Pub Date : 2016-12-07DOI: 10.1109/SPEC.2016.7845994
J. A. Qureshi, T. Lie, R. Hasan, T. Mujtaba
Power shortage is one of the major challenges that is being encountered globally. Conservation of energy is an effective and economical solution to cater the increasing electricity demand as compared to electricity generation. Increasing generation has a profound impact on the excessive emission of greenhouse gases (GHGs). In this paper, Light Emitting Diode (LED) lamps are presented as an efficient DC loads to influence the electricity demand curves. The application of the tool is carried out on the monthly demand curves obtained from National Electric Power Regulation Authority (NEPRA) of Pakistan. A considerable decline in the monthly power demand is observed by implementing the suggested solution which is equivalent to a large power generation plant. The solution presented is also an effective way to cater the gap between electricity supply and demand. The proposed recommendation for modern lighting can solve the power issue by taking care of environment contamination and would be a vital step towards a pollution free, ecological planet. Similar effects can be observed for other efficient DC loads.
{"title":"Impact of efficient DC loads: LED lighting as equivalent to large power generation plant","authors":"J. A. Qureshi, T. Lie, R. Hasan, T. Mujtaba","doi":"10.1109/SPEC.2016.7845994","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7845994","url":null,"abstract":"Power shortage is one of the major challenges that is being encountered globally. Conservation of energy is an effective and economical solution to cater the increasing electricity demand as compared to electricity generation. Increasing generation has a profound impact on the excessive emission of greenhouse gases (GHGs). In this paper, Light Emitting Diode (LED) lamps are presented as an efficient DC loads to influence the electricity demand curves. The application of the tool is carried out on the monthly demand curves obtained from National Electric Power Regulation Authority (NEPRA) of Pakistan. A considerable decline in the monthly power demand is observed by implementing the suggested solution which is equivalent to a large power generation plant. The solution presented is also an effective way to cater the gap between electricity supply and demand. The proposed recommendation for modern lighting can solve the power issue by taking care of environment contamination and would be a vital step towards a pollution free, ecological planet. Similar effects can be observed for other efficient DC loads.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"227 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131329799","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 : 2016-12-07DOI: 10.1109/SPEC.2016.7846188
Kasun Subasinghage, K. Gunawardane, T. Lie, N. Kularatna
The Supercapacitor Assisted Low Dropout Regulator (SCALDO) is a novel approach to achieving high end-to-end efficiency (ETEE) in linear, step-down, DC-DC converters. This is a patented technique and it has been well established with various proof-of-concept prototypes showing its efficiency advantage in the range of a factor of 1.33 to 3 along with the other excellent linear characteristics such as low noise and high slew rate. As a better way of utilizing this approach to match multiple voltage rail applications such as mobile battery operated products, processor-based systems, automotive systems, and data centers, a further extension to the technique called Dual-Output Supercapacitor Assisted Low Dropout Regulator (DO-SCALDO) has been suggested. In this paper, the design approach and the practical implementation details of a prototype version of 5V-to-dual 1.8 V DO-SCALDO are discussed.
超级电容辅助低差调节器(SCALDO)是一种在线性降压DC-DC转换器中实现高端到端效率(ETEE)的新方法。这是一项专利技术，它已经很好地建立了各种概念验证原型，显示其在1.33到3的系数范围内的效率优势，以及其他优秀的线性特性，如低噪声和高转换率。作为一种更好的方法，利用这种方法来匹配多个电压轨应用，如移动电池供电产品、基于处理器的系统、汽车系统和数据中心，已经提出了一种进一步扩展的技术，称为双输出超级电容器辅助低差调节器(DO-SCALDO)。本文讨论了一种5v -双1.8 V DO-SCALDO的原型设计方法和具体实现细节。
{"title":"Design of an efficiency improved dual-output DC-DC converter utilizing a supercapacitor circulation technique","authors":"Kasun Subasinghage, K. Gunawardane, T. Lie, N. Kularatna","doi":"10.1109/SPEC.2016.7846188","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846188","url":null,"abstract":"The Supercapacitor Assisted Low Dropout Regulator (SCALDO) is a novel approach to achieving high end-to-end efficiency (ETEE) in linear, step-down, DC-DC converters. This is a patented technique and it has been well established with various proof-of-concept prototypes showing its efficiency advantage in the range of a factor of 1.33 to 3 along with the other excellent linear characteristics such as low noise and high slew rate. As a better way of utilizing this approach to match multiple voltage rail applications such as mobile battery operated products, processor-based systems, automotive systems, and data centers, a further extension to the technique called Dual-Output Supercapacitor Assisted Low Dropout Regulator (DO-SCALDO) has been suggested. In this paper, the design approach and the practical implementation details of a prototype version of 5V-to-dual 1.8 V DO-SCALDO are discussed.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"138 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131626827","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 : 2016-12-06DOI: 10.1109/SPEC.2016.7846193
Abdelhady Ghanem, M. Rashed, M. Sumner, M. Elsayes, I. Mansy
A method for hybrid active damping in power converters connected to a weak grid using an LCL filter is proposed. It uses feedback of the grid current and capacitor voltage and is derived as an equivalent to the capacitor current feedback active damping method. A co-design procedure for the grid current controller with the proposed hybrid active damping method is presented. The robustness, system bandwidth and harmonic rejection are studied. The proposed method is applied to a single grid connected converter with variable grid inductance to investigate its ability to damp different system resonance frequencies and its effectiveness is verified via frequency domain analysis and time domain simulation.
{"title":"Hybrid active damping of LCL-filtered grid connected converter","authors":"Abdelhady Ghanem, M. Rashed, M. Sumner, M. Elsayes, I. Mansy","doi":"10.1109/SPEC.2016.7846193","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846193","url":null,"abstract":"A method for hybrid active damping in power converters connected to a weak grid using an LCL filter is proposed. It uses feedback of the grid current and capacitor voltage and is derived as an equivalent to the capacitor current feedback active damping method. A co-design procedure for the grid current controller with the proposed hybrid active damping method is presented. The robustness, system bandwidth and harmonic rejection are studied. The proposed method is applied to a single grid connected converter with variable grid inductance to investigate its ability to damp different system resonance frequencies and its effectiveness is verified via frequency domain analysis and time domain simulation.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"402 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122787298","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 : 2016-12-05DOI: 10.1109/SPEC.2016.7846164
N. Müller, S. Kouro, H. Renaudineau, P. Wheeler
Central inverters are the most common configuration for large-scale photovoltaic systems. Under partial shading or any non-uniform conditions on the photovoltaic plant, several power maxima may arise. Conventional perturb and observe and other classical maximum power point tracking algorithms are capable of tracking a local maximum, but can not guarantee to operate at the global maximum. A solution to such limitation is to perform a scan of the photovoltaic characteristic periodically in order to ensure operation at the global maximum. However, such a scan generates high output power variations that may not comply with grid codes. In order to overcome this drawback and allow a global scan for maximum power point tracking purposes, this paper proposes a hybrid photovoltaic system with an ultra-capacitor-based energy storage system. Simulations are provided to validate the proposed configuration. Results show that the photovoltaic scan allows operation at the global maximum power point, while the ultra-capacitor bank manages the power transient so that the power output fluctuation is kept within grid-code limits.
{"title":"Energy storage system for global maximum power point tracking on central inverter PV plants","authors":"N. Müller, S. Kouro, H. Renaudineau, P. Wheeler","doi":"10.1109/SPEC.2016.7846164","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846164","url":null,"abstract":"Central inverters are the most common configuration for large-scale photovoltaic systems. Under partial shading or any non-uniform conditions on the photovoltaic plant, several power maxima may arise. Conventional perturb and observe and other classical maximum power point tracking algorithms are capable of tracking a local maximum, but can not guarantee to operate at the global maximum. A solution to such limitation is to perform a scan of the photovoltaic characteristic periodically in order to ensure operation at the global maximum. However, such a scan generates high output power variations that may not comply with grid codes. In order to overcome this drawback and allow a global scan for maximum power point tracking purposes, this paper proposes a hybrid photovoltaic system with an ultra-capacitor-based energy storage system. Simulations are provided to validate the proposed configuration. Results show that the photovoltaic scan allows operation at the global maximum power point, while the ultra-capacitor bank manages the power transient so that the power output fluctuation is kept within grid-code limits.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"795 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131774207","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 : 2016-12-01DOI: 10.1109/SPEC.2016.7846219
K. Tarakanath, S. Patwardhan, V. Agarwal
In this work, output voltage tracking problem of non-minimum phase (NMP) boost type dc-dc converter in continuous conduction mode (CCM) is studied under the internal model control (IMC) framework. If it is desired to implement large set-point changes, then the manipulated inputs can get saturated during the transients and the closed-loop performance can deteriorate if no provision is made for anti-reset windup. To deal with the reset windup caused by the input saturation, an anti-windup compensator is introduced within the IMC framework, which consists of a first order filter that becomes active only after input saturation occurs. Tuning guidelines are provided for selecting the filter parameters. The efficacy of the modified IMC method has been verified using MATLAB simulations of a boost type dc-dc converter. To assess feasibility of integrating the proposed approach with real applications, hardware experiments were carried out using an FPGA based module (NI-CompactRIO-9104) on the prototype boost converter. The simulations studies as well as the experimental evaluations clearly indicate that, with reference to the input behaviour obtained without anti-windup compensation, the input quickly desaturates when the modified scheme is employed and this leads to significant improvement in the closed-loop responses.
{"title":"Implementation of an internal model controller with anti-reset windup compensation for output voltage tracking of a non-minimum phase dc-dc boost converter using FPGA","authors":"K. Tarakanath, S. Patwardhan, V. Agarwal","doi":"10.1109/SPEC.2016.7846219","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846219","url":null,"abstract":"In this work, output voltage tracking problem of non-minimum phase (NMP) boost type dc-dc converter in continuous conduction mode (CCM) is studied under the internal model control (IMC) framework. If it is desired to implement large set-point changes, then the manipulated inputs can get saturated during the transients and the closed-loop performance can deteriorate if no provision is made for anti-reset windup. To deal with the reset windup caused by the input saturation, an anti-windup compensator is introduced within the IMC framework, which consists of a first order filter that becomes active only after input saturation occurs. Tuning guidelines are provided for selecting the filter parameters. The efficacy of the modified IMC method has been verified using MATLAB simulations of a boost type dc-dc converter. To assess feasibility of integrating the proposed approach with real applications, hardware experiments were carried out using an FPGA based module (NI-CompactRIO-9104) on the prototype boost converter. The simulations studies as well as the experimental evaluations clearly indicate that, with reference to the input behaviour obtained without anti-windup compensation, the input quickly desaturates when the modified scheme is employed and this leads to significant improvement in the closed-loop responses.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"109 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121241959","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 : 2016-12-01DOI: 10.1109/SPEC.2016.7846082
Shu-Hung Liao, J. Teng, Siwei Chen
A bidirectional DC-DC converter with high step-down and step-up voltage conversion ratio is proposed in this paper. Two capacitors series in the high-voltage side of proposed converter are used for voltage division. The divided voltages are then discharged to and charged from the low-voltage side by a modified two-phase interleaved buck-boost converter, respectively. Due to stacking architecture of the proposed converter, high bidirectional voltage conversion ratio with low voltage stresses on power switches can be achieved by the proposed converter with reasonable duty ratio. Besides, a smart phase-rotating control scheme can be integrated into the proposed converter to improve the conversion efficiency at light loads. A prototype circuit with a voltage of 200V in high-voltage side, a voltage of 24V in low-voltage side and a rated output power of 500W is implemented to verify the performance of proposed bidirectional DC-DC converter. Experimental results show that the maximum conversion efficiencies, about 93.40% and 93.86%, for step-down mode and step-up mode, respectively along with lower voltage stresses on power switches can be achieved. Besides, a conversion efficiency improvement of 5.42% can be accomplished for the proposed converter with smart phase-rotating control scheme under 25W.
{"title":"Bidirectional DC-DC converter with high step-down and step-up voltage conversion ratio","authors":"Shu-Hung Liao, J. Teng, Siwei Chen","doi":"10.1109/SPEC.2016.7846082","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846082","url":null,"abstract":"A bidirectional DC-DC converter with high step-down and step-up voltage conversion ratio is proposed in this paper. Two capacitors series in the high-voltage side of proposed converter are used for voltage division. The divided voltages are then discharged to and charged from the low-voltage side by a modified two-phase interleaved buck-boost converter, respectively. Due to stacking architecture of the proposed converter, high bidirectional voltage conversion ratio with low voltage stresses on power switches can be achieved by the proposed converter with reasonable duty ratio. Besides, a smart phase-rotating control scheme can be integrated into the proposed converter to improve the conversion efficiency at light loads. A prototype circuit with a voltage of 200V in high-voltage side, a voltage of 24V in low-voltage side and a rated output power of 500W is implemented to verify the performance of proposed bidirectional DC-DC converter. Experimental results show that the maximum conversion efficiencies, about 93.40% and 93.86%, for step-down mode and step-up mode, respectively along with lower voltage stresses on power switches can be achieved. Besides, a conversion efficiency improvement of 5.42% can be accomplished for the proposed converter with smart phase-rotating control scheme under 25W.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127210241","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 : 2016-12-01DOI: 10.1109/SPEC.2016.7846221
S. Jayasinghe, Monaaf D. A. Al-Falahi, H. Enshaei, N. Fernando, A. Tashakori
The colloquial term ‘cold-ironing’ refers to the shore power connection when a ship is at berth. Even though, cold-ironing is not new to the shipping industry only recently it received more attention, mainly due to strict emission regulations. When a ship receives shore power, its emissions can be eliminated and thus cold-ironing is becoming a popular service sought by ships that berth at emission controlled ports. Generally, the shore power connection is available only at berth and thus emissions from the ships that are anchored in and around the port is still a significant issue. This paper proposes a floating power platform for ‘Mobile Cold-ironing’ of anchored ships. In the proposed system, a fuel cell — battery hybrid system is used as the source. Efficacy of the proposed system in supplying dynamic loads is verified with simulation results.
{"title":"Floating power platforms for mobile cold-ironing","authors":"S. Jayasinghe, Monaaf D. A. Al-Falahi, H. Enshaei, N. Fernando, A. Tashakori","doi":"10.1109/SPEC.2016.7846221","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846221","url":null,"abstract":"The colloquial term ‘cold-ironing’ refers to the shore power connection when a ship is at berth. Even though, cold-ironing is not new to the shipping industry only recently it received more attention, mainly due to strict emission regulations. When a ship receives shore power, its emissions can be eliminated and thus cold-ironing is becoming a popular service sought by ships that berth at emission controlled ports. Generally, the shore power connection is available only at berth and thus emissions from the ships that are anchored in and around the port is still a significant issue. This paper proposes a floating power platform for ‘Mobile Cold-ironing’ of anchored ships. In the proposed system, a fuel cell — battery hybrid system is used as the source. Efficacy of the proposed system in supplying dynamic loads is verified with simulation results.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123719597","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 : 2016-12-01DOI: 10.1109/SPEC.2016.7845996
M. Xiaohe, W. Shuai, Su Rong, T. K. Jet, Viswanathan Vaiyapuri, G. Amit, Shanmukha, R. Krishna, G. Chandana
With the increase of power offtake requirements, it is proposed that the more electric engine (MEE) draws electrical power from a generator mounted directly on the gas turbine shaft-line without the use of a gearbox. It is expected that this arrangement will improve the power density and reliability of the whole system. The challenges include limited available space, high temperature, affordability, high power density and an exceedingly high reliability requirement. The segmented rotor flux switching machine is one of the promising topologies that are suitable for this application. The objective of this article is to investigate quantitatively the influence of several design parameters on the electromagnetic performance. The design parameters include, the excitation type, stator split ratio, segmented rotor length and load advance angle. Back EMF, cogging torque, average torque, torque ripple and magnetic force are considered to be the key evaluation criteria and are used to guide the search for the optimized design. The material discussed in this paper may be helpful to provide insight in the selection of key design parameters in the direct shaft-line gas turbine generators.
{"title":"Electromagnetic design and optimization analysis on an embedded segmented rotor flux switching machine","authors":"M. Xiaohe, W. Shuai, Su Rong, T. K. Jet, Viswanathan Vaiyapuri, G. Amit, Shanmukha, R. Krishna, G. Chandana","doi":"10.1109/SPEC.2016.7845996","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7845996","url":null,"abstract":"With the increase of power offtake requirements, it is proposed that the more electric engine (MEE) draws electrical power from a generator mounted directly on the gas turbine shaft-line without the use of a gearbox. It is expected that this arrangement will improve the power density and reliability of the whole system. The challenges include limited available space, high temperature, affordability, high power density and an exceedingly high reliability requirement. The segmented rotor flux switching machine is one of the promising topologies that are suitable for this application. The objective of this article is to investigate quantitatively the influence of several design parameters on the electromagnetic performance. The design parameters include, the excitation type, stator split ratio, segmented rotor length and load advance angle. Back EMF, cogging torque, average torque, torque ripple and magnetic force are considered to be the key evaluation criteria and are used to guide the search for the optimized design. The material discussed in this paper may be helpful to provide insight in the selection of key design parameters in the direct shaft-line gas turbine generators.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125694780","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 : 2016-12-01DOI: 10.1109/SPEC.2016.7846208
Dao Zhou, Huai Wang, F. Blaabjerg
DC capacitors in power electronic converters are a major constraint on improvement of the power density and the reliability. In this paper, according to the degradation data of tested capacitors, the lifetime model of the component is analyzed at various confidence levels. Then, the mission profile based lifetime expectancy of the individual capacitor and the capacitor bank is estimated in a fuel cell backup power converter operating in both standby mode and operation mode. The lifetime prediction of the capacitor banks at different confidence levels is also obtained.
{"title":"Lifetime estimation of electrolytic capacitors in a fuel cell power converter at various confidence levels","authors":"Dao Zhou, Huai Wang, F. Blaabjerg","doi":"10.1109/SPEC.2016.7846208","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846208","url":null,"abstract":"DC capacitors in power electronic converters are a major constraint on improvement of the power density and the reliability. In this paper, according to the degradation data of tested capacitors, the lifetime model of the component is analyzed at various confidence levels. Then, the mission profile based lifetime expectancy of the individual capacitor and the capacitor bank is estimated in a fuel cell backup power converter operating in both standby mode and operation mode. The lifetime prediction of the capacitor banks at different confidence levels is also obtained.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"247 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116445724","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 : 2016-12-01DOI: 10.1109/SPEC.2016.7846103
S. Kubota
Induction heating (IH) appliances are widely used for industrial appliances and home electronics because IH has a lot of merits. Recently, wireless power transfer attracts attention as a promising industry. As for wireless power transfer, inductance is changed in accordance with power transmission distance or surrounding environment. Similarly as for IH, inductance and resistance as equivalent circuit parameters is changed in accordance with heating temperature. For this reason, a transmission efficiency and a heating efficiency is lowered with changing these parameters. Therefore the power supply for these applications with resonance tracking control is proposed in this study. The feature of this power supply is the ability to track resonance at constant frequency. In this paper, an analytical study of the proposed power supply is performed and the results derived from analysis are presented.
{"title":"Soft switching inverter with resonance tracking control using quasi variable capacitor","authors":"S. Kubota","doi":"10.1109/SPEC.2016.7846103","DOIUrl":"https://doi.org/10.1109/SPEC.2016.7846103","url":null,"abstract":"Induction heating (IH) appliances are widely used for industrial appliances and home electronics because IH has a lot of merits. Recently, wireless power transfer attracts attention as a promising industry. As for wireless power transfer, inductance is changed in accordance with power transmission distance or surrounding environment. Similarly as for IH, inductance and resistance as equivalent circuit parameters is changed in accordance with heating temperature. For this reason, a transmission efficiency and a heating efficiency is lowered with changing these parameters. Therefore the power supply for these applications with resonance tracking control is proposed in this study. The feature of this power supply is the ability to track resonance at constant frequency. In this paper, an analytical study of the proposed power supply is performed and the results derived from analysis are presented.","PeriodicalId":403316,"journal":{"name":"2016 IEEE 2nd Annual Southern Power Electronics Conference (SPEC)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116522998","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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