Pub Date : 2022-10-09DOI: 10.1109/IAS54023.2022.9939910
S. Saleh
This paper develops and tests a method for balancing capacitor voltages in 7-level flying-capacitor (FC) inverters, which are operated by the wavelet modulation (WM) technique. This multi-level inverter has two capacitors in each pole, whose voltages deviate due to changes in its loading level. In order to ensure that all switching elements experience identical voltage stresses and no circulating currents, the voltage across each capacitor has to be maintained very close to its reference value. The proposed method to balance the capacitor voltage is based on adjusting the scales of resolution segmented wavelet basis functions, which are used as switching signals to operate a 7-level FC inverter. The adjustments of the scales can vary the widths and locations of switching pulses produced by the WM technique. The proposed capacitor voltage method is structured using a proportional-integral controller to adjust the scales, thus balancing the capacitor voltages. The accuracy, effectiveness, and response speed of the proposed method to balance capacitor voltage are demonstrated through simulation and experimental test cases.
{"title":"Balancing Capacitor Voltages in 7-Level Single Phase Flying-Capacitor Wavelet Modulated Inverters","authors":"S. Saleh","doi":"10.1109/IAS54023.2022.9939910","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939910","url":null,"abstract":"This paper develops and tests a method for balancing capacitor voltages in 7-level flying-capacitor (FC) inverters, which are operated by the wavelet modulation (WM) technique. This multi-level inverter has two capacitors in each pole, whose voltages deviate due to changes in its loading level. In order to ensure that all switching elements experience identical voltage stresses and no circulating currents, the voltage across each capacitor has to be maintained very close to its reference value. The proposed method to balance the capacitor voltage is based on adjusting the scales of resolution segmented wavelet basis functions, which are used as switching signals to operate a 7-level FC inverter. The adjustments of the scales can vary the widths and locations of switching pulses produced by the WM technique. The proposed capacitor voltage method is structured using a proportional-integral controller to adjust the scales, thus balancing the capacitor voltages. The accuracy, effectiveness, and response speed of the proposed method to balance capacitor voltage are demonstrated through simulation and experimental test cases.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133243219","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939990
Mahdi Rouholamini, Caisheng Wang
Successful primary frequency regulation is vital for power systems to survive generation outage contingencies. Thus, this paper goes over concurrent scheduling of energy and primary frequency control reserves in the shape of a Mixed Integer Linear Programming model. The problem is formulated based on the fact that primary reserves share a single common degree of freedom through their local droop characteristics. We modify and utilize the Benders Decomposition (BD) algorithm to solve the model. A few techniques are introduced to reduce the search space of the Benders master problem. Furthermore, a new method is introduced to generate the BD's feasibility cuts. Finally, numeric results are presented and discussed to verify the proposed methodology.
{"title":"Modified Benders Decomposition for Simultaneous Provision of Energy and Primary Reserve","authors":"Mahdi Rouholamini, Caisheng Wang","doi":"10.1109/IAS54023.2022.9939990","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939990","url":null,"abstract":"Successful primary frequency regulation is vital for power systems to survive generation outage contingencies. Thus, this paper goes over concurrent scheduling of energy and primary frequency control reserves in the shape of a Mixed Integer Linear Programming model. The problem is formulated based on the fact that primary reserves share a single common degree of freedom through their local droop characteristics. We modify and utilize the Benders Decomposition (BD) algorithm to solve the model. A few techniques are introduced to reduce the search space of the Benders master problem. Furthermore, a new method is introduced to generate the BD's feasibility cuts. Finally, numeric results are presented and discussed to verify the proposed methodology.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122900144","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939788
Md. Biplob Hossain, Md. Rabiul Islam, K. Muttaqi, D. Sutanto, A. Agalgaonkar
As the percentage of renewable energy sources grows, excess electrical power from renewables can be converted using electrolyzers to produce hydrogen, which can be stored, and later utilized by industries, homes, or the transportation system. Further, electrolyzers can also be utilized for frequency and voltage control to improve the stability of the power system. In this paper, a novel electrical circuit model for a 400W PEM electrolyzer is designed and validated using the experimental data from a reported paper for a 400W electrolyzer. To demonstrate its adaptive feature, the proposed 400W model is then scaled up to a 1 MW array by series and parallel connections, and the resulting system is validated by comparing it to another reported experimental results of a 1 MW stack. These results reveal that the developed model can reproduce very similar step responses to those obtained from experimental results from the reported 400W electrolyzer and the 1 MW stack. Finally, using the proposed electric circuit model, the step response of the equivalent circuit model to the step-change in the grid frequency has been investigated and the results show that the electrolyzers can respond to frequency step change faster than traditional generators demonstrating that employing electrolyzers can have a great potential to improve frequency stability.
{"title":"Dynamic Electrical Equivalent Circuit Modeling of the Grid-Scale Proton Exchange Membrane Electrolyzer for Ancillary Services","authors":"Md. Biplob Hossain, Md. Rabiul Islam, K. Muttaqi, D. Sutanto, A. Agalgaonkar","doi":"10.1109/IAS54023.2022.9939788","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939788","url":null,"abstract":"As the percentage of renewable energy sources grows, excess electrical power from renewables can be converted using electrolyzers to produce hydrogen, which can be stored, and later utilized by industries, homes, or the transportation system. Further, electrolyzers can also be utilized for frequency and voltage control to improve the stability of the power system. In this paper, a novel electrical circuit model for a 400W PEM electrolyzer is designed and validated using the experimental data from a reported paper for a 400W electrolyzer. To demonstrate its adaptive feature, the proposed 400W model is then scaled up to a 1 MW array by series and parallel connections, and the resulting system is validated by comparing it to another reported experimental results of a 1 MW stack. These results reveal that the developed model can reproduce very similar step responses to those obtained from experimental results from the reported 400W electrolyzer and the 1 MW stack. Finally, using the proposed electric circuit model, the step response of the equivalent circuit model to the step-change in the grid frequency has been investigated and the results show that the electrolyzers can respond to frequency step change faster than traditional generators demonstrating that employing electrolyzers can have a great potential to improve frequency stability.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123960884","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939735
T. Tsovilis, A. Y. Hadjicostas, E. T. Staikos, George D. Peppas
This work provides an electromagnetic transient model for low-voltage surge protective devices connected to the dc side of electric vehicle charging stations with a maximum operating voltage of 1000 V. An equivalent circuit model is developed based on standard impulse voltage ($1.2/50 mumathrm{s}$) and impulse current ($8/20 mumathrm{s}$ and $10/350 mumathrm{s}$) experiments. The proposed model reproduces quite accurately the response of the combination type surge protective device under study in terms of sparkover voltage, residual voltage, and energy absorption, as illustrated through ATP-EMTP simulations. The developed simulation model can be an effective tool for surge protection and insulation coordination studies for electric vehicle charging stations.
本文为最大工作电压为1000v的电动汽车充电站直流侧低压浪涌保护装置提供了一个电磁暂态模型。基于标准冲击电压($1.2/50 mu mathm {s}$)和冲击电流($8/20 mu mathm {s}$和$10/350 mathm {s}$)实验，建立了等效电路模型。所提出的模型非常准确地再现了所研究的组合式浪涌保护装置在火花电压、剩余电压和能量吸收方面的响应，如ATP-EMTP仿真所示。所建立的仿真模型可为电动汽车充电站的电涌保护和绝缘协调研究提供有效工具。
{"title":"Modeling the Transient Behavior of Surge Protective Devices Connected to the DC Side of Electric Vehicle Charging Stations","authors":"T. Tsovilis, A. Y. Hadjicostas, E. T. Staikos, George D. Peppas","doi":"10.1109/IAS54023.2022.9939735","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939735","url":null,"abstract":"This work provides an electromagnetic transient model for low-voltage surge protective devices connected to the dc side of electric vehicle charging stations with a maximum operating voltage of 1000 V. An equivalent circuit model is developed based on standard impulse voltage ($1.2/50 mumathrm{s}$) and impulse current ($8/20 mumathrm{s}$ and $10/350 mumathrm{s}$) experiments. The proposed model reproduces quite accurately the response of the combination type surge protective device under study in terms of sparkover voltage, residual voltage, and energy absorption, as illustrated through ATP-EMTP simulations. The developed simulation model can be an effective tool for surge protection and insulation coordination studies for electric vehicle charging stations.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128405543","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939852
M. Uddin, N. Rezaei, Md. Shamsul Arifin
This paper presents the analysis of several hybrid intelligent protection and control algorithms to improve the reliability of doubly-fed induction generator (DFIG)-based wind farms during faults, and other dynamic operating conditions. First, a decision tree (DT) classification algorithm is developed as a fault classifier for the purpose of distinguishing between different types of faults, as well as normal operation and grid disturbances. Next, a support vector machine (SVM) as a fault location estimator and zonal protection scheme is proposed to assist with the decision-making process of distance relay by detecting the location of any type of fault on the transmission line, and precise line zoning protection with a high reliability. Lastly, a combined direct PI control-based scheme is developed for both rotor and grid side converters of the DFIG based wind energy conversion system (WECS). This scheme avoids extra PI based current loop to achieve robust performance at the time of grid side voltage dip as well as normal operating condition. In this research, MATLAB and WEKA software are used for developing, training and testing the proposed machine learning algorithms and designing proposed control scheme, while ETAP and PSCAD software are used for design, modelling, fault analysis and data acquisition of the wind farm, as well as testing the operation of distance relays for various conditions. The analysis of the proposed intelligent protection and control schemes exhibits satisfactory results in improving the reliability and stability of grid-connected wind farms.
{"title":"Hybrid Machine Learning-based Intelligent Distance Protection and Control Schemes with Fault and Zonal Classification Capabilities for Grid-connected Wind Farms","authors":"M. Uddin, N. Rezaei, Md. Shamsul Arifin","doi":"10.1109/IAS54023.2022.9939852","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939852","url":null,"abstract":"This paper presents the analysis of several hybrid intelligent protection and control algorithms to improve the reliability of doubly-fed induction generator (DFIG)-based wind farms during faults, and other dynamic operating conditions. First, a decision tree (DT) classification algorithm is developed as a fault classifier for the purpose of distinguishing between different types of faults, as well as normal operation and grid disturbances. Next, a support vector machine (SVM) as a fault location estimator and zonal protection scheme is proposed to assist with the decision-making process of distance relay by detecting the location of any type of fault on the transmission line, and precise line zoning protection with a high reliability. Lastly, a combined direct PI control-based scheme is developed for both rotor and grid side converters of the DFIG based wind energy conversion system (WECS). This scheme avoids extra PI based current loop to achieve robust performance at the time of grid side voltage dip as well as normal operating condition. In this research, MATLAB and WEKA software are used for developing, training and testing the proposed machine learning algorithms and designing proposed control scheme, while ETAP and PSCAD software are used for design, modelling, fault analysis and data acquisition of the wind farm, as well as testing the operation of distance relays for various conditions. The analysis of the proposed intelligent protection and control schemes exhibits satisfactory results in improving the reliability and stability of grid-connected wind farms.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114345571","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9940122
H. Habib, Trupal Patel, S. Brahma
- Several challenges arise when designing an adequate protection scheme for transmission systems with inverter-based resources. The communication network plays a vital role in helping the protective relays to overcome the complexities of the architecture and provide a suitable protection technique. This paper presents a co-simulation platform linking the simulated model of the modified IEEE 14 bus transmission system simulated on the RTDS simulator and the commercial SEL-421 protective relays to protect the system. The protection scheme utilizes voltage signals from the buses to identify the faulted section and determine the fault type. Voltages and currents are communicated to the relays by sending SV messages from RTDS to the relays using the GTNETx2 interface, synchronized by the GTSYNC interface card and SEL-2488 Satellite-Synchronized Network Clock. Several cases were simulated to investigate the protection system under breaker and relay failures to provide a suitable backup solution and allow the healthy feeders to serve the system during abnormal conditions. The real-time results show the capability of the suggested protection scheme.
{"title":"Hardware in the Loop Testing of Main and Backup Protection Scheme for Systems with High Penetration of Inverter-Based Resources","authors":"H. Habib, Trupal Patel, S. Brahma","doi":"10.1109/IAS54023.2022.9940122","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9940122","url":null,"abstract":"- Several challenges arise when designing an adequate protection scheme for transmission systems with inverter-based resources. The communication network plays a vital role in helping the protective relays to overcome the complexities of the architecture and provide a suitable protection technique. This paper presents a co-simulation platform linking the simulated model of the modified IEEE 14 bus transmission system simulated on the RTDS simulator and the commercial SEL-421 protective relays to protect the system. The protection scheme utilizes voltage signals from the buses to identify the faulted section and determine the fault type. Voltages and currents are communicated to the relays by sending SV messages from RTDS to the relays using the GTNETx2 interface, synchronized by the GTSYNC interface card and SEL-2488 Satellite-Synchronized Network Clock. Several cases were simulated to investigate the protection system under breaker and relay failures to provide a suitable backup solution and allow the healthy feeders to serve the system during abnormal conditions. The real-time results show the capability of the suggested protection scheme.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114362318","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939728
Tingting Yao, Yueshi Guan, Qing Cheng, Yijie Wang, M. D. Dalla Costa, M. Alonso, Dianguo Xu, W. Wang
To address the low voltage gain problem of traditional $Y$ source converter, the novel structure is proposed in which a series switched inductor structure adopted to further improve the step-up ability. Compared with the conventional improved Y-source topology, the proposed new topologies relocate the semiconductor from the high voltage location to the low voltage location, which effectively reduces the rated voltage of the switching device. Besides, and the topology combines different boost modules, which effectively improve the boost ability. Based on above analysis, the corresponding prototypes are built, as the experimental results shown, the step-up ability can be improved and also there is no large voltage spikes.
{"title":"High Performance Y-source Converters Based on Switched Inductor","authors":"Tingting Yao, Yueshi Guan, Qing Cheng, Yijie Wang, M. D. Dalla Costa, M. Alonso, Dianguo Xu, W. Wang","doi":"10.1109/IAS54023.2022.9939728","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939728","url":null,"abstract":"To address the low voltage gain problem of traditional $Y$ source converter, the novel structure is proposed in which a series switched inductor structure adopted to further improve the step-up ability. Compared with the conventional improved Y-source topology, the proposed new topologies relocate the semiconductor from the high voltage location to the low voltage location, which effectively reduces the rated voltage of the switching device. Besides, and the topology combines different boost modules, which effectively improve the boost ability. Based on above analysis, the corresponding prototypes are built, as the experimental results shown, the step-up ability can be improved and also there is no large voltage spikes.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114579277","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939708
S. Guzman, A. Ustariz-Farfán, E. Cano-Plata
This paper proposes a sentinel system to overcome hidden failures that affect legacy protection functions of line conductors. This system overcomes the drawbacks of legacy protection functions due hidden failures by implementing a new global deviation factor of ideal conditions of electrical systems. This approach allows to overcome non detectable faults that lead to missoperations and selectivity problems. The application results of the proposed system are shown on a steel manufacturer user showing its improvements. Also, this sentinel system is implemented in a real time environment to test its performance. This paper allows to identify some of the problems of legacy protection functions and identify some benefits in the new horizons of line conductor protection.
{"title":"Steelmaking Line Protection Legacy Functions and New Horizons","authors":"S. Guzman, A. Ustariz-Farfán, E. Cano-Plata","doi":"10.1109/IAS54023.2022.9939708","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939708","url":null,"abstract":"This paper proposes a sentinel system to overcome hidden failures that affect legacy protection functions of line conductors. This system overcomes the drawbacks of legacy protection functions due hidden failures by implementing a new global deviation factor of ideal conditions of electrical systems. This approach allows to overcome non detectable faults that lead to missoperations and selectivity problems. The application results of the proposed system are shown on a steel manufacturer user showing its improvements. Also, this sentinel system is implemented in a real time environment to test its performance. This paper allows to identify some of the problems of legacy protection functions and identify some benefits in the new horizons of line conductor protection.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"199 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115803761","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939894
Chao Feng, Yanli Zhang, Q. Chi
In order to improve the transmission efficiency, a novel rotary transformer with nanocrystalline strip as the core material is proposed to power electrical equipment on the rotating shaft. The magnetic properties of the high-frequency core material are measured under the excitation of sine wave and square wave respectively. An improved Steinmetz empirical equation is proposed by studying the nonlinearity of the Steinmetz empirical coefficient at different characteristic frequencies. The structure of the rotary transformer is designed, and the core loss is calculated using the proposed loss model. An effective wireless power transmission is obtained, which provides a new scheme for the design of rotary transformers.
{"title":"Design of a Novel Rotary Transformer with Accurate Prediction of N anocrystalline Alloy Core Loss using Improved Steinmetz Formulation","authors":"Chao Feng, Yanli Zhang, Q. Chi","doi":"10.1109/IAS54023.2022.9939894","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939894","url":null,"abstract":"In order to improve the transmission efficiency, a novel rotary transformer with nanocrystalline strip as the core material is proposed to power electrical equipment on the rotating shaft. The magnetic properties of the high-frequency core material are measured under the excitation of sine wave and square wave respectively. An improved Steinmetz empirical equation is proposed by studying the nonlinearity of the Steinmetz empirical coefficient at different characteristic frequencies. The structure of the rotary transformer is designed, and the core loss is calculated using the proposed loss model. An effective wireless power transmission is obtained, which provides a new scheme for the design of rotary transformers.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125378476","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 : 2022-10-09DOI: 10.1109/IAS54023.2022.9939908
Surya Chandra Gulipalli, Yen-Ming Chen, Tingshan Liu, C. Chu
This paper proposes an active Islanding Detection Method (IDM) integrating Frequency Locked-Loop (FLL) for detection of voltage phase and frequency at the point of common coupling (PCC) and modified Auto Phase Shift (APS) method for three phase Distributed Energy Resource (DER) serving a local RLC load. The FLL is composed of a double second-order generalized integrator (DSOGI) to attenuate the harmonics and pass the fundamental positive sequence components in a frequency adaptive manner. Different from traditional APS methods, a new variable frequency term with an exponential factor is injected into the phase shift algorithm to reduce the Non-detection Zone (NDZ) during the case of DER power matching with the local load demand. This modified approach enables the decentralized power generation system to detect the islanding phenomenon more quickly. Simulations and experimental tests conducted on a DG system on OPALRT (OP5600) and hardware test-bed demonstrate the behaviour of the proposed model within IEEE Standards.
{"title":"Frequency-Locked Loop based New Automatic Phase-Shift Method for Active Islanding Detection of Three-Phase MicroGrid","authors":"Surya Chandra Gulipalli, Yen-Ming Chen, Tingshan Liu, C. Chu","doi":"10.1109/IAS54023.2022.9939908","DOIUrl":"https://doi.org/10.1109/IAS54023.2022.9939908","url":null,"abstract":"This paper proposes an active Islanding Detection Method (IDM) integrating Frequency Locked-Loop (FLL) for detection of voltage phase and frequency at the point of common coupling (PCC) and modified Auto Phase Shift (APS) method for three phase Distributed Energy Resource (DER) serving a local RLC load. The FLL is composed of a double second-order generalized integrator (DSOGI) to attenuate the harmonics and pass the fundamental positive sequence components in a frequency adaptive manner. Different from traditional APS methods, a new variable frequency term with an exponential factor is injected into the phase shift algorithm to reduce the Non-detection Zone (NDZ) during the case of DER power matching with the local load demand. This modified approach enables the decentralized power generation system to detect the islanding phenomenon more quickly. Simulations and experimental tests conducted on a DG system on OPALRT (OP5600) and hardware test-bed demonstrate the behaviour of the proposed model within IEEE Standards.","PeriodicalId":193587,"journal":{"name":"2022 IEEE Industry Applications Society Annual Meeting (IAS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126227880","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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