Pub Date : 2022-06-22DOI: 10.1109/speedam53979.2022.9841953
Cara-Nastasja Behrendt, J. Dittmann, B. Knebusch, B. Ponick
With the widespread use of inverters with increasing switching frequencies in three-phase AC machines, parasitic and harmful bearing currents with high frequencies may occur. To predict this problem in the design stage, the common-mode impedance can be used. Therefore, the aim of this paper is to propose a valid high frequency stator winding model based on transmission line theory, to identify the parameters of the high frequency machine behavior and to examine their influence. The proposed model is then used to calculate the common-mode impedance of an example machine for a wide frequency range. A cascaded solving algorithm for model parameter identification and efficient computation of the resulting network is given as well. Further, the parameters of the high frequency machine behavior will be varied. The result of the calculation performed using the model obtained and the influence of the model parameters are validated with a laboratory measurement on the chosen machine equipped with a hairpin winding. Thus the presented model, for the time being, only includes assumptions based on hairpin windings. Recommendations on further model extensions are derived from the results.
{"title":"Common-Mode Impedance Prediction of a High Frequency Hairpin Stator Winding Based on FEM and Modified Nodal Analysis","authors":"Cara-Nastasja Behrendt, J. Dittmann, B. Knebusch, B. Ponick","doi":"10.1109/speedam53979.2022.9841953","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9841953","url":null,"abstract":"With the widespread use of inverters with increasing switching frequencies in three-phase AC machines, parasitic and harmful bearing currents with high frequencies may occur. To predict this problem in the design stage, the common-mode impedance can be used. Therefore, the aim of this paper is to propose a valid high frequency stator winding model based on transmission line theory, to identify the parameters of the high frequency machine behavior and to examine their influence. The proposed model is then used to calculate the common-mode impedance of an example machine for a wide frequency range. A cascaded solving algorithm for model parameter identification and efficient computation of the resulting network is given as well. Further, the parameters of the high frequency machine behavior will be varied. The result of the calculation performed using the model obtained and the influence of the model parameters are validated with a laboratory measurement on the chosen machine equipped with a hairpin winding. Thus the presented model, for the time being, only includes assumptions based on hairpin windings. Recommendations on further model extensions are derived from the results.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133436973","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842095
Grégoire Le Goff, M. Fadel, M. Bodson
The main novelty of this paper is to introduce a new real-time optimized control allocation (CA) method of the currents scalable to any modular multilevel converter (MMC). It can be adapted to an MMC of any number of phases and (a) submodules (SM) without having to undergo changes in the control algorithm. First the scalable state-space model of the MMC currents is presented end than, this minimal order model is used to develop the scalable current control allocation method. The control allocation is computed by fast real-time optimization using linear programming and quadratic programming (b) algorithms. Three control allocation methods are Hardware-In- the-Loop tested for polyphase AC systems from 3 up to 101 phases, showing their ability to guarantee the current reference tracking as well as the scalability of the tracking performance. A comparison between the resolution methods highlights the benefits and pitfalls of each.
{"title":"Scalable Control Allocation: Real-time Optimized Current Control in the Modular Multilevel Converter for Polyphase Systems","authors":"Grégoire Le Goff, M. Fadel, M. Bodson","doi":"10.1109/speedam53979.2022.9842095","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842095","url":null,"abstract":"The main novelty of this paper is to introduce a new real-time optimized control allocation (CA) method of the currents scalable to any modular multilevel converter (MMC). It can be adapted to an MMC of any number of phases and (a) submodules (SM) without having to undergo changes in the control algorithm. First the scalable state-space model of the MMC currents is presented end than, this minimal order model is used to develop the scalable current control allocation method. The control allocation is computed by fast real-time optimization using linear programming and quadratic programming (b) algorithms. Three control allocation methods are Hardware-In- the-Loop tested for polyphase AC systems from 3 up to 101 phases, showing their ability to guarantee the current reference tracking as well as the scalability of the tracking performance. A comparison between the resolution methods highlights the benefits and pitfalls of each.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130270385","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842101
Johannes Liebrich, C. Kreischer
This paper investigates how static stress affects the critical temperature of a REBCO superconductor. For this purpose, a static force is applied to the conductor material and it is investigated whether the critical temperature changes. For the design of electrical applications such as electrical machines with superconducting windings, it is of great importance to know the critical transition temperature of superconductors. In particular, in the event of a fault, forces can occur and cause a high mechanical stress on the conductor. The influence of these material stresses is investigated in more detail in the following paper.
{"title":"Novel Method for Characterization of the Influence of Axial Tensile Stress on the Critical Temperature of High-Temperature Superconductor Windings in Electrical Machines","authors":"Johannes Liebrich, C. Kreischer","doi":"10.1109/speedam53979.2022.9842101","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842101","url":null,"abstract":"This paper investigates how static stress affects the critical temperature of a REBCO superconductor. For this purpose, a static force is applied to the conductor material and it is investigated whether the critical temperature changes. For the design of electrical applications such as electrical machines with superconducting windings, it is of great importance to know the critical transition temperature of superconductors. In particular, in the event of a fault, forces can occur and cause a high mechanical stress on the conductor. The influence of these material stresses is investigated in more detail in the following paper.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116827788","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842201
M. Jalilirad, Erfan Azimi, M. Mehrasa, Rui Martins, E. M. Rodrigues
This paper presents an optimal sliding mode control technique for a single-phase seven-level Switched-Capacitor inverter in grid-connected mode. The utilization of the proposed control makes it possible to properly supply the output changes under parameters mismatch. To this end, the current dynamics of the multilevel inverter are used to develop a closed-loop control description aiming at the assessment of a transfer function. Using the second-order responses of the converter currents, a cost function is minimized to achieve optimal values for the Sliding-Integral-Derivative control coefficients. Using the damping ratio and the cost function, a regulation coefficient is defined, and eventually, the variation trend of the coefficients is also evaluated through the stability margin improvement of the converter. The proposed control algorithm has good dynamics in transient load change condition with parameters mismatch. Eventually, this control algorithm is validated by simulation in the MATLAB SIMULINK environment and experimental results.
{"title":"An Optimal Sliding-Integral-Derivative (SID) Control of a Grid-Tied Multilevel Inverter under Parameters Mismatch","authors":"M. Jalilirad, Erfan Azimi, M. Mehrasa, Rui Martins, E. M. Rodrigues","doi":"10.1109/speedam53979.2022.9842201","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842201","url":null,"abstract":"This paper presents an optimal sliding mode control technique for a single-phase seven-level Switched-Capacitor inverter in grid-connected mode. The utilization of the proposed control makes it possible to properly supply the output changes under parameters mismatch. To this end, the current dynamics of the multilevel inverter are used to develop a closed-loop control description aiming at the assessment of a transfer function. Using the second-order responses of the converter currents, a cost function is minimized to achieve optimal values for the Sliding-Integral-Derivative control coefficients. Using the damping ratio and the cost function, a regulation coefficient is defined, and eventually, the variation trend of the coefficients is also evaluated through the stability margin improvement of the converter. The proposed control algorithm has good dynamics in transient load change condition with parameters mismatch. Eventually, this control algorithm is validated by simulation in the MATLAB SIMULINK environment and experimental results.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114511890","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842128
M. Valikhani, U. Schäfer
Most of the short circuit faults begin with an interturn fault caused by an insulation failure between winding turns. This can cause large circulating currents, which lead to high power losses, heating, and consequently further short circuits in the system. In mathematical modeling, this adds another dimension for the shorted turn to the system. Modelling a system with an interturn fault is the first step for the necessary diagnosis, prevention, and correction measures. This paper develops a mathematical dynamic model for a multiphase multi-circuit induction generator with 6 stator phases and 3 rotor phases for the application in the wind turbine systems.
{"title":"Modeling Interturn Fault for Multiphase Induction Generator in Wind Turbine Application","authors":"M. Valikhani, U. Schäfer","doi":"10.1109/speedam53979.2022.9842128","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842128","url":null,"abstract":"Most of the short circuit faults begin with an interturn fault caused by an insulation failure between winding turns. This can cause large circulating currents, which lead to high power losses, heating, and consequently further short circuits in the system. In mathematical modeling, this adds another dimension for the shorted turn to the system. Modelling a system with an interturn fault is the first step for the necessary diagnosis, prevention, and correction measures. This paper develops a mathematical dynamic model for a multiphase multi-circuit induction generator with 6 stator phases and 3 rotor phases for the application in the wind turbine systems.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134087417","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9841987
Konstantinos Ntontis, C. Martis
The scarcity and increasing price of rare earth magnets, forces researchers to design permanent magnet machines with a smaller volume of rare earth magnets. The aim of this paper is to propose and analyze a PM-less machine with respect to an interior permanent magnet synchronous machine (IPMSM). The IPMSM considered as reference machine in this paper is used in assisted power steering systems in the automotive industry. The proposed topology has the same stator (lamination, cross-section) and a rotor with flux barriers and permanent magnets.
{"title":"An Effort to Replace Interior Permanent Magnets Rotors with Assisted Reluctance Rotors","authors":"Konstantinos Ntontis, C. Martis","doi":"10.1109/speedam53979.2022.9841987","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9841987","url":null,"abstract":"The scarcity and increasing price of rare earth magnets, forces researchers to design permanent magnet machines with a smaller volume of rare earth magnets. The aim of this paper is to propose and analyze a PM-less machine with respect to an interior permanent magnet synchronous machine (IPMSM). The IPMSM considered as reference machine in this paper is used in assisted power steering systems in the automotive industry. The proposed topology has the same stator (lamination, cross-section) and a rotor with flux barriers and permanent magnets.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133389551","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842079
Javier A. Muñoz, Manuel A. Díaz, M. Rivera, A. Dekka
In photovoltaic (PV) systems, the effects of partial shading or dust accumulation on the panels can generate a large reduction in energy performance, because the panels have different maximum power points (MPP) under these conditions. These challenges have promoted the development of several PV microinverter topologies, among which is the sub-modular structure, which considers the PV panel without bypass diodes and perform a MPPT on each sub-module composing the structure, in this way, it is possible to reach the MPP individually, thus mitigating the reduction in energy performance. In this work, the sub-modular structure consisting of Push-Pull microinverters with DC-link is presented. The viability of the topology and control proposal is checked by computer simulations, presenting the main results.
{"title":"Push-Pull Microinverter based on a Sub-modular Structure","authors":"Javier A. Muñoz, Manuel A. Díaz, M. Rivera, A. Dekka","doi":"10.1109/speedam53979.2022.9842079","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842079","url":null,"abstract":"In photovoltaic (PV) systems, the effects of partial shading or dust accumulation on the panels can generate a large reduction in energy performance, because the panels have different maximum power points (MPP) under these conditions. These challenges have promoted the development of several PV microinverter topologies, among which is the sub-modular structure, which considers the PV panel without bypass diodes and perform a MPPT on each sub-module composing the structure, in this way, it is possible to reach the MPP individually, thus mitigating the reduction in energy performance. In this work, the sub-modular structure consisting of Push-Pull microinverters with DC-link is presented. The viability of the topology and control proposal is checked by computer simulations, presenting the main results.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125842527","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842279
Andrea Alessia Tavagnutti, S. Bertagna, D. Bosich, V. Bucci, G. Sulligoi
The innovation towards sustainable solutions is involving all the industrial sectors. In this context, the marine world is going through a great transition. The integration of renewable energy sources and the adoption of flexible power systems, like DC microgrids, are some powerful solutions to develop advanced and sustainable marine grids. These concepts are not only adopted in the onboard shipboard distribution, but also when conceiving supplying platforms and marinas. In this paper a flexible DC microgrid is proposed for a yacht-marina, and a coordinated power control is presented. The ships at berth, renewable sources and energy storages are all connected through multiple power converters. A centralized controller is demanded in managing sources and loads. By properly coordinating the photovoltaic modules, landed/embarked storage and power flows to/from the main grid, the attained goal is the sustainable operation of the yacht-marina DC microgrid.
{"title":"Coordinated Power Control for Flexible and Sustainable Operation of DC microgrids in Yacht Marinas","authors":"Andrea Alessia Tavagnutti, S. Bertagna, D. Bosich, V. Bucci, G. Sulligoi","doi":"10.1109/speedam53979.2022.9842279","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842279","url":null,"abstract":"The innovation towards sustainable solutions is involving all the industrial sectors. In this context, the marine world is going through a great transition. The integration of renewable energy sources and the adoption of flexible power systems, like DC microgrids, are some powerful solutions to develop advanced and sustainable marine grids. These concepts are not only adopted in the onboard shipboard distribution, but also when conceiving supplying platforms and marinas. In this paper a flexible DC microgrid is proposed for a yacht-marina, and a coordinated power control is presented. The ships at berth, renewable sources and energy storages are all connected through multiple power converters. A centralized controller is demanded in managing sources and loads. By properly coordinating the photovoltaic modules, landed/embarked storage and power flows to/from the main grid, the attained goal is the sustainable operation of the yacht-marina DC microgrid.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126143591","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842179
M. Comanescu
The paper presents a chattering reduction method for a certain class of estimators: sliding mode observers with sinusoidal states. Estimation problems for common AC machines like the Induction Motor (IM) and Permanent Magnet Synchronous Motor (PMSM) involve working with dynamic systems with sinusoidal states (currents, fluxes, EMFs). In Direct Field orientation control, the fluxes or EMFs can be estimated using a sliding mode observer, this uses discontinuous feedback terms of the type $Mcdot sign(s)$. These high frequency switching terms produce chattering, especially when operating with noisy measurements. The paper presents a method to reduce chattering: this is done by partially replacing the switching terms with their continuous equivalents. First, a subset of the observer equations is implemented, the sliding mode terms are generated and filtered to obtain the equivalent controls (which are continuous signals). Then, the equivalent controls are used to partially replace the switching terms in the remainder of the observer equations. The paper presents an observer for the induction machine as a design example. The paper also shows the complex coefficient filter used to process the switching terms to obtain the equivalent controls.
{"title":"Chattering Reduction in Sliding Mode Observers with Sinusoidal States using Continuous Equivalent Control Feedback","authors":"M. Comanescu","doi":"10.1109/speedam53979.2022.9842179","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842179","url":null,"abstract":"The paper presents a chattering reduction method for a certain class of estimators: sliding mode observers with sinusoidal states. Estimation problems for common AC machines like the Induction Motor (IM) and Permanent Magnet Synchronous Motor (PMSM) involve working with dynamic systems with sinusoidal states (currents, fluxes, EMFs). In Direct Field orientation control, the fluxes or EMFs can be estimated using a sliding mode observer, this uses discontinuous feedback terms of the type $Mcdot sign(s)$. These high frequency switching terms produce chattering, especially when operating with noisy measurements. The paper presents a method to reduce chattering: this is done by partially replacing the switching terms with their continuous equivalents. First, a subset of the observer equations is implemented, the sliding mode terms are generated and filtered to obtain the equivalent controls (which are continuous signals). Then, the equivalent controls are used to partially replace the switching terms in the remainder of the observer equations. The paper presents an observer for the induction machine as a design example. The paper also shows the complex coefficient filter used to process the switching terms to obtain the equivalent controls.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"26 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130416055","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 : 2022-06-22DOI: 10.1109/speedam53979.2022.9842220
R. Barbone, Riccardo Mandrioli, M. Ricco, R. F. Paternost, Vincenzo Cirimele, G. Grandi
The trolleybus system is already part of the urban environment of several metropolitan cities. In view of the emergence of smart cities, it appears reasonable to look at how the trolleybus grid can become a more active part of the urban’s electricity network. However, the infrastructure design approaches adopted so far make the current trolleybus networks overdesigned to handle the improbable worst-traffic case scenarios. Consequently, the trolleybus electrical supply system is both underutilized and oversized. Through modeling, simulations, and a cluster of measured trolleybus and corresponding network data, various new functionalities may be explored, among which electric vehicle chargers and energization of auxiliary equipment, towards a more sustainable and smart trolleybus grid. This paper merges the authors’ engineering knowledge and sources available in the literature on designing and modelling trolleybus networks and performs a critical review of them to lay the foundations for proposing possible optimal alternatives. Being the city of Bologna organized with multiple electrically powered zones with either basic or complex topologies, the respective trolleybus system has been chosen as a case study.
{"title":"Modelling Trolleybus Networks: a Critical Review","authors":"R. Barbone, Riccardo Mandrioli, M. Ricco, R. F. Paternost, Vincenzo Cirimele, G. Grandi","doi":"10.1109/speedam53979.2022.9842220","DOIUrl":"https://doi.org/10.1109/speedam53979.2022.9842220","url":null,"abstract":"The trolleybus system is already part of the urban environment of several metropolitan cities. In view of the emergence of smart cities, it appears reasonable to look at how the trolleybus grid can become a more active part of the urban’s electricity network. However, the infrastructure design approaches adopted so far make the current trolleybus networks overdesigned to handle the improbable worst-traffic case scenarios. Consequently, the trolleybus electrical supply system is both underutilized and oversized. Through modeling, simulations, and a cluster of measured trolleybus and corresponding network data, various new functionalities may be explored, among which electric vehicle chargers and energization of auxiliary equipment, towards a more sustainable and smart trolleybus grid. This paper merges the authors’ engineering knowledge and sources available in the literature on designing and modelling trolleybus networks and performs a critical review of them to lay the foundations for proposing possible optimal alternatives. Being the city of Bologna organized with multiple electrically powered zones with either basic or complex topologies, the respective trolleybus system has been chosen as a case study.","PeriodicalId":365235,"journal":{"name":"2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129874616","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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