Qingping Xia, Hua Han, Yao Liu, Zhangjie Liu, Yao Sun, M. Su
{"title":"A Novel Fully Distributed Cost Optimal Control Method for DC Microgrid","authors":"Qingping Xia, Hua Han, Yao Liu, Zhangjie Liu, Yao Sun, M. Su","doi":"10.23919/EPE20ECCEEurope43536.2020.9215763","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215763","url":null,"abstract":"This paper proposes an ADMM and observers based distributed cost optimal control method for DC microgrid. Unlike centralized control which need a central node communicate with all other nodes, the proposed fully distributed method, where DGs only change their information with their neighbors. Both global voltage recovery and total cost optimization are achieved in real time under the DGs' capacity limits. Finally, simulation results verify the anti-disturbance ability and effectiveness of the proposed method.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121523515","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}
{"title":"Power Decoupling Method of DC to Single-phase AC Converter using Flying Capacitor DC/DC Converter with Boundary Current Mode","authors":"Hiroki Watanabe, K. Kusaka, J. Itoh","doi":"10.23919/EPE20ECCEEurope43536.2020.9215921","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215921","url":null,"abstract":"In this paper, a flying capacitor DC/DC converter with the active power decoupling capability utilizing small inductor and capacitor is introduced. The single-phase AC power converters are widely employed such as the Photovoltaic (PV) generation systems. Typically, a bulky electrolytic capacitor is required as the energy buffer for the compensation of the double-line frequency power ripple in these applications. However, the drawback of the electrolytic capacitor is often mentioned such as the large volume, and short life-time due to the high environmental temperature. On the other hand, an active power decoupling method achieves the power ripple compensation with small firm or ceramic capacitor. As the one of the active power decoupling approach, the power decoupling control method for the flying capacitor DC/DC converter has been proposed. However, this control method is mentioned under the Continuous Current Mode (CCM) condition. Therefore, large inductor is necessary to limit the current ripple within CCM. The active power decoupling control method of the flying capacitor DC/DC converter with the Boundary Current Mode (BCM) is proposed in order to minimize the inductor in this paper. The validity of the proposed power decoupling control is confirmed by the experiment with 1-kW prototype circuit. As the experimental result, the DC-link voltage fluctuation due to the double-line frequency power ripple is reduced by 85.6% owing to the proposed control.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124147827","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}
Abdalla Hussein Mohamed, H. Vansompel, P. Sergeant
{"title":"Design of a circumscribing polygon wide bandgap based integrated modular motor drive topology with thermally decoupled windings and power converters","authors":"Abdalla Hussein Mohamed, H. Vansompel, P. Sergeant","doi":"10.23919/EPE20ECCEEurope43536.2020.9215699","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215699","url":null,"abstract":"In this paper, the design of an integrated modular motor drive topology based on the circumscribing polygon of the outer surface of the conventional cylindrical housing is introduced from the mechanical and the thermal point of view. The design of the shared machine and converter cooling system is optimized from the thermal point of view using computational fluid dynamics (CFD) simulations. A wide bandgap, specifically Gallium Nitride (GaN), based half-bridge converter module is designed and implemented for integration. For a case study of a machine of outer radius 75 mm, axial length 80 mm and six stator modules, the resulted surface area for each converter module is 80*87 mm2. The size of the converter module was reduced so as to exactly match the available surface around the machine. A method for the calculation of the maximum power per module is introduced resulting in 1032W per module for the case study considered in the paper. A method for the DC-link capacitor design is introduced and the influence of the stator phases connections on the DC-link current stress is explained. Experimental measurements are done on one segment of the proposed integration topology.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126333656","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}
A. Djerioui, A. Houari, M. Machmoum, M. Ghanes, T. Mesbahi, M. Benkhoris
{"title":"Grey Wolf Optimizer Based Predictive Torque Control for Electric Vehicle Applications","authors":"A. Djerioui, A. Houari, M. Machmoum, M. Ghanes, T. Mesbahi, M. Benkhoris","doi":"10.23919/EPE20ECCEEurope43536.2020.9215725","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215725","url":null,"abstract":"In this paper, an improved Predictive Torque Control (PTC) of a PMSM based on Grey Wolf Optimizer (GWO) is developed for smooth torque operation in electric vehicle applications (EVs). The fuel cell presents the main source and it is complemented with a quick power source (supercapacitors). The embedded Grew Wolf optimizer is used to solve the torque tracking tasks with minimal oscillations at low speed operation of PMSM drive. The new PTC algorithm can successfully ensure smooth time evolution of the torque and the speed. The design methodology is detailed and the provided simulation results show that the proposed PTC-GWO can be implemented in simulink, offering high performance in both steady and transient states of the PMSM drives even at low speed range.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"PP 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126449886","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}
{"title":"A new design of an air core transformer for Electric Vehicle On-Board Charger","authors":"Valentin Rigot, T. Phulpin, D. Sadarnac, J. Sakly","doi":"10.23919/EPE20ECCEEurope43536.2020.9215632","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215632","url":null,"abstract":"This paper compares two geometries of air core transformer, relevant for high frequency converters and high power densities: One logical toroidal, one innovative cylindrical. The manufacturing, the coupling parameter, the volume, and the flux leakage are examined in these topologies. The efficiency symbolizes a crucial parameter on power electronics, and a trade-off must ever be optimized between size and power. The proposed innovative structure permits to strongly increase the converter power density for an identical efficiency","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"PP 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126559345","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}
{"title":"Saliency Selection for Search-based AC Machine Low and Zero Speed Estimation Methods","authors":"K. Scicluna, C. Staines, R. Raute","doi":"10.23919/EPE20ECCEEurope43536.2020.9215819","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215819","url":null,"abstract":"This paper presents the analysis and selection of a suitable injection angle to be used with continuous pulsating injection and search-based sensorless control. Pulsating injection offers the possibility of different injection orientations in the stationary reference frame. The injection results in High-Frequency current signatures, which vary in shape and magnitude due to the multiple saliency harmonics on the experimental Permanent Magnet Synchronous Machine. The analysis and selection process presented in this paper aims to reduce the implementation time for robust sensorless control. Experimental results are presented for different injection angles and iq-current operating points.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122278182","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}
{"title":"Active Current and Energy Control for the Quasi-Three-Level Operation Mode of an Extended Modular Multilevel Converter Topology","authors":"Malte Lorenz, J. Kucka, A. Mertens","doi":"10.23919/EPE20ECCEEurope43536.2020.9215654","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215654","url":null,"abstract":"Recently, a Quasi-Three-Level Operation Mode for a new modular multilevel converter topology has been proposed. This paper presents a fundamental improvement of this operation mode which is achieved through a closed-loop branch current and energy control. The proposed approach uses the available degrees of freedom of the topology to actively balance the energies of the input capacitors and module capacitors. Moreover, the branch currents are controlled during both constant output voltage levels and transitions. In comparison to the operation mode from the literature, the proposed approach enables a stable operation with reduced input capacitances, module capacitances, peak branch currents, and converter losses. This is validated through simulations.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121734282","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}
{"title":"Compact Core Loss Model Based on an Effective Frequency for Arbitrary Core Excitations Including DC-Bias","authors":"E. Stenglein, M. Albach, T. Dürbaum","doi":"10.23919/EPE20ECCEEurope43536.2020.9215954","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215954","url":null,"abstract":"To predict core losses for arbitrary excitations, the quasi-static energy losses depending on the swing and the DC-bias of the magnetic flux density are multiplied by an effective frequency. Measurement results for various shapes of the magnetic flux density (e.g. sinusoidal and triangular waveforms) with and without DC-bias verify this compact model.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131640015","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}
Dai-Duong Tran, Sajib Chakraborty, Thomas Geury, J. Van Mierlo, M. El Baghdadi, O. Hegazy
{"title":"Dual-loop Control Scheme with Optimized Type-III Controller based on Genetic Algorithm for 6-phase Interleaved Converter in Electric Vehicle Drivetrains","authors":"Dai-Duong Tran, Sajib Chakraborty, Thomas Geury, J. Van Mierlo, M. El Baghdadi, O. Hegazy","doi":"10.23919/EPE20ECCEEurope43536.2020.9215809","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215809","url":null,"abstract":"This paper presents an optimization procedure using a genetic algorithm (GA) for the dual-loop control scheme based on type-III controllers in a 6-phase interleaved converter. Four different objective functions (i.e. integration of squared and absolute errors and their time-weighted variants) are selected as the fitness functions of the GA. Based on the optimization procedure, step and dynamic responses of current and voltage controllers are investigated for those objective functions in terms of overshoot and settling time. In this study, another approach called classical ‘k-factor’ is utilized as a benchmark for the proposed type-III controller. Furthermore, two experimental tests are performed on a 60kW SiC-based prototype to verify the controller performances. The obtained results have demonstrated that the optimized controller design exhibits better dynamic response compared to the conventional counterpart.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130814069","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}
Y. Liao, Tao Peng, M. Su, Yao Sun, Weijing Xiong, Guo Xu
{"title":"A Bidirectional DAB-LLC DCX to Achieve Voltage Regulation and Wide ZVS Range Capability","authors":"Y. Liao, Tao Peng, M. Su, Yao Sun, Weijing Xiong, Guo Xu","doi":"10.23919/EPE20ECCEEurope43536.2020.9215596","DOIUrl":"https://doi.org/10.23919/EPE20ECCEEurope43536.2020.9215596","url":null,"abstract":"To achieve both voltage regulation and high efficiency in a DCX, a bidirectional DAB-LLC converter is studied. In this structure, most of power flows through LLC, and DAB is used to regulate the output voltage, which can achieve wide ZVS range capability in both forward and backward direction.","PeriodicalId":241752,"journal":{"name":"2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131069300","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}