Pub Date : 2006-06-18DOI: 10.1109/PESC.2006.1712083
C. Meyer, C. Romaus, R. D. De Doncker
Voltage sags are a major problem in present distribution systems. Therefore, different solutions are examined to compensate these sags and to avoid production losses at sensitive loads. Especially, dynamic voltage restorers (DVR) are one solution to realize this goal. Presently, a system wide integration of DVRs is hampered because of costs. Voltage sag compensation requires energy storage, the amount of which depends greatly on the required voltage level (VDVR). Present control strategies are either able to minimize the needed voltage, to allow a better utilization of the storage system or to minimize the distortions at the load. To avoid this drawback an optimized control strategy is presented in this paper, which is able to reduce the voltage amplitude and causes low distortions at the load side. In the following paper, a brief introduction of the basic DVR principle is given. After this, different control strategies are briefly described, before an optimized strategy is presented. Finally, simulation results are shown to verify and prove the functionality of the presented control strategy
{"title":"Optimized Control Strategy for a Medium-Voltage DVR","authors":"C. Meyer, C. Romaus, R. D. De Doncker","doi":"10.1109/PESC.2006.1712083","DOIUrl":"https://doi.org/10.1109/PESC.2006.1712083","url":null,"abstract":"Voltage sags are a major problem in present distribution systems. Therefore, different solutions are examined to compensate these sags and to avoid production losses at sensitive loads. Especially, dynamic voltage restorers (DVR) are one solution to realize this goal. Presently, a system wide integration of DVRs is hampered because of costs. Voltage sag compensation requires energy storage, the amount of which depends greatly on the required voltage level (VDVR). Present control strategies are either able to minimize the needed voltage, to allow a better utilization of the storage system or to minimize the distortions at the load. To avoid this drawback an optimized control strategy is presented in this paper, which is able to reduce the voltage amplitude and causes low distortions at the load side. In the following paper, a brief introduction of the basic DVR principle is given. After this, different control strategies are briefly described, before an optimized strategy is presented. Finally, simulation results are shown to verify and prove the functionality of the presented control strategy","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122453460","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581641
Y. Lang, Dianguo Xu, S. Hadianamrei, Hongfei Ma
LCL type filter becomes more and more attractive as utility interface for grid-connected voltage source rectifier (VSR). Compared to L type filter, LCL type filter can render better switching harmonics attenuation using lower inductance, which makes it suitable for higher power applications. However, LCL filter design is complex and needs to consider many constraints, such as current ripple through inductors, total impedance of the filter, switching harmonic attenuation, resonance phenomenon and reactive power absorbed by filter capacitors, etc. Try-error method is inconvenient and time-consuming. This paper proposes a novel method for LCL type filter design, which makes the task very convenient. At first, the total inductance should be determined according to current ripple requirement. With filter capacitor insertion, total inductance is split into two parts. A set of equations is obtained to represent the relationship between the impedances at switching frequency with consideration of switching harmonic attenuation and reactive power constrains. The other constraints are considered as the limitation for solvability condition for equations. So the overall design can be easily done by solving the equations. Step-by-step design procedure is described as a design example, which is verified on the experimental set-up
{"title":"A Novel Design Method of LCL Type Utility Interface for Three-Phase Voltage Source Rectifier","authors":"Y. Lang, Dianguo Xu, S. Hadianamrei, Hongfei Ma","doi":"10.1109/PESC.2005.1581641","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581641","url":null,"abstract":"LCL type filter becomes more and more attractive as utility interface for grid-connected voltage source rectifier (VSR). Compared to L type filter, LCL type filter can render better switching harmonics attenuation using lower inductance, which makes it suitable for higher power applications. However, LCL filter design is complex and needs to consider many constraints, such as current ripple through inductors, total impedance of the filter, switching harmonic attenuation, resonance phenomenon and reactive power absorbed by filter capacitors, etc. Try-error method is inconvenient and time-consuming. This paper proposes a novel method for LCL type filter design, which makes the task very convenient. At first, the total inductance should be determined according to current ripple requirement. With filter capacitor insertion, total inductance is split into two parts. A set of equations is obtained to represent the relationship between the impedances at switching frequency with consideration of switching harmonic attenuation and reactive power constrains. The other constraints are considered as the limitation for solvability condition for equations. So the overall design can be easily done by solving the equations. Step-by-step design procedure is described as a design example, which is verified on the experimental set-up","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115130945","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581842
R. Benavides, P. Mutschler
A system of linear drives is proposed for process integrated material handling. On a carriage way several vehicles (work piece carriers) should be able to travel with a high degree of independency. The carriage way must allow for curves and for closed paths. A permanent magnet synchronous long stator linear motor with passive, lightweight vehicles is proposed, which does not need any energy or information transferred to the vehicles. The long stator is divided into several sections, each section is fed by an inverter providing individual control of several vehicles. Multiple inverters exchange information with the vehicle controllers via a time triggered inverter bus. A standard PC with additional interface cards is used to control vehicles. During transition between stator segments, the position dependent force is produced by controlling two inverters simultaneously. EMF and thrust force are measured and compared to FEM -calculation results
{"title":"Controlling a System of Linear Drives","authors":"R. Benavides, P. Mutschler","doi":"10.1109/PESC.2005.1581842","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581842","url":null,"abstract":"A system of linear drives is proposed for process integrated material handling. On a carriage way several vehicles (work piece carriers) should be able to travel with a high degree of independency. The carriage way must allow for curves and for closed paths. A permanent magnet synchronous long stator linear motor with passive, lightweight vehicles is proposed, which does not need any energy or information transferred to the vehicles. The long stator is divided into several sections, each section is fed by an inverter providing individual control of several vehicles. Multiple inverters exchange information with the vehicle controllers via a time triggered inverter bus. A standard PC with additional interface cards is used to control vehicles. During transition between stator segments, the position dependent force is produced by controlling two inverters simultaneously. EMF and thrust force are measured and compared to FEM -calculation results","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115367097","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581790
L.C. Tomaselli, T. Lazzarin, D. Martins, I. Barbi
In this paper a drive for a symmetrical two phase induction machine using vector modulation is studied. A comparison is made among different types of space vector modulation (discontinuous and continuous) and a new one is proposed. The concepts of vector modulation are reviewed. Experimental results to validate the theoretical statements are shown
{"title":"Application of the Vector Modulation in the Symmetrical Two-Phase Induction Machine Drive","authors":"L.C. Tomaselli, T. Lazzarin, D. Martins, I. Barbi","doi":"10.1109/PESC.2005.1581790","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581790","url":null,"abstract":"In this paper a drive for a symmetrical two phase induction machine using vector modulation is studied. A comparison is made among different types of space vector modulation (discontinuous and continuous) and a new one is proposed. The concepts of vector modulation are reviewed. Experimental results to validate the theoretical statements are shown","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115487448","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581673
C. Canesin, F. Gonçalves
This paper presents a 2 kW single-phase high power factor boost rectifier with four cells in interleave connection, operating in critical conduction mode, and employing a soft-switching technique, controlled by field programmable gate array (FPGA). The soft-switching technique is based on zero-current-switching (ZCS) cells, providing ZC (zero-current) turn-on and ZCZV (zero-current-zero-voltage) turn-off for the active switches, and ZV (zero-voltage) turn-on and ZC (zero-current) turn-off for the boost diodes. The disadvantages related to reverse recovery effects of boost diodes operated in continuous conduction mode (additional losses, and electromagnetic interference (EMI) problems) are minimized, due to the operation in critical conduction mode. In addition, due to the interleaving technique, the rectifier's features include the reduction in the input current ripple, the reduction in the output voltage ripple, the use of low stress devices, low volume for the EMI input filter, high input power factor (PF), and low total harmonic distortion (THD) in the input current, in compliance with the IEC61000-3-2 standards. The digital controller has been developed using a hardware description language (VHDL) and implemented using a XC2S200E-SpartanII-E/Xilinx FPGA device, performing a true critical conduction operation mode for four interleaved cells, and a closed-loop to provide the output voltage regulation, like as a pre-regulator rectifier. Experimental results are presented for a 2 kW implemented prototype with four interleaved cells, 400 V nominal output voltage and 220 Vrms nominal input voltage, in order to verify the feasibility and performance of the proposed digital control through the use of a FPGA device
{"title":"A 2kW Interleaved ZCS-FM Boost Rectifier Digitally Controlled by FPGA Device","authors":"C. Canesin, F. Gonçalves","doi":"10.1109/PESC.2005.1581673","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581673","url":null,"abstract":"This paper presents a 2 kW single-phase high power factor boost rectifier with four cells in interleave connection, operating in critical conduction mode, and employing a soft-switching technique, controlled by field programmable gate array (FPGA). The soft-switching technique is based on zero-current-switching (ZCS) cells, providing ZC (zero-current) turn-on and ZCZV (zero-current-zero-voltage) turn-off for the active switches, and ZV (zero-voltage) turn-on and ZC (zero-current) turn-off for the boost diodes. The disadvantages related to reverse recovery effects of boost diodes operated in continuous conduction mode (additional losses, and electromagnetic interference (EMI) problems) are minimized, due to the operation in critical conduction mode. In addition, due to the interleaving technique, the rectifier's features include the reduction in the input current ripple, the reduction in the output voltage ripple, the use of low stress devices, low volume for the EMI input filter, high input power factor (PF), and low total harmonic distortion (THD) in the input current, in compliance with the IEC61000-3-2 standards. The digital controller has been developed using a hardware description language (VHDL) and implemented using a XC2S200E-SpartanII-E/Xilinx FPGA device, performing a true critical conduction operation mode for four interleaved cells, and a closed-loop to provide the output voltage regulation, like as a pre-regulator rectifier. Experimental results are presented for a 2 kW implemented prototype with four interleaved cells, 400 V nominal output voltage and 220 Vrms nominal input voltage, in order to verify the feasibility and performance of the proposed digital control through the use of a FPGA device","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124472290","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581966
C. Klumpner
Variable voltage and variable frequency conversion of electrical energy from an AC source to an AC load is done in traditional power converters via a DC-link where an energy storage element (electrolytic capacitors) is situated. Despite its well-known benefits, it has the disadvantage of being bulky and to limit the converter lifetime. On the other hand, direct power conversion (DPC) is an attractive concept, which doesn't need an energy storage buffer, but has two main disadvantages: reduced voltage transfer ratio (<0.86) and low immunity to voltage supply disturbances. This paper proposes a new method to improve both the voltage transfer ratio and the robustness against voltage supply unbalance by employing a new concept of power conversion based on hybrid structures while the installed power and energy storage in the auxiliary converters remain low
{"title":"Hybrid Direct Power Converters with Increased/Higher than Unity Voltage Transfer Ratio and Improved Robustness against Voltage Supply Disturbances","authors":"C. Klumpner","doi":"10.1109/PESC.2005.1581966","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581966","url":null,"abstract":"Variable voltage and variable frequency conversion of electrical energy from an AC source to an AC load is done in traditional power converters via a DC-link where an energy storage element (electrolytic capacitors) is situated. Despite its well-known benefits, it has the disadvantage of being bulky and to limit the converter lifetime. On the other hand, direct power conversion (DPC) is an attractive concept, which doesn't need an energy storage buffer, but has two main disadvantages: reduced voltage transfer ratio (<0.86) and low immunity to voltage supply disturbances. This paper proposes a new method to improve both the voltage transfer ratio and the robustness against voltage supply unbalance by employing a new concept of power conversion based on hybrid structures while the installed power and energy storage in the auxiliary converters remain low","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"28 21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116637402","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581941
Bingsen Wang, G. Venkataramanan
The dynamic voltage restorer as a means of series compensation for mitigating the effect of voltage sags has become established as a preferred approach for improving power quality at sensitive load locations. Meanwhile, the cascaded multilevel type of power converter topology has also become a workhorse topology in high power applications. This paper presents the detailed design of a closed loop regulator to maintain the load voltage within acceptable levels in a DVR using cascaded multilevel converters. The paper presents system operation and controller design approaches, verified using computer simulations and a laboratory scale experimental prototype
{"title":"Operation and Control of a Dynamic Voltage Restorer Realized Using Cascaded H-Bridge Converters","authors":"Bingsen Wang, G. Venkataramanan","doi":"10.1109/PESC.2005.1581941","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581941","url":null,"abstract":"The dynamic voltage restorer as a means of series compensation for mitigating the effect of voltage sags has become established as a preferred approach for improving power quality at sensitive load locations. Meanwhile, the cascaded multilevel type of power converter topology has also become a workhorse topology in high power applications. This paper presents the detailed design of a closed loop regulator to maintain the load voltage within acceptable levels in a DVR using cascaded multilevel converters. The paper presents system operation and controller design approaches, verified using computer simulations and a laboratory scale experimental prototype","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116686420","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581739
Cheng-zhi Wang, Y. Zou, Hongyuan Jin, K. Ding, Xianglian Xu, Yun Zhang
In this paper, a novel single-phase five-level inverter only using five power switches is presented to alleviate harmonic components of the output voltage. The derivation of the topology and its modulation methods are analyzed in the paper. In AC system, nonlinear loads are major sources of total harmonic distortion (THD), so the repetitive control system is given to keep the output voltage being sinusoidal; and the feedback of the capacitor current is added to the control system to quicken the dynamic response. In order to expediently observe the capacitor current, the author uses a digital dimensionality reduction observer. The design methods of the system are discussed in the paper, the feasibility of the system is justified by the simulation and experiments results. The output waveform is perfect, even when the load is nonlinear, the waveform just distorts a little
{"title":"Repetitive Control with State Feedbck on A Single-Phase Five-Level Inverter for Power Quality Improvement","authors":"Cheng-zhi Wang, Y. Zou, Hongyuan Jin, K. Ding, Xianglian Xu, Yun Zhang","doi":"10.1109/PESC.2005.1581739","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581739","url":null,"abstract":"In this paper, a novel single-phase five-level inverter only using five power switches is presented to alleviate harmonic components of the output voltage. The derivation of the topology and its modulation methods are analyzed in the paper. In AC system, nonlinear loads are major sources of total harmonic distortion (THD), so the repetitive control system is given to keep the output voltage being sinusoidal; and the feedback of the capacitor current is added to the control system to quicken the dynamic response. In order to expediently observe the capacitor current, the author uses a digital dimensionality reduction observer. The design methods of the system are discussed in the paper, the feasibility of the system is justified by the simulation and experiments results. The output waveform is perfect, even when the load is nonlinear, the waveform just distorts a little","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"2008 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127318962","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 : 2005-06-16DOI: 10.1109/PESC.2005.1581864
O. Rafael, S. Daneil, K. Charif
A hysteresis control analysis technique to control an active power filter is proposed in this paper. This technique settles the maximum switching frequency of the inverter and the ripple of the compensated current as conditions for continuous cycling of the system. The describing function method is used to develop this technique that consists of the linearization of the current non-linear feedback loop. The linearization is made by deriving the hysteresis complex describing function and then applying the stability limit cycle condition to the current closed-loop to determine the frequency and amplitude values of the error signal. These values are the maximum switching frequency and the current ripple, respectively. A new "describing technique" method is proposed, which permits calculation of these parameters in a simple algebraic equation as a function of the hysteresis band, dc bus voltage and inductive low pass filter value. Moreover, the compromise between the dc bus voltage and inductor value can be evaluated easily as a function of both switching frequency and current ripple requirements. This technique is applied to design a single-phase non-active power compensator. Simulation results have shown that the predicted values are very close to the values obtained by simulation
{"title":"Simple Hysteresis Describing Technique to Control a Non-Active Power Compensator","authors":"O. Rafael, S. Daneil, K. Charif","doi":"10.1109/PESC.2005.1581864","DOIUrl":"https://doi.org/10.1109/PESC.2005.1581864","url":null,"abstract":"A hysteresis control analysis technique to control an active power filter is proposed in this paper. This technique settles the maximum switching frequency of the inverter and the ripple of the compensated current as conditions for continuous cycling of the system. The describing function method is used to develop this technique that consists of the linearization of the current non-linear feedback loop. The linearization is made by deriving the hysteresis complex describing function and then applying the stability limit cycle condition to the current closed-loop to determine the frequency and amplitude values of the error signal. These values are the maximum switching frequency and the current ripple, respectively. A new \"describing technique\" method is proposed, which permits calculation of these parameters in a simple algebraic equation as a function of the hysteresis band, dc bus voltage and inductive low pass filter value. Moreover, the compromise between the dc bus voltage and inductor value can be evaluated easily as a function of both switching frequency and current ripple requirements. This technique is applied to design a single-phase non-active power compensator. Simulation results have shown that the predicted values are very close to the values obtained by simulation","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126146007","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 : 2005-06-16DOI: 10.1109/PESC.2005.1582034
N. Ahmed, A. Eid, H. W. Lee, M. Nakaoka, Y. Miura, T. Ahmed, E. Hiraki
In this paper, a novel type auxiliary active resonant capacitor snubber assisted zero current soft switching pulse modulation single-ended push pull (SEPP) series load resonant inverter with two auxiliary resonant lossless inductor snubbers is proposed for consumer high-frequency induction heating (IH) appliances. Its operating principle in steady state is described by using each mode equivalent circuits. The new multi resonant high-frequency inverter can regulate its output power under a condition of a constant frequency zero current soft switching (ZCS) commutation principle on the basis of asymmetrical PWM control scheme. The consumer brand-new IH products using proposed ZCS-PWM series load resonant SEPP high-frequency inverter is evaluated and discussed as compared with conventional high-frequency inverter on the basis of experimental results. In order to extend ZCS operation ranges under a low power setting PWM, the pulse density modulation (PDM) strategy is demonstrated for high frequency multi resonant inverter. Its practical effectiveness is substantially proved from an application point of view
{"title":"Quasi-Resonant Dual Mode Soft Switching PWM and PDM High-Frequency Inverter with IH Load Resonant Tank","authors":"N. Ahmed, A. Eid, H. W. Lee, M. Nakaoka, Y. Miura, T. Ahmed, E. Hiraki","doi":"10.1109/PESC.2005.1582034","DOIUrl":"https://doi.org/10.1109/PESC.2005.1582034","url":null,"abstract":"In this paper, a novel type auxiliary active resonant capacitor snubber assisted zero current soft switching pulse modulation single-ended push pull (SEPP) series load resonant inverter with two auxiliary resonant lossless inductor snubbers is proposed for consumer high-frequency induction heating (IH) appliances. Its operating principle in steady state is described by using each mode equivalent circuits. The new multi resonant high-frequency inverter can regulate its output power under a condition of a constant frequency zero current soft switching (ZCS) commutation principle on the basis of asymmetrical PWM control scheme. The consumer brand-new IH products using proposed ZCS-PWM series load resonant SEPP high-frequency inverter is evaluated and discussed as compared with conventional high-frequency inverter on the basis of experimental results. In order to extend ZCS operation ranges under a low power setting PWM, the pulse density modulation (PDM) strategy is demonstrated for high frequency multi resonant inverter. Its practical effectiveness is substantially proved from an application point of view","PeriodicalId":131897,"journal":{"name":"2005 IEEE 36th Power Electronics Specialists Conference","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125428487","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：