The Experts below are selected from a list of 1818 Experts worldwide ranked by ideXlab platform
N Matsui - One of the best experts on this subject based on the ideXlab platform.
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position sensorless drive of srm mounted on Hydraulic Pump Unit
Ieej Transactions on Industry Applications, 2003Co-Authors: Takashi Kosaka, Yoshinari Nabeya, Kazunobu Ohyama, N MatsuiAbstract:Recently, Switched Reluctance Motors (SRM)have been applied to several industrial products such as fans, blowers, Pumps and so forth because of their simple construction and relatively high e ciency.As one of the examples, Daikin Industries Ltd.has been successful in manufacturing Hydraulic Pump Unit using 2.2kW three-phase SRM with shaft mounted position sensor for its control. This paper presents the position sensorless drive o the SRM for the purposes of reducing cost and down sizing of the Hydraulic Pump Unit system.The controller, intentionally designed for this special application, realizes the following characteristics;the maximum and minimum speeds are 5000 and 300rpm, the speed response between the maximum and minimum speeds is within 100msec and the starting torque is less than 20% of the rated torque.The experimental studies using the Hydraulic Pump Unit show that the proposed sensorless control scheme satis es the requirements for this application.
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optimal switched reluctance motor drive for Hydraulic Pump Unit
IEEE Industry Applications Society Annual Meeting, 2000Co-Authors: H Yamai, Kazunobu Ohyama, M Kaneda, Yoji Takeda, N MatsuiAbstract:This paper presents a newly developed high-efficiency and low-noise 2.2 kW switched reluctance motor (SRM) which is designed to be most suitable for a Hydraulic Pump Unit. By optimizing motor drive parameters such as the conduction angle and width of the exciting wave, and exiting mode, the motor efficiency is improved by 6%. Based on the evaluation factor of the acoustic noise, a 12-8 type SRM is selected to reduce the noise. By applying this SRM drive to the Hydraulic Pump Unit, approximately 5dBA acoustic noise level reduction and more than 50% reduction of the electric power consumption of the system is obtained comparing with the conventional Unit.
Kazunobu Ohyama - One of the best experts on this subject based on the ideXlab platform.
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position sensorless drive of srm mounted on Hydraulic Pump Unit
Ieej Transactions on Industry Applications, 2003Co-Authors: Takashi Kosaka, Yoshinari Nabeya, Kazunobu Ohyama, N MatsuiAbstract:Recently, Switched Reluctance Motors (SRM)have been applied to several industrial products such as fans, blowers, Pumps and so forth because of their simple construction and relatively high e ciency.As one of the examples, Daikin Industries Ltd.has been successful in manufacturing Hydraulic Pump Unit using 2.2kW three-phase SRM with shaft mounted position sensor for its control. This paper presents the position sensorless drive o the SRM for the purposes of reducing cost and down sizing of the Hydraulic Pump Unit system.The controller, intentionally designed for this special application, realizes the following characteristics;the maximum and minimum speeds are 5000 and 300rpm, the speed response between the maximum and minimum speeds is within 100msec and the starting torque is less than 20% of the rated torque.The experimental studies using the Hydraulic Pump Unit show that the proposed sensorless control scheme satis es the requirements for this application.
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optimal switched reluctance motor drive for Hydraulic Pump Unit
IEEE Industry Applications Society Annual Meeting, 2000Co-Authors: H Yamai, Kazunobu Ohyama, M Kaneda, Yoji Takeda, N MatsuiAbstract:This paper presents a newly developed high-efficiency and low-noise 2.2 kW switched reluctance motor (SRM) which is designed to be most suitable for a Hydraulic Pump Unit. By optimizing motor drive parameters such as the conduction angle and width of the exciting wave, and exiting mode, the motor efficiency is improved by 6%. Based on the evaluation factor of the acoustic noise, a 12-8 type SRM is selected to reduce the noise. By applying this SRM drive to the Hydraulic Pump Unit, approximately 5dBA acoustic noise level reduction and more than 50% reduction of the electric power consumption of the system is obtained comparing with the conventional Unit.
Becher Dirk - One of the best experts on this subject based on the ideXlab platform.
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Electrohydrostatic actuation system – an (almost) complete system view
Sachsische Landesbibliothek Staats- und Universitatsbibliothek Dresden, 2020Co-Authors: Becher DirkAbstract:Electro-hydrostatic Actuation Systems (EAS) successfully combine the advantages of electro-mechanical actuation - such as high-energy efficiency and low noise emission - with the benefits of electro-Hydraulic technology –which include robustness and the precise handling of large forces. This paper defines keywords like EAS and Electro-Hydraulic Pump Unit (EPU), and provides a comparison of the two technologies. Given the wide range of EAS technology topics, it is only possible to briefly introduce and discuss these in this paper. This technology has reached a level that renders it a strong mechanism for machine manufacturers to support existing and future motion control requirements
豪克 卡斯滕斯 - One of the best experts on this subject based on the ideXlab platform.
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Hydraulic structure or the wind turbine generator and a current generator Hydraulic Pump installation method
2010Co-Authors: 阿拉斯代尔 罗伯逊, 乌韦 施泰因, 豪克 卡斯滕斯Abstract:Object of the present invention is to provide a Hydraulic Pump of simple structure is mounted on a spindle, and a method of installing a Pump can be performed in a simplified manner is improved. By making the Hydraulic Pump is fitted to an outer peripheral side of the cylindrical member 46 of the cylindrical member (76) on the outer periphery of the spindle 12 and the arrangement 46 as a whole, the Hydraulic Pump Unit 10 is formed. Hydraulic Pump 76 comprises a cam ring mounted on the outer periphery 52 of the cylindrical member 46, the Pump bearing 54, the Pump casing 34, accommodated in the Pump housing 34 and is driven by the cam ring 58 and a plurality of pistons in a radial direction guiding the plurality of pistons and a plurality of cylinders 60 arranged in the circumferential direction, and the Hydraulic Pump Unit 10 is configured such that the Pump Unit 10 to the spindle 12 may be a cylindrical member 46 may be inserted through the fixing.
H Yamai - One of the best experts on this subject based on the ideXlab platform.
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optimal switched reluctance motor drive for Hydraulic Pump Unit
IEEE Industry Applications Society Annual Meeting, 2000Co-Authors: H Yamai, Kazunobu Ohyama, M Kaneda, Yoji Takeda, N MatsuiAbstract:This paper presents a newly developed high-efficiency and low-noise 2.2 kW switched reluctance motor (SRM) which is designed to be most suitable for a Hydraulic Pump Unit. By optimizing motor drive parameters such as the conduction angle and width of the exciting wave, and exiting mode, the motor efficiency is improved by 6%. Based on the evaluation factor of the acoustic noise, a 12-8 type SRM is selected to reduce the noise. By applying this SRM drive to the Hydraulic Pump Unit, approximately 5dBA acoustic noise level reduction and more than 50% reduction of the electric power consumption of the system is obtained comparing with the conventional Unit.
