Passenger conveyor device and its control method

Japanese Patent JP6293080

B2

The present invention provides a passenger conveying device and a control method thereof. During the power failure, the power is regenerated by an inverter device to realize the deceleration stop. A control circuit (11) detects the power failure of an alternating-current power supply (6), and then sends out a switching signal to a switching switch (12). In this way, the inverter device (7) is disconnected from a regenerative resistor (13) to be connected to the control circuit (11). After that, the control circuit (11) obtains the inverter load information from the inverter device so as to determine the predetermined deceleration for the regenerative power generated by the inverter device and output the predetermined deceleration to the inverter device. Through the deceleration action corresponding to a deceleration command, the inverter device generates the regenerative power to serve as a control power supply. Therefore, the decelerating and stopping action of a motor (3) is realized.

JP5725209	Power converter and its manufacturing method
WO/2002/103889	METHOD FOR COUPLING INVERTER TO ALTERNATING VOLTAGE
JP6099776	Power converter

Takuya Ichinose
Hideki Kuwamura
Mitsuru Sakagami

JP2015050775A

March 14, 2018

March 13, 2015

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株式会社日立製作所

H02M7/48; B66B25/00; B66B29/00; H02P3/18; H02P27/06

JP2005219914A
JP2004274991A
JP2002200394A
JP2008044681A
JP4359687A
JP2014501210A
JP7252073A

US20130270061

Wilfort International Patent Office

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