SF6 gas insulated switchgear (GIS) equipment is widely used in power substation, but its defects are difficult to detect and insulation accident appears sudden. In order to improve the research on the discharge characteristics of defects in GIS, SF6 needle-plate gap was used to simulate the spike defect in GIS and the relationship between the breakdown characteristics and the partial discharge (PD) under power-frequency voltage and lightning impulse superimposed voltage (AC+LI) was studied. On the one hand, it was found that partial discharge of the spike defect under power frequency voltage was the main reason that the breakdown voltage under AC+LI superimposed voltage deviated from single lightning breakdown voltage. On the other hand, the space charge generated from partial discharge under power frequency voltage had different polarity and density, which resulted in the difference of breakdown characteristics under uniform or opposite superimposition.
{"title":"The correlation of breakdown and partial discharge for SF6 needle-plate gap under power frequency and lightning impulse superimposed voltage","authors":"Jing-gang Yang, Hongtao Li, Jianjun Liu, Jingtan Ma, Yongfei Liu, Ke Zhao","doi":"10.1109/REPE52765.2021.9617119","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617119","url":null,"abstract":"SF6 gas insulated switchgear (GIS) equipment is widely used in power substation, but its defects are difficult to detect and insulation accident appears sudden. In order to improve the research on the discharge characteristics of defects in GIS, SF6 needle-plate gap was used to simulate the spike defect in GIS and the relationship between the breakdown characteristics and the partial discharge (PD) under power-frequency voltage and lightning impulse superimposed voltage (AC+LI) was studied. On the one hand, it was found that partial discharge of the spike defect under power frequency voltage was the main reason that the breakdown voltage under AC+LI superimposed voltage deviated from single lightning breakdown voltage. On the other hand, the space charge generated from partial discharge under power frequency voltage had different polarity and density, which resulted in the difference of breakdown characteristics under uniform or opposite superimposition.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133193942","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9617105
Hong Hu, Libin Wen
A new unit commitment model of multi-source system considering thermal storage electric boiler with high proportion of wind power is proposed. The energy storage function of thermal storage electric boiler is fully exerted, so that it can cut peak and fill valley in the system, so as to improve the system's capacity of energy consumption for wind power and the economy of system operation. The membership function is used to transform the double objective with the lowest generation cost and the lowest heating cost into the single objective with the highest comprehensive satisfaction. The proportion of the influence of the two costs on the comprehensive satisfaction can be determined according to the demand by adjusting the expansion value of the two objectives, so as to facilitate the flexible solution. The results show that considering the unit commitment of thermal storage electric boiler has good effect on improving the wind power consumption capacity and the operation economy of the system.
{"title":"Multi Source System Unit Commitment Considering Thermal Storage Electric Boiler with High Proportion of Wind Power","authors":"Hong Hu, Libin Wen","doi":"10.1109/REPE52765.2021.9617105","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617105","url":null,"abstract":"A new unit commitment model of multi-source system considering thermal storage electric boiler with high proportion of wind power is proposed. The energy storage function of thermal storage electric boiler is fully exerted, so that it can cut peak and fill valley in the system, so as to improve the system's capacity of energy consumption for wind power and the economy of system operation. The membership function is used to transform the double objective with the lowest generation cost and the lowest heating cost into the single objective with the highest comprehensive satisfaction. The proportion of the influence of the two costs on the comprehensive satisfaction can be determined according to the demand by adjusting the expansion value of the two objectives, so as to facilitate the flexible solution. The results show that considering the unit commitment of thermal storage electric boiler has good effect on improving the wind power consumption capacity and the operation economy of the system.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134064629","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9616974
Z. Gu, Weikang Liang, Zhiyu Jiang
The AC filter is an important part of the DC transmission system, whose operating conditions directly affect the power transmission of the DC transmission system. Combined with the actual operation experience of AC filter, this paper analyzes the abnormal unbalance of C1 capacitor of AC filter, and concludes the main unbalance faults, which maintain Internal component failure of single capacitor and Capacitor discharge failure. Besides, the article analyzes and verifies that the interlayer discharge fault has a worse impact on the operation of AC filter through PSCAD / EMTDC simulation. The improvement measures of strengthening site inspection, increasing bird driving measures and monitoring the change times of C1 unbalanced current are put forward, which have practical significance for the safe operation of AC filter in converter station.
{"title":"Unbalanced Currentanalysis of Capacitor of Converter Station ac Filter Based on PSCAD/EMTDC","authors":"Z. Gu, Weikang Liang, Zhiyu Jiang","doi":"10.1109/REPE52765.2021.9616974","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9616974","url":null,"abstract":"The AC filter is an important part of the DC transmission system, whose operating conditions directly affect the power transmission of the DC transmission system. Combined with the actual operation experience of AC filter, this paper analyzes the abnormal unbalance of C1 capacitor of AC filter, and concludes the main unbalance faults, which maintain Internal component failure of single capacitor and Capacitor discharge failure. Besides, the article analyzes and verifies that the interlayer discharge fault has a worse impact on the operation of AC filter through PSCAD / EMTDC simulation. The improvement measures of strengthening site inspection, increasing bird driving measures and monitoring the change times of C1 unbalanced current are put forward, which have practical significance for the safe operation of AC filter in converter station.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116328783","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9617049
Jian Wu, Zihang Yuan, D. Jia, Dianguo Xu
This paper focuses on the grid connected inverter system based on LTCL filter. On the basis of stability analysis, the inherent resonance of the filter is compensated and suppressed. After the analysis, it is equivalent and simplified. The linear active disturbance rejection control method and the phase-locked loop of the front filter are adopted to ensure the robustness of the system. Finally, the simulation results show that the proposed control method is effective.
{"title":"LADRC Current Control Based On LTCL Filter","authors":"Jian Wu, Zihang Yuan, D. Jia, Dianguo Xu","doi":"10.1109/REPE52765.2021.9617049","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617049","url":null,"abstract":"This paper focuses on the grid connected inverter system based on LTCL filter. On the basis of stability analysis, the inherent resonance of the filter is compensated and suppressed. After the analysis, it is equivalent and simplified. The linear active disturbance rejection control method and the phase-locked loop of the front filter are adopted to ensure the robustness of the system. Finally, the simulation results show that the proposed control method is effective.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116504108","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9617100
Yuan Chunping, Duan Yongxian, Meng Jing, Li Xiong, Liu Wei, Cen Wei
With the proposition of the decarbonization strategy of energy systems and the development of DC power grid, DC energy measurement technology has become a hot topic both at home and abroad. The International Electrotechnical Commission (IEC) has compiled two technical standards for DC energy meters in 2020 and 2021, which were IEC 62052-11:2020 “Electricity metering equipment- General requirements, tests and test conditions- Part 11: Metering equipment” and IEC 62053–41: 2021 “Electricity metering equipment- Particular requirements-Part 41: Static meters for DC energy (class 0,5 and 1)”. In order to promote the development of related work in China, this paper has compared the latest released IEC standards for DC energy meters with the current national standards and type evaluation outlines in China. It also has analyzed such main differences as the applicable range, accuracy requirement and influence test items, etc. In addition, according to the current application situation of domestic DC technology, it has put forward some suggestions for the standardization of domestic DC energy meters.
{"title":"Comparative Study on Domestic and International Standards of DC Energy Meter","authors":"Yuan Chunping, Duan Yongxian, Meng Jing, Li Xiong, Liu Wei, Cen Wei","doi":"10.1109/REPE52765.2021.9617100","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617100","url":null,"abstract":"With the proposition of the decarbonization strategy of energy systems and the development of DC power grid, DC energy measurement technology has become a hot topic both at home and abroad. The International Electrotechnical Commission (IEC) has compiled two technical standards for DC energy meters in 2020 and 2021, which were IEC 62052-11:2020 “Electricity metering equipment- General requirements, tests and test conditions- Part 11: Metering equipment” and IEC 62053–41: 2021 “Electricity metering equipment- Particular requirements-Part 41: Static meters for DC energy (class 0,5 and 1)”. In order to promote the development of related work in China, this paper has compared the latest released IEC standards for DC energy meters with the current national standards and type evaluation outlines in China. It also has analyzed such main differences as the applicable range, accuracy requirement and influence test items, etc. In addition, according to the current application situation of domestic DC technology, it has put forward some suggestions for the standardization of domestic DC energy meters.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123963922","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9617091
Dongmiao Wang, Siwei Liu, Z. An, Nan Wei, Changyu Deng, Qingru Qi, Jianqin Liu, Jingjie Xue
The integration of high-penetration renewable energy resources into the power system has posed increasing challenges to system operators if the strict constraints of solar and wind curtailments are taken into consideration. The energy storage could provide ancillary service to system operators as it temporarily stores renewable energy to deal with the variation of renewable generation, thus promoting the consumption of renewable energy. Its effect on renewable energy accommodation is well worth being evaluated so that suitable types and sizes can be chosen to minimize the investment of energy storage equipment. Moreover, other factors such as the flexibility of thermal unit could also influence the effect of energy storage on renewable energy accommodation. This paper utilizes analysis of variance-based factorial analysis method to evaluate the effects of energy storage on renewable energy accommodation. A case study is conducted to study the effect of four factors (power capacity, energy-to-power ratio, round-trip efficiency for energy storage and minimum power output for thermal units) on the rate of renewable energy curtailment in a sending-end system of HVDC transmission. The results of analysis could provide a clear guidance to system operators for subsequent planning of energy storage devices in the HVDC sending-end system.
{"title":"Factorial Analysis for Evaluating the Effect of Energy Storage on Renewable Energy Accommodation","authors":"Dongmiao Wang, Siwei Liu, Z. An, Nan Wei, Changyu Deng, Qingru Qi, Jianqin Liu, Jingjie Xue","doi":"10.1109/REPE52765.2021.9617091","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617091","url":null,"abstract":"The integration of high-penetration renewable energy resources into the power system has posed increasing challenges to system operators if the strict constraints of solar and wind curtailments are taken into consideration. The energy storage could provide ancillary service to system operators as it temporarily stores renewable energy to deal with the variation of renewable generation, thus promoting the consumption of renewable energy. Its effect on renewable energy accommodation is well worth being evaluated so that suitable types and sizes can be chosen to minimize the investment of energy storage equipment. Moreover, other factors such as the flexibility of thermal unit could also influence the effect of energy storage on renewable energy accommodation. This paper utilizes analysis of variance-based factorial analysis method to evaluate the effects of energy storage on renewable energy accommodation. A case study is conducted to study the effect of four factors (power capacity, energy-to-power ratio, round-trip efficiency for energy storage and minimum power output for thermal units) on the rate of renewable energy curtailment in a sending-end system of HVDC transmission. The results of analysis could provide a clear guidance to system operators for subsequent planning of energy storage devices in the HVDC sending-end system.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117328331","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9617059
Qingguang Yu, Le Li, Zhicheng Jiang, Xiaoyu Li, Zhuoxu Chen, Jiali Ren, Yixuan Chen, Che Wei
With the access of large-scale renewable energy sources and distributed power sources, the importance of building an energy internet with internet technology as the core to optimally coordinate and control the distributed renewable energy infrastructure settings through an energy management system in order to optimally complement multiple energy sources, such as electricity, cooling, heat and water, continues to be highlighted. This paper proposes an energy routing strategy based on the interoperability of the cold and heat pipeline networks of distributed energy stations, firstly using a neural network method to make short-term predictions of the cooling and heating loads, and carrying out optimal scheduling before the integrated energy station day according to the prediction results; then carrying out a heat and pressure balance analysis of the cooling and heating system, adding a pipeline network loss constraint on the basis of the scheduling model; finally using a message queue telemetry transmission communication Finally, a message queue telemetry communication protocol is used to achieve efficient information security transfer and ensure smooth internal calls and external access to the edge server.
{"title":"Energy routing strategy of cold and heat networks in integrated energy stations","authors":"Qingguang Yu, Le Li, Zhicheng Jiang, Xiaoyu Li, Zhuoxu Chen, Jiali Ren, Yixuan Chen, Che Wei","doi":"10.1109/REPE52765.2021.9617059","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617059","url":null,"abstract":"With the access of large-scale renewable energy sources and distributed power sources, the importance of building an energy internet with internet technology as the core to optimally coordinate and control the distributed renewable energy infrastructure settings through an energy management system in order to optimally complement multiple energy sources, such as electricity, cooling, heat and water, continues to be highlighted. This paper proposes an energy routing strategy based on the interoperability of the cold and heat pipeline networks of distributed energy stations, firstly using a neural network method to make short-term predictions of the cooling and heating loads, and carrying out optimal scheduling before the integrated energy station day according to the prediction results; then carrying out a heat and pressure balance analysis of the cooling and heating system, adding a pipeline network loss constraint on the basis of the scheduling model; finally using a message queue telemetry transmission communication Finally, a message queue telemetry communication protocol is used to achieve efficient information security transfer and ensure smooth internal calls and external access to the edge server.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131668283","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}
This paper analyzes the characteristics of the auxiliary service market mechanism under the opening of the electricity selling side and establishes a bidding model for the electricity retailer to participate in the auxiliary service market. The established model not only considers the profit maximization of market participants, but also considers that the system needs to maximize social welfare to clear the market. The KKT condition is used to transform the outer optimization model into the constraint condition of the inner optimization model and then the solution is carried out. The validity of the model is proved by an example. The analysis shows that the electricity retailer can design a reasonable auxiliary service package to attract users to participate in the auxiliary service, and gain profits by having resources to participate in the auxiliary service market during the high load period. At the same time, it can avoid buying electricity in the wholesale market with high electricity price, so as to bring higher profits.
{"title":"Bidding Strategy and Package Design of Electricity Retailers Participating in Auxiliary Service Market","authors":"Dongyuan Yang, Gui-qi Zhu, Bangcan Wang, Wenjiao Ding, Kaisheng Lin, Liming Ying","doi":"10.1109/REPE52765.2021.9617114","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617114","url":null,"abstract":"This paper analyzes the characteristics of the auxiliary service market mechanism under the opening of the electricity selling side and establishes a bidding model for the electricity retailer to participate in the auxiliary service market. The established model not only considers the profit maximization of market participants, but also considers that the system needs to maximize social welfare to clear the market. The KKT condition is used to transform the outer optimization model into the constraint condition of the inner optimization model and then the solution is carried out. The validity of the model is proved by an example. The analysis shows that the electricity retailer can design a reasonable auxiliary service package to attract users to participate in the auxiliary service, and gain profits by having resources to participate in the auxiliary service market during the high load period. At the same time, it can avoid buying electricity in the wholesale market with high electricity price, so as to bring higher profits.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124194604","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}
SF6 gas insulated switchgear (GIS) is widely used in modern power system, but there are problems on stability due to its large-scale application. Among these problems, the insulator flashover fault is the most frequent problem. Hence, in order to investigate the characteristics of surface flashover of GIS insulator attached with metal particle, an experimental platform of power frequency voltage superimposed lightning impulse was set up and the waveform of positive lightning superimposed on the negative peak of power frequency voltage was generated. At the same time, an electric field simulation model of sample was set up. It was found that when the amplitude of power frequency component was less than 30kV, the surface flashover voltage of insulator attached with metal particle under the superimposed waveform showed obvious plateau phenomenon, when the flashover voltage was almost the same as that under lightning impulse alone. However, when the amplitude of power frequency increased to 40kV, the surface flashover voltage suddenly dropped by 10% around. By comparing with elecrtric field distribution of the sample, it was speculated that the above phenomena were directly related to the partial discharge near the insulator surface caused by distorted electric field for the attachment of metal particle.
{"title":"Surface flashover characteristics of GIS insulator attached with metal particle under power frequency voltage superimposed lightning impulse","authors":"Ke Zhao, Jingtan Ma, Shan Gao, Hongtao Li, Yujie Li, Hanyan Xiao","doi":"10.1109/REPE52765.2021.9617044","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617044","url":null,"abstract":"SF6 gas insulated switchgear (GIS) is widely used in modern power system, but there are problems on stability due to its large-scale application. Among these problems, the insulator flashover fault is the most frequent problem. Hence, in order to investigate the characteristics of surface flashover of GIS insulator attached with metal particle, an experimental platform of power frequency voltage superimposed lightning impulse was set up and the waveform of positive lightning superimposed on the negative peak of power frequency voltage was generated. At the same time, an electric field simulation model of sample was set up. It was found that when the amplitude of power frequency component was less than 30kV, the surface flashover voltage of insulator attached with metal particle under the superimposed waveform showed obvious plateau phenomenon, when the flashover voltage was almost the same as that under lightning impulse alone. However, when the amplitude of power frequency increased to 40kV, the surface flashover voltage suddenly dropped by 10% around. By comparing with elecrtric field distribution of the sample, it was speculated that the above phenomena were directly related to the partial discharge near the insulator surface caused by distorted electric field for the attachment of metal particle.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124227850","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 : 2021-10-09DOI: 10.1109/REPE52765.2021.9617026
Ningjia Ma, Xiaorong Xie, Xiaohui Qin, Lining Su
With the increasing penetration of renewable energy and power electronic equipment, the characteristics of frequency in a power system have been significantly changed. This paper analyzes the space-time distribution of frequency in a renewable power system. Firstly, the frequency-response model is established for different types of renewable integrated multi-generator power systems. Next, quantitative indices for the evaluation of frequency distribution are presented. Then, with simulation studies, the characteristics of frequency responses in different types of grid are analyzed. Finally, the factors affecting the space-time distribution of frequency, including location of renewable generator, line reactance and location of disturbances, are investigated.
{"title":"Space-time Distribution Characteristics of Frequency in Power Systems with Renewable Energy Generators","authors":"Ningjia Ma, Xiaorong Xie, Xiaohui Qin, Lining Su","doi":"10.1109/REPE52765.2021.9617026","DOIUrl":"https://doi.org/10.1109/REPE52765.2021.9617026","url":null,"abstract":"With the increasing penetration of renewable energy and power electronic equipment, the characteristics of frequency in a power system have been significantly changed. This paper analyzes the space-time distribution of frequency in a renewable power system. Firstly, the frequency-response model is established for different types of renewable integrated multi-generator power systems. Next, quantitative indices for the evaluation of frequency distribution are presented. Then, with simulation studies, the characteristics of frequency responses in different types of grid are analyzed. Finally, the factors affecting the space-time distribution of frequency, including location of renewable generator, line reactance and location of disturbances, are investigated.","PeriodicalId":136285,"journal":{"name":"2021 IEEE 4th International Conference on Renewable Energy and Power Engineering (REPE)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121768012","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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