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
安田 善紀 須原 淳 柳田 靖人 大山 和伸 土屋 高志
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.39, pp.48-54, 2013-03-31 (Released:2015-04-20)
参考文献数
3

EV category of the Student Formula Japan Competition will be an official event in 2013. In order to optimize the regulations of the category, we have developed an EV based on a vehicle driven by an engine for the student formula. At first, our prototype motor was applied to its traction motor and the test run was performed, and we developed an Interior Permanent Magnet Synchronous Motor (IPMSM) suitable for the formula by analyzing the test data. Furthermore, we developed a motor which achieved higher power density and correspondence to the regulation. This paper introduces the developed IPMSM.
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
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.
著者
清水 悠生 森本 茂雄 真田 雅之 井上 征則
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.43, pp.130-137, 2017-03-31 (Released:2018-10-28)
参考文献数
8
被引用文献数
1

Nowadays, interior permanent magnet synchronous motors (IPMSMs), generally driven by PWM inverters, are mainly utilized as the traction motors of eco-friendly vehicles. As a result of the carrier harmonics of the input current by PWM inverters, harmonic losses of IPMSMs become higher than those of IPMSMs with ideal current input. This paper discusses the characteristics of the proposed double-layered IPMSM and the conventional single-layered IPMSM with current inputs where the PWM carrier frequencies were set to 5, 10, and 20 kHz, respectively, which reveals the influence of various carrier frequencies on the performance of IPMSMs.
著者
井本 涼太 茂木 進一 道平 雅一 西田 保幸
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.176-181, 2014-03-31 (Released:2016-04-08)
参考文献数
7
被引用文献数
10 13

A three-phase voltage-fed converter operated by a two-phase PWM scheme offers relatively high ac voltage, low switching times, and low switching losses in comparison to that operated by a three-phase PWM scheme. However, the harmonics involved in the ac-side voltages and currents produced in the two-phase PWM scheme are distributed over a wide frequency range, which can be a significant drawback depending on its applications. Therefore the authors examine the problem using wavelet transform.
著者
河本 啓助 森本 茂雄 武田 洋次
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.2, pp.168-174, 2001-03-01 (Released:2010-03-16)
参考文献数
7

This paper presents a sensorless control of IPMSM using an estimated axis error on the basis of an extended emf. In the sensorless control method using a rotational axis model, the approximated model is generally used, thus some problems exist in the sensorless control at IPMSM with a large saliency ratio. In this paper the use of a rotational axis model using an extended emf can accomplish a sensorless control on the basis of an IPMSM model without any approximation. Moreover to confirm the effectiveness of the proposed method this paper shows simulation results of some kinds of drive situations and IPMSMs with various saliency ratios.