The power router (PR) based on power electronic technology is the core equipment of the energy internet (EI). For the PR, the common direct current (DC) bus structure is drawing more and more attention, in which the DC voltage stability is of vital importance. In the PR with the energy storage system (ESS), the DC/DC converter of ESS has significant effects on the DC bus voltage stability. Droop control is commonly used in the control of DC/DC converters in ESS. However, conventional droop control fails to provide the inertia to meet the demand for voltage stability. Hence, a virtual inertia control strategy with load current feedforward is proposed in this paper to strengthen the voltage stability. Firstly, the small-signal model of ESS is derived to find out the key factors that affect the DC bus voltage stability. Secondly, based on the analysis, an inertial droop control strategy is presented to provide inertia to the DC bus voltage, while a load current feedforward method is proposed to improve the voltage response performance during load transients. The stability analysis is also carried out to guide the controller designing. The validity of the proposed control strategy has been verified by the results from both MATLAB/Simulink and hardware-in-the-loop (HIL) simulation.
{"title":"A Virtual Inertia Control Strategy with Current Feedforward to Improve Voltage Stability for Power Router","authors":"Shaokun Niu, Tong Liu, Xi Liu, Qicai Ren, Zhiwei Chen, Alian Chen","doi":"10.1109/IECON48115.2021.9589922","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589922","url":null,"abstract":"The power router (PR) based on power electronic technology is the core equipment of the energy internet (EI). For the PR, the common direct current (DC) bus structure is drawing more and more attention, in which the DC voltage stability is of vital importance. In the PR with the energy storage system (ESS), the DC/DC converter of ESS has significant effects on the DC bus voltage stability. Droop control is commonly used in the control of DC/DC converters in ESS. However, conventional droop control fails to provide the inertia to meet the demand for voltage stability. Hence, a virtual inertia control strategy with load current feedforward is proposed in this paper to strengthen the voltage stability. Firstly, the small-signal model of ESS is derived to find out the key factors that affect the DC bus voltage stability. Secondly, based on the analysis, an inertial droop control strategy is presented to provide inertia to the DC bus voltage, while a load current feedforward method is proposed to improve the voltage response performance during load transients. The stability analysis is also carried out to guide the controller designing. The validity of the proposed control strategy has been verified by the results from both MATLAB/Simulink and hardware-in-the-loop (HIL) simulation.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"32 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126088685","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589107
R. Nasiri-Zarandi, Ahamdeza Karami-Shahnani, M. Toulabi
The direct-drive (gearless) permanent magnet generator system has a high potential for wind turbines because of its performance efficiency, robustness, low maintenance, and reliability compared to other generator systems. Transverse flux permanent magnet generators (TFPMGs) have high-power density and modular structures, making them a proper candidate for direct-drive wind turbine applications. The main disadvantage TFPMGs is the high cost of PMs and increment of PM demagnetization risk with rising temperature. This paper is dedicated to a comprehensive comparison of the three-phase constructed rare-earth and Ferrite TFPMGs considered in small-scale direct-drive wind generator applications (320 rpm, 3000 W). The comparison includes operation principles, design procedure, performance (in terms of analyzing methods, electric and magnetic characteristics), cost, materials, and structures. It will be shown that the Ferrite TFPMGs can have acceptable performance for low-cost wind turbines applications.
{"title":"Performance Comparison Between Rare-Earth and Ferrite-based PM Transverse Flux Generators for Small-Scale Direct-Drive Wind Turbine","authors":"R. Nasiri-Zarandi, Ahamdeza Karami-Shahnani, M. Toulabi","doi":"10.1109/IECON48115.2021.9589107","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589107","url":null,"abstract":"The direct-drive (gearless) permanent magnet generator system has a high potential for wind turbines because of its performance efficiency, robustness, low maintenance, and reliability compared to other generator systems. Transverse flux permanent magnet generators (TFPMGs) have high-power density and modular structures, making them a proper candidate for direct-drive wind turbine applications. The main disadvantage TFPMGs is the high cost of PMs and increment of PM demagnetization risk with rising temperature. This paper is dedicated to a comprehensive comparison of the three-phase constructed rare-earth and Ferrite TFPMGs considered in small-scale direct-drive wind generator applications (320 rpm, 3000 W). The comparison includes operation principles, design procedure, performance (in terms of analyzing methods, electric and magnetic characteristics), cost, materials, and structures. It will be shown that the Ferrite TFPMGs can have acceptable performance for low-cost wind turbines applications.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126150459","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589153
Charbel Zaghrini, G. Khoury, M. Fadel, R. Ghosn, F. Khatounian
This paper is dedicated to control-based energy optimization tools useful for the electric vehicles (EVs) propulsion chain, which puts in interaction an electric motor and its energy source static converter. It is essential in energy optimization studies to build an accurate simulation model that takes into account all possible losses of the propulsion chain components according to the operating point. For that reason, the present work provides an accurate loss analysis solution, by studying the various elements losses of an electric traction chain motorized by an Electrically-Excited Synchronous Motor (EESM). The machine power balance is established while taking copper and iron losses into account. Moreover, the inverter and chopper losses are evaluated while using a model based on a novel technique that consists in creating a modified version of output voltages affected by the inverter and chopper losses. Finally, all losses data are gathered in order to simulate the system on-line losses distribution and global efficiency for different operating conditions.
{"title":"On-line loss and global efficiency simulation tool for electric vehicles applications","authors":"Charbel Zaghrini, G. Khoury, M. Fadel, R. Ghosn, F. Khatounian","doi":"10.1109/IECON48115.2021.9589153","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589153","url":null,"abstract":"This paper is dedicated to control-based energy optimization tools useful for the electric vehicles (EVs) propulsion chain, which puts in interaction an electric motor and its energy source static converter. It is essential in energy optimization studies to build an accurate simulation model that takes into account all possible losses of the propulsion chain components according to the operating point. For that reason, the present work provides an accurate loss analysis solution, by studying the various elements losses of an electric traction chain motorized by an Electrically-Excited Synchronous Motor (EESM). The machine power balance is established while taking copper and iron losses into account. Moreover, the inverter and chopper losses are evaluated while using a model based on a novel technique that consists in creating a modified version of output voltages affected by the inverter and chopper losses. Finally, all losses data are gathered in order to simulate the system on-line losses distribution and global efficiency for different operating conditions.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123526929","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589170
Enhui Liu, Guangxing Niu, Xuan Wang, Bin Zhang
The state-of-health (SOH) is a critical factor in guaranteeing the safe operation and reliability of Lithium-ion battery-related equipment. One of the main challenges is the accuracy and practicality of health indicator (HI) extraction and suitable algorithm for SOH diagnosis and prognosis. This paper proposes a new method that implements an extended Kalman filter (EKF) with an external HI to diagnose and prognose the SOH of Lithium-ion batteries (LIBs) and the results are expressed in form of a probability distribution function (PDF). First, aging experiments are conducted on LIBs. Second, an HI that has a strong relation to the SOH of LIBs is extracted from the terminal voltage of batteries. Third, EKF algorithm is implemented to diagnose and prognose the SOH of batteries. Fourth, the proposed method is verified with a series of experiments. The results demonstrate the effectiveness of the proposed method in terms of SOH diagnostic and prognostic.
{"title":"SOH Diagnostic and Prognostic Based on External Health Indicator of Lithium-ion Batteries","authors":"Enhui Liu, Guangxing Niu, Xuan Wang, Bin Zhang","doi":"10.1109/IECON48115.2021.9589170","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589170","url":null,"abstract":"The state-of-health (SOH) is a critical factor in guaranteeing the safe operation and reliability of Lithium-ion battery-related equipment. One of the main challenges is the accuracy and practicality of health indicator (HI) extraction and suitable algorithm for SOH diagnosis and prognosis. This paper proposes a new method that implements an extended Kalman filter (EKF) with an external HI to diagnose and prognose the SOH of Lithium-ion batteries (LIBs) and the results are expressed in form of a probability distribution function (PDF). First, aging experiments are conducted on LIBs. Second, an HI that has a strong relation to the SOH of LIBs is extracted from the terminal voltage of batteries. Third, EKF algorithm is implemented to diagnose and prognose the SOH of batteries. Fourth, the proposed method is verified with a series of experiments. The results demonstrate the effectiveness of the proposed method in terms of SOH diagnostic and prognostic.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123544577","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589406
Zhe Guan, Tomofumi Okada, Toru Yamamoto
This paper addresses a regulation problem of non-linear systems via database-driven nonlinear generalized predictive controller without model information. In industrial processes, lots of controlled systems with unknown time-delay and strong nonlinearity, are difficult to be handled in terms of control performance. Advanced controllers are considered to be established to deal with those nonlinear systems. In several design methods, advanced controllers are designed based on model information. However, it is time- and cost-consuming to identify the model of controlled systems, and requires regular maintenance to maintain acceptable performance. The database-driven approach has been attracted attentions to tackle those issues without model information. The controller can be designed and tuned only based on data, which is the main feature of this approach. Besides, the database-driven approach can deal with strong nonlinear systems. Additionally, the Generalized Predictive Control (GPC) is one of predictive controllers and widely applied in industrial processes. The GPC controller is developed based on multi-step prediction, therefore, it is effective to those systems subject to unknown or time-delay. As a result, a nonlinear GPC controller in the proposed scheme inherits the advantage of GPC, and is also tuned by the database-driven approach. The effectiveness and benefits of the proposed scheme are demonstrated through a numerical simulation and a comparative study.
{"title":"Design of a Database-Driven Nonlinear Generalized Predictive Controller","authors":"Zhe Guan, Tomofumi Okada, Toru Yamamoto","doi":"10.1109/IECON48115.2021.9589406","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589406","url":null,"abstract":"This paper addresses a regulation problem of non-linear systems via database-driven nonlinear generalized predictive controller without model information. In industrial processes, lots of controlled systems with unknown time-delay and strong nonlinearity, are difficult to be handled in terms of control performance. Advanced controllers are considered to be established to deal with those nonlinear systems. In several design methods, advanced controllers are designed based on model information. However, it is time- and cost-consuming to identify the model of controlled systems, and requires regular maintenance to maintain acceptable performance. The database-driven approach has been attracted attentions to tackle those issues without model information. The controller can be designed and tuned only based on data, which is the main feature of this approach. Besides, the database-driven approach can deal with strong nonlinear systems. Additionally, the Generalized Predictive Control (GPC) is one of predictive controllers and widely applied in industrial processes. The GPC controller is developed based on multi-step prediction, therefore, it is effective to those systems subject to unknown or time-delay. As a result, a nonlinear GPC controller in the proposed scheme inherits the advantage of GPC, and is also tuned by the database-driven approach. The effectiveness and benefits of the proposed scheme are demonstrated through a numerical simulation and a comparative study.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123557999","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589330
G. Ghosh, R. VijuNair
With the advent of new electric vehicle technologies, research into electric vehicle chargers have also progressed immensely in the recent times. This paper discusses the modeling and design considerations involved in a bidirectional isolated electric vehicle charger. An electric vehicle charger comprises of a front end rectifier with power factor correction capability, with or without bidirectional feature cascaded with an isolated or non isolated DC-DC converter. The small signal impedance models of these converters are developed which aids in analysing the interaction between the two converters, while they try to meet their own control objectives. It is imperative to ensure that these interactions will not induce unintended oscillations at the DC link or instability in the cascaded system. Detailed simulation results of this cascaded system are presented to validate the analysis.
{"title":"Modeling and Design Considerations in the Control of an Isolated Bidirectional Electric Vehicle Charger","authors":"G. Ghosh, R. VijuNair","doi":"10.1109/IECON48115.2021.9589330","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589330","url":null,"abstract":"With the advent of new electric vehicle technologies, research into electric vehicle chargers have also progressed immensely in the recent times. This paper discusses the modeling and design considerations involved in a bidirectional isolated electric vehicle charger. An electric vehicle charger comprises of a front end rectifier with power factor correction capability, with or without bidirectional feature cascaded with an isolated or non isolated DC-DC converter. The small signal impedance models of these converters are developed which aids in analysing the interaction between the two converters, while they try to meet their own control objectives. It is imperative to ensure that these interactions will not induce unintended oscillations at the DC link or instability in the cascaded system. Detailed simulation results of this cascaded system are presented to validate the analysis.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125261728","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589897
A. Credo, G. Fabri, L. D. Leonardo, M. Villani
This paper presents a preliminary sizing procedure for a fluid shaped rotor of a Synchronous Reluctance motor and the design refinement by an optimization step. Starting from the definition of the fluid shaped barrier based on the Joukosky equation and on the analogy between the magnetic and mechanical equations, the preliminary design can be defined. The method uses the same approach of the other rotor shapes accurately changed to match the features of the fluid shaped rotor. This procedure is applied to a case study where the stator core is already defined. After the definition of the preliminary design a further optimization is carried out which involves an optimization algorithm linked to the Finite Element analysis. The preliminary and the optimized designs are then compared and discussed.
{"title":"Synchronous Reluctance Motor with fluid shaped barriers: preliminary and optimized design procedures","authors":"A. Credo, G. Fabri, L. D. Leonardo, M. Villani","doi":"10.1109/IECON48115.2021.9589897","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589897","url":null,"abstract":"This paper presents a preliminary sizing procedure for a fluid shaped rotor of a Synchronous Reluctance motor and the design refinement by an optimization step. Starting from the definition of the fluid shaped barrier based on the Joukosky equation and on the analogy between the magnetic and mechanical equations, the preliminary design can be defined. The method uses the same approach of the other rotor shapes accurately changed to match the features of the fluid shaped rotor. This procedure is applied to a case study where the stator core is already defined. After the definition of the preliminary design a further optimization is carried out which involves an optimization algorithm linked to the Finite Element analysis. The preliminary and the optimized designs are then compared and discussed.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"2014 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125693990","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589043
Zohra Charania, C. Iatrou, Valentin Khaydarov, Richard Jacob, R. Wittig, Heiner Bauer, S. Höppner, René Bachmann, Philipp Bauer, Hendrik Deckert, C. Mayr, G. Fettweis, L. Urbas
With the advent of the fourth industrial revolution i.e. Industry 4.0, plants and factories are becoming smarter and interconnected. The transitions demand vertical integration and seamless connectivity. For this purpose, there is a need for semantic communication between various devices including the heavily resource-constrained field devices. To address this, a real-time capable hardware-based implementation of a well-established semantic communication protocol, i.e. OPC Unified Architecture was designed and developed. This chip-based implementation is power-efficient and compact, making it suitable for the field level. The chip was analyzed and incorporated in a demonstrator as a proof of concept of its integration at field level in a plant module of the process industry. Various opportunities are also examined where the chip could be utilized to deliver benefits to existing and future technologies.
{"title":"Opportunities For A Hardware-Based OPC UA Server Implementation In Industry 4.0","authors":"Zohra Charania, C. Iatrou, Valentin Khaydarov, Richard Jacob, R. Wittig, Heiner Bauer, S. Höppner, René Bachmann, Philipp Bauer, Hendrik Deckert, C. Mayr, G. Fettweis, L. Urbas","doi":"10.1109/IECON48115.2021.9589043","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589043","url":null,"abstract":"With the advent of the fourth industrial revolution i.e. Industry 4.0, plants and factories are becoming smarter and interconnected. The transitions demand vertical integration and seamless connectivity. For this purpose, there is a need for semantic communication between various devices including the heavily resource-constrained field devices. To address this, a real-time capable hardware-based implementation of a well-established semantic communication protocol, i.e. OPC Unified Architecture was designed and developed. This chip-based implementation is power-efficient and compact, making it suitable for the field level. The chip was analyzed and incorporated in a demonstrator as a proof of concept of its integration at field level in a plant module of the process industry. Various opportunities are also examined where the chip could be utilized to deliver benefits to existing and future technologies.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"273 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126833032","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589237
Ignitious V. Mboweni, A. Abu-Mahfouz, Daniel T. Ramotsoela
The confidentiality, integrity and availability of critical infrastructure is crucial for any economy to operate efficiently. Water distribution critical infrastructure is a target of many attackers who aim to penetrate the system for malicious reasons. The use of cyber-physical systems (CPSs) in Water Distribution Systems unveils many vulnerabilities that attackers can use. Although preventative security mechanisms are put into place they too can be defeated, and in this case, a second layer of security is essential. Intrusion detection mechanisms are important reactive security mechanisms to limit the damage done by a successful attack in the system. In this paper machine learning (ML) techniques for anomaly detection (AD) are reviewed.
{"title":"A Machine Learning approach to Intrusion Detection in Water Distribution Systems – A Review","authors":"Ignitious V. Mboweni, A. Abu-Mahfouz, Daniel T. Ramotsoela","doi":"10.1109/IECON48115.2021.9589237","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589237","url":null,"abstract":"The confidentiality, integrity and availability of critical infrastructure is crucial for any economy to operate efficiently. Water distribution critical infrastructure is a target of many attackers who aim to penetrate the system for malicious reasons. The use of cyber-physical systems (CPSs) in Water Distribution Systems unveils many vulnerabilities that attackers can use. Although preventative security mechanisms are put into place they too can be defeated, and in this case, a second layer of security is essential. Intrusion detection mechanisms are important reactive security mechanisms to limit the damage done by a successful attack in the system. In this paper machine learning (ML) techniques for anomaly detection (AD) are reviewed.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"54 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115055635","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 : 2021-10-13DOI: 10.1109/IECON48115.2021.9589880
Zhishuang Wang, Ping-Jian Wang, Wen-Zhuang Jiang, Bo Li, Yuhui Zhao
DC microgrid can efficiently integrate the renewable energy sources, such as fuel cells and photovoltaic (PV) panels. However, due to the voltage mismatch between the low output voltage of renewable energy source and the high voltage of DC bus, a high voltage gain step-up converter interface between them is required. In this paper, a novel nonisolated DC/DC converter with high voltage gain is proposed. In addition to the high gain characteristic, the proposed converter provides ripple-free input current, which can prolong the service life of fuel cell and improve the generation efficiency of PV panels. Besides, lower voltage stresses of power switches and didoes contribute to enhancing converter efficiency. The operation principle, characteristics analysis and comparative study are also demonstrated in this paper. Finally, a 400W 40V/400V scaled-down experimental prototype is built to verify the converter performance and the theoretical analysis.
{"title":"A High Step-Up Nonisolated DC-DC Converter With Reduced Voltage Stress and Ripple-free Input Current","authors":"Zhishuang Wang, Ping-Jian Wang, Wen-Zhuang Jiang, Bo Li, Yuhui Zhao","doi":"10.1109/IECON48115.2021.9589880","DOIUrl":"https://doi.org/10.1109/IECON48115.2021.9589880","url":null,"abstract":"DC microgrid can efficiently integrate the renewable energy sources, such as fuel cells and photovoltaic (PV) panels. However, due to the voltage mismatch between the low output voltage of renewable energy source and the high voltage of DC bus, a high voltage gain step-up converter interface between them is required. In this paper, a novel nonisolated DC/DC converter with high voltage gain is proposed. In addition to the high gain characteristic, the proposed converter provides ripple-free input current, which can prolong the service life of fuel cell and improve the generation efficiency of PV panels. Besides, lower voltage stresses of power switches and didoes contribute to enhancing converter efficiency. The operation principle, characteristics analysis and comparative study are also demonstrated in this paper. Finally, a 400W 40V/400V scaled-down experimental prototype is built to verify the converter performance and the theoretical analysis.","PeriodicalId":443337,"journal":{"name":"IECON 2021 – 47th Annual Conference of the IEEE Industrial Electronics Society","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115332682","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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