Pub Date : 2022-11-11DOI: 10.1109/APET56294.2022.10072647
Yan Dong, Haoyang Wang, Yongsheng Zhu, Caijing Nie, Dongya Wu
With the widespread deployment of renewable energy generation devices and the continuous access of demand side resources in the new microgrid system, power system operations are gradually moving away from the traditional top-down hierarchy. The uncertainty it brings to the system is becoming increasingly unconditional, making it difficult for optimal power system dispatching to operate effectively. Based on the above problems, this paper proposes a novel dispatching scheme to achieve the optimal operation of the system using an iterative coordination method of the supply demand interaction. On the supply side, the peak-flat-valley time division rules are proposed to develop a dynamic electricity price based on fuzzy C-means clustering. Furthermore, the system carbon and economic costs are integrated and modeled as minimization objectives. On the demand side, the power consumption behavior of flexible loads is evaluated considering demand response uncertainty based on the cloud model theory. Case studies demonstrate the validity of proposed model and adopted method including reducing the peak-to-valley difference and CO2 emission. Moreover, cloud model has a significant effect in dealing with the uncertainty of load demand response.
{"title":"Research on Regional Flexible Load Low Carbon Dispatching Based on Cloud Model","authors":"Yan Dong, Haoyang Wang, Yongsheng Zhu, Caijing Nie, Dongya Wu","doi":"10.1109/APET56294.2022.10072647","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072647","url":null,"abstract":"With the widespread deployment of renewable energy generation devices and the continuous access of demand side resources in the new microgrid system, power system operations are gradually moving away from the traditional top-down hierarchy. The uncertainty it brings to the system is becoming increasingly unconditional, making it difficult for optimal power system dispatching to operate effectively. Based on the above problems, this paper proposes a novel dispatching scheme to achieve the optimal operation of the system using an iterative coordination method of the supply demand interaction. On the supply side, the peak-flat-valley time division rules are proposed to develop a dynamic electricity price based on fuzzy C-means clustering. Furthermore, the system carbon and economic costs are integrated and modeled as minimization objectives. On the demand side, the power consumption behavior of flexible loads is evaluated considering demand response uncertainty based on the cloud model theory. Case studies demonstrate the validity of proposed model and adopted method including reducing the peak-to-valley difference and CO2 emission. Moreover, cloud model has a significant effect in dealing with the uncertainty of load demand response.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131682194","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072839
Yusheng Shen, Sichao Xun, Hongyi Xiao, Xiaoyue Liu, Guocai Li
In order to build a uniform application platform for the distribution automation system, the IEC61850, the most comprehensive communication standard, is proposed. With the increase in the amount of equipment in the distributed sensing system or the power Internet of Things systems, the real-time shared data transmission delay among sensing systems is a key technical issue. This paper proposed an optimization algorithm based on the complex network theory, fully considering the real-time requirements of the shared DATA links. The results of the case study showed adequate efficiency in the design of sensing systems.
{"title":"A Fast and Reliable Sensing Scheme for Distribution Automation Based on IEC61850","authors":"Yusheng Shen, Sichao Xun, Hongyi Xiao, Xiaoyue Liu, Guocai Li","doi":"10.1109/APET56294.2022.10072839","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072839","url":null,"abstract":"In order to build a uniform application platform for the distribution automation system, the IEC61850, the most comprehensive communication standard, is proposed. With the increase in the amount of equipment in the distributed sensing system or the power Internet of Things systems, the real-time shared data transmission delay among sensing systems is a key technical issue. This paper proposed an optimization algorithm based on the complex network theory, fully considering the real-time requirements of the shared DATA links. The results of the case study showed adequate efficiency in the design of sensing systems.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134425302","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10073452
Dong-Hai Chen, Han-Wen Chen, Yuyin Qiu, T. Hu, Jun Huang, Hai-bo Zhu, Yong Zhang, Zhi-Xia Gu
Finite control set model predictive control (FCS-MPC) approach is highly dependent on the system model. It is equipped with the advantages of simple structure, high accuracy and optimization performance. When considering the model uncertainties, control performances are inevitably degraded to some extent. Time-delay is a typical kind of model uncertainties, which significantly affects the prediction accuracy and system stability. In this paper, a fractional-order based Smith Predictor based composite FCS-MPC approach is investigated and applied in a grid-connected system. The control accuracy can be significantly improved in this way. Moreover, considering the inherent time-delay introduced by Smith Predictor, phase lead design solution has been proposed. Various cases of simulation results are illustrated to show the effectiveness of the investigated approach.
{"title":"Universal Delay Compensation for Model Predictive Current Control of Three-Phase Inverters","authors":"Dong-Hai Chen, Han-Wen Chen, Yuyin Qiu, T. Hu, Jun Huang, Hai-bo Zhu, Yong Zhang, Zhi-Xia Gu","doi":"10.1109/APET56294.2022.10073452","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073452","url":null,"abstract":"Finite control set model predictive control (FCS-MPC) approach is highly dependent on the system model. It is equipped with the advantages of simple structure, high accuracy and optimization performance. When considering the model uncertainties, control performances are inevitably degraded to some extent. Time-delay is a typical kind of model uncertainties, which significantly affects the prediction accuracy and system stability. In this paper, a fractional-order based Smith Predictor based composite FCS-MPC approach is investigated and applied in a grid-connected system. The control accuracy can be significantly improved in this way. Moreover, considering the inherent time-delay introduced by Smith Predictor, phase lead design solution has been proposed. Various cases of simulation results are illustrated to show the effectiveness of the investigated approach.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"367 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133418043","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072755
S. Madani, C. Ziebert
Temperature is an essential factor that substantially impacts lithium-ion batteries’ cycle lifetime, capacity, safety, and heat loss. The present investigation analyses the influence of the lithium-ion battery cell’s current rate on its temperature and thermal behaviour. The experiments were fulfilled at different discharge and charge cycles with different current rates. In this study, the thermal behaviour of a lithium-ion battery was analyzed at different current rates by employing a model-based approach from MATLAB. A correlation was seen between the current rate of the lithium-ion battery and the most remarkable temperature growth. The results would produce a more robust understanding of the temperature evolution of the lithium-ion battery cell for various applications. A smaller temperature was seen on the upper part of the lithium-ion battery pack.
{"title":"A Model-Based Approach for Temperature Estimation of a Lithium-ion Battery Pack","authors":"S. Madani, C. Ziebert","doi":"10.1109/APET56294.2022.10072755","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072755","url":null,"abstract":"Temperature is an essential factor that substantially impacts lithium-ion batteries’ cycle lifetime, capacity, safety, and heat loss. The present investigation analyses the influence of the lithium-ion battery cell’s current rate on its temperature and thermal behaviour. The experiments were fulfilled at different discharge and charge cycles with different current rates. In this study, the thermal behaviour of a lithium-ion battery was analyzed at different current rates by employing a model-based approach from MATLAB. A correlation was seen between the current rate of the lithium-ion battery and the most remarkable temperature growth. The results would produce a more robust understanding of the temperature evolution of the lithium-ion battery cell for various applications. A smaller temperature was seen on the upper part of the lithium-ion battery pack.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125215117","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072934
Tengfei Li, Liming Wang, Qingming Lin, Yang Zhao, Mingyang Zheng, A. Ma
In view of the water seepage of electric power pipes due to short-term waterlogging and the water accumulation of cable pipes caused by blocked drainage channels, this paper takes distribution network cable groups as the research object, and based on IEC60287, constructs an improved equivalent thermal circuit model of cable system considering the impact of water accumulation on the heat exchange in the pipes, and calculates and analyzes the current carrying capacity when there is water accumulation in the pipes based on the unequal load optimization algorithm, The influence law of different water accumulation depth on the current carrying capacity of cable group is revealed. The results show that the current carrying capacity of the cable laid in the drain pipe increases with the increase of the water accumulation level. When the water accumulation level completely submerges the cable, the increase rate of the current carrying capacity of the cable slows down.
{"title":"Study on the Influence of Water Accumulation in Electric Power Pipelines on the Current Carrying Capacity of Distribution Network Cables","authors":"Tengfei Li, Liming Wang, Qingming Lin, Yang Zhao, Mingyang Zheng, A. Ma","doi":"10.1109/APET56294.2022.10072934","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072934","url":null,"abstract":"In view of the water seepage of electric power pipes due to short-term waterlogging and the water accumulation of cable pipes caused by blocked drainage channels, this paper takes distribution network cable groups as the research object, and based on IEC60287, constructs an improved equivalent thermal circuit model of cable system considering the impact of water accumulation on the heat exchange in the pipes, and calculates and analyzes the current carrying capacity when there is water accumulation in the pipes based on the unequal load optimization algorithm, The influence law of different water accumulation depth on the current carrying capacity of cable group is revealed. The results show that the current carrying capacity of the cable laid in the drain pipe increases with the increase of the water accumulation level. When the water accumulation level completely submerges the cable, the increase rate of the current carrying capacity of the cable slows down.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134565572","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072606
Wang Bing-wen, Zheng Meng-yang, Sun Wei-Wei, Yin Jia
Shore-based power supply is a green and energy-saving offshore power supply technology, which can significantly reduce carbon emissions and effectively alleviate the increasingly serious energy shortage problem. This paper will focus on flexible DC networking scheme of shore-based power supply offshore oil production platform. Firstly, a scheme of shore-based flexible DC power supply network is designed for an offshore oil field. Secondly, from the perspective of system line loss, the line loss analysis and calculation of the design scheme and the actual project scheme are designed, and the applicable scenarios of the two-power supply technical schemes are obtained. Finally, the feasibility of the proposed scheme is verified by simulation.
{"title":"Research on Flexible DC Networking Scheme for Offshore Oil Platform Based on Shore Power Supply","authors":"Wang Bing-wen, Zheng Meng-yang, Sun Wei-Wei, Yin Jia","doi":"10.1109/APET56294.2022.10072606","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072606","url":null,"abstract":"Shore-based power supply is a green and energy-saving offshore power supply technology, which can significantly reduce carbon emissions and effectively alleviate the increasingly serious energy shortage problem. This paper will focus on flexible DC networking scheme of shore-based power supply offshore oil production platform. Firstly, a scheme of shore-based flexible DC power supply network is designed for an offshore oil field. Secondly, from the perspective of system line loss, the line loss analysis and calculation of the design scheme and the actual project scheme are designed, and the applicable scenarios of the two-power supply technical schemes are obtained. Finally, the feasibility of the proposed scheme is verified by simulation.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131358513","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072481
Liu Jiang, Mohan Zhu, Tongwei Yu, Min Ma, Yu Dai, Xinping Wang, Xiuyu Zhang, Guoqiang Zhu
The paper proposes an adaptive control scheme for a class of nonlinear multi-agent systems with unknown control directions. The adaptive control problem under the case that there exist unknown control directions and it need to be required for consistency is solved by put forward lots of relatively new Nussbaum functions. In addition, to ensure that multiple Nussbaum functions can achieve enhancement rather than mutual cancellation, a monotonously increasing sequence is used for this case. Also, by introducing a novel contradiction and a lot of integrable auxiliary signals in the design and analysis, it can help us analysis clearly. Under above efforts, the stability analysis ensure that the boundedness of the signals in the closed-loop systems and effectively achieve tracking error asymptotic convergence to zero. The problem of unknown control directions finally be overcame. And the proposed scheme is illustrated to be effective by the experiment results.
{"title":"Adaptive Control for a Class of Multi-agent Systems with Unknown Control Directions","authors":"Liu Jiang, Mohan Zhu, Tongwei Yu, Min Ma, Yu Dai, Xinping Wang, Xiuyu Zhang, Guoqiang Zhu","doi":"10.1109/APET56294.2022.10072481","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072481","url":null,"abstract":"The paper proposes an adaptive control scheme for a class of nonlinear multi-agent systems with unknown control directions. The adaptive control problem under the case that there exist unknown control directions and it need to be required for consistency is solved by put forward lots of relatively new Nussbaum functions. In addition, to ensure that multiple Nussbaum functions can achieve enhancement rather than mutual cancellation, a monotonously increasing sequence is used for this case. Also, by introducing a novel contradiction and a lot of integrable auxiliary signals in the design and analysis, it can help us analysis clearly. Under above efforts, the stability analysis ensure that the boundedness of the signals in the closed-loop systems and effectively achieve tracking error asymptotic convergence to zero. The problem of unknown control directions finally be overcame. And the proposed scheme is illustrated to be effective by the experiment results.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114331455","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}
As an indispensable part of the switch cabinet, the plum blossom contact will affect the safe and stable operation of the equipment. The long-term high temperature operation of the plum blossom contact will greatly affect the service life of the equipment. In this paper, the temperature rising of 630A/12-piece and 630A/24-piece quincunx contacts are calculated by combining actual measurement and finite element analysis, and the performance of two different types of quincunx contacts is analyzed and compared. The simulation results show that the maximum temperature rise of the plum blossom contacts of 12 contact fingers is 51.5°C, and the maximum temperature of the plum blossom contacts of 24 contact fingers is 64.4 °C. In the actual test, the maximum temperature rise of the plum blossom contacts with 12 contact fingers is 56.9 °C, and the maximum temperature of the plum blossom contacts with 24 contact fingers is 62.4 °C. Different from the experience that the fewer the contact fingers, the lower the temperature rise, the plum blossom contact with more contact fingers produces a higher temperature rise. From another point of view, this result may be due to the fact that under the same radius, the plum blossom contact with more contact fingers receives less spring pressure, and the increase in contact resistance leads to a more obvious thermal effect. This also shows that the influence of contact resistance on temperature should also be considered when the contact fingers are increased.
{"title":"Simulation Analysis of Plum Blossom Contact Temperature Field Based on Finite Element Analysis","authors":"Dacai Chen, Tian F. Lai, Xue Chen, Jiyu Li, Nuo-Fu Chen","doi":"10.1109/APET56294.2022.10073233","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10073233","url":null,"abstract":"As an indispensable part of the switch cabinet, the plum blossom contact will affect the safe and stable operation of the equipment. The long-term high temperature operation of the plum blossom contact will greatly affect the service life of the equipment. In this paper, the temperature rising of 630A/12-piece and 630A/24-piece quincunx contacts are calculated by combining actual measurement and finite element analysis, and the performance of two different types of quincunx contacts is analyzed and compared. The simulation results show that the maximum temperature rise of the plum blossom contacts of 12 contact fingers is 51.5°C, and the maximum temperature of the plum blossom contacts of 24 contact fingers is 64.4 °C. In the actual test, the maximum temperature rise of the plum blossom contacts with 12 contact fingers is 56.9 °C, and the maximum temperature of the plum blossom contacts with 24 contact fingers is 62.4 °C. Different from the experience that the fewer the contact fingers, the lower the temperature rise, the plum blossom contact with more contact fingers produces a higher temperature rise. From another point of view, this result may be due to the fact that under the same radius, the plum blossom contact with more contact fingers receives less spring pressure, and the increase in contact resistance leads to a more obvious thermal effect. This also shows that the influence of contact resistance on temperature should also be considered when the contact fingers are increased.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115844434","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072556
Yi Lu, Shuyuan Wang, Yanfeng Gao, Hui Wang, Xu Zhang, Shuochao Fan, Jingzhe Yu, Bin Su, Yuan Chen, Min Liu
Aiming at the four types of transmission line faults related to windy weather (wind deflection fault, body fault, mountain fire fault and foreign object fault), this paper firstly analyzes the principle of wind speed selection in transmission line design and the wind speed used in transmission line operation and maintenance. Using the method of the district map, the detailed wind fault characteristics of transmission lines in North China in the past ten years were counted and analyzed. Based on the above analysis, this paper puts forward technical measures for wind damage prevention in view of 4 types of high wind faults in transmission lines. This paper can provide technical reference for the operation and maintenance of the company’s transmission lines in windy weather.
{"title":"Analysis on Fault Characteristics of Overhead Transmission Lines Caused by Gale Weather in North China and Relevant Countermeasure","authors":"Yi Lu, Shuyuan Wang, Yanfeng Gao, Hui Wang, Xu Zhang, Shuochao Fan, Jingzhe Yu, Bin Su, Yuan Chen, Min Liu","doi":"10.1109/APET56294.2022.10072556","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072556","url":null,"abstract":"Aiming at the four types of transmission line faults related to windy weather (wind deflection fault, body fault, mountain fire fault and foreign object fault), this paper firstly analyzes the principle of wind speed selection in transmission line design and the wind speed used in transmission line operation and maintenance. Using the method of the district map, the detailed wind fault characteristics of transmission lines in North China in the past ten years were counted and analyzed. Based on the above analysis, this paper puts forward technical measures for wind damage prevention in view of 4 types of high wind faults in transmission lines. This paper can provide technical reference for the operation and maintenance of the company’s transmission lines in windy weather.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115904067","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 : 2022-11-11DOI: 10.1109/APET56294.2022.10072904
Yinghao Shan, Liqian Ma, Huashan Liu, Jiefeng Hu
To meet future practical needs of smart grids, constructing hybrid ac&dc microgrids with the two-type sub-grids becomes more realistic and urgent. However, in the existing literature, it is rare to see the joint controls of these sub-grids in islanded hierarchical control architecture. To this end, a coordinated hierarchical control strategy for this kind of hybrid microgrid has been presented in this paper, where both sub-grids are equipped with primary and secondary controllers. Using the proposed strategy, the power flows can be autonomously shared and deviated bus voltages can be fully restored. The control performance and stability of the overall microgrid system have been ensured to address different ac/dc load changes. Comprehensive simulation studies have verified the validity of the proposed strategy for hybrid microgrids.
{"title":"Coordinated Hierarchical Control Strategy for Islanded ac/dc Hybrid Microgrids","authors":"Yinghao Shan, Liqian Ma, Huashan Liu, Jiefeng Hu","doi":"10.1109/APET56294.2022.10072904","DOIUrl":"https://doi.org/10.1109/APET56294.2022.10072904","url":null,"abstract":"To meet future practical needs of smart grids, constructing hybrid ac&dc microgrids with the two-type sub-grids becomes more realistic and urgent. However, in the existing literature, it is rare to see the joint controls of these sub-grids in islanded hierarchical control architecture. To this end, a coordinated hierarchical control strategy for this kind of hybrid microgrid has been presented in this paper, where both sub-grids are equipped with primary and secondary controllers. Using the proposed strategy, the power flows can be autonomously shared and deviated bus voltages can be fully restored. The control performance and stability of the overall microgrid system have been ensured to address different ac/dc load changes. Comprehensive simulation studies have verified the validity of the proposed strategy for hybrid microgrids.","PeriodicalId":201727,"journal":{"name":"2022 Asia Power and Electrical Technology Conference (APET)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116048682","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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