Title:
Turbine type flow control device
Document Type and Number:
Japanese Patent JP6277152
Kind Code:
B2
Abstract:
A power generating portion formed of a rotor and a stator is provided. The rotor is formed of a ring incorporating a permanent magnet and an impeller. The rotor is regarded as a turbine. An actual flow rate of fluid flowing in a flow path is estimated from a present angular velocity of the turbine and a present torque of the power generating portion, a torque of the power generating portion in which the estimated actual flow rate corresponds to a setting flow rate is calculated and the torque of the power generating portion is controlled based on the calculated torque and a magnetic pole position of the turbine. The magnetic pole position of the turbine is estimated based on a present phase voltage value and a present phase current value of the power generating portion and a present winding temperature of the power generating portion.
Inventors:
Hiroaki Narita
Ryo Saruwatari
Ryo Saruwatari
Application Number:
JP2015073628A
Publication Date:
February 07, 2018
Filing Date:
March 31, 2015
Export Citation:
Assignee:
Azbil Co., Ltd.
International Classes:
H02P9/04; F03B15/16; F24F11/70
Domestic Patent References:
| JP200586947A | ||||
| JP2003209998A | ||||
| JP2002199776A | ||||
| JP2015096791A |
Foreign References:
| WO2006066347A1 |
Attorney, Agent or Firm:
Masaki Yamakawa
Shigeki Yamakawa
Shigeki Yamakawa
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