Pub Date : 2012-10-01DOI: 10.1109/VPPC.2012.6422602
Da-Eun Jeong, Jae-sub Ko, Jin-Gook Lee, Hak-Gyun Jeong, Dae-kyong Kim, D. Chung
This paper proposes novel MPPT method of photovoltaic system with temperature coefficient. The conventional CV(Constant Voltage) and PO(Perturbation and Observation) methods have the weak problem about the radiation and temperature change. Thus, in this paper, in order to improve this problem, the optimal voltage and current is determined and the MPPT control is performed. The MPPT algorithm proposed in this paper analyzes the performance about radiation and temperature change and proves the validity.
{"title":"MPPT control of photovoltaic system with temperature coefficient","authors":"Da-Eun Jeong, Jae-sub Ko, Jin-Gook Lee, Hak-Gyun Jeong, Dae-kyong Kim, D. Chung","doi":"10.1109/VPPC.2012.6422602","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422602","url":null,"abstract":"This paper proposes novel MPPT method of photovoltaic system with temperature coefficient. The conventional CV(Constant Voltage) and PO(Perturbation and Observation) methods have the weak problem about the radiation and temperature change. Thus, in this paper, in order to improve this problem, the optimal voltage and current is determined and the MPPT control is performed. The MPPT algorithm proposed in this paper analyzes the performance about radiation and temperature change and proves the validity.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123573025","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422707
Hanmin Lee
The ESS can save the all regenerated energy. The ESS can replace the resistor. The ESS save the power cost of vehicle. So, the resistor will disappear in the future. The energy storage system can save energy cost and stabilize the system voltage. We developed dc 750V and dc 1500V system.
{"title":"A study on application of waste energy from electric train","authors":"Hanmin Lee","doi":"10.1109/VPPC.2012.6422707","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422707","url":null,"abstract":"The ESS can save the all regenerated energy. The ESS can replace the resistor. The ESS save the power cost of vehicle. So, the resistor will disappear in the future. The energy storage system can save energy cost and stabilize the system voltage. We developed dc 750V and dc 1500V system.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124991731","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422691
Kyoung-Jun Lee, Dongsul Shin, Jong-Pil Lee, D. Yoo, Han-Kyu Choi, Hee-Je Kim
The paper presents experimental results from the operation of a proto-type green ship in Geoje island, South Korea. After ground testing with a stand-alone PV generation system, this PV system was added to conventional diesel ship. Proto-type green ship is consisted of photovoltaic (PV) generation system, diesel engine, battery energy storage, hybrid control system, stand-alone and grid-connected inverter. The aim of the green ship is not only to minimize the fuel consumption but also to support the power grid as a distributed generation (DG) in the near future.
{"title":"Hybrid photovoltaic/diesel green ship operating in standalone and grid-connected mode in South Korea - Experimental investigation","authors":"Kyoung-Jun Lee, Dongsul Shin, Jong-Pil Lee, D. Yoo, Han-Kyu Choi, Hee-Je Kim","doi":"10.1109/VPPC.2012.6422691","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422691","url":null,"abstract":"The paper presents experimental results from the operation of a proto-type green ship in Geoje island, South Korea. After ground testing with a stand-alone PV generation system, this PV system was added to conventional diesel ship. Proto-type green ship is consisted of photovoltaic (PV) generation system, diesel engine, battery energy storage, hybrid control system, stand-alone and grid-connected inverter. The aim of the green ship is not only to minimize the fuel consumption but also to support the power grid as a distributed generation (DG) in the near future.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121366000","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422704
S. Jang, Jae-Hoon Jeong, Hyung-Il Park, Ji-Hwan Choi, Soyoung Sung
This paper deals with the ellipse permanent magnet machines for the minimization of torque ripple based on electromagnetic field theory. On the basis of a magnetic vector potential and a two dimensional (2-D) polar system, analytical solutions for flux density due to permanent magnet (PM) and current are obtained. In particular, the analytical solutions for mathematical expressions of magnets with different circumferential thicknesses can be solved introducing improved magnetization modeling techniques. The analytical results are validated extensively be nonlinear finite element solutions, a reduction of torque ripple can be achieved.
{"title":"Electromagnetic analysis of high speed brushless DC motor according to PM structure","authors":"S. Jang, Jae-Hoon Jeong, Hyung-Il Park, Ji-Hwan Choi, Soyoung Sung","doi":"10.1109/VPPC.2012.6422704","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422704","url":null,"abstract":"This paper deals with the ellipse permanent magnet machines for the minimization of torque ripple based on electromagnetic field theory. On the basis of a magnetic vector potential and a two dimensional (2-D) polar system, analytical solutions for flux density due to permanent magnet (PM) and current are obtained. In particular, the analytical solutions for mathematical expressions of magnets with different circumferential thicknesses can be solved introducing improved magnetization modeling techniques. The analytical results are validated extensively be nonlinear finite element solutions, a reduction of torque ripple can be achieved.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124591581","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422698
J. Merkisz, J. Pielecha, P. Fuć, P. Lijewski
The paper discusses the possibilities of measurement of the exhaust emissions generated by city buses operating in public transit. The currently used methods of exhaust emission measurement under laboratory conditions on engine test beds do not entirely reflect the varied driving conditions under which the vehicles are operated. The paper presents the results of the in-use exhaust emission measurements performed on city buses using a Portable Emissions Measurement System (PEMS). The paper focuses on the road tests methodology as well as the interpretation of the obtained results.
{"title":"The analysis of the PEMS measurements of the exhaust emissions from city buses using different research procedures","authors":"J. Merkisz, J. Pielecha, P. Fuć, P. Lijewski","doi":"10.1109/VPPC.2012.6422698","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422698","url":null,"abstract":"The paper discusses the possibilities of measurement of the exhaust emissions generated by city buses operating in public transit. The currently used methods of exhaust emission measurement under laboratory conditions on engine test beds do not entirely reflect the varied driving conditions under which the vehicles are operated. The paper presents the results of the in-use exhaust emission measurements performed on city buses using a Portable Emissions Measurement System (PEMS). The paper focuses on the road tests methodology as well as the interpretation of the obtained results.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125414854","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422521
Kyung-tae Kim, Byeong-Woo Kim, J. Hur
This paper proposed modeling for magnetic characteristic analysis of IPM-type BLDC motor of inter turn fault using winding function theory (WFT). Inter-turn fault (ITF) causes significant changes in electric and magnetic characteristic. So many studies on inter-turn fault have been performed by FEM (Finite Element Method) simulation because of non-linear characteristic. However, it is difficult to apply to on-line fault detection system because processing time of FEM is specially very-long. So the winding functions and inductance variation under inter-turn faults are calculated by winding function theory. Also, magnetic characteristic of inter-turn fault is verified by the FEM simulation.
{"title":"Magnetic characteristic analysis for detection of inter-turn fault using winding function theory","authors":"Kyung-tae Kim, Byeong-Woo Kim, J. Hur","doi":"10.1109/VPPC.2012.6422521","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422521","url":null,"abstract":"This paper proposed modeling for magnetic characteristic analysis of IPM-type BLDC motor of inter turn fault using winding function theory (WFT). Inter-turn fault (ITF) causes significant changes in electric and magnetic characteristic. So many studies on inter-turn fault have been performed by FEM (Finite Element Method) simulation because of non-linear characteristic. However, it is difficult to apply to on-line fault detection system because processing time of FEM is specially very-long. So the winding functions and inductance variation under inter-turn faults are calculated by winding function theory. Also, magnetic characteristic of inter-turn fault is verified by the FEM simulation.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128401073","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422720
Cong-Long Nguyen, Hong‐Hee Lee, Sungjin Choi
The input current harmonics of battery chargers affect harmfully on the overall power distribution network. They result in voltage distortion, heating transformers, reducing conduction capacity of cable, and affecting the interrupting capability of circuit breakers. In order to eliminate these problems, this paper presents an effective control scheme to remove input current harmonics of battery charger by controlling the current in phase with fundamental component of the grid voltage. The proposed control scheme not only achieves near-unity input power factor but also eliminates current harmonics in the battery charger regardless of the grid voltage disturbance. To validate performance of the proposed control scheme, both simulation and experiment are carried out.
{"title":"Power factor control scheme for zero current harmonics of battery charger in EVs","authors":"Cong-Long Nguyen, Hong‐Hee Lee, Sungjin Choi","doi":"10.1109/VPPC.2012.6422720","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422720","url":null,"abstract":"The input current harmonics of battery chargers affect harmfully on the overall power distribution network. They result in voltage distortion, heating transformers, reducing conduction capacity of cable, and affecting the interrupting capability of circuit breakers. In order to eliminate these problems, this paper presents an effective control scheme to remove input current harmonics of battery charger by controlling the current in phase with fundamental component of the grid voltage. The proposed control scheme not only achieves near-unity input power factor but also eliminates current harmonics in the battery charger regardless of the grid voltage disturbance. To validate performance of the proposed control scheme, both simulation and experiment are carried out.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128549699","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422607
Chul-ho Jung, Soo-Cheol Shin, Hee-Jun Lee, Tae-Bok Jung, C. Won, Young-Real Kim
In the large system such DC distribution for building, the method that a number of modules converters operation in parallel is commonly used. When parallel operation, circulating current is directly related to the loss of the entire system. Accordingly, each module to share the same current is the most important for the safety of the power system. In this paper, control method for reduction circulating current in parallel operation is proposed. Thus, Response and operation of steady-state with parallel system was verified by simulation and experiment.
{"title":"Control method for reduction circulating current in parallel operation of DC distribution system for building applications","authors":"Chul-ho Jung, Soo-Cheol Shin, Hee-Jun Lee, Tae-Bok Jung, C. Won, Young-Real Kim","doi":"10.1109/VPPC.2012.6422607","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422607","url":null,"abstract":"In the large system such DC distribution for building, the method that a number of modules converters operation in parallel is commonly used. When parallel operation, circulating current is directly related to the loss of the entire system. Accordingly, each module to share the same current is the most important for the safety of the power system. In this paper, control method for reduction circulating current in parallel operation is proposed. Thus, Response and operation of steady-state with parallel system was verified by simulation and experiment.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128567483","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422685
Gyeong-Chan Lee, T. Jung
The Radial Field Permanent Magnet(RFPM) generator has numerous advantages such as high output voltage and high output power, high efficiency. In addition, the manufacturing is easier than AFPM generator. However, the slotted RFPM generator produces the cogging torque. It would increase torque ripple and generate vibration and noise. In this paper, the design analysis of the electromagnetic structure and the cogging torque reduction of RFPM generator for wind turbine is studied. Firstly, the design of the pole-arc ratio to increase the output generated voltage and to reduce the cogging torque is studied. Secondly, the design of the displacement angle of the inner stator and the outer stator to reduce the cogging torque is studied. The design of RFPM generator was calculated by 2D FEM(Finite Element Method).
{"title":"Design study of dual stator Radial Field Permanent Magnet generator for small wind turbine","authors":"Gyeong-Chan Lee, T. Jung","doi":"10.1109/VPPC.2012.6422685","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422685","url":null,"abstract":"The Radial Field Permanent Magnet(RFPM) generator has numerous advantages such as high output voltage and high output power, high efficiency. In addition, the manufacturing is easier than AFPM generator. However, the slotted RFPM generator produces the cogging torque. It would increase torque ripple and generate vibration and noise. In this paper, the design analysis of the electromagnetic structure and the cogging torque reduction of RFPM generator for wind turbine is studied. Firstly, the design of the pole-arc ratio to increase the output generated voltage and to reduce the cogging torque is studied. Secondly, the design of the displacement angle of the inner stator and the outer stator to reduce the cogging torque is studied. The design of RFPM generator was calculated by 2D FEM(Finite Element Method).","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130639004","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 : 2012-10-01DOI: 10.1109/VPPC.2012.6422554
Sung Pil Ha, Jung Hyo Lee, J. Hwang, Jun-Hyuk Choi, C. Won
A pulse width modulation-voltage source inverter (PWM-VSI) outputs distorted voltage that has a bad effect on torque and speed. Also speed range of traction motor is limited on output voltage. In order to solve problem, this paper propose the control method. It can adjust the DC-link voltage of PWM-VSI by using a two phase interleaved bidirectional DC-DC converter. Also the method can response high power of vehicle. By replacing the diode of output with the switch, the system can operate the regenerative mode. According to mode selection, Proposed topology operates buck mode and boost mode, regenerate buck mode. Proposed method is verified by the simulation and experiment result.
{"title":"Two phase interleaved bidirectional DC-DC converter for electric vehicle using variable DC-link voltage","authors":"Sung Pil Ha, Jung Hyo Lee, J. Hwang, Jun-Hyuk Choi, C. Won","doi":"10.1109/VPPC.2012.6422554","DOIUrl":"https://doi.org/10.1109/VPPC.2012.6422554","url":null,"abstract":"A pulse width modulation-voltage source inverter (PWM-VSI) outputs distorted voltage that has a bad effect on torque and speed. Also speed range of traction motor is limited on output voltage. In order to solve problem, this paper propose the control method. It can adjust the DC-link voltage of PWM-VSI by using a two phase interleaved bidirectional DC-DC converter. Also the method can response high power of vehicle. By replacing the diode of output with the switch, the system can operate the regenerative mode. According to mode selection, Proposed topology operates buck mode and boost mode, regenerate buck mode. Proposed method is verified by the simulation and experiment result.","PeriodicalId":341659,"journal":{"name":"2012 IEEE Vehicle Power and Propulsion Conference","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130604139","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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