Title:
電動機の速度制御装置
Document Type and Number:
Japanese Patent JP7450128
Kind Code:
B2
Abstract:
According to an embodiment of the present invention, provided is a speed control device for an electric motor, said device comprising: a first computation means for supplying a first speed reference to a first variable speed control device that controls the speed of a first electric motor which drives a table roll of a first transport table; and a second computation means. The second computation means is for: supplying a second speed reference to a second variable speed control device that controls the speed of a second electric motor which drives a table roll of a second transport table disposed downstream of the first transport table; calculating the transport speed of a transported rolled material as a target transport speed; calculating a fastest acceleration/deceleration time on the basis of actual speed data of the second electric motor, the target transport speed, and a pre-set electric motor parameter; generating a speed reference pattern on the basis of the actual speed data, the target transport speed, and the fastest acceleration/deceleration speed time; and supplying the generated speed reference pattern to the second variable speed control device as the second speed reference.
Inventors:
Ryo Fujita
Junki Osawa
Junki Osawa
Application Number:
JP2023537826A
Publication Date:
March 14, 2024
Filing Date:
July 28, 2021
Export Citation:
Assignee:
Toshiba Mitsubishi Electric Industrial Systems Co., Ltd.
International Classes:
B21B39/12; H02P5/46
Domestic Patent References:
| JP62231318A | ||||
| JP60111712A |
Attorney, Agent or Firm:
Masahiko Hyugaji
Junichi Kozaki
Hiroshi Ichikawa
Takato Uchida
Junichi Kozaki
Hiroshi Ichikawa
Takato Uchida