Pub Date : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521988
Yi-Hsun Hsieh, F. Lee
Because of its simple modular structure and easy voltage scaling, the modular multilevel converter (MMC) is deemed the most suitable for high-voltage power conversion using relatively low-voltage devices. In most practices, the volume of the capacitors is more than 50% of the total module size. Hence, methods of reducing circulating energy and the size of the capacitor bank have been widely pursued. Even though a significant progress has been made toward reducing the capacitor voltage ripple, there is a lack of an effective modeling tool that enables a more systemic approach to address control strategies for system optimization. This paper proposes a method of modeling and control based on the state trajectory analysis and offers graphical visualization of the power throughput and circulating energy. Furthermore, through a coordinate transformation, a simple equivalent circuit model is developed leading to the establishment of the two control laws that enable maximum power throughput with minimum circulating energy.
{"title":"Modeling of the Modular Multilevel Converters Based on the State-Plane Analysis and $SigmaDelta$ Coordinate Transformation","authors":"Yi-Hsun Hsieh, F. Lee","doi":"10.1109/EPEPEMC.2018.8521988","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521988","url":null,"abstract":"Because of its simple modular structure and easy voltage scaling, the modular multilevel converter (MMC) is deemed the most suitable for high-voltage power conversion using relatively low-voltage devices. In most practices, the volume of the capacitors is more than 50% of the total module size. Hence, methods of reducing circulating energy and the size of the capacitor bank have been widely pursued. Even though a significant progress has been made toward reducing the capacitor voltage ripple, there is a lack of an effective modeling tool that enables a more systemic approach to address control strategies for system optimization. This paper proposes a method of modeling and control based on the state trajectory analysis and offers graphical visualization of the power throughput and circulating energy. Furthermore, through a coordinate transformation, a simple equivalent circuit model is developed leading to the establishment of the two control laws that enable maximum power throughput with minimum circulating energy.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121039336","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521920
Kouassi N’guessan, Navarro Nicolas, Letrouvé Tony, C. Hervé, Saudemont Christophe, F. Bruno, R. Benoit
This paper deals with a specific electrical railway section involving two classical power stations: Quai de la Gare and Les Ardoines. These two power stations surround Massena, a power station that has been made reversible by adding an IGBT inverter. The study is focussed on the dynamic modelling of both DC and AC parts of the aforementioned power stations in order to highlight the new energy flows that occur in this innovative configuration. The objective of this paper is to quantify the amount of energy recovered during braking phases with the new inverter. The studied case that implements a very basic traffic simulation shows that the train electrical braking power rises and the amount of energy recovered in twelve minutes can be valued to 7kwh.
本文讨论了一个特定的电气化铁路区段，涉及两个经典的发电站:Quai de la Gare和Les Ardoines。这两个电站围绕着马塞纳，马塞纳是一个通过添加IGBT逆变器实现可逆的电站。这项研究的重点是上述电站的直流和交流部分的动态建模，以突出在这种创新配置中出现的新能源流。本文的目的是量化在制动阶段的能量回收与新的逆变器的数量。通过一个非常基础的交通仿真研究案例表明，列车电制动功率上升，12分钟内回收的能量可达7kwh。
{"title":"Dynamic Modelling of Braking Energy Recovered Using a Bi-Directional Power Station on DC Railway Electrical Network","authors":"Kouassi N’guessan, Navarro Nicolas, Letrouvé Tony, C. Hervé, Saudemont Christophe, F. Bruno, R. Benoit","doi":"10.1109/EPEPEMC.2018.8521920","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521920","url":null,"abstract":"This paper deals with a specific electrical railway section involving two classical power stations: Quai de la Gare and Les Ardoines. These two power stations surround Massena, a power station that has been made reversible by adding an IGBT inverter. The study is focussed on the dynamic modelling of both DC and AC parts of the aforementioned power stations in order to highlight the new energy flows that occur in this innovative configuration. The objective of this paper is to quantify the amount of energy recovered during braking phases with the new inverter. The studied case that implements a very basic traffic simulation shows that the train electrical braking power rises and the amount of energy recovered in twelve minutes can be valued to 7kwh.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121827271","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521970
A. Shekhar, L. Ramirez-Elizondo, Zian Qin, P. Bauer
Back-to-back Modular multilevel converters (MMC) for medium voltage dc (MVDC) distribution link applications offer exciting opportunities due to its superior harmonic performance and high efficiency. Based on the steady state equations, it is shown that under specific active and reactive power operation, an increase in dc link voltage can be achieved without necessarily increasing the voltage seen by the MMC submodule components. Using steady state loss model, it is proved that the converter operating efficiency can be improved if this concept is applied.
{"title":"Modular Multilevel Converter Performance with Dynamic MVDC Distribution Link Voltage Rating","authors":"A. Shekhar, L. Ramirez-Elizondo, Zian Qin, P. Bauer","doi":"10.1109/EPEPEMC.2018.8521970","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521970","url":null,"abstract":"Back-to-back Modular multilevel converters (MMC) for medium voltage dc (MVDC) distribution link applications offer exciting opportunities due to its superior harmonic performance and high efficiency. Based on the steady state equations, it is shown that under specific active and reactive power operation, an increase in dc link voltage can be achieved without necessarily increasing the voltage seen by the MMC submodule components. Using steady state loss model, it is proved that the converter operating efficiency can be improved if this concept is applied.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125226608","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 : 2018-08-01DOI: 10.1109/PEMC41159.2018.8994818
P. Karlovsky, J. Bauer
Most of the railway traction vehicles are moved thanks to the transfer of traction, braking force by small contact area between wheels and rail (steal to steal contact). The ability of force transfer by contact area or also the sum of the contact area physical properties is called adhesion. In order to utilize maximum transferable force, a slip controller has to be added into traction drive control structure. Slip control method based on the adhesion slope characteristic detection requires addition of sweep signal into reference torque command. The sweep signal should have particular frequency and amplitude to ensure proper signal detection and thus slip controller function. This is simple for low power drives with relatively high modulation frequency of the traction inverter, but becomes complicated for high power drive with low switching frequency of the semiconductor devices. The paper studies possibility of the Model Predictive Control (MPC) strategy application to support the slip controller function. The considered slip controller is based on the speed and current response of the torque reference signal injection. Therefore, the controller requires high torque control accuracy. Results of MPC are compared with the Direct Torque Control (DTC) strategy that is often used for control of high power drives with induction motor (IM).
{"title":"Wheel slip determination capability of locomotive driven by model predictive control","authors":"P. Karlovsky, J. Bauer","doi":"10.1109/PEMC41159.2018.8994818","DOIUrl":"https://doi.org/10.1109/PEMC41159.2018.8994818","url":null,"abstract":"Most of the railway traction vehicles are moved thanks to the transfer of traction, braking force by small contact area between wheels and rail (steal to steal contact). The ability of force transfer by contact area or also the sum of the contact area physical properties is called adhesion. In order to utilize maximum transferable force, a slip controller has to be added into traction drive control structure. Slip control method based on the adhesion slope characteristic detection requires addition of sweep signal into reference torque command. The sweep signal should have particular frequency and amplitude to ensure proper signal detection and thus slip controller function. This is simple for low power drives with relatively high modulation frequency of the traction inverter, but becomes complicated for high power drive with low switching frequency of the semiconductor devices. The paper studies possibility of the Model Predictive Control (MPC) strategy application to support the slip controller function. The considered slip controller is based on the speed and current response of the torque reference signal injection. Therefore, the controller requires high torque control accuracy. Results of MPC are compared with the Direct Torque Control (DTC) strategy that is often used for control of high power drives with induction motor (IM).","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"74 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128038808","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521925
K. Fellah, M. Guiatni, T. Fricke, F. Holzapfel
This paper propose the design of a longitudinal flight multi-control blending autopilot system which aims to control both of the airspeed, the altitude and the pitch motion of an aircraft. The proposed controller has to perform different tasks during a flight mission such as holding altitude and following a desired flight path. The simulation is performed using the BADA database and Commercial-off-the-shelf (COTS) platform named ‘Xplane’ dedicated to flight simulation. This later gives the possibility to integrate different components (aircraft, UAV s, Ground vehicles, missiles…). These components are integrated in simulation based on both their dynamics and their virtual models. In this paper, the transition between the different flight modes in ensured for optimum handling qualities using the energy angle. We defined the command variables blend between attitude and flight path control. The obtained results for altitude and airspeed hold modes and pitch control demonstrate the satisfactory performances even in presence of external distubance.
{"title":"Longitudinal Flight Multi-Control Blending Verification Using COTS Based Simulation","authors":"K. Fellah, M. Guiatni, T. Fricke, F. Holzapfel","doi":"10.1109/EPEPEMC.2018.8521925","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521925","url":null,"abstract":"This paper propose the design of a longitudinal flight multi-control blending autopilot system which aims to control both of the airspeed, the altitude and the pitch motion of an aircraft. The proposed controller has to perform different tasks during a flight mission such as holding altitude and following a desired flight path. The simulation is performed using the BADA database and Commercial-off-the-shelf (COTS) platform named ‘Xplane’ dedicated to flight simulation. This later gives the possibility to integrate different components (aircraft, UAV s, Ground vehicles, missiles…). These components are integrated in simulation based on both their dynamics and their virtual models. In this paper, the transition between the different flight modes in ensured for optimum handling qualities using the energy angle. We defined the command variables blend between attitude and flight path control. The obtained results for altitude and airspeed hold modes and pitch control demonstrate the satisfactory performances even in presence of external distubance.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131477229","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521994
J. Parkkinen, N. Nevaranta, M. Niemelä, T. Lindh, J. Pyrhönen
Many manufacturing processes depend on accurate multi-axis movements. Development of drive technology has replaced the need of mechanical couplings and cams in synchronized manufacturing operations. In this paper motion synchronization of a biaxial linear tooth-belt drive is studied and, especially, the effects of the data communication's speed between the control system components on the motion synchronization successfulness is analyzed.
{"title":"Motion Synchronization of Biaxial Linear Tooth Belt Drive System","authors":"J. Parkkinen, N. Nevaranta, M. Niemelä, T. Lindh, J. Pyrhönen","doi":"10.1109/EPEPEMC.2018.8521994","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521994","url":null,"abstract":"Many manufacturing processes depend on accurate multi-axis movements. Development of drive technology has replaced the need of mechanical couplings and cams in synchronized manufacturing operations. In this paper motion synchronization of a biaxial linear tooth-belt drive is studied and, especially, the effects of the data communication's speed between the control system components on the motion synchronization successfulness is analyzed.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131564052","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521854
Maoh-Chin Jiang, Tai-Chun Liu
This paper presents a soft-switching single-phase two-arm dynamic voltage restorer (DVR) which can solve the voltage disturbance problems such as voltage sag, voltage swell, undervoltage and over-voltage. The proposed scheme is composed of a two-arm topology which operates as a rectifier and an inverter. Rather than the conventional four-arm topology, the proposed two-arm topology not only reduces the number of main switches but also increases the system reliability and simplifies the control circuits. Using simple resonant units, all main switches of high frequency arm are operated at zero-voltage-switching (ZVS) turn-on, while all auxiliary switches are operated at zero-current-switching (ZCS) turn-off. Finally, some simulation results are presented for verification.
{"title":"A Soft-Switching Single-Phase Two-Arm Dynamic Voltage Restorer","authors":"Maoh-Chin Jiang, Tai-Chun Liu","doi":"10.1109/EPEPEMC.2018.8521854","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521854","url":null,"abstract":"This paper presents a soft-switching single-phase two-arm dynamic voltage restorer (DVR) which can solve the voltage disturbance problems such as voltage sag, voltage swell, undervoltage and over-voltage. The proposed scheme is composed of a two-arm topology which operates as a rectifier and an inverter. Rather than the conventional four-arm topology, the proposed two-arm topology not only reduces the number of main switches but also increases the system reliability and simplifies the control circuits. Using simple resonant units, all main switches of high frequency arm are operated at zero-voltage-switching (ZVS) turn-on, while all auxiliary switches are operated at zero-current-switching (ZCS) turn-off. Finally, some simulation results are presented for verification.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"249 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133690058","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521876
Benjamin Ošlaj, P. Slibar, M. Truntič, M. Milanovič
High-temperature thermoelectric generators (TEGs) can be exploited for electrical energy harvesting in a variety of industrial processes that generate excess heat. In order to harvest the maximum amount of energy, a power converter in combination with a maximum power point tracking (MPPT) algorithm is required. This work presents a different approach of using a synchronous buck-boost converter in combination with the perturb and observe (P&O) MPPT algorithm, that uses a variable step size control for improved dynamics. The buck-boost converter is connected to a battery, that is being charged using the TEGs. Experimental results of the implemented MPPT algorithm are shown to prove that the converter reaches the maximum power point in a reasonable time interval. The measured efficiency of the converter is between 96-and 97 %.
{"title":"Synchronous Buck-Boost Converter for Energy Harvesting Application","authors":"Benjamin Ošlaj, P. Slibar, M. Truntič, M. Milanovič","doi":"10.1109/EPEPEMC.2018.8521876","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521876","url":null,"abstract":"High-temperature thermoelectric generators (TEGs) can be exploited for electrical energy harvesting in a variety of industrial processes that generate excess heat. In order to harvest the maximum amount of energy, a power converter in combination with a maximum power point tracking (MPPT) algorithm is required. This work presents a different approach of using a synchronous buck-boost converter in combination with the perturb and observe (P&O) MPPT algorithm, that uses a variable step size control for improved dynamics. The buck-boost converter is connected to a battery, that is being charged using the TEGs. Experimental results of the implemented MPPT algorithm are shown to prove that the converter reaches the maximum power point in a reasonable time interval. The measured efficiency of the converter is between 96-and 97 %.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133788966","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521981
Hariharan Balakrishnan, Manuel Moreno-Ezuilaz, J. Riba, S. Bogarra, Antoni García
This paper proposes to use a white-box approach to identify the parameters of an electronic DC-DC buck converter. It discretizes the differential equations governing the dynamic of such system, which are used to identify the parameters of the electronic components of the converter and the control loop. The proposed method is used to calculate the system parameters from the open loop and closed loop outputs, that is, the steady state and transient state stages of the output signals. The approach is validated by comparing simulation results from PSIM models of the converter with experimental data obtained from a commercial non-synchronous buck converter. Both simulation and experimental results show the feasibility and accuracy of the proposed approach in identifying the parameters of the converter, thus being feasible to obtain a full representation of such power converter.
{"title":"DC-DC Buck Converter Parameter Identification Based on a White-Box Approach","authors":"Hariharan Balakrishnan, Manuel Moreno-Ezuilaz, J. Riba, S. Bogarra, Antoni García","doi":"10.1109/EPEPEMC.2018.8521981","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521981","url":null,"abstract":"This paper proposes to use a white-box approach to identify the parameters of an electronic DC-DC buck converter. It discretizes the differential equations governing the dynamic of such system, which are used to identify the parameters of the electronic components of the converter and the control loop. The proposed method is used to calculate the system parameters from the open loop and closed loop outputs, that is, the steady state and transient state stages of the output signals. The approach is validated by comparing simulation results from PSIM models of the converter with experimental data obtained from a commercial non-synchronous buck converter. Both simulation and experimental results show the feasibility and accuracy of the proposed approach in identifying the parameters of the converter, thus being feasible to obtain a full representation of such power converter.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114368590","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 : 2018-08-01DOI: 10.1109/EPEPEMC.2018.8521849
Bert Lcnaerts, A. Abdallh, Davy Maes, Branimir Mrak, T. Galle, W. De Waele
Optimization of total cost of ownership (TCO) is an important, and challenging design target for present day manufacturing machines. This paper is concerned specifically with production machines with fast reciprocating loads $(> 1 mathbf{Hz})$, e.g. weaving looms and plate punching machines. Subsequent acceleration and deceleration give rise to a reciprocating energy flow that can be handled either mechanically or electrically. The chosen solution will affect the total cost of ownership. In addition to the cost of the energy storage device itself, there are the energy bill, the size and cost of the electric drive and power supply to consider. Moreover, there are certain constraints to be met: lifetime, DC-bus voltage limits and total power factor. This paper presents a methodology that takes all these aspects into account. It applies it to a bar linkage mechanism, which is representative for the targeted applications. In the mechanical domain, springs are considered for energy storage. The structural design of the spring is included in the analysis in order to account for lifetime and inertia added by the spring. In the electric domain, three different topologies are compared: a purely passive front end, where energy is stored directly on the DC-bus, a passive front end combined with a DC/DC converter and a separate storage capacitor, and an active front end.
{"title":"Total Cost of Ownership Optimization of Manufacturing Machines with Fast Energy Storage","authors":"Bert Lcnaerts, A. Abdallh, Davy Maes, Branimir Mrak, T. Galle, W. De Waele","doi":"10.1109/EPEPEMC.2018.8521849","DOIUrl":"https://doi.org/10.1109/EPEPEMC.2018.8521849","url":null,"abstract":"Optimization of total cost of ownership (TCO) is an important, and challenging design target for present day manufacturing machines. This paper is concerned specifically with production machines with fast reciprocating loads $(> 1 mathbf{Hz})$, e.g. weaving looms and plate punching machines. Subsequent acceleration and deceleration give rise to a reciprocating energy flow that can be handled either mechanically or electrically. The chosen solution will affect the total cost of ownership. In addition to the cost of the energy storage device itself, there are the energy bill, the size and cost of the electric drive and power supply to consider. Moreover, there are certain constraints to be met: lifetime, DC-bus voltage limits and total power factor. This paper presents a methodology that takes all these aspects into account. It applies it to a bar linkage mechanism, which is representative for the targeted applications. In the mechanical domain, springs are considered for energy storage. The structural design of the spring is included in the analysis in order to account for lifetime and inertia added by the spring. In the electric domain, three different topologies are compared: a purely passive front end, where energy is stored directly on the DC-bus, a passive front end combined with a DC/DC converter and a separate storage capacitor, and an active front end.","PeriodicalId":251046,"journal":{"name":"2018 IEEE 18th International Power Electronics and Motion Control Conference (PEMC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124922061","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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