著者
佐々木 敏弘 崎山 一幸 弘田 泉生 藤田 篤志 山下 秀和 大森 英樹
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス研究会論文誌 (ISSN:09167269)
巻号頁・発行日
vol.24, no.1, pp.27-34, 1998-10-01 (Released:2010-03-16)
参考文献数
2

Simulation technique is quite effective for the most optimized design of an induction-heated(IH) cooking appliance in which both electromagnetic field and thermal flow require to be controled. We developed the system of nonliner analysis for electromagnetic field and thermalfluid by finite element method. By this system it is possible to simulate the behavior of electromagnetic field which causes induced currents and the behavior of thermal fluid simultaneously. This paper presents the results of performance evaluation for the new IH rice cooker as one of the applications of this system.
著者
塚本 幸辰
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス研究会論文誌 (ISSN:09167269)
巻号頁・発行日
vol.24, no.1, pp.2-7, 1998-10-01 (Released:2010-03-16)
参考文献数
4

The decentralization might be the mega trend toward the new social system for the next century. Especially, reorganization of the electricity business, first initiated in the UK 1989, has acceleratedly unfolded globally and trust into the stage of retailing competition in the UK and the US. In this paper, decentralization of electricity business around the world are surveyed. Further, rule-making among market players and technical requirements at open electricity market are touched on.
著者
橋本 隆輝
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス研究会論文誌 (ISSN:09167269)
巻号頁・発行日
vol.25, no.1, pp.9-14, 1999-10-01 (Released:2010-03-16)
参考文献数
6

Kii Channel HVDC Link, the ratings of which are 2800MW, 500kV, 2800A in final stage, is constructing to interconnect Sikoku and Kansai electric power systems.This paper describes the planning of Kii Cannel HVDC Link and new technologies as follows.·8kV-3500A light triggered thyristors and compact 6tired quadruple thyristor valves.·500kV DC SF6 gas insulated switchgears.·Continuous DC operation during AC system faults.
著者
矢田 智春 山田 洋明 花本 剛士
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス学会誌 (ISSN:13488538)
巻号頁・発行日
vol.40, pp.168-175, 2014-03-31 (Released:2016-04-08)
参考文献数
8

This paper proposes a novel co-operational control method of LED driver, consisting of voltage and current sourced flyback converters. In the proposed method, both the flyback converters are controlled by the LED reference current to obtain wide range variable light control from 10 % to 100 %. Digital computer simulation is implemented to confirm the validity of the proposed method and demonstrate that the minimum on time of the MOSFET is longer than 1 μs even under the operation of 10 % of the LED rated current.
著者
浦山 大 平地 克也
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス学会誌 (ISSN:13488538)
巻号頁・発行日
vol.41, pp.25-33, 2015-03-31 (Released:2016-08-03)
参考文献数
6

The switching of LLC converter becomes hard switching at the time of overload. In this study, we elucidated the mechanism of hard switching and the current path. The reason of hard switching is the commutation of magnetizing current to the secondary side. It is possible to make a judgement whether overload or not from the voltage value at the end of resonance. Voltage value can be obtained from the circuit constants. In this way, it becomes possible to judge the success or failure of soft switching from the circuit constants.
著者
渡辺 博巳
出版者
パワーエレクトロニクス学会
雑誌
パワー・エレクトロニクス研究会論文誌 (ISSN:09167269)
巻号頁・発行日
vol.20, no.1, pp.136-143, 1994-10-13 (Released:2010-03-16)
参考文献数
20

An inverter-fed squirrel cage rotor three phase induction motor with a speed sensor is used in many industrial applications as actuating motors of variable speed servo-systems. However, speed sensors cause problems in the system, reduce the reliability of the system, and increase the cost of the system. In this paper, many methods which determine the rotating speed of these induction motors by using the motor parameters, the instantaneous values of phase voltages and phase currents sensing are explained. And the point at issue of the each sensorless systems are summarized put in order.
著者
北野 淳一
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス研究会論文誌 (ISSN:09167269)
巻号頁・発行日
vol.26, no.1, pp.14-17, 2000-10-01 (Released:2010-03-16)
参考文献数
30

The first three-years test schedule in the Yamanashi Maglev Test Line has finished with satisfactory results at the end of March 2000. As is represented by the high speed runs at 500km/h, the test results proved the superiority of the superconducting Maglev system. This paper introduces the LSM drive system in the Yamanashi Maglev Test Line as an application of the Power Electronics Technologies.
著者
中原 裕治
出版者
パワーエレクトロニクス学会
雑誌
パワーエレクトロニクス研究会論文誌 (ISSN:09167269)
巻号頁・発行日
vol.28, pp.2-7, 2003-04-28 (Released:2010-03-16)
参考文献数
11

This paper presents the motor manufacturing technology using dividing stator cores. The novel manufacturing technology called Poki-Poki motor has been developed from 1993, and applied to various motors used in such products as information devices, industrial equipments, electrical household appliances, motor vehicles and elevators, etc.. Poki-Poki motor can provides not only high productivity but also light and compact devices, saving energy, high efficiency.