Power companies can use the power grid big data platform to cluster analysis of power metering data, which can improve the personalized service quality of power grid companies for different users and discover the power stealing behavior of users to protect the interests of power grid companies. However, in the cluster analysis of power measurement data, the privacy information of power users may also be disclosed. To defend the privacy information of power users, the article applies differential privacy technology to cluster analysis of power metering data to avoid power users’ privacy leakage. First, the article presents the attack model that exists in the cluster analysis of power metering data. Then, the article add Laplacian noise to the power metering data to defend against attacks in the cluster analysis of attackers. Next, to enhance the data availability of noise-added power measurement data in cluster analysis, the article limits noise distance based on the results of the cluster analysis. Experiments show that method proposed in article can guarantee the privacy information of power data during the cluster analysis of power metering data, and ensure the data quality of the power metering data after privacy protection.
{"title":"Privacy protection method of power metering data in clustering based on differential privacy","authors":"Xiaowen Yan, Yu Zhou, Fuxing Huang, Xiaofen Wang, Peisen Yuan","doi":"10.1109/CIEEC50170.2021.9510797","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510797","url":null,"abstract":"Power companies can use the power grid big data platform to cluster analysis of power metering data, which can improve the personalized service quality of power grid companies for different users and discover the power stealing behavior of users to protect the interests of power grid companies. However, in the cluster analysis of power measurement data, the privacy information of power users may also be disclosed. To defend the privacy information of power users, the article applies differential privacy technology to cluster analysis of power metering data to avoid power users’ privacy leakage. First, the article presents the attack model that exists in the cluster analysis of power metering data. Then, the article add Laplacian noise to the power metering data to defend against attacks in the cluster analysis of attackers. Next, to enhance the data availability of noise-added power measurement data in cluster analysis, the article limits noise distance based on the results of the cluster analysis. Experiments show that method proposed in article can guarantee the privacy information of power data during the cluster analysis of power metering data, and ensure the data quality of the power metering data after privacy protection.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121918970","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 : 2021-05-28DOI: 10.1109/cieec50170.2021.9510581
Xiuyuan Lu, Xingquan Wang, Yuxiang Wang
In general, the discharge gap of plasma reactor is larger than 1 mm, which leads to weak ionization degree of gas and less oxygen active particles. For the purpose of improving the intensity of ionized gas in plasma reactor and obtain high concentration of oxygen active particles, a coaxial plasma reactor with discharge gap less than 0.3 mm is designed by using quartz as the barrier dielectric. The characteristics of narrow gap strong ionization dielectric barrier discharge and its application are researched in this paper. Taking the amount of O3 produced by discharge as the evaluation index, the effects of different voltage and gas types on the discharge of plasma reactor have been studied. Furthermore, the effects of different discharge power and aerated stone on the degradation of methylene blue wastewater are discussed. The results show that the narrow gap plasma reactor can achieve stable strong ionization discharge and the discharge electric field strength is 33.5 kV/mm. The optimal discharge voltage (peak-to-peak voltage) is 14.2 kV for producing high concentration oxygen active particles by narrow gap plasma reactor. The concentration of O3 produced by ionizing air is above 500 ppm, the concentration of O3 produced by ionizing O2 is above 2300 ppm. Moreover, the optimal discharge power is 19.6 W for decolorization of methylene blue. Under aeration condition and treatment time for 3 min, the decolorization ratio of methylene blue can reach 99.48 %, its concentration is degraded from initial 50 mg/L to 0.26 mg/L. The narrow gap plasma reactor can greatly improve the discharge electric field strength and discharge performance. It is expected to provide a new idea for the development of efficient and green degradation technology of organic wastewater in industry.
{"title":"Characteristics of Narrow Gap Strong Ionization Dielectric Barrier Discharge and Its Application","authors":"Xiuyuan Lu, Xingquan Wang, Yuxiang Wang","doi":"10.1109/cieec50170.2021.9510581","DOIUrl":"https://doi.org/10.1109/cieec50170.2021.9510581","url":null,"abstract":"In general, the discharge gap of plasma reactor is larger than 1 mm, which leads to weak ionization degree of gas and less oxygen active particles. For the purpose of improving the intensity of ionized gas in plasma reactor and obtain high concentration of oxygen active particles, a coaxial plasma reactor with discharge gap less than 0.3 mm is designed by using quartz as the barrier dielectric. The characteristics of narrow gap strong ionization dielectric barrier discharge and its application are researched in this paper. Taking the amount of O3 produced by discharge as the evaluation index, the effects of different voltage and gas types on the discharge of plasma reactor have been studied. Furthermore, the effects of different discharge power and aerated stone on the degradation of methylene blue wastewater are discussed. The results show that the narrow gap plasma reactor can achieve stable strong ionization discharge and the discharge electric field strength is 33.5 kV/mm. The optimal discharge voltage (peak-to-peak voltage) is 14.2 kV for producing high concentration oxygen active particles by narrow gap plasma reactor. The concentration of O3 produced by ionizing air is above 500 ppm, the concentration of O3 produced by ionizing O2 is above 2300 ppm. Moreover, the optimal discharge power is 19.6 W for decolorization of methylene blue. Under aeration condition and treatment time for 3 min, the decolorization ratio of methylene blue can reach 99.48 %, its concentration is degraded from initial 50 mg/L to 0.26 mg/L. The narrow gap plasma reactor can greatly improve the discharge electric field strength and discharge performance. It is expected to provide a new idea for the development of efficient and green degradation technology of organic wastewater in industry.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124693304","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510942
Xin Shen, Wenchao Zhu, Yang Yang, Jack Xie, Liang Huang
This paper proposes an improved method for estimating the state of charge (SOC) of lithium-ion battery. Firstly, a first-order resistor and capacitance (RC) model is introduced. Secondly, the SOC and open-circuit voltage (OCV) relationship is identified through the constant current charge-discharge test, and the least-squares algorithm is used to identify the model parameters. Thirdly, an improved adaptive approach is proposed to solve the problems of particle swarm optimization (PSO), and adaptive particle swarm optimized particle filtering (APSO-PF) is proposed to estimate the SOC of li-ion battery Finally, two dynamic operation conditions are given to show the efficiency of APSO-PF by comparing with the application of particle filter (PF), particle swarm optimized particle filtering (PSO-PF) and APSO-PF in SOC estimation.
{"title":"A State of Charge Estimation Method Based on APSO-PF for Lithium-ion Battery","authors":"Xin Shen, Wenchao Zhu, Yang Yang, Jack Xie, Liang Huang","doi":"10.1109/CIEEC50170.2021.9510942","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510942","url":null,"abstract":"This paper proposes an improved method for estimating the state of charge (SOC) of lithium-ion battery. Firstly, a first-order resistor and capacitance (RC) model is introduced. Secondly, the SOC and open-circuit voltage (OCV) relationship is identified through the constant current charge-discharge test, and the least-squares algorithm is used to identify the model parameters. Thirdly, an improved adaptive approach is proposed to solve the problems of particle swarm optimization (PSO), and adaptive particle swarm optimized particle filtering (APSO-PF) is proposed to estimate the SOC of li-ion battery Finally, two dynamic operation conditions are given to show the efficiency of APSO-PF by comparing with the application of particle filter (PF), particle swarm optimized particle filtering (PSO-PF) and APSO-PF in SOC estimation.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125083132","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510470
Mengqi Wang, Hao Liu, Jiacai Li, Shengtao Li, Z. Lian, W. Shen
Composite insulator shed is easy to be affected by temperature, ultraviolet radiation, and other factors, resulting in the declining of insulation performance and threatening the safe operation. This paper aims at studying the terahertz frequency domain characteristics of high temperature vulcanized (HTV) silicone rubber (SIR) by terahertz time-domain spectroscopy (THz-TDS). Besides, the effects of high temperature on HTV SIR and the ageing mechanism in terahertz frequency domain are explored. The results show that ATH (Al(OH)3) in HTV SIR has obvious characteristic peaks at 1.2THz and 1.33THz, which can also increase the refractive index and dielectric constant of HTV SIR. Moreover, thermal ageing increases the refractive index and dielectric constant of HTV SIR in terahertz frequency domain with ageing time. The results of Fourier transform infrared spectroscopy (FTIR) show that the intensity of -OH increases but the intensity of C-H, -CH3 and Si-O-Si decrease with ageing time, which helps explain the results of THz-TDS. This study shows that THz-TDS is of great significance to the detection of polymers.
{"title":"Effect of Al(OH)3 and thermal ageing on the dielectric performance of composite insulator shed based on THz-TDS","authors":"Mengqi Wang, Hao Liu, Jiacai Li, Shengtao Li, Z. Lian, W. Shen","doi":"10.1109/CIEEC50170.2021.9510470","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510470","url":null,"abstract":"Composite insulator shed is easy to be affected by temperature, ultraviolet radiation, and other factors, resulting in the declining of insulation performance and threatening the safe operation. This paper aims at studying the terahertz frequency domain characteristics of high temperature vulcanized (HTV) silicone rubber (SIR) by terahertz time-domain spectroscopy (THz-TDS). Besides, the effects of high temperature on HTV SIR and the ageing mechanism in terahertz frequency domain are explored. The results show that ATH (Al(OH)3) in HTV SIR has obvious characteristic peaks at 1.2THz and 1.33THz, which can also increase the refractive index and dielectric constant of HTV SIR. Moreover, thermal ageing increases the refractive index and dielectric constant of HTV SIR in terahertz frequency domain with ageing time. The results of Fourier transform infrared spectroscopy (FTIR) show that the intensity of -OH increases but the intensity of C-H, -CH3 and Si-O-Si decrease with ageing time, which helps explain the results of THz-TDS. This study shows that THz-TDS is of great significance to the detection of polymers.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129698099","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510821
Aiming Chen, Lu Shan, Jingtao Wang, Xiuxin Chen, Xiao Chen
As residential customers can participate in demand response (DR) by lots of ways, it is challenging to formulate DR strategies to improve the regulation capability of the power system. To tackle this problem, this paper proposes a DR day-ahead scheduling model that considers different strategies for multiple-type residential customers. Firstly, according to the residential customers’ participation modes, the customers are classified into three types: hosting users, negotiating users and load aggregators (LA), and the corresponding regulation strategies for the flexible loads are developed. Secondly, the DR day-ahead scheduling model is established, the objective function is minimizing the customers’ discomfort, and the constraint condition considers the demand response request. Finally, a case study is performed to show the effect within DR through the model.
{"title":"Research on Demand Response Day-Ahead Scheduling Model for Multi-type Residential Customers","authors":"Aiming Chen, Lu Shan, Jingtao Wang, Xiuxin Chen, Xiao Chen","doi":"10.1109/CIEEC50170.2021.9510821","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510821","url":null,"abstract":"As residential customers can participate in demand response (DR) by lots of ways, it is challenging to formulate DR strategies to improve the regulation capability of the power system. To tackle this problem, this paper proposes a DR day-ahead scheduling model that considers different strategies for multiple-type residential customers. Firstly, according to the residential customers’ participation modes, the customers are classified into three types: hosting users, negotiating users and load aggregators (LA), and the corresponding regulation strategies for the flexible loads are developed. Secondly, the DR day-ahead scheduling model is established, the objective function is minimizing the customers’ discomfort, and the constraint condition considers the demand response request. Finally, a case study is performed to show the effect within DR through the model.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129889451","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}
Oil-filled high voltage cable terminals are widely used in urban power transmission networks. It is a common issue that the oil leakage poses troubles on the reliability of the cable lines. This paper proposes a technique to evaluate the oil level in the cable terminal using infrared imaging technique and corresponding image processing algorithm. In this paper, Canny operator and the threshold value of the sum of pixels are utilized to extract the region of interest. The peak envelop curve and its gradient curve are obtained to identity the oil level in the terminal. An on-site detection case of an oil-leaked terminal verifies the proposed technique.
{"title":"The on-site detection technique for silicone oil level in high voltage cable terminal using infrared image processing techniques","authors":"Weisheng He, Zhaoguo Wu, Jiankang Bao, Haitao Wu, Wei Song, Huixian Huang","doi":"10.1109/CIEEC50170.2021.9510263","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510263","url":null,"abstract":"Oil-filled high voltage cable terminals are widely used in urban power transmission networks. It is a common issue that the oil leakage poses troubles on the reliability of the cable lines. This paper proposes a technique to evaluate the oil level in the cable terminal using infrared imaging technique and corresponding image processing algorithm. In this paper, Canny operator and the threshold value of the sum of pixels are utilized to extract the region of interest. The peak envelop curve and its gradient curve are obtained to identity the oil level in the terminal. An on-site detection case of an oil-leaked terminal verifies the proposed technique.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128523322","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510946
Rui Zhang, Wen-xiong Xi, Qiang Huang
Discharge energy of thruster is an important factor which can affect Ablative Pulsed Plasma Thruster system performance. The discharge characteristics, ablation characteristics of propellant and plasma movement characteristics of APPT at different initial voltages are systematically studied. By fitting and estimating APPT circuit parameters and system performance parameters under different initial voltages, the internal mechanism of influence of initial voltage change on thruster performance is obtained. The results show that with the increase of discharge voltage, the plasma velocity increases, the impulse bit, specific impulse and efficiency of the thruster all increase, and the system performance improves. But with the increase of voltage, efficiency of the system energy converse to discharge energy decreases, while the mass of the ablated propellant increases, the proportion of the ablated propellant which is effectively ionized and accelerated by Lorentz force decreases. This is not conducive to the performance improvement of thruster, it can be concluded that simply increasing the initial voltage of thruster has certain limitations on optimizing thruster performance.
{"title":"Effect of Charging Voltage of Energy Storage Capacitor on Performance of Ablative Pulsed Plasma Thruster","authors":"Rui Zhang, Wen-xiong Xi, Qiang Huang","doi":"10.1109/CIEEC50170.2021.9510946","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510946","url":null,"abstract":"Discharge energy of thruster is an important factor which can affect Ablative Pulsed Plasma Thruster system performance. The discharge characteristics, ablation characteristics of propellant and plasma movement characteristics of APPT at different initial voltages are systematically studied. By fitting and estimating APPT circuit parameters and system performance parameters under different initial voltages, the internal mechanism of influence of initial voltage change on thruster performance is obtained. The results show that with the increase of discharge voltage, the plasma velocity increases, the impulse bit, specific impulse and efficiency of the thruster all increase, and the system performance improves. But with the increase of voltage, efficiency of the system energy converse to discharge energy decreases, while the mass of the ablated propellant increases, the proportion of the ablated propellant which is effectively ionized and accelerated by Lorentz force decreases. This is not conducive to the performance improvement of thruster, it can be concluded that simply increasing the initial voltage of thruster has certain limitations on optimizing thruster performance.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128536895","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510742
Ningning Liu, Yongli Li, Song Li, Tao Li
A new DC line protection is presented on the basis of current correlation of DC filter and DC line. Characteristic analysis on DC filter shows that it behaves like an inductor at high frequency. Based on this characteristic, fault analysis demonstrates for DC line faults, at high frequency, currents of DC filter and DC line are negatively correlated, their correlation coefficient is theoretically -1 for either end of line. Under external faults, near faulty end, the currents of DC filter and DC line are positively correlated, their correlation coefficient is theoretically 1, whereas at the distance faulty end, they are negatively correlated, their correlation coefficient is -1. Thus, current correlations are used to detect faults. Simulations demonstrate that the proposed protection can identify DC line faults accurately. Meanwhile, it has no requirement for two-terminal data synchronization and has low communication requirement. Besides, it is sensitive to high-impedance faults.
{"title":"A Pilot Protection for HVDC Transmission Lines Based on Current Correlation","authors":"Ningning Liu, Yongli Li, Song Li, Tao Li","doi":"10.1109/CIEEC50170.2021.9510742","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510742","url":null,"abstract":"A new DC line protection is presented on the basis of current correlation of DC filter and DC line. Characteristic analysis on DC filter shows that it behaves like an inductor at high frequency. Based on this characteristic, fault analysis demonstrates for DC line faults, at high frequency, currents of DC filter and DC line are negatively correlated, their correlation coefficient is theoretically -1 for either end of line. Under external faults, near faulty end, the currents of DC filter and DC line are positively correlated, their correlation coefficient is theoretically 1, whereas at the distance faulty end, they are negatively correlated, their correlation coefficient is -1. Thus, current correlations are used to detect faults. Simulations demonstrate that the proposed protection can identify DC line faults accurately. Meanwhile, it has no requirement for two-terminal data synchronization and has low communication requirement. Besides, it is sensitive to high-impedance faults.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"218 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128558731","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9511071
Shuo Chen, Wen Ding
In order to mitigate the impact of load changes and external interferences on the stability of wireless power transfer (WPT) systems, the control strategy with excellent dynamic performance and disturbance rejection capability should be used. Therefore, a novel finite-control-set model predictive control (FCS-MPC) is proposed for the voltage control of WPT systems in this paper. This method is implemented on the basis of a discrete dynamic voltage model, and its operation mechanism is given detailly and intuitively. Moreover, the tradeoff between computational burden and dynamic performance is removed by introducing an adaptive step-size. An improved cost function also is presented to accelerate the convergence rate and improve the disturbance rejection capability. Finally, simulation results are given to validate the capability of the novel FCS-MPC.
{"title":"A Novel Finite-Control-Set Model Predictive Voltage Control for Dynamic Improvement of Wireless Power Transfer Systems","authors":"Shuo Chen, Wen Ding","doi":"10.1109/CIEEC50170.2021.9511071","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9511071","url":null,"abstract":"In order to mitigate the impact of load changes and external interferences on the stability of wireless power transfer (WPT) systems, the control strategy with excellent dynamic performance and disturbance rejection capability should be used. Therefore, a novel finite-control-set model predictive control (FCS-MPC) is proposed for the voltage control of WPT systems in this paper. This method is implemented on the basis of a discrete dynamic voltage model, and its operation mechanism is given detailly and intuitively. Moreover, the tradeoff between computational burden and dynamic performance is removed by introducing an adaptive step-size. An improved cost function also is presented to accelerate the convergence rate and improve the disturbance rejection capability. Finally, simulation results are given to validate the capability of the novel FCS-MPC.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128201317","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 : 2021-05-28DOI: 10.1109/CIEEC50170.2021.9510306
Minyang Wang, Hongbin Wu, Bin Hu
The access of distributed generation (DG) increases the complexity of power supply capacity evaluation of the distribution network. This paper mainly studies the impact of DG on the load supply capacity (LSC) of the distribution network. The Dempster-Shafer structure (DS) of DG output is established by using the fuzzy analytic hierarchy process (FAHP). The LSC of the distribution network is calculated by blind number interval sampling, and the evidence focal element form of maximum load growing percentage is generated. Based on the evidence theory and blind number theory, the objective probability information and subjective range information of distribution network power supply capacity are obtained, and the belief and plausibility cumulative probability distribution of maximum load growing percentage are synthesized. The calculation results show that, compared with the traditional probabilistic and nonprobabilistic methods, the proposed method can well describe the objective and subjective uncertainty information of DG output, and comprehensively and effectively analyze the LSC of the distribution network.
{"title":"Load Supply Capability Evaluation of Distribution Network with Distributed Generation Based on Evidence Theory","authors":"Minyang Wang, Hongbin Wu, Bin Hu","doi":"10.1109/CIEEC50170.2021.9510306","DOIUrl":"https://doi.org/10.1109/CIEEC50170.2021.9510306","url":null,"abstract":"The access of distributed generation (DG) increases the complexity of power supply capacity evaluation of the distribution network. This paper mainly studies the impact of DG on the load supply capacity (LSC) of the distribution network. The Dempster-Shafer structure (DS) of DG output is established by using the fuzzy analytic hierarchy process (FAHP). The LSC of the distribution network is calculated by blind number interval sampling, and the evidence focal element form of maximum load growing percentage is generated. Based on the evidence theory and blind number theory, the objective probability information and subjective range information of distribution network power supply capacity are obtained, and the belief and plausibility cumulative probability distribution of maximum load growing percentage are synthesized. The calculation results show that, compared with the traditional probabilistic and nonprobabilistic methods, the proposed method can well describe the objective and subjective uncertainty information of DG output, and comprehensively and effectively analyze the LSC of the distribution network.","PeriodicalId":110429,"journal":{"name":"2021 IEEE 4th International Electrical and Energy Conference (CIEEC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128619956","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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