著者

岩路 善尚

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.141, no.12, pp.NL12_19, 2021-12-01 (Released:2021-12-01)

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This research group focuses on the control algorithm of motor drive systems. This document introduces our research topics and activities.

著者

坂本 潔 岩路 善尚 遠藤 常博

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.124, no.11, pp.1133-1140, 2004 (Released:2005-02-01)

参考文献数

26

被引用文献数

18 31

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A simplified vector control is proposed as a driving method of permanent magnet synchronous motor (PMSM) for electrical household appliances. Control structure is simplified by eliminating the speed regulator and the current regulator from the conventional vector controller. Output voltage references are determined by feedforward-like calculation using motor parameters, rotation speed command, and current references. In the static characteristic, the proposed vector control method is almost equal to the conventional one, because the voltage references are calculated in the vector space. A practical estimate equation of rotor position is proposed, and the phase locked loop control approach is employed to drive PMSM without position and speed sensors. Design method of two control gains is given. Finally, the effectiveness of the proposed control is verified by simulation and experiments.

著者

岩路 善尚 福田 昭治

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.111, no.7, pp.523-530, 1991-07-20 (Released:2008-12-19)

参考文献数

12

被引用文献数

1 4

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This paper describes a PWM pulse pattern optimization method using the carrier frequency modulation (CFM) technique. This new technique is aiming at not only reducing the magnetic acoustic noises of the driven motors but also improving the performance of sinusoidal inverters.The PWM pulse patterns are basically controlled so that the time-integral function of voltage vectors in the space vector notation may draw a circular locus. In addition to this, the carrier frequency, practically the sampling frequency for inverter control, of PWM is also regulated so that a performance index (PI), which represents the degrees of achieving objectives, may be minimized. Here two PIs, one is for minimizing the distortion of output currents and the other is for minimizing the torque ripples of driven motors, are discussed respecively.Finally, CFM is implemented using a single-chip microprocessor, and the experimental results demonstrate the validity of the proposed mehtod.

著者

岩路 善尚 奥山 俊昭 金子 大吾 岡松 茂俊

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.121, no.4, pp.476-483, 2001-04-01 (Released:2008-12-19)

参考文献数

14

被引用文献数

1 3

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High voltage adjustable speed drive systems offer significant advantages in many applications such as a fan, pump, or blower. In these applications, the adjustable speed drive systems achieves a higher level of system efficiency.Usually, low voltage inverters with output transformer were used for a high voltage induction motor drive system. Recently, direct drive inverter system without output transformer has proposed and investigated. This inverter system is composed of single phase unit inverters and outputs multilevel voltages.In this paper, pulse width modulation (PWM) technique suitable for high voltage direct drive inverter systems are discussed. At first, conventional multi-level PWM techniques based on the sub-harmonic method are shown and evaluated using time domain simulation. Next, new PWM method is proposed. This method has advantages that a modulation principle is very simple, distortion of the output voltage is very low, and well balanced switching losses among the unit inverters are achieved. Finally, simulation and experimental result are shown to illustrate the effectiveness of this method.

著者

坂本 潔 岩路 善尚 遠藤 常博

雑誌

電気学会研究会資料. SPC, 半導体電力変換研究会

巻号頁・発行日

vol.2000, no.54, pp.73-77, 2000-11-01

参考文献数

5

被引用文献数

8

著者

中津川 潤之介 岩路 善尚 榎本 裕治

出版者

一般社団法人 電気学会

雑誌

電気学会論文誌D(産業応用部門誌) (ISSN:09136339)

巻号頁・発行日

vol.136, no.4, pp.263-269, 2016-04-01 (Released:2016-04-01)

参考文献数

23

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We have developed novel mathematical models of d-axis and q-axis magnetic fluxes ϕd and ϕq for permanent magnet synchronous motors (PMSMs). The models can be used to approximate magnetic characteristics using simple fractional equations with id and iq as variables. They include eight constants, and some of them represent the degree of magnetic saturation and cross-coupling. However, the magnetic characteristics are varied with the temperature rise in PMSMs, which are dependent on the load torque and motor speed. In this paper, the characteristics of the eight constants that vary with the motor temperature and the residual flux density Br are shown. Further, we propose to extend the mathematical models by considering the temperature and Br variation.

著者

戸張 和明 坂本 潔 岩路 善尚 金子 大吾 上松 初 大久保 智文

出版者

The Institute of Electrical Engineers of Japan

雑誌

電気学会論文誌. D, 産業応用部門誌 = The transactions of the Institute of Electrical Engineers of Japan. D, A publication of Industry Applications Society (ISSN:09136339)

巻号頁・発行日

vol.130, no.5, pp.614-624, 2010-05-01

参考文献数

8

被引用文献数

2 1

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We propose a new beatless control mechanism for permanent-magnet synchronous motor (PMSM) drives. In drive systems, the three-phase voltage source induces a ripple component whose frequency is six times that of the voltage source frequency in the DC voltage. Therefore, if the motor frequency becomes six times the voltage frequency, a beat phenomenon, which causes an increase in the motor current ripple is observed. We analyze the beat phenomenon which causes current ripples and propose a method based on periodic disturbance current regulation, i.e., beatless control. We carry out time-domain simulation and various experiments and demonstrate the effectiveness of the proposed controller.