Pub Date : 2018-06-20DOI: 10.1109/SPEEDAM.2018.8445207
Hojin Lee, Hyeyun Jeong, S. W. Kim
This paper proposes a method that is based on a model to diagnose interturn short-circuit fault (ISCF) in a permanent magnet synchronous machine (PMSM). The fault diagnosis is accomplished with residual voltage components (RV Cs) that represent the difference between the measured stator voltages and the estimated stator voltages. The fault indicators based on RVCs are proposed to estimate the fault severity; these can distinguish the severity of the ISCF and can also detect the phase where the ISCF occurred. Simulation results from a finite element analysis tool validate the proposed method diagnoses the ISCF in different fault cases. This method can be used for early diagnosis of ISCFs in PMSMs.
{"title":"Diagnosis of Interturn Short-Circuit Fault in PMSM by Residual Voltage Analysis","authors":"Hojin Lee, Hyeyun Jeong, S. W. Kim","doi":"10.1109/SPEEDAM.2018.8445207","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445207","url":null,"abstract":"This paper proposes a method that is based on a model to diagnose interturn short-circuit fault (ISCF) in a permanent magnet synchronous machine (PMSM). The fault diagnosis is accomplished with residual voltage components (RV Cs) that represent the difference between the measured stator voltages and the estimated stator voltages. The fault indicators based on RVCs are proposed to estimate the fault severity; these can distinguish the severity of the ISCF and can also detect the phase where the ISCF occurred. Simulation results from a finite element analysis tool validate the proposed method diagnoses the ISCF in different fault cases. This method can be used for early diagnosis of ISCFs in PMSMs.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133593652","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445298
M. Schuster, Janas Springer, A. Binder
An 1.1 kW-induction machine and an 1.5 kW-permanent magnet synchronous machine (PMSM) are investigated, measuring the common-mode bearing currents in dependence of rotor speed. Both machines are fed by an IGBT-voltage source inverter at $pmb{V}_{mathbf{DC}}=mathbf{560 V}$ DC link voltage. The parasitic high frequency machine capacitances are analytically calculated. The stator winding-to-frame capacitances are also measured. The 1.1 kW-induction machine shows at low speed $(pmb{n} < mathbf{900 rpm})$ resistive bearing currents, at medium speed (900 rpm $< pmb{n} < mathbf{2250}$ rpm) electrical discharge machining (EDM) bearing currents and at high speed above 2250 rpm capacitive dvldt bearing currents. The highest average peak-to-peak EDM bearing current is $pmb{I}_{mathbf{b},mathbf{pk}-mathbf{pk},mathbf{NDE}}approx 1$ A at non-drive end (NDE) and medium speed. With a Hertz'ian contact area $pmb{A}_{mathbf{Hertz}}=mathbf{0.21 mm}^{2}$ the apparent bearing current density $pmb{J}_{mathbf{b}}$ is 2.4 A/mm2• Thus it will probably reduce significantly the bearing life time. The 1.5 kW-PMSM shows mainly EDM bearing currents over almost the complete speed range $(mathbf{0} < pmb{n} < mathbf{3000}$ rprn $)$ with average peak-to-peak bearing currents of 0.1 A at drive end. The peak-to-peak bearing current of the resolver bearina is 300% higher. With a Hertz'ian contact area $pmb{A}_{mathbf{Hertz}}=mathbf{0.04 mm}^{2}$ the apparent bearing current density there is $pmb{J}_{mathbf{b}}=mathbf{4.7 A}/mathbf{mm}^{2}$. This high value will also reduce significantly the resolver bearing life time.
{"title":"Comparison of a 1.1 kW-induction machine and a 1.5 kW-PMSM regarding common-mode bearing currents","authors":"M. Schuster, Janas Springer, A. Binder","doi":"10.1109/SPEEDAM.2018.8445298","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445298","url":null,"abstract":"An 1.1 kW-induction machine and an 1.5 kW-permanent magnet synchronous machine (PMSM) are investigated, measuring the common-mode bearing currents in dependence of rotor speed. Both machines are fed by an IGBT-voltage source inverter at $pmb{V}_{mathbf{DC}}=mathbf{560 V}$ DC link voltage. The parasitic high frequency machine capacitances are analytically calculated. The stator winding-to-frame capacitances are also measured. The 1.1 kW-induction machine shows at low speed $(pmb{n} < mathbf{900 rpm})$ resistive bearing currents, at medium speed (900 rpm $< pmb{n} < mathbf{2250}$ rpm) electrical discharge machining (EDM) bearing currents and at high speed above 2250 rpm capacitive dvldt bearing currents. The highest average peak-to-peak EDM bearing current is $pmb{I}_{mathbf{b},mathbf{pk}-mathbf{pk},mathbf{NDE}}approx 1$ A at non-drive end (NDE) and medium speed. With a Hertz'ian contact area $pmb{A}_{mathbf{Hertz}}=mathbf{0.21 mm}^{2}$ the apparent bearing current density $pmb{J}_{mathbf{b}}$ is 2.4 A/mm2• Thus it will probably reduce significantly the bearing life time. The 1.5 kW-PMSM shows mainly EDM bearing currents over almost the complete speed range $(mathbf{0} < pmb{n} < mathbf{3000}$ rprn $)$ with average peak-to-peak bearing currents of 0.1 A at drive end. The peak-to-peak bearing current of the resolver bearina is 300% higher. With a Hertz'ian contact area $pmb{A}_{mathbf{Hertz}}=mathbf{0.04 mm}^{2}$ the apparent bearing current density there is $pmb{J}_{mathbf{b}}=mathbf{4.7 A}/mathbf{mm}^{2}$. This high value will also reduce significantly the resolver bearing life time.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121040476","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445418
S. Hamasaki, M. Roknuzzaman, Naoki Mansai, Naoto Seto, M. Tsuji
The modular multilevel converter (MMC) with cascaded full bridge cells is available for AC/AC transmission system without transformers in high voltage line. The MMC is focused on as the transformer-less converter to realize light weight and downsizing and the multi-level waveforms to obtain less distorted output. When it is interconnected with power line, it is possible to control the active power flow in order to supply or charge the power in the line. The Hexagonal MMC (H-MMC) for 3-phase AC-AC conversion system with energy storage is investigated. The H-MMC has six arm modules with floating capacitors. In addition, the circuit has energy storage system such as the battery or the super capacitor to compensate surplus or shortage power between input and output. The control theory of H-MMC with the energy storage is explained and the operation is performed in simulation. Effectiveness of the proposed control method in some typical conditions is verified.
{"title":"Control of Hexagonal Modular Multilevel Converter with Energy Storage for 3-phase AC/AC System","authors":"S. Hamasaki, M. Roknuzzaman, Naoki Mansai, Naoto Seto, M. Tsuji","doi":"10.1109/SPEEDAM.2018.8445418","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445418","url":null,"abstract":"The modular multilevel converter (MMC) with cascaded full bridge cells is available for AC/AC transmission system without transformers in high voltage line. The MMC is focused on as the transformer-less converter to realize light weight and downsizing and the multi-level waveforms to obtain less distorted output. When it is interconnected with power line, it is possible to control the active power flow in order to supply or charge the power in the line. The Hexagonal MMC (H-MMC) for 3-phase AC-AC conversion system with energy storage is investigated. The H-MMC has six arm modules with floating capacitors. In addition, the circuit has energy storage system such as the battery or the super capacitor to compensate surplus or shortage power between input and output. The control theory of H-MMC with the energy storage is explained and the operation is performed in simulation. Effectiveness of the proposed control method in some typical conditions is verified.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127099906","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445197
Xiaofeng Jiang, Haitao Hu, Jie Yang, Yi Zhou, Zhengyou He, Q. Qian, P. Tricoli, S. Hillmansen, C. Roberts
Low-frequency voltage fluctuations severely impact the equipment security and transportation order of Electrified Railway, which have been frequently reported in China Electrified Railway. In order to suppress such fluctuations, this paper presents an effective method by impedance regulation of the locomotive- Tpss(traction power supply system) interaction system which has been adopted in a practical railway Hub, Xuzhou Railway Hub in China. In this Hub, the original transformer of North Xuzhou substation has been replaced by an expanded one with a larger capacity and a smaller short circuit voltage to reduce the impedance of the interaction system. The practical operation shows that the reconstructed substation with proposed method successfully removed the voltage fluctuation. Furthermore, the feasibility of the mitigation technology is verified by the compared field tests.
{"title":"The Mitigation Technology of Typical Low-Frequency Voltage Fluctuation in China Electrified Railway","authors":"Xiaofeng Jiang, Haitao Hu, Jie Yang, Yi Zhou, Zhengyou He, Q. Qian, P. Tricoli, S. Hillmansen, C. Roberts","doi":"10.1109/SPEEDAM.2018.8445197","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445197","url":null,"abstract":"Low-frequency voltage fluctuations severely impact the equipment security and transportation order of Electrified Railway, which have been frequently reported in China Electrified Railway. In order to suppress such fluctuations, this paper presents an effective method by impedance regulation of the locomotive- Tpss(traction power supply system) interaction system which has been adopted in a practical railway Hub, Xuzhou Railway Hub in China. In this Hub, the original transformer of North Xuzhou substation has been replaced by an expanded one with a larger capacity and a smaller short circuit voltage to reduce the impedance of the interaction system. The practical operation shows that the reconstructed substation with proposed method successfully removed the voltage fluctuation. Furthermore, the feasibility of the mitigation technology is verified by the compared field tests.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115049667","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445348
I. Gomes, R. Laia, H. Pousinho, R. Melício, V. Mendes
This paper addresses a stochastic Wind-PV-Thermal commitment to improve the bidding process of an aggregator in an electricity day-ahead market. The data for the wind and solar powers and for the market prices are given by a set of scenarios. Thermal units modeling includes start-up costs, variables costs and bounds due to constraints of technical operation, such as: ramp up/down limits and minimum up/down time limits. The modeling is carried out in order to develop a management aggregation procedure based in a stochastic programming approach formulated as a mixed integer linear mathematical programming problem. A case study is addressed with market price from the Iberian Peninsula and comparison between disaggregated and aggregated bids is discussed to address the main conclusions.
{"title":"Aggregation Platform for Wind-PV-Thermal Technology in Electricity Market","authors":"I. Gomes, R. Laia, H. Pousinho, R. Melício, V. Mendes","doi":"10.1109/SPEEDAM.2018.8445348","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445348","url":null,"abstract":"This paper addresses a stochastic Wind-PV-Thermal commitment to improve the bidding process of an aggregator in an electricity day-ahead market. The data for the wind and solar powers and for the market prices are given by a set of scenarios. Thermal units modeling includes start-up costs, variables costs and bounds due to constraints of technical operation, such as: ramp up/down limits and minimum up/down time limits. The modeling is carried out in order to develop a management aggregation procedure based in a stochastic programming approach formulated as a mixed integer linear mathematical programming problem. A case study is addressed with market price from the Iberian Peninsula and comparison between disaggregated and aggregated bids is discussed to address the main conclusions.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116239189","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445379
Victor Nevarez, G. Bacelli, R. Coe, D. Wilson
Through the use of advanced control techniques, wave energy converters have significantly improved energy absorption. The motion of the WEC device is a significant contribution to the energy absorbed by the device. Reactive control (complex conjugate control) maximizes the energy absorption due to the impedance matching. The issue with complex conjugate control is that the controller is non-causal, which requires prediction into the oncoming waves to the device. This paper explores the potential of using system identification (SID) techniques to build a causal transfer function that approximates the complex conjugate controller over a specific frequency band of interest. The resulting controller is stable, and the average efficiency of the power captured by the causal controller is 99%, when compared to the non-causal complex conjugate.
{"title":"Feedback Resonating Control for a Wave Energy Converter","authors":"Victor Nevarez, G. Bacelli, R. Coe, D. Wilson","doi":"10.1109/SPEEDAM.2018.8445379","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445379","url":null,"abstract":"Through the use of advanced control techniques, wave energy converters have significantly improved energy absorption. The motion of the WEC device is a significant contribution to the energy absorbed by the device. Reactive control (complex conjugate control) maximizes the energy absorption due to the impedance matching. The issue with complex conjugate control is that the controller is non-causal, which requires prediction into the oncoming waves to the device. This paper explores the potential of using system identification (SID) techniques to build a causal transfer function that approximates the complex conjugate controller over a specific frequency band of interest. The resulting controller is stable, and the average efficiency of the power captured by the causal controller is 99%, when compared to the non-causal complex conjugate.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122818496","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445354
K. Sakai, T. Akiyama, Kenta Takijima
Electric aircraft that can move in three dimensions would expand our social lives and create new industries. In addition, electric aircraft would lower the energy consumption and emissions of flight. However, electric aircraft require an ultralight weight. Toward this goal, we propose a cage-rotor machine that converts electrical energy between the stator and the rotor via magnetic resonance coupling (MRC). This action induces electromagnetic resonance between the multiphase windings of the stator and the cage bars of the rotor. Electromagnetic resonance coupling technology removes the need for magnetic cores in electrical energy-conversion machines, greatly reducing their weight. In a simulation study, we describe the operating principles and basic MRC-induced characteristics of the proposed cage-type MRC motor. In our analytical results, the MRC motor with no magnetic core converted electromagnetic energy between the stator and the rotor and produced sufficient starting torque with a power factor of 1.0. The relationship between motor torque and resonant frequency was moderated by eddy currents.
{"title":"Basic Characteristics of an Ultra-lightweight Magnetic Resonance Coupling Machine with a Cage Rotor","authors":"K. Sakai, T. Akiyama, Kenta Takijima","doi":"10.1109/SPEEDAM.2018.8445354","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445354","url":null,"abstract":"Electric aircraft that can move in three dimensions would expand our social lives and create new industries. In addition, electric aircraft would lower the energy consumption and emissions of flight. However, electric aircraft require an ultralight weight. Toward this goal, we propose a cage-rotor machine that converts electrical energy between the stator and the rotor via magnetic resonance coupling (MRC). This action induces electromagnetic resonance between the multiphase windings of the stator and the cage bars of the rotor. Electromagnetic resonance coupling technology removes the need for magnetic cores in electrical energy-conversion machines, greatly reducing their weight. In a simulation study, we describe the operating principles and basic MRC-induced characteristics of the proposed cage-type MRC motor. In our analytical results, the MRC motor with no magnetic core converted electromagnetic energy between the stator and the rotor and produced sufficient starting torque with a power factor of 1.0. The relationship between motor torque and resonant frequency was moderated by eddy currents.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114175334","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445311
Joerg Heinrich, Anna Lusiewicz, Quntai Shen, N. Parspour
In this paper, a design approach for capacitive power transfer (CPT) systems is described. Electrical energy is transferred contactlessly by using two capacitors connected in series to a load resistance. The transmission path is modeled as a two-port network, giving its properties by matrix parameters. To enhance the system's efficiency, a reactive power compensation with inductances is introduced, along with calculations for a system with parallel compensation on both sides. To validate the analytical results, a circuit simulation is presented as well. Based on these theoretical results, a design proposal for CPT-systems is given.
{"title":"Fundamentals and Design Proposal for Capacitive Contactless Power Transfer Systems","authors":"Joerg Heinrich, Anna Lusiewicz, Quntai Shen, N. Parspour","doi":"10.1109/SPEEDAM.2018.8445311","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445311","url":null,"abstract":"In this paper, a design approach for capacitive power transfer (CPT) systems is described. Electrical energy is transferred contactlessly by using two capacitors connected in series to a load resistance. The transmission path is modeled as a two-port network, giving its properties by matrix parameters. To enhance the system's efficiency, a reactive power compensation with inductances is introduced, along with calculations for a system with parallel compensation on both sides. To validate the analytical results, a circuit simulation is presented as well. Based on these theoretical results, a design proposal for CPT-systems is given.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114387166","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445350
Martha Bugsch, B. Piepenbreier
For many industrial applications, sensorless control of synchronous reluctance machines (SynRMs) is beneficial. Additional sinusoidal high-frequency (HF) test signals are often injected for sensorless control at standstill and in the low speed range. However, they have a number of drawbacks for SynRMs combined with a standard industrial inverter and without current oversampling. Hence, this paper presents an approach tailored to SynRMs using square-wave-shaped voltage test signals. They simultaneously increase the bandwidth, because they enable a higher HF frequency. The paper takes into account the highly nonlinear machine behaviour by using adaptive HF voltage levels. It compensates for the electrical angle error caused by cross-coupling effects and for that caused by load steps or dynamic behaviour during demodulation of the HF current amplitude. Only a special regular-update current sampling method is sufficient. A two-degree-of-freedom (2DoF) current and speed control is implemented. The theoretical background of the method is explained, and the control concept is validated on the basis of experimental results.
{"title":"Bandwidth Extending Approach for Sensorless Control of Synchronous Reluctance Machines Using an HF Square-Wave-Shaped-Voltage-Injection-Based Method for Low Speed Range","authors":"Martha Bugsch, B. Piepenbreier","doi":"10.1109/SPEEDAM.2018.8445350","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445350","url":null,"abstract":"For many industrial applications, sensorless control of synchronous reluctance machines (SynRMs) is beneficial. Additional sinusoidal high-frequency (HF) test signals are often injected for sensorless control at standstill and in the low speed range. However, they have a number of drawbacks for SynRMs combined with a standard industrial inverter and without current oversampling. Hence, this paper presents an approach tailored to SynRMs using square-wave-shaped voltage test signals. They simultaneously increase the bandwidth, because they enable a higher HF frequency. The paper takes into account the highly nonlinear machine behaviour by using adaptive HF voltage levels. It compensates for the electrical angle error caused by cross-coupling effects and for that caused by load steps or dynamic behaviour during demodulation of the HF current amplitude. Only a special regular-update current sampling method is sufficient. A two-degree-of-freedom (2DoF) current and speed control is implemented. The theoretical background of the method is explained, and the control concept is validated on the basis of experimental results.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129749461","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 : 2018-06-01DOI: 10.1109/SPEEDAM.2018.8445331
L. Tornello, G. Scelba, M. Cacciato, G. Scarcella, A. Palmieri, E. Vanelli, C. Pernaci, R. di Dio
In this paper are presented FPGA-based models of IGBT power converters for hardware in the loop systems. The analytical model of each single power device is straightforwardly obtained from technical specifications. The proposed approach can be considered a viable solution featuring minimal modeling complexity and thus reduced computational efforts, still maintaining high accuracy. The main target is to provide an easy model plant for testing electric drive configurations and control strategies, fault tolerant drives, and so on. The Field-Programmable Gate Arrays (FPGA)-based real-time models have been used to simulate a step down dc-dc converter and a 10kW three-phase inverter for automotive applications. The results carried out using the hardware in the loop system are in good agreement with that obtained from off-line numerical simulations and experimental tests.
{"title":"FPGA - Based Real-Time Models of IGBT Power Converters","authors":"L. Tornello, G. Scelba, M. Cacciato, G. Scarcella, A. Palmieri, E. Vanelli, C. Pernaci, R. di Dio","doi":"10.1109/SPEEDAM.2018.8445331","DOIUrl":"https://doi.org/10.1109/SPEEDAM.2018.8445331","url":null,"abstract":"In this paper are presented FPGA-based models of IGBT power converters for hardware in the loop systems. The analytical model of each single power device is straightforwardly obtained from technical specifications. The proposed approach can be considered a viable solution featuring minimal modeling complexity and thus reduced computational efforts, still maintaining high accuracy. The main target is to provide an easy model plant for testing electric drive configurations and control strategies, fault tolerant drives, and so on. The Field-Programmable Gate Arrays (FPGA)-based real-time models have been used to simulate a step down dc-dc converter and a 10kW three-phase inverter for automotive applications. The results carried out using the hardware in the loop system are in good agreement with that obtained from off-line numerical simulations and experimental tests.","PeriodicalId":117883,"journal":{"name":"2018 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128789679","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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