Pub Date : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767242
Amir Aghajani, Navid Zare Kashani, M. Eldoromi, A. A. Moti Birjandi
In this paper, a novel half-full-bridge DC-DC converter based on the split-capacitor dual-active-bridge (DAB) converter is proposed. In the proposed topology, the primary and the secondary sides of the transformer windings are connected to the midpoint of the input and the output split capacitors, respectively. Therefore, the switching voltage stress in the proposed converter is half of the conventional DAB converter. In addition, two power switches are omitted in the proposed converter compared to the conventional DAB converter, which consequently reduces the switching loss, increases the total efficiency, and makes the converter more affordable. Also, the proposed converter can easily connect to the multi-level inverter (MLI) for grid-connected applications, without adding the extra capacitors. To ensure the zero-voltage-switching (ZVS) for all the power switches at full load range under the single-phase-shift (SPS) modulation, the optimization method of the magnetizing inductor current is employed. Furthermore, the comparison is made between the proposed topology, conventional DAB converter, and the split-capacitor DAB (SCDAB) topology. The simulation results using MATLAB/Simulink verifies the performance of the proposed topology and the mentioned advantages.
{"title":"A Novel Half-Full-Bridge Split-Capacitor DC-DC Converter Based On Dual-Active-Bridge Topology","authors":"Amir Aghajani, Navid Zare Kashani, M. Eldoromi, A. A. Moti Birjandi","doi":"10.1109/pedstc53976.2022.9767242","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767242","url":null,"abstract":"In this paper, a novel half-full-bridge DC-DC converter based on the split-capacitor dual-active-bridge (DAB) converter is proposed. In the proposed topology, the primary and the secondary sides of the transformer windings are connected to the midpoint of the input and the output split capacitors, respectively. Therefore, the switching voltage stress in the proposed converter is half of the conventional DAB converter. In addition, two power switches are omitted in the proposed converter compared to the conventional DAB converter, which consequently reduces the switching loss, increases the total efficiency, and makes the converter more affordable. Also, the proposed converter can easily connect to the multi-level inverter (MLI) for grid-connected applications, without adding the extra capacitors. To ensure the zero-voltage-switching (ZVS) for all the power switches at full load range under the single-phase-shift (SPS) modulation, the optimization method of the magnetizing inductor current is employed. Furthermore, the comparison is made between the proposed topology, conventional DAB converter, and the split-capacitor DAB (SCDAB) topology. The simulation results using MATLAB/Simulink verifies the performance of the proposed topology and the mentioned advantages.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123622793","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767344
Mahdi Alemi Rostami, S. Sharouni
A small low-voltage high-speed Consequent Pole Permanent Magnet Synchronous (CP-PMSM) motor is proposed in this paper. The motor is suitable in various industries applications such as vehicular technology. The motor properties such as windings configuration and consequent pole structure are illustrated in the paper, where the motor dynamic is analyzed. The possible structure for teeth/poles combination is introduced by mathematical magnetic analysis and a sample one is proposed for vehicular applications. For this aim, a 400 Hz, 14 V CP-PMSM with 7 PMs in the rotor and 12 teeth in the stator is proposed as a 14-pole motor. Moreover, the motor performance under dynamic load is analyzed by Finite Element Method (FEM), where the motor efficiency, power capacity, and Power Factor (PF) are evaluated. Performed analysis for a new type PMSM with consequence pole structure is known as the paper novelties that are investigable for the researchers.
{"title":"A Small Low-Voltage High-Speed Consequent Pole Permanent Magnet Synchronous Motor Proposal for Vehicular Industries","authors":"Mahdi Alemi Rostami, S. Sharouni","doi":"10.1109/pedstc53976.2022.9767344","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767344","url":null,"abstract":"A small low-voltage high-speed Consequent Pole Permanent Magnet Synchronous (CP-PMSM) motor is proposed in this paper. The motor is suitable in various industries applications such as vehicular technology. The motor properties such as windings configuration and consequent pole structure are illustrated in the paper, where the motor dynamic is analyzed. The possible structure for teeth/poles combination is introduced by mathematical magnetic analysis and a sample one is proposed for vehicular applications. For this aim, a 400 Hz, 14 V CP-PMSM with 7 PMs in the rotor and 12 teeth in the stator is proposed as a 14-pole motor. Moreover, the motor performance under dynamic load is analyzed by Finite Element Method (FEM), where the motor efficiency, power capacity, and Power Factor (PF) are evaluated. Performed analysis for a new type PMSM with consequence pole structure is known as the paper novelties that are investigable for the researchers.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120985984","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 : 2022-02-01DOI: 10.1109/PEDSTC53976.2022.9767317
A. Sedehi, Mohammadreza Mirjafari
A major problem to design the controller of power electronic converters is to maintain robust stability and performance criteria against changing parameters. The conventional methods to design robust controllers lead to a high-order controller that may not feasible to implement in real-time. In this paper, a robust linear quadratic regulator is proposed that can cope with the variation of parameters of the converter. This approach is based on state feedback which involves inductor current and capacitor voltage. These state variables should be measured and sent to the controller unit. To simplify implementation, an extended kalman bucy filter is proposed for buck converter to estimate the states of the converter. To more study, the performance of the proposed controller is compared with a conventional high order H∞ controller.
{"title":"Robust Optimal Controller for Buck Converter Under Parametric Uncertainty: An LQR Approach","authors":"A. Sedehi, Mohammadreza Mirjafari","doi":"10.1109/PEDSTC53976.2022.9767317","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767317","url":null,"abstract":"A major problem to design the controller of power electronic converters is to maintain robust stability and performance criteria against changing parameters. The conventional methods to design robust controllers lead to a high-order controller that may not feasible to implement in real-time. In this paper, a robust linear quadratic regulator is proposed that can cope with the variation of parameters of the converter. This approach is based on state feedback which involves inductor current and capacitor voltage. These state variables should be measured and sent to the controller unit. To simplify implementation, an extended kalman bucy filter is proposed for buck converter to estimate the states of the converter. To more study, the performance of the proposed controller is compared with a conventional high order H∞ controller.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122791425","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767487
Hoda Sorouri, M. Sedighizadeh
Today, power distribution systems are highly penetrated by renewable energy sources, and this explains the dominant role of power electronic converters in their operation. However, the existence of several electronic power conversion units creates the so-called constant power load (CPL), which poses a serious stability issue in the operation of a DC microgrid. So, a robust controller with fast response is vital. This paper develops a small signal model for dc MGs from the control point of view, in order to study stability analysis and investigate effects of CPLs. A finite-set model predictive control (FS-MPC) is used to control of dc-dc buck converter in uncertain situations, i.e. when reference voltage changes and when input voltage of converter was changed. To evaluate the strangeness of the proposed controller comparative real time results and analysis of MPC with Backstepping and PID control is observed.
{"title":"Robust control of DC-DC converter supplying constant power load with Finite-Set Model Predictive Control","authors":"Hoda Sorouri, M. Sedighizadeh","doi":"10.1109/pedstc53976.2022.9767487","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767487","url":null,"abstract":"Today, power distribution systems are highly penetrated by renewable energy sources, and this explains the dominant role of power electronic converters in their operation. However, the existence of several electronic power conversion units creates the so-called constant power load (CPL), which poses a serious stability issue in the operation of a DC microgrid. So, a robust controller with fast response is vital. This paper develops a small signal model for dc MGs from the control point of view, in order to study stability analysis and investigate effects of CPLs. A finite-set model predictive control (FS-MPC) is used to control of dc-dc buck converter in uncertain situations, i.e. when reference voltage changes and when input voltage of converter was changed. To evaluate the strangeness of the proposed controller comparative real time results and analysis of MPC with Backstepping and PID control is observed.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132647205","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 : 2022-02-01DOI: 10.1109/PEDSTC53976.2022.9767461
J. Khajesalehi, E. Afjei
This paper presents a tansformerless power electronic interface (PEI) composed of high step-up dc/dc converter, voltage doubler circuit and neutral point clamped (NPC) inverter for photovoltaic (PV)-active power filter applications. Decreased voltage and current stress on PEI devices is the main benefit of the proposed solution. In NPC inverter, the model predictive control (MPC) is used to achieve current control, dc-link voltage balancing, and compensating for unbalanced and harmonic components of local load currents. Average state space model of the dc/dc converter is used to control PV voltage at reference provided by maximum power point tracking (MPPT) algorithm. The performance of the proposed PEI and its associated control systems are verified by simulations conducted in MATLAB/Simulink environment.
{"title":"Model Predictive Control of NPC Inverter Coupled to Voltage Doubled High Step-Up DC/DC Converter in PV-Active Power Filter Application","authors":"J. Khajesalehi, E. Afjei","doi":"10.1109/PEDSTC53976.2022.9767461","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767461","url":null,"abstract":"This paper presents a tansformerless power electronic interface (PEI) composed of high step-up dc/dc converter, voltage doubler circuit and neutral point clamped (NPC) inverter for photovoltaic (PV)-active power filter applications. Decreased voltage and current stress on PEI devices is the main benefit of the proposed solution. In NPC inverter, the model predictive control (MPC) is used to achieve current control, dc-link voltage balancing, and compensating for unbalanced and harmonic components of local load currents. Average state space model of the dc/dc converter is used to control PV voltage at reference provided by maximum power point tracking (MPPT) algorithm. The performance of the proposed PEI and its associated control systems are verified by simulations conducted in MATLAB/Simulink environment.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128116328","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 : 2022-02-01DOI: 10.1109/PEDSTC53976.2022.9767243
Omid Zolfagharian, Mohammad Farsijani, Esmaeil Keyvanloo, M. Tavakoli Bina
Multi-carrier modulation (MCM) techniques have been considered by researchers due to their simple implementation of multilevel inverters (MLIs). In this paper, multi-carrier modulations (MCMs) are employed in two-phase cascaded H-bridge MLI (CHB-MLI) with the major difference being that, in addition to the same modulation, non-identical modulations are also used. Furthermore, a new proposed modulation (PM) has been presented and it employed with conventional MCM technique in two-phase CHB-MLI; finally, the optimal dual MCM is selected in terms of the best THD of output line voltage under balanced and unbalanced input sources, the least output voltage drops under input sources variations, and the lowest DC capacitor. The simulation results in MATLAB/ SIMULINK confirm the proposed method.
{"title":"A New Modulation Technique for Improving the Performance of Two-Phase Cascaded H-bridge Multilevel Inverter","authors":"Omid Zolfagharian, Mohammad Farsijani, Esmaeil Keyvanloo, M. Tavakoli Bina","doi":"10.1109/PEDSTC53976.2022.9767243","DOIUrl":"https://doi.org/10.1109/PEDSTC53976.2022.9767243","url":null,"abstract":"Multi-carrier modulation (MCM) techniques have been considered by researchers due to their simple implementation of multilevel inverters (MLIs). In this paper, multi-carrier modulations (MCMs) are employed in two-phase cascaded H-bridge MLI (CHB-MLI) with the major difference being that, in addition to the same modulation, non-identical modulations are also used. Furthermore, a new proposed modulation (PM) has been presented and it employed with conventional MCM technique in two-phase CHB-MLI; finally, the optimal dual MCM is selected in terms of the best THD of output line voltage under balanced and unbalanced input sources, the least output voltage drops under input sources variations, and the lowest DC capacitor. The simulation results in MATLAB/ SIMULINK confirm the proposed method.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116970122","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767540
M. Moradi, M. Heydari, S. F. Zarei
Due to the intermittent nature of renewable energy sources, the implementation of energy storage systems (ESSs) is crucial for the reliable operation of microgrids. This paper proposes a peer-to-peer distributed secondary control scheme for accurate voltage restoration of distributed ESS units in a DC microgrid. The presented control framework only requires local and neighboring information to function. Besides, the ESSs communicate with each other through a sparse network in a discrete fashion compared to existing approaches based on continuous data exchange. This feature ensures reliability, expandability, and flexibility of the proposed strategy for a more practical realization of distributed control paradigm. A simulation case study is presented using MATLAB/Simulink to illustrate the performance and effectiveness of the proposed control strategy.
{"title":"Distributed Secondary Control for Voltage Restoration of ESSs in a DC Microgrid","authors":"M. Moradi, M. Heydari, S. F. Zarei","doi":"10.1109/pedstc53976.2022.9767540","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767540","url":null,"abstract":"Due to the intermittent nature of renewable energy sources, the implementation of energy storage systems (ESSs) is crucial for the reliable operation of microgrids. This paper proposes a peer-to-peer distributed secondary control scheme for accurate voltage restoration of distributed ESS units in a DC microgrid. The presented control framework only requires local and neighboring information to function. Besides, the ESSs communicate with each other through a sparse network in a discrete fashion compared to existing approaches based on continuous data exchange. This feature ensures reliability, expandability, and flexibility of the proposed strategy for a more practical realization of distributed control paradigm. A simulation case study is presented using MATLAB/Simulink to illustrate the performance and effectiveness of the proposed control strategy.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124474537","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767349
M. R. Haredasht, S. M. Barakati, S. Y. Darmian, M. B. Hashkavayi, Vahid Barahouei
The modular multilevel converter (MMC) is one of the most commonly used power electronic converters in medium and high-power applications. However, reliability is one of the most critical challenges because of the many power switching devices applied in the MMC. Also, many voltage sensors in the converter topology have increased cost and hardware complexity. In this paper, a method for detecting IGBTs open-circuit fault is proposed. In the proposed method, each converter arm is divided into sets. Each set includes two sub-modules and a voltage sensor. These voltage sensors are responsible for monitoring their set. By comparing the output voltage of each set, in normal operation mode and after the open-circuit fault, the fault is detected with great speed and accuracy. Finally, the performance of the proposed method in various scenarios is examined by the simulation results in MATLAB/Simulink.
{"title":"Open-circuit Fault Diagnosis Strategy For Modular Multilevel Converter Semiconductor Power Switches","authors":"M. R. Haredasht, S. M. Barakati, S. Y. Darmian, M. B. Hashkavayi, Vahid Barahouei","doi":"10.1109/pedstc53976.2022.9767349","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767349","url":null,"abstract":"The modular multilevel converter (MMC) is one of the most commonly used power electronic converters in medium and high-power applications. However, reliability is one of the most critical challenges because of the many power switching devices applied in the MMC. Also, many voltage sensors in the converter topology have increased cost and hardware complexity. In this paper, a method for detecting IGBTs open-circuit fault is proposed. In the proposed method, each converter arm is divided into sets. Each set includes two sub-modules and a voltage sensor. These voltage sensors are responsible for monitoring their set. By comparing the output voltage of each set, in normal operation mode and after the open-circuit fault, the fault is detected with great speed and accuracy. Finally, the performance of the proposed method in various scenarios is examined by the simulation results in MATLAB/Simulink.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114324324","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767236
Alireza Gharechahi, Amirhossin Jabbarpoor Shahrezayi, M. Hamzeh, E. Afjei
In photovoltaics (PVs) applications, some limitations in power optimizers, such as voltage, current, and gain, would result in multiple maxima in the string's power-voltage (P-V) curve; therefore, constant DC-link voltage or centralized MPPT may lead to finding the wrong maxima in the P-V curve. On the other hand, power mismatches in submodules cause multiple maxima in the P-V curve of the PV panel, even if it is equipped with SPO. This paper focuses on a solution for multiple power-peak issue by presenting a P-V scan method. This method is added to the control system of both SPOs and central inverter. During this, the voltage is varied in a desired range until the most efficient operating voltage is recognized and adjusted, resulting in more harvested power by preventing the system's operation in local maximum power point. The main concepts of this paper are reemphasized through a set of simulations.
{"title":"Increasing of Harvested Power in DMPPT-based PV Systems by a New Scan Method","authors":"Alireza Gharechahi, Amirhossin Jabbarpoor Shahrezayi, M. Hamzeh, E. Afjei","doi":"10.1109/pedstc53976.2022.9767236","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767236","url":null,"abstract":"In photovoltaics (PVs) applications, some limitations in power optimizers, such as voltage, current, and gain, would result in multiple maxima in the string's power-voltage (P-V) curve; therefore, constant DC-link voltage or centralized MPPT may lead to finding the wrong maxima in the P-V curve. On the other hand, power mismatches in submodules cause multiple maxima in the P-V curve of the PV panel, even if it is equipped with SPO. This paper focuses on a solution for multiple power-peak issue by presenting a P-V scan method. This method is added to the control system of both SPOs and central inverter. During this, the voltage is varied in a desired range until the most efficient operating voltage is recognized and adjusted, resulting in more harvested power by preventing the system's operation in local maximum power point. The main concepts of this paper are reemphasized through a set of simulations.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122888757","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 : 2022-02-01DOI: 10.1109/pedstc53976.2022.9767316
Seyed Hamid Khalkhali, A. Razi-Kazemi, Habib-o-Llah Qasem-Nezhad
Today, with the growth of industry and domestic demand, the use of renewable energy such as wind and solar energy is very popular in different countries. In addition, the distance between the consumer and the power plant is long. Accordingly, the use of HVDC networks is expanding and developing. Circuit Breakers (CBs) are one of the essential equipment of the power grid. The reliable and fast operation of CB is so essential owing to the rapid increase in short-circuit current in DC networks. Hybrid DC CBs, including ultra-fast disconnector (UFD), as providing require insulation distance, are so popular. The high speed of UFDs causes collisions with the endpoints of the contact opening and closing process, which in the long term causes wear, breakage, and damage to various parts of the UFD components. Therefore, mechanical and electrical dampers are employed to reduce the contact speed at the moment of endpoint impact. This paper model the dynamic behavior of contacts in ANSYS MAXWELL software environment, the effect of mechanical and electrical damping in reducing the contact speed at the moment of impact is investigated, and a suitable mechanical and electrical damping is provided for successful damping of contact tension.
{"title":"Design of a Combined Mechanical and Electrical Damper to Reduce Contact Speed at the Moment of Collision at the Endpoint","authors":"Seyed Hamid Khalkhali, A. Razi-Kazemi, Habib-o-Llah Qasem-Nezhad","doi":"10.1109/pedstc53976.2022.9767316","DOIUrl":"https://doi.org/10.1109/pedstc53976.2022.9767316","url":null,"abstract":"Today, with the growth of industry and domestic demand, the use of renewable energy such as wind and solar energy is very popular in different countries. In addition, the distance between the consumer and the power plant is long. Accordingly, the use of HVDC networks is expanding and developing. Circuit Breakers (CBs) are one of the essential equipment of the power grid. The reliable and fast operation of CB is so essential owing to the rapid increase in short-circuit current in DC networks. Hybrid DC CBs, including ultra-fast disconnector (UFD), as providing require insulation distance, are so popular. The high speed of UFDs causes collisions with the endpoints of the contact opening and closing process, which in the long term causes wear, breakage, and damage to various parts of the UFD components. Therefore, mechanical and electrical dampers are employed to reduce the contact speed at the moment of endpoint impact. This paper model the dynamic behavior of contacts in ANSYS MAXWELL software environment, the effect of mechanical and electrical damping in reducing the contact speed at the moment of impact is investigated, and a suitable mechanical and electrical damping is provided for successful damping of contact tension.","PeriodicalId":213924,"journal":{"name":"2022 13th Power Electronics, Drive Systems, and Technologies Conference (PEDSTC)","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123343598","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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