Pub Date : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697669
Saeed Kavehei, A. Y. Varjani, R. Beiranvand, M. Zare
In this paper, a high step-up quasi-resonant dc-dc converter, based on an interleaved diode-capacitor structure, is introduced and analyzed. High voltage gain is obtained by the use of a diode-capacitor network. Soft switching condition, which includes zero-current switching (ZCS) or zero-voltage switching (ZVS), is resulted for all semiconductor power devices by quasi-resonance technique created by input inductances of the converter along with snubber capacitors across the switches. Reverse recovery problem of diodes is alleviated because of ZCS condition. Then, the switching losses have been reduced considerably and the converter efficiency is improved. With soft switching characteristic, switching frequency can be increased and subsequently the capacity of the passive components is decreased. Also, the voltage stress of power switches is reduced by the series-connected topology in the high-voltage side. Finally, the presented simulation results verify the features of the proposed topology.
{"title":"An Interleaved Diode-Capacitor High Step-Up Quasi-Resonant DC-DC Converter Featuring Soft-Switching Characteristic","authors":"Saeed Kavehei, A. Y. Varjani, R. Beiranvand, M. Zare","doi":"10.1109/PEDSTC.2019.8697669","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697669","url":null,"abstract":"In this paper, a high step-up quasi-resonant dc-dc converter, based on an interleaved diode-capacitor structure, is introduced and analyzed. High voltage gain is obtained by the use of a diode-capacitor network. Soft switching condition, which includes zero-current switching (ZCS) or zero-voltage switching (ZVS), is resulted for all semiconductor power devices by quasi-resonance technique created by input inductances of the converter along with snubber capacitors across the switches. Reverse recovery problem of diodes is alleviated because of ZCS condition. Then, the switching losses have been reduced considerably and the converter efficiency is improved. With soft switching characteristic, switching frequency can be increased and subsequently the capacity of the passive components is decreased. Also, the voltage stress of power switches is reduced by the series-connected topology in the high-voltage side. Finally, the presented simulation results verify the features of the proposed topology.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133531713","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697273
S. Fatemi, Milad Samady Shadlu, Amin Talebkhah
Solar energy and photovoltaic (PV) systems will play an important role in the future production market. One of the challenges in optimal operation of solar PV systems is the low efficiency of these systems compared to fossil fuel production units. The reason is the sudden changes in climate factors, including the temperature and intensity of radiation in the environment. One of the solutions used to solve the low power efficiency problem in PV systems is the MPPT techniques which have been widely investigated by many researchers. In this paper, a new form of conventional Perturb and Observe (P&O) method named three-point P&O is introduced and compared with Hill Climbing (HC) method under constant and variable atmospheric conditions. The DC-DC converter is Boost which has an acceptable performance in solar applications. The simulation results in MATLAB and experimental results indicate a better performance of three-point P&O method in terms of output power fluctuations and maximum power point tracking capability.
{"title":"Comparison of Three-Point P&O and Hill Climbing Methods for Maximum Power Point Tracking in PV Systems","authors":"S. Fatemi, Milad Samady Shadlu, Amin Talebkhah","doi":"10.1109/PEDSTC.2019.8697273","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697273","url":null,"abstract":"Solar energy and photovoltaic (PV) systems will play an important role in the future production market. One of the challenges in optimal operation of solar PV systems is the low efficiency of these systems compared to fossil fuel production units. The reason is the sudden changes in climate factors, including the temperature and intensity of radiation in the environment. One of the solutions used to solve the low power efficiency problem in PV systems is the MPPT techniques which have been widely investigated by many researchers. In this paper, a new form of conventional Perturb and Observe (P&O) method named three-point P&O is introduced and compared with Hill Climbing (HC) method under constant and variable atmospheric conditions. The DC-DC converter is Boost which has an acceptable performance in solar applications. The simulation results in MATLAB and experimental results indicate a better performance of three-point P&O method in terms of output power fluctuations and maximum power point tracking capability.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125465616","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697581
Saeed Khateri-Abri, S. Tohidi, N. Rostami
This paper proposes a novel scheme for direct power control (DPC) of doubly-fed induction generator (DFIG) in wind power applications. In this scheme, a fuzzy logic controller is used for adjusting the bandwidth of active power hysteresis controller in DPC method in order to reduce the active power ripples and improve dynamic response of the generator. Also, in this paper a simpler method is used for determination of the sector number that lowers the burden of the system. Moreover, the rotor position sensor is eliminated and a MRAS observer is used for estimation of the rotor position. Simulation results by using MATLAB/Simulink presented for a 2MW DFIG system proves the effectiveness of the proposed control method.
{"title":"Improved Direct Power Control of DFIG Wind Turbine by using a Fuzzy Logic Controller","authors":"Saeed Khateri-Abri, S. Tohidi, N. Rostami","doi":"10.1109/PEDSTC.2019.8697581","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697581","url":null,"abstract":"This paper proposes a novel scheme for direct power control (DPC) of doubly-fed induction generator (DFIG) in wind power applications. In this scheme, a fuzzy logic controller is used for adjusting the bandwidth of active power hysteresis controller in DPC method in order to reduce the active power ripples and improve dynamic response of the generator. Also, in this paper a simpler method is used for determination of the sector number that lowers the burden of the system. Moreover, the rotor position sensor is eliminated and a MRAS observer is used for estimation of the rotor position. Simulation results by using MATLAB/Simulink presented for a 2MW DFIG system proves the effectiveness of the proposed control method.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127288955","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697690
Kambiz Adnani, Sadjad Shafiei, J. Millimonfared, J. Moghani
Utilization of the unipolar Permanent Magnet (PM) strategy in Hybrid Vernier Machines (HVM) leads to leakage flux reduction. But, its ramification is torque decrease. Improving the average torque of the unipolar PM HVMs is the main aim of this paper. To do this, application of the halbach PM array in stator poles is investigated. A conventional unipolar PM HVM is considered and its stator PMs are replaced by halbach arrays. The proposed machine is optimized based on sensitivity analysis to minimize the cogging torque and maximize the first component of Back Electro Motive Force (Back-EMF). Both machines are evaluated by the time-stepping Finite Element Method (FEM). The results confirm that the proposed machine has better performance than the conventional PM HVM.
{"title":"Modified Unipolar Hybrid Permanent Magnet Vernier Machine Using Halbach Array Configuration","authors":"Kambiz Adnani, Sadjad Shafiei, J. Millimonfared, J. Moghani","doi":"10.1109/PEDSTC.2019.8697690","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697690","url":null,"abstract":"Utilization of the unipolar Permanent Magnet (PM) strategy in Hybrid Vernier Machines (HVM) leads to leakage flux reduction. But, its ramification is torque decrease. Improving the average torque of the unipolar PM HVMs is the main aim of this paper. To do this, application of the halbach PM array in stator poles is investigated. A conventional unipolar PM HVM is considered and its stator PMs are replaced by halbach arrays. The proposed machine is optimized based on sensitivity analysis to minimize the cogging torque and maximize the first component of Back Electro Motive Force (Back-EMF). Both machines are evaluated by the time-stepping Finite Element Method (FEM). The results confirm that the proposed machine has better performance than the conventional PM HVM.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128940708","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697743
Mehran Moslehi Bajestan, H. Madadi, M. Shamsinejad
In this paper, a new control method for the paralleled quasi-Z-source inverters (qZSI) with a battery for application in grid-connected photovoltaic (PV) power generation systems is proposed. The use of paralleled inverters in distributed generation (DG) applications has several advantages, such as high degree of redundancy, ease of maintenance and high reliability. By introducing the shoot-through states in the permissible switching states of the inverter bridge, the qZSI can boost/buck the output voltage of PV panel in a wide range. Also, the energy storage system, which is assisted with quasi Z-source network, provides the full use possibility of PV power. The proposed control method can manage the battery power, extract the maximum power from the PV panel, control the inverters output power with desired power factor and maintain the balance of power injected by the paralleled inverters into the grid, simultaneously. Also, the controller system is able to suppress both types of circulating-current, including cross and zero-sequence circulating-currents through a modification of the conventional control schemes. The ability of the proposed PV system is investigated by simulation results carried out using MATLAB/Simulink.
{"title":"Controller Design of Paralleled Quasi-Z-Source Inverters with Battery for Application in Grid-Connected Photovoltaic Power Generation System","authors":"Mehran Moslehi Bajestan, H. Madadi, M. Shamsinejad","doi":"10.1109/PEDSTC.2019.8697743","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697743","url":null,"abstract":"In this paper, a new control method for the paralleled quasi-Z-source inverters (qZSI) with a battery for application in grid-connected photovoltaic (PV) power generation systems is proposed. The use of paralleled inverters in distributed generation (DG) applications has several advantages, such as high degree of redundancy, ease of maintenance and high reliability. By introducing the shoot-through states in the permissible switching states of the inverter bridge, the qZSI can boost/buck the output voltage of PV panel in a wide range. Also, the energy storage system, which is assisted with quasi Z-source network, provides the full use possibility of PV power. The proposed control method can manage the battery power, extract the maximum power from the PV panel, control the inverters output power with desired power factor and maintain the balance of power injected by the paralleled inverters into the grid, simultaneously. Also, the controller system is able to suppress both types of circulating-current, including cross and zero-sequence circulating-currents through a modification of the conventional control schemes. The ability of the proposed PV system is investigated by simulation results carried out using MATLAB/Simulink.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129091205","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697785
H. Beiranvand, E. Rokrok, Marco Liserre
Dual-Active-Bridge (DAB) converters are able to step up/down DC voltage in a wide range by adopting medium frequency transformer (MFT) for isolating and converting voltage level. Increase in switching frequency of Si IGBTs reduces the MFT size instead it intensifies the semiconductor switching losses which leads to increase in the heatsink size. In this paper variation of heatsink volume versus frequency is compared versus MFT. MFT and heatsink volume of a 5 kW 600 to 400 V DAB converter are optimized. Obtained results show that variation of switching frequency in range 1-10 kHz increases the size of optimal heatsink by 3 times, i.e ${V_{HS,opt}} propto sqrt {{f_s}[kHz]} $.
{"title":"Volume Optimization in Si IGBT based Dual-Active-Bridge Converters","authors":"H. Beiranvand, E. Rokrok, Marco Liserre","doi":"10.1109/PEDSTC.2019.8697785","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697785","url":null,"abstract":"Dual-Active-Bridge (DAB) converters are able to step up/down DC voltage in a wide range by adopting medium frequency transformer (MFT) for isolating and converting voltage level. Increase in switching frequency of Si IGBTs reduces the MFT size instead it intensifies the semiconductor switching losses which leads to increase in the heatsink size. In this paper variation of heatsink volume versus frequency is compared versus MFT. MFT and heatsink volume of a 5 kW 600 to 400 V DAB converter are optimized. Obtained results show that variation of switching frequency in range 1-10 kHz increases the size of optimal heatsink by 3 times, i.e ${V_{HS,opt}} propto sqrt {{f_s}[kHz]} $.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122888126","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697533
Milad Babalou, Morteza Dezhbord, R. Alishah, Seyed Amir Hossein Hosseini
In this paper, a new non-isolated high gain dc-dc converter based on coupled inductor is introduced. The proposed converter is comprised of two boost converters and two voltage multiplier cells (VMC). In comparison with recently presented ultra high step-up dc-dc converters, the voltage stresses on semiconductors of proposed converter are reduced along with increasing of the voltage gain. In addition, all used MOSFETs in the proposed converter are turned-on under zero voltage and zero current switching (ZVZCS) condition. Moreover, all diodes are turned-off under zero current switching (ZCS) condition. Therefore, the switching loss of presented converter is reduced. These factors are caused the proposed converter become a good choice in comparison with traditional high gain dc-dc converters. The steady-state analysis, design consideration and simulation results of the typical 40V/1100V, 490W, 25kHz converter are given.
{"title":"A Soft-Switched Ultra High Gain DC-DC Converter with Reduced Stress voltage on Semiconductors","authors":"Milad Babalou, Morteza Dezhbord, R. Alishah, Seyed Amir Hossein Hosseini","doi":"10.1109/PEDSTC.2019.8697533","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697533","url":null,"abstract":"In this paper, a new non-isolated high gain dc-dc converter based on coupled inductor is introduced. The proposed converter is comprised of two boost converters and two voltage multiplier cells (VMC). In comparison with recently presented ultra high step-up dc-dc converters, the voltage stresses on semiconductors of proposed converter are reduced along with increasing of the voltage gain. In addition, all used MOSFETs in the proposed converter are turned-on under zero voltage and zero current switching (ZVZCS) condition. Moreover, all diodes are turned-off under zero current switching (ZCS) condition. Therefore, the switching loss of presented converter is reduced. These factors are caused the proposed converter become a good choice in comparison with traditional high gain dc-dc converters. The steady-state analysis, design consideration and simulation results of the typical 40V/1100V, 490W, 25kHz converter are given.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126557456","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697731
Behnam Zamanzad Ghavidel, E. Babaei, S. Hosseini
An improved non-isolated three-input DC-DC boost converter is proposed in this paper. The proposed topology has the capability of optimizing the energy conversion within the smart homes. The recommended structure is designed for flexible energy systems such as smart homes, smart cities, and electric vehicles. The suggested structure has employed a boost type converter as well as multi-input and single output (MISO) converter along with renewable sources. The proposed converter consists of two unidirectional input power ports and two bidirectional ports for a storage element in an integrated structure. The proposed converter has several input sources with different voltage levels which are fixed at mid voltage ranges. Also, it includes a step-up gain to boost voltage to higher ranges by a gain cell. In order to optimally supply the output load and charge or discharge the battery storage, photovoltaic (PV) and fuel cell (FC) along with bidirectional loads could be exclusively or simultaneously employed as power resources. The main feature of the proposed converter is presented as follows: flexible bidirectional load can be charged at home during the daytime, while it could be discharged at nights when the demand is the maximum in which the system is usually faced with overload. To verify the performance of the proposed structure, simulations are carried out using PSCAD/EMTDC software and the results are presented to prove the practicality of proposed algorithm in covering renewable resources and dynamically managing energy consumption.
{"title":"An Improved Three-Input DC-DC Boost Converter for Hybrid PV/FC/Battery and Bidirectional Load as Backup System for Smart Home","authors":"Behnam Zamanzad Ghavidel, E. Babaei, S. Hosseini","doi":"10.1109/PEDSTC.2019.8697731","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697731","url":null,"abstract":"An improved non-isolated three-input DC-DC boost converter is proposed in this paper. The proposed topology has the capability of optimizing the energy conversion within the smart homes. The recommended structure is designed for flexible energy systems such as smart homes, smart cities, and electric vehicles. The suggested structure has employed a boost type converter as well as multi-input and single output (MISO) converter along with renewable sources. The proposed converter consists of two unidirectional input power ports and two bidirectional ports for a storage element in an integrated structure. The proposed converter has several input sources with different voltage levels which are fixed at mid voltage ranges. Also, it includes a step-up gain to boost voltage to higher ranges by a gain cell. In order to optimally supply the output load and charge or discharge the battery storage, photovoltaic (PV) and fuel cell (FC) along with bidirectional loads could be exclusively or simultaneously employed as power resources. The main feature of the proposed converter is presented as follows: flexible bidirectional load can be charged at home during the daytime, while it could be discharged at nights when the demand is the maximum in which the system is usually faced with overload. To verify the performance of the proposed structure, simulations are carried out using PSCAD/EMTDC software and the results are presented to prove the practicality of proposed algorithm in covering renewable resources and dynamically managing energy consumption.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115380630","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697285
Vafa Marzang, Peyman Alavi, Morteza Dezhbord, S. Hosseini, N. Rostami
In this paper a high step up non isolated DC-DC converter with extendable topology is proposed. This converter is symmetric and by using this structure it can be possible to achieve high voltage gain in low duty cycle range. This converter consists of m + n+ 2 Active Passive Inductor Cell (APIC) and a Voltage Multiplier Cell (VMC). In addition to increasing voltage gain, the VMC decreases voltage stress on the switches and diodes. Operational modes and steady state analysis of proposed converter will be discussed completely, also voltage gain and voltage stress on the switches and diodes will be formulated. Different components will be designed for example output capacitor will be designed in order to decrease output voltage ripple. Voltage gain and voltage stress on the switches will be compared with related structure to illustrate advantages of proposed converter. In order to verify theoretical analysis of proposed converter will be simulated in PSCAD and results of this simulation will be analyzed completely. In this simulation input voltage is equal to 20V and provides 500 W power in output
{"title":"Symmetric Extendable Ultra High Step-Up Non-Isolated DC-DC Converter","authors":"Vafa Marzang, Peyman Alavi, Morteza Dezhbord, S. Hosseini, N. Rostami","doi":"10.1109/PEDSTC.2019.8697285","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697285","url":null,"abstract":"In this paper a high step up non isolated DC-DC converter with extendable topology is proposed. This converter is symmetric and by using this structure it can be possible to achieve high voltage gain in low duty cycle range. This converter consists of m + n+ 2 Active Passive Inductor Cell (APIC) and a Voltage Multiplier Cell (VMC). In addition to increasing voltage gain, the VMC decreases voltage stress on the switches and diodes. Operational modes and steady state analysis of proposed converter will be discussed completely, also voltage gain and voltage stress on the switches and diodes will be formulated. Different components will be designed for example output capacitor will be designed in order to decrease output voltage ripple. Voltage gain and voltage stress on the switches will be compared with related structure to illustrate advantages of proposed converter. In order to verify theoretical analysis of proposed converter will be simulated in PSCAD and results of this simulation will be analyzed completely. In this simulation input voltage is equal to 20V and provides 500 W power in output","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129456866","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 : 2019-02-01DOI: 10.1109/PEDSTC.2019.8697277
A. Farhadi-Beiranvand, R. Alipour-sarabi, Z. Nasiri-Gheidari, F. Tootoonchian
Wound-Rotor (WR) resolvers are similar to two-phase synchronous generators. Their difference is related to the excitation signal. While DC voltage is used for exciting synchronous generator, high frequency AC voltage is employed for that of resolver. The common waveform for excitation signal of resolver is sinusoidal voltage. However, preparing the high frequency sinusoidal voltage in the resolver to digital converter (RDC) is always a challenge. Therefore, in this paper different high frequency AC waveforms are applied as the excitation signal of the resolver and the estimated position, resulted from RDC, is discussed. The aim of this work is to find an appropriate excitation waveform that ensures the high accuracy operation of resolver beside the simple implementation possibility for RDC. Output analogue voltages are obtained using time stepping finite element analysis. Then, the amplitude modulated (AM) signals are imported to the MATLAB where two demodulation techniques are compared for calculating the voltages’ envelope and the position error. Finally, experimental measurements validate the simulation results.
{"title":"Selection of Excitation Signal Waveform for Improved Performance of Wound-Rotor Resolver*","authors":"A. Farhadi-Beiranvand, R. Alipour-sarabi, Z. Nasiri-Gheidari, F. Tootoonchian","doi":"10.1109/PEDSTC.2019.8697277","DOIUrl":"https://doi.org/10.1109/PEDSTC.2019.8697277","url":null,"abstract":"Wound-Rotor (WR) resolvers are similar to two-phase synchronous generators. Their difference is related to the excitation signal. While DC voltage is used for exciting synchronous generator, high frequency AC voltage is employed for that of resolver. The common waveform for excitation signal of resolver is sinusoidal voltage. However, preparing the high frequency sinusoidal voltage in the resolver to digital converter (RDC) is always a challenge. Therefore, in this paper different high frequency AC waveforms are applied as the excitation signal of the resolver and the estimated position, resulted from RDC, is discussed. The aim of this work is to find an appropriate excitation waveform that ensures the high accuracy operation of resolver beside the simple implementation possibility for RDC. Output analogue voltages are obtained using time stepping finite element analysis. Then, the amplitude modulated (AM) signals are imported to the MATLAB where two demodulation techniques are compared for calculating the voltages’ envelope and the position error. Finally, experimental measurements validate the simulation results.","PeriodicalId":296229,"journal":{"name":"2019 10th International Power Electronics, Drive Systems and Technologies Conference (PEDSTC)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129060988","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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