Pub Date : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960668
Oskar Nordlander Hurtig, M. Arvidsson, Max Hessman, Katriine Koit, Tim Lindberg, Peiyuan Chen, Kristoffer Fürst
This paper aims to identify drivers and barriers of microgrid deployment in Sweden for gaining insights on the up-scaling potential of microgrid adoption in the country. Furthermore, two real-life distribution grids in southern Sweden are used to dimension the energy storage system (ESS) needed to enable island operation of the grids through power balance analysis. The results have also shown the benefit of interconnecting two adjacent distribution grids to form an interconnected microgrid. Through interconnection, the size of ESS can be reduced by around 23% as compared to operating two microgrids separately on their own. The analysis has also shown a potential to further reduce the ESS size if the weather information is considered.
{"title":"Drivers and Barriers to Deploy Microgrid in Sweden","authors":"Oskar Nordlander Hurtig, M. Arvidsson, Max Hessman, Katriine Koit, Tim Lindberg, Peiyuan Chen, Kristoffer Fürst","doi":"10.1109/ISGT-Europe54678.2022.9960668","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960668","url":null,"abstract":"This paper aims to identify drivers and barriers of microgrid deployment in Sweden for gaining insights on the up-scaling potential of microgrid adoption in the country. Furthermore, two real-life distribution grids in southern Sweden are used to dimension the energy storage system (ESS) needed to enable island operation of the grids through power balance analysis. The results have also shown the benefit of interconnecting two adjacent distribution grids to form an interconnected microgrid. Through interconnection, the size of ESS can be reduced by around 23% as compared to operating two microgrids separately on their own. The analysis has also shown a potential to further reduce the ESS size if the weather information is considered.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116220630","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960560
Manuel Párraga Meneses, A. F. Jaimes, José Vuelvas Quintana
Water-energy microgrids are regarded as a viable approach for generating well-being conditions and development in remote areas, such as the rancherías of Colombia’s La Guajira region. Water and energy generation, storage, and management systems can be combined to form this microgrids. In this sense, this work proposes two optimal sizing and management models, which consider the relationship between water and energy (nexus) through a storage system with a hydropump. The proposed optimization models are deterministic and stochastic, both in two stages; in the first, the size of the installed renewable energy is minimized, while in the second, the drinking water generated by a desalination system is minimized, all while managing resources over a time horizon and different scenarios. Similarly, users with different water and energy requirements are interconnected, and variations in user consumption are compensated with the hydropump system, ensuring the microgrid’s equilibrium over the time horizon. Linear and stochastic programming methods are used to solve the problem, whose formulations is implemented in the GAMS software. The results of the two optimization problems are compared with each other and the performance is evaluated in terms of sizing renewable energies, water production, resource management in the water-energy microgrid and costs.
{"title":"Water-energy nexus and stochastic optimization in a isolated microgrid: application in arid zones of La Guajira in Colombia","authors":"Manuel Párraga Meneses, A. F. Jaimes, José Vuelvas Quintana","doi":"10.1109/ISGT-Europe54678.2022.9960560","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960560","url":null,"abstract":"Water-energy microgrids are regarded as a viable approach for generating well-being conditions and development in remote areas, such as the rancherías of Colombia’s La Guajira region. Water and energy generation, storage, and management systems can be combined to form this microgrids. In this sense, this work proposes two optimal sizing and management models, which consider the relationship between water and energy (nexus) through a storage system with a hydropump. The proposed optimization models are deterministic and stochastic, both in two stages; in the first, the size of the installed renewable energy is minimized, while in the second, the drinking water generated by a desalination system is minimized, all while managing resources over a time horizon and different scenarios. Similarly, users with different water and energy requirements are interconnected, and variations in user consumption are compensated with the hydropump system, ensuring the microgrid’s equilibrium over the time horizon. Linear and stochastic programming methods are used to solve the problem, whose formulations is implemented in the GAMS software. The results of the two optimization problems are compared with each other and the performance is evaluated in terms of sizing renewable energies, water production, resource management in the water-energy microgrid and costs.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122485145","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960448
C. Szymczyk, G. Bumiller
The power grid is transforming and the increased usage of power electronics leads to non-linear power consumption demanding harmonic power flow analysis. Switched-mode power supplies are often used in this context since they massively increased efficiency and allow smaller form factors of devices. This paper provides a quasi-analytical solution with focus on the spectral analysis for evaluation of switched-mode power supplies as a model consisting of a full bridge rectifier with a parallel capacitor and an inverter represented as a resistor based on the assumption that the inverter behaves mostly ohmic in the pass-band of the full bridge rectifier. At first a quasi-analytic solution is provided, which allows to simulate the system considering the given assumptions for various component values. Afterwards an exemplary measurement is performed to show the practical behavior of the simulation.
{"title":"A Quasi-Analytic Solution for Harmonic Power Flow Analysis of a Full Bridge Rectifier","authors":"C. Szymczyk, G. Bumiller","doi":"10.1109/ISGT-Europe54678.2022.9960448","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960448","url":null,"abstract":"The power grid is transforming and the increased usage of power electronics leads to non-linear power consumption demanding harmonic power flow analysis. Switched-mode power supplies are often used in this context since they massively increased efficiency and allow smaller form factors of devices. This paper provides a quasi-analytical solution with focus on the spectral analysis for evaluation of switched-mode power supplies as a model consisting of a full bridge rectifier with a parallel capacitor and an inverter represented as a resistor based on the assumption that the inverter behaves mostly ohmic in the pass-band of the full bridge rectifier. At first a quasi-analytic solution is provided, which allows to simulate the system considering the given assumptions for various component values. Afterwards an exemplary measurement is performed to show the practical behavior of the simulation.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120987863","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960307
P. Therapontos, C. Charalambous, P. Aristidou
The massive penetration of Distributed Energy Resources (DERs) will unavoidably change the fundamental principles of Power System operation. Modern grid codes define specific capabilities and protections of DERs, mostly focused on the behaviour of the units to abrupt voltage and frequency excursions. In this paper, we use the Cyprus power system to analyze the impact of DER protections and capabilities on the bulk power system dynamic behaviour for different RES penetration levels on a low-inertia islanded system. It is demonstrated that the DER capabilities positively affect the power system frequency stability by providing active power support. On the contrary, protection mechanisms of DERs can have a negative impact on frequency stability during severe events with high RES penetrations, but the impact is significantly affected by their settings.
{"title":"Impact of Distributed Energy Resources Capabilities and Protections on Islanded Power System Frequency Stability","authors":"P. Therapontos, C. Charalambous, P. Aristidou","doi":"10.1109/ISGT-Europe54678.2022.9960307","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960307","url":null,"abstract":"The massive penetration of Distributed Energy Resources (DERs) will unavoidably change the fundamental principles of Power System operation. Modern grid codes define specific capabilities and protections of DERs, mostly focused on the behaviour of the units to abrupt voltage and frequency excursions. In this paper, we use the Cyprus power system to analyze the impact of DER protections and capabilities on the bulk power system dynamic behaviour for different RES penetration levels on a low-inertia islanded system. It is demonstrated that the DER capabilities positively affect the power system frequency stability by providing active power support. On the contrary, protection mechanisms of DERs can have a negative impact on frequency stability during severe events with high RES penetrations, but the impact is significantly affected by their settings.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124055752","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960625
A. Sajadi, J. A. Rañola, R. Kenyon, B. Hodge, B. Mather
The large-scale integration of variable renewable energy technologies around the world is forcing electric power systems into an unprecedented transition. This paper reports on power grid modernization and reliability issues related to the planning and operation of power systems with high levels of variable renewable energy. The contents of this paper stem from recent qualitative research in the form of a summary of an industry survey. The technical feedback from the interviewed 37 industry experts helped us identify 12 key areas of potential concern, which are discussed throughout this paper.
{"title":"Electric Power Industry Challenges due to Increasing Shares of Inverter-Based Resources in Power Systems","authors":"A. Sajadi, J. A. Rañola, R. Kenyon, B. Hodge, B. Mather","doi":"10.1109/ISGT-Europe54678.2022.9960625","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960625","url":null,"abstract":"The large-scale integration of variable renewable energy technologies around the world is forcing electric power systems into an unprecedented transition. This paper reports on power grid modernization and reliability issues related to the planning and operation of power systems with high levels of variable renewable energy. The contents of this paper stem from recent qualitative research in the form of a summary of an industry survey. The technical feedback from the interviewed 37 industry experts helped us identify 12 key areas of potential concern, which are discussed throughout this paper.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133767922","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 presents the overall advantage of introducing IEC 61850 communication protocol to exchange data information and operation requests between Advance Distribution Management System (ADMS) in a control center and Intelligent Electronic Devices (IEDs) in the field. The IEC 61850 standard defines communication protocols for IED in electrical substations. In the past 25 years, the standard has evolved, and many Distribution Power Utilities (DPU) incorporated it in their substations, primarily to lower total cost of using a device (install, configure, maintain). With the IEC 61850 standard, a real object-oriented approach for substation automation (SA) has been established and many additional benefits and values have been recognized such as automatic device discovery, standardized naming convention with power system context, eliminating device dependencies with standardized configuration, etc. While the IEC 61850 has been intensively used to communicate at a substation level, going beyond substation and establishing direct communication with the ADMS in control centers will provide more structural, stable, and cyber-secured approach. The paper describes main capabilities and characteristics of Schneider Electric EcoStruxure™ ADMS IEC 61850 communication protocol implementation. It also elaborates on how the implementation meets a utility’s use cases and reveals key benefits of utilizing the IEC61850 communication protocol in a DPU, thus helping it in the era of momentous change, decarbonization, decentralization and digitalization.
{"title":"Improving Operational Efficiency and Reducing Costs in Distribution Utility with the Use of IEC 61850 Communication Protocol","authors":"Danilo Bojović, Nebojša Obradović, Nebojša Kurjakov","doi":"10.1109/ISGT-Europe54678.2022.9960680","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960680","url":null,"abstract":"This paper presents the overall advantage of introducing IEC 61850 communication protocol to exchange data information and operation requests between Advance Distribution Management System (ADMS) in a control center and Intelligent Electronic Devices (IEDs) in the field. The IEC 61850 standard defines communication protocols for IED in electrical substations. In the past 25 years, the standard has evolved, and many Distribution Power Utilities (DPU) incorporated it in their substations, primarily to lower total cost of using a device (install, configure, maintain). With the IEC 61850 standard, a real object-oriented approach for substation automation (SA) has been established and many additional benefits and values have been recognized such as automatic device discovery, standardized naming convention with power system context, eliminating device dependencies with standardized configuration, etc. While the IEC 61850 has been intensively used to communicate at a substation level, going beyond substation and establishing direct communication with the ADMS in control centers will provide more structural, stable, and cyber-secured approach. The paper describes main capabilities and characteristics of Schneider Electric EcoStruxure™ ADMS IEC 61850 communication protocol implementation. It also elaborates on how the implementation meets a utility’s use cases and reveals key benefits of utilizing the IEC61850 communication protocol in a DPU, thus helping it in the era of momentous change, decarbonization, decentralization and digitalization.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127012269","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960621
Kathrin Walz, K. Rudion, Cristina-Maria Moraw, Martin Eilers
Electric truck charging will lead to new challenges for the power grid, which have been hardly addressed in the literature so far. However, due to the still low penetration level of electric trucks, it is difficult to yet analyze the grid impact of their charging profiles today based on the practical experiences. This paper, therefore, proposes an approach to integrate truck charging into time series-based probabilistic grid analysis. The applicability of the approach is demonstrated using a real industrial medium voltage grid from Germany. With the grid impact, the results show not only the clear need to deal more with electric truck charging in grid planning, but also the added value of using time series-based probabilistic grid simulations in this topic.
{"title":"Probabilistic Impact Assessment of Electric Truck Charging on a Medium Voltage Grid","authors":"Kathrin Walz, K. Rudion, Cristina-Maria Moraw, Martin Eilers","doi":"10.1109/ISGT-Europe54678.2022.9960621","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960621","url":null,"abstract":"Electric truck charging will lead to new challenges for the power grid, which have been hardly addressed in the literature so far. However, due to the still low penetration level of electric trucks, it is difficult to yet analyze the grid impact of their charging profiles today based on the practical experiences. This paper, therefore, proposes an approach to integrate truck charging into time series-based probabilistic grid analysis. The applicability of the approach is demonstrated using a real industrial medium voltage grid from Germany. With the grid impact, the results show not only the clear need to deal more with electric truck charging in grid planning, but also the added value of using time series-based probabilistic grid simulations in this topic.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132541808","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960377
Abhimanyu Kaushal, H. Ergun, D. Hertem
A transmission system operator requires frequency control ancillary services to ensure reliable and secure power system operation. With the increasing share of renewable generation and a decrease in the traditional resources for these services, it is crucial that the system operators can share these resources across different electricity markets in Europe. The increasing number of HVDC interconnections provides an attractive option for sharing these reserves. This paper presents a security-constrained optimal power flow based model to investigate the benefits of using HVDC systems for frequency containment reserves procurement. Different types of frequency containment reserves in the Nordic synchronous area are considered in the model. The proposed model is used on a representative test system using publicly available data to show that the use of the HVDC system results in a decrease in the cost of reserve procurement and thus leads to an increase in social welfare. The analysis shows that the availability of HVDC system capacity and reserve price influence the procurement decisions.
{"title":"Sharing frequency containment reserves with HVDC systems","authors":"Abhimanyu Kaushal, H. Ergun, D. Hertem","doi":"10.1109/ISGT-Europe54678.2022.9960377","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960377","url":null,"abstract":"A transmission system operator requires frequency control ancillary services to ensure reliable and secure power system operation. With the increasing share of renewable generation and a decrease in the traditional resources for these services, it is crucial that the system operators can share these resources across different electricity markets in Europe. The increasing number of HVDC interconnections provides an attractive option for sharing these reserves. This paper presents a security-constrained optimal power flow based model to investigate the benefits of using HVDC systems for frequency containment reserves procurement. Different types of frequency containment reserves in the Nordic synchronous area are considered in the model. The proposed model is used on a representative test system using publicly available data to show that the use of the HVDC system results in a decrease in the cost of reserve procurement and thus leads to an increase in social welfare. The analysis shows that the availability of HVDC system capacity and reserve price influence the procurement decisions.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133036105","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960472
Dejene Assefa Hagos, V. Novakovic
The potential contribution of non-price based demand response (specifically load shifting) and key CCHP technologies for increased integration of variable renewable energy (VRE) into a low carbon neighbourhood energy system has been investigated. Grid integrated CCHP based microgrid model is developed for a hypothetical model community in Trondheim city of Norway. The model run minimises the total system cost and optimises both the investments and operation costs while trading electricity with the main grid. The analysis is done for two distinct scenarios: (1) without load shifting and (2) with load shifting. Furthermore, in each scenario, four levels of heat pump capacity share in total heating capacity have been assumed. The results reveal that heat pump is a key heating technology in all scenarios, and the thermal contribution of hybrid solar photovoltaic thermal (PVT) is limited to 6%. The optimal VRE integration level ranges from 58% to 64%. The results also showed that, without load shifting, heat pumps enable to lower peak grid connection capacity and system cost by 33% to 47% and 12% to 14%, respectively. Whereas, with load shifting, the corresponding peak grid connection capacity and system cost reduction ranges from 42% to 92% and 13% to 17%, respectively.
{"title":"On the role of demand response and key CCHP technologies for increased integration of variable renewable energy into a microgrid","authors":"Dejene Assefa Hagos, V. Novakovic","doi":"10.1109/ISGT-Europe54678.2022.9960472","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960472","url":null,"abstract":"The potential contribution of non-price based demand response (specifically load shifting) and key CCHP technologies for increased integration of variable renewable energy (VRE) into a low carbon neighbourhood energy system has been investigated. Grid integrated CCHP based microgrid model is developed for a hypothetical model community in Trondheim city of Norway. The model run minimises the total system cost and optimises both the investments and operation costs while trading electricity with the main grid. The analysis is done for two distinct scenarios: (1) without load shifting and (2) with load shifting. Furthermore, in each scenario, four levels of heat pump capacity share in total heating capacity have been assumed. The results reveal that heat pump is a key heating technology in all scenarios, and the thermal contribution of hybrid solar photovoltaic thermal (PVT) is limited to 6%. The optimal VRE integration level ranges from 58% to 64%. The results also showed that, without load shifting, heat pumps enable to lower peak grid connection capacity and system cost by 33% to 47% and 12% to 14%, respectively. Whereas, with load shifting, the corresponding peak grid connection capacity and system cost reduction ranges from 42% to 92% and 13% to 17%, respectively.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"28 17","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114049775","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 : 2022-10-10DOI: 10.1109/ISGT-Europe54678.2022.9960431
Andrija Mitrovic, L. Strezoski
With constant increase in the number of wind power plants and thus their penetration in power production, system robustness and stability have become of a high interest. Due to their advantages, doubly fed inductions machines are mainly in use as generating units in wind power plants. While rotor windings are connected to the grid over power converters, stator windings are directly connected to the grid and thus these generating units are highly sensitive to voltage disturbances. Voltage drops during faults lead to high voltages and currents on rotor side due electromagnetic coupling between stator and rotor. These voltages and currents can damage expensive power electronics on the rotor side. In the past, to save the equipment, wind power plants with doubly fed induction machines have been disconnected from the grid during faults which is unacceptable today when the high number of these plants is considered. Grid operators require from these types of power sources to have fault ride through or low voltage ride through capabilities to support the grid during low voltage periods. This paper presents an overview of the currently existing techniques developed to enable fault ride through requirements for doubly fed induction machines, and consequently their influence on modeling these power plants for fault calculation and relay protection purposes.
{"title":"Impact of existing fault protections of wind power plants with Doubly Fed Induction Machines on Fault Currents","authors":"Andrija Mitrovic, L. Strezoski","doi":"10.1109/ISGT-Europe54678.2022.9960431","DOIUrl":"https://doi.org/10.1109/ISGT-Europe54678.2022.9960431","url":null,"abstract":"With constant increase in the number of wind power plants and thus their penetration in power production, system robustness and stability have become of a high interest. Due to their advantages, doubly fed inductions machines are mainly in use as generating units in wind power plants. While rotor windings are connected to the grid over power converters, stator windings are directly connected to the grid and thus these generating units are highly sensitive to voltage disturbances. Voltage drops during faults lead to high voltages and currents on rotor side due electromagnetic coupling between stator and rotor. These voltages and currents can damage expensive power electronics on the rotor side. In the past, to save the equipment, wind power plants with doubly fed induction machines have been disconnected from the grid during faults which is unacceptable today when the high number of these plants is considered. Grid operators require from these types of power sources to have fault ride through or low voltage ride through capabilities to support the grid during low voltage periods. This paper presents an overview of the currently existing techniques developed to enable fault ride through requirements for doubly fed induction machines, and consequently their influence on modeling these power plants for fault calculation and relay protection purposes.","PeriodicalId":311595,"journal":{"name":"2022 IEEE PES Innovative Smart Grid Technologies Conference Europe (ISGT-Europe)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122878558","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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