management, standardization and refinement level of low-voltage districts.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"7 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":"133026251","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/POWERCON.2018.8601600
Zongshuai Jin, Hengxu Zhang, Fang Shi, Weisheng Liu, Yuanlong Liu
The increasing penetrations of converter-based renewable energy resources and nonlinear loads make it urgent to develop a detection method to adaptively monitor the sub/super-synchronous components to further detect the potential risk of the co-existence and cooperation of hundreds or thousands of converters. This paper proposes an enhanced adaptive sub/super-synchronous components detection method based on robust regression smoothing filtering (RRSF). According to simulation tests, the proposed method can detect the time-varying sub/super-synchronous components in the noisy signals with SNR of 0 dB and is robust to the colored property of background noise.
{"title":"Adaptive Sub/Super-synchronous Components Detection Method Based on Robust Regression Smoothing","authors":"Zongshuai Jin, Hengxu Zhang, Fang Shi, Weisheng Liu, Yuanlong Liu","doi":"10.1109/POWERCON.2018.8601600","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8601600","url":null,"abstract":"The increasing penetrations of converter-based renewable energy resources and nonlinear loads make it urgent to develop a detection method to adaptively monitor the sub/super-synchronous components to further detect the potential risk of the co-existence and cooperation of hundreds or thousands of converters. This paper proposes an enhanced adaptive sub/super-synchronous components detection method based on robust regression smoothing filtering (RRSF). According to simulation tests, the proposed method can detect the time-varying sub/super-synchronous components in the noisy signals with SNR of 0 dB and is robust to the colored property of background noise.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"8 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":"133592448","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/POWERCON.2018.8602045
Shiyao Jiang, Yuanyuan Zeng, Lin Cheng, Liting Tian, Jiazhu Zhao, Bowen Yan, Xin Wang, Canbing Li
The implementation of the Interruptible Load(IL) project will change the total power load and thus influence the network planning. Therefore, this paper analyzes the necessity of considering IL in planning, the compensation cost model of the IL project is established, and the substation capacity planning method considering the IL is proposed. Aiming at the complexity of the mixed integer nonlinear programming problem, the particle swarm optimization(PSO) algorithm is used to solve the problem, and the effectiveness of the proposed method is verified in a regional power grid with a main voltage level of $110kV$. The calculation results show that the proposed method can reduce the peak load and reduce the substation capacity allocation under the condition of meeting the regional power balance, which saves the construction cost and improves the economic efficiency of the power grid planning.
{"title":"Substation Capacity Planning Method Considering Interruptible Load","authors":"Shiyao Jiang, Yuanyuan Zeng, Lin Cheng, Liting Tian, Jiazhu Zhao, Bowen Yan, Xin Wang, Canbing Li","doi":"10.1109/POWERCON.2018.8602045","DOIUrl":"https://doi.org/10.1109/POWERCON.2018.8602045","url":null,"abstract":"The implementation of the Interruptible Load(IL) project will change the total power load and thus influence the network planning. Therefore, this paper analyzes the necessity of considering IL in planning, the compensation cost model of the IL project is established, and the substation capacity planning method considering the IL is proposed. Aiming at the complexity of the mixed integer nonlinear programming problem, the particle swarm optimization(PSO) algorithm is used to solve the problem, and the effectiveness of the proposed method is verified in a regional power grid with a main voltage level of $110kV$. The calculation results show that the proposed method can reduce the peak load and reduce the substation capacity allocation under the condition of meeting the regional power balance, which saves the construction cost and improves the economic efficiency of the power grid planning.","PeriodicalId":260947,"journal":{"name":"2018 International Conference on Power System Technology (POWERCON)","volume":"118 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":"133700267","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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