Daikin Industries, Ltd.

Shuuhei Yamaguchi

Kiichirou Satou

Hisaaki Takaoka

Naoki Nakatani

Kouji Uchida

Susumu Matsui

In this container refrigerator, the permissible equivalent negative-phase-sequence current of a generator to be connected is calculated in Step Sbased on its capacitance. Next, in Step S, the power consumption of an inverter device to generate the equivalent negative-phase-sequence current is calculated. Then, in Step S, the equivalent negative-phase-sequence current generated by the container refrigerator is calculated based on the power consumption of this inverter device. Thereafter, in Step S, Iis compared to I. If I&#x3e;Iis satisfied, Iis restricted until I&#x2266;Iis met by lowering the output frequency of the inverter device repeatedly in multiple stages. Consequently, even if the generator connected has small capacitance, the operation may be continued at a number of rotations appropriate for that small capacitance without causing the generator to overheat or be burned out.

Refrigerating device for containers

A refrigerating driving control section controls the driving of the refrigerating apparatus. A control constant storage section stores data in which information indicating the object to be refrigerated by the refrigerating apparatus and control constants that the refrigerating driving control section adopts for the object are associated together. An operation of operation section specifies the object. From the control constant storage section, the refrigerating driving control section reads the control constants corresponding to the object specified by the operation section, and the driving of the refrigerating apparatus is controlled on the basis of the read control constants.

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Osaka, Japan

Shuuhei Yamaguchi