Pub Date : 2016-10-01DOI: 10.1109/APPEEC.2016.7779678
Haoran Lian, Z. Bie, Yuan Hu, Peng Qin, Yangyang Liu
Network planning is a complicated and arduous project, with a large scale of uncertain factors and a wide range of characteristics. Based on the technical characteristics of the power grid, a scientific and comprehensive index system is established in this paper. Using the judgment matrix and intrinsic entropy value to determine the index weight of each level, the fuzzy analytic hierarchy process is proposed to evaluate the power grid. For the selection of the planning project, the weakness oriented dynamic assessment method is proposed, forming a closed loop evaluation strategy. In the view of the weakness of the power grid, the key indexes are selected to evaluate the power grid planning projects. The validity of the method is verified in the case of a regional power grid.
{"title":"Research on the comprehensive evaluation method and index system of power network planning","authors":"Haoran Lian, Z. Bie, Yuan Hu, Peng Qin, Yangyang Liu","doi":"10.1109/APPEEC.2016.7779678","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779678","url":null,"abstract":"Network planning is a complicated and arduous project, with a large scale of uncertain factors and a wide range of characteristics. Based on the technical characteristics of the power grid, a scientific and comprehensive index system is established in this paper. Using the judgment matrix and intrinsic entropy value to determine the index weight of each level, the fuzzy analytic hierarchy process is proposed to evaluate the power grid. For the selection of the planning project, the weakness oriented dynamic assessment method is proposed, forming a closed loop evaluation strategy. In the view of the weakness of the power grid, the key indexes are selected to evaluate the power grid planning projects. The validity of the method is verified in the case of a regional power grid.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131037923","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779534
A. Cárdenas, C. Guzmán, M. Chemsi, K. Agbossou
This paper focuses on the implementation of local microgrid control applied to an isolated AC microgrid with PEM-FC system acting as main source and renewable sources used as power exporting sources. The AC microgrid works as an autonomous system, as in remote communities' applications, using D-Droop and I-Droop schemes which allow the operation of the multisource system without communication link among the power and voltage controllers. The local control system has been implemented in Field Programmable Gate Array (FPGA) and evaluated by simulation and by experiments with a PEMFC & renewable sources AC microgrid. The development of power electronics converters and the controllers which are based on FPGA technology is also presented. The simulation and experimental results confirm that the proposed local control can be applied in a real AC microgrid with good transient and steady state response to supply the AC load correctly.
{"title":"Development of AC microgrid test bench with Hydrogen fuel cell and renewable sources","authors":"A. Cárdenas, C. Guzmán, M. Chemsi, K. Agbossou","doi":"10.1109/APPEEC.2016.7779534","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779534","url":null,"abstract":"This paper focuses on the implementation of local microgrid control applied to an isolated AC microgrid with PEM-FC system acting as main source and renewable sources used as power exporting sources. The AC microgrid works as an autonomous system, as in remote communities' applications, using D-Droop and I-Droop schemes which allow the operation of the multisource system without communication link among the power and voltage controllers. The local control system has been implemented in Field Programmable Gate Array (FPGA) and evaluated by simulation and by experiments with a PEMFC & renewable sources AC microgrid. The development of power electronics converters and the controllers which are based on FPGA technology is also presented. The simulation and experimental results confirm that the proposed local control can be applied in a real AC microgrid with good transient and steady state response to supply the AC load correctly.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132874602","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779480
Lian Liu, M. Popov, M. V. D. van der Meijden, V. Terzija
The HVDC technologies have become a promising solution for the future power grid, and DC circuit breaker (DCCB) is designed and tested to protect HVDC networks. Although there are several types of DCCB, they are basically designed for interrupting fault current in one direction. It has been noticed that capability of bidirectional interruption is necessary. Two possible bidirectional designs are demonstrated in this paper. In addition, installing DC capacitor at DC side of a VSC can lower the requirement of the DCCB due to the resonant current caused by this capacitor and the current limiting reactor in a DCCB. The simulation on PSCAD/EMTDC verifies the effectiveness of the proposed methods.
{"title":"The DC circuit breaker with necessary bidirectional interruption capability","authors":"Lian Liu, M. Popov, M. V. D. van der Meijden, V. Terzija","doi":"10.1109/APPEEC.2016.7779480","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779480","url":null,"abstract":"The HVDC technologies have become a promising solution for the future power grid, and DC circuit breaker (DCCB) is designed and tested to protect HVDC networks. Although there are several types of DCCB, they are basically designed for interrupting fault current in one direction. It has been noticed that capability of bidirectional interruption is necessary. Two possible bidirectional designs are demonstrated in this paper. In addition, installing DC capacitor at DC side of a VSC can lower the requirement of the DCCB due to the resonant current caused by this capacitor and the current limiting reactor in a DCCB. The simulation on PSCAD/EMTDC verifies the effectiveness of the proposed methods.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133046671","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}
Proportional resonant (PR) controllers/repetitive controllers (RC) based circulating current suppressing strategies in the stationary frame are widely used in MMC because of their simpleness and effectiveness. Unfortunately, they cannot be directly used in MMC-HVDC systems since they can result in dc-line voltage ripples and thus deteriorate system performance and stability under unbalanced grid conditions. This paper studies the problem in detail and then proposes corresponding improved circulating current suppressing strategies for MMC-HVDC, in which newly designed zero-sequence circulating current controller is employed. The proposed strategies can effectively eliminate both circulating currents and dc-line voltage ripples for MMC-HVDC systems under balanced and unbalanced grid conditions. Hence, they greatly enhance the fault ride-through capability of MMC-HVDC systems without adding any control cost or the number of controllers. The theoretical analysis and the proposed strategies are both verified by an established MMC-HVDC simulation model in MATLAB/Simulink.
{"title":"Circulating current suppressing strategy for MMC-HVDC in the stationary frame","authors":"Jinyu Wang, Jun Liang, Chengfu Wang, Xiaoming Dong, Zhuo-di Wang, Zhengtang Liang","doi":"10.1109/APPEEC.2016.7779643","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779643","url":null,"abstract":"Proportional resonant (PR) controllers/repetitive controllers (RC) based circulating current suppressing strategies in the stationary frame are widely used in MMC because of their simpleness and effectiveness. Unfortunately, they cannot be directly used in MMC-HVDC systems since they can result in dc-line voltage ripples and thus deteriorate system performance and stability under unbalanced grid conditions. This paper studies the problem in detail and then proposes corresponding improved circulating current suppressing strategies for MMC-HVDC, in which newly designed zero-sequence circulating current controller is employed. The proposed strategies can effectively eliminate both circulating currents and dc-line voltage ripples for MMC-HVDC systems under balanced and unbalanced grid conditions. Hence, they greatly enhance the fault ride-through capability of MMC-HVDC systems without adding any control cost or the number of controllers. The theoretical analysis and the proposed strategies are both verified by an established MMC-HVDC simulation model in MATLAB/Simulink.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"97 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132592557","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779626
Yan Huan, Zhang Yi-yang, Zhang Xiao-qing, Zhang Zhi-hua
This paper quantitatively studies the wave characteristics of wind speed and wind power under different time scales, as well as the relationship between them, based on the real measured data of wind farm with the method of probability statistics and time series analysis. The result shows that the indirect prediction method may cause larger error because of abscure mapping relationship between wind speed and wind power, in addition, this paper also researches the influence on prediction accuracy due to the sampling interval. The result shows that the prediction accuracy is higher when the sampling interval is chosen among 5 ~ 15 min, furthermore, the rate of error increasing is more and more faster along with the extension of prediction duration, while the sampling is smaller, so it is necessary to determine the sampling interval by the prediction time scale. The achievement of this paper provides a strongly theoretical support for the model constructing and data sampling of wind power prediction, and also has the guiding significance to the precision improvement of the wind power prediction.
{"title":"The study on wave characteristics of wind power under multi-time scale","authors":"Yan Huan, Zhang Yi-yang, Zhang Xiao-qing, Zhang Zhi-hua","doi":"10.1109/APPEEC.2016.7779626","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779626","url":null,"abstract":"This paper quantitatively studies the wave characteristics of wind speed and wind power under different time scales, as well as the relationship between them, based on the real measured data of wind farm with the method of probability statistics and time series analysis. The result shows that the indirect prediction method may cause larger error because of abscure mapping relationship between wind speed and wind power, in addition, this paper also researches the influence on prediction accuracy due to the sampling interval. The result shows that the prediction accuracy is higher when the sampling interval is chosen among 5 ~ 15 min, furthermore, the rate of error increasing is more and more faster along with the extension of prediction duration, while the sampling is smaller, so it is necessary to determine the sampling interval by the prediction time scale. The achievement of this paper provides a strongly theoretical support for the model constructing and data sampling of wind power prediction, and also has the guiding significance to the precision improvement of the wind power prediction.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128816252","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779693
Zece Zhang, Xiuli Wang, Zechen Wu, Tianshi Shen
The power system that only consists of traditional generators is easy to assess the reliability using Monte Carlo simulation because the generator can be seen as a two-state model. But the wind turbine generator cannot be treated as a two-state model in a power system with large scale wind power for the randomness and intermittent of wind. However, a simplified equivalent method of wind farm for reliability evaluation is proposed in this paper and used to turn a large scale wind farm that consists of different types and numbers of WTG to just one equivalent generator in the sense of reliability evaluation. The basic parameters in traditional algorithm such as the mean time to failure (MTTF) and the mean time to repair (MTTR) are replaced by the mean time to shake (MTTS) and the equivalent mean time to repair (EMTTR). The validity of the method is proved by the improved RTS79 system. The reliability index like EENS and LOLE are calculated using this equivalent method and its outcome are compared to that using traditional Monte Carlo simulation. This paper provide a new thought to simplify the model of wind turbines group and has some guiding effects on the power system reliability assessment considering large-scale wind power integration.
{"title":"A simplified equivalent method of wind farm for reliability evaluation","authors":"Zece Zhang, Xiuli Wang, Zechen Wu, Tianshi Shen","doi":"10.1109/APPEEC.2016.7779693","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779693","url":null,"abstract":"The power system that only consists of traditional generators is easy to assess the reliability using Monte Carlo simulation because the generator can be seen as a two-state model. But the wind turbine generator cannot be treated as a two-state model in a power system with large scale wind power for the randomness and intermittent of wind. However, a simplified equivalent method of wind farm for reliability evaluation is proposed in this paper and used to turn a large scale wind farm that consists of different types and numbers of WTG to just one equivalent generator in the sense of reliability evaluation. The basic parameters in traditional algorithm such as the mean time to failure (MTTF) and the mean time to repair (MTTR) are replaced by the mean time to shake (MTTS) and the equivalent mean time to repair (EMTTR). The validity of the method is proved by the improved RTS79 system. The reliability index like EENS and LOLE are calculated using this equivalent method and its outcome are compared to that using traditional Monte Carlo simulation. This paper provide a new thought to simplify the model of wind turbines group and has some guiding effects on the power system reliability assessment considering large-scale wind power integration.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127655407","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779494
Wang Liu-hui, Xian Wang, Shaohua Zhang
In electricity markets with strategic bidding of wind power producer (WPP), it is an important issue to deal with WPP's imbalance between its actual output and bid output. A joint planning and operation strategy of WPP and demand response (DR) aggregator is capable of reducing the wind power output deviations. In this paper, a multi-period stochastic Cournot equilibrium model of the electricity market is proposed. In this model, the conventional firms and WPP with DR resource both bid in the market and a scenario reduction technique is employed to describe the uncertainty of wind speed. Numerical examples show that with the DR resource, the WPP tends to increase its bid output in the peak time and reduce its bid output in the off-peak time. This will alleviate the price fluctuation in the day-ahead market. In addition, the WPP can bid more output with increasing DR volume, and this will further reduce the peak-time prices.
{"title":"Electricity market equilibrium analysis for strategic bidding of wind power producer with demand response resource","authors":"Wang Liu-hui, Xian Wang, Shaohua Zhang","doi":"10.1109/APPEEC.2016.7779494","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779494","url":null,"abstract":"In electricity markets with strategic bidding of wind power producer (WPP), it is an important issue to deal with WPP's imbalance between its actual output and bid output. A joint planning and operation strategy of WPP and demand response (DR) aggregator is capable of reducing the wind power output deviations. In this paper, a multi-period stochastic Cournot equilibrium model of the electricity market is proposed. In this model, the conventional firms and WPP with DR resource both bid in the market and a scenario reduction technique is employed to describe the uncertainty of wind speed. Numerical examples show that with the DR resource, the WPP tends to increase its bid output in the peak time and reduce its bid output in the off-peak time. This will alleviate the price fluctuation in the day-ahead market. In addition, the WPP can bid more output with increasing DR volume, and this will further reduce the peak-time prices.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115379713","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779949
Bowen Han, G. Wang, Haifeng Li, Dehui Zeng
Inverter-Interfaced Distributed Generation (IIDG) connected to distribution network with a teed line may cause protective relay tripping failure even using conventional current differential protection, which is regarded as one of the most effective protection for distribution network with distributed generations. Therefore, the impacts of IIDGs on traditional current differential pilot protection is analyzed firstly in this paper. Next, the fault characteristics of IIDG are introduced and the fault model of IIDG is established, in which IIDG is viewed as a current source controlled by the positive-sequence voltage at the point of common coupling. Then, based on the three-phase voltage and current on both sides of line, an improved pilot protection is proposed, which consists of a negative-sequence current differential protection as an auxiliary criterion for the conventional pilot protection. Finally, the effectiveness of the improved protection scheme is verified by a 10kV distribution network with multi-IIDGs established in PSCAD/EMPDC. The simulation results indicate that the proposed protection can effectively reduce or eliminate IIDG's impacts on current differential protection, particularly for an asymmetric fault, under various conditions involving different IIDG's output and fault resistance, thereby improve its reliability significantly.
{"title":"An improved pilot protection for distribution network with Inverter-Interfaced Distributed Generations","authors":"Bowen Han, G. Wang, Haifeng Li, Dehui Zeng","doi":"10.1109/APPEEC.2016.7779949","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779949","url":null,"abstract":"Inverter-Interfaced Distributed Generation (IIDG) connected to distribution network with a teed line may cause protective relay tripping failure even using conventional current differential protection, which is regarded as one of the most effective protection for distribution network with distributed generations. Therefore, the impacts of IIDGs on traditional current differential pilot protection is analyzed firstly in this paper. Next, the fault characteristics of IIDG are introduced and the fault model of IIDG is established, in which IIDG is viewed as a current source controlled by the positive-sequence voltage at the point of common coupling. Then, based on the three-phase voltage and current on both sides of line, an improved pilot protection is proposed, which consists of a negative-sequence current differential protection as an auxiliary criterion for the conventional pilot protection. Finally, the effectiveness of the improved protection scheme is verified by a 10kV distribution network with multi-IIDGs established in PSCAD/EMPDC. The simulation results indicate that the proposed protection can effectively reduce or eliminate IIDG's impacts on current differential protection, particularly for an asymmetric fault, under various conditions involving different IIDG's output and fault resistance, thereby improve its reliability significantly.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"445 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115727917","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}
A novel fault recognition method, based on forward traveling wave amplitude feature of HVDC transmission line is proposed. The amplitude integration ratio of forward traveling waves within a short time after a fault is used to distinguish internal faults from external faults. For internal faults, the difference of amplitude between forward traveling waves at both ends is mainly related to line attenuation constant and fault location, the ratio of amplitude integration is relatively small. But for external faults, the ratio of amplitude integration is relatively large because forward traveling wave amplitude is affected by reflecion conefficient to a large extent. A large amount of simulation results based on PSCAD/EMTDC indicate that, the proposed fault recognition method can provide rapid and reliable identification between internal faults and external faults under various fault conditions, including different fault locations and high transition resistances.
{"title":"Fault identification method based on forward traveling wave amplitude feature for HVDC transmission line","authors":"Shuai Jiang, X. Kang, Xiuda Ma, Xiao-Xue Qu, Chao Zhang","doi":"10.1109/APPEEC.2016.7779646","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779646","url":null,"abstract":"A novel fault recognition method, based on forward traveling wave amplitude feature of HVDC transmission line is proposed. The amplitude integration ratio of forward traveling waves within a short time after a fault is used to distinguish internal faults from external faults. For internal faults, the difference of amplitude between forward traveling waves at both ends is mainly related to line attenuation constant and fault location, the ratio of amplitude integration is relatively small. But for external faults, the ratio of amplitude integration is relatively large because forward traveling wave amplitude is affected by reflecion conefficient to a large extent. A large amount of simulation results based on PSCAD/EMTDC indicate that, the proposed fault recognition method can provide rapid and reliable identification between internal faults and external faults under various fault conditions, including different fault locations and high transition resistances.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"324 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124579663","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 : 2016-10-01DOI: 10.1109/APPEEC.2016.7779843
Chi Zhang, X. Kang, Z. Jiao, Jianfei Ji
Abnormal data would appear in the signal acquisition system of a digital substation as a result of the disturbance from external environment. A data processing algorithm is proposed in this paper in order to meet the challenge of the abnormal data. It is proved in this paper that any three consecutive sampling values should satisfy a certain constraint condition in the ideal situation of the power system. The constraint condition is used to judge whether a real sampling value is abnormal. A complete algorithm is presented including three main steps. Simulation work verifies the effectiveness of the algorithm.
{"title":"Countermeasures on abnormal data in the signal acquisition system of digital substations","authors":"Chi Zhang, X. Kang, Z. Jiao, Jianfei Ji","doi":"10.1109/APPEEC.2016.7779843","DOIUrl":"https://doi.org/10.1109/APPEEC.2016.7779843","url":null,"abstract":"Abnormal data would appear in the signal acquisition system of a digital substation as a result of the disturbance from external environment. A data processing algorithm is proposed in this paper in order to meet the challenge of the abnormal data. It is proved in this paper that any three consecutive sampling values should satisfy a certain constraint condition in the ideal situation of the power system. The constraint condition is used to judge whether a real sampling value is abnormal. A complete algorithm is presented including three main steps. Simulation work verifies the effectiveness of the algorithm.","PeriodicalId":117485,"journal":{"name":"2016 IEEE PES Asia-Pacific Power and Energy Engineering Conference (APPEEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114415449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：