Title:
【発明の名称】電磁ポンプ制御装置
Document Type and Number:
Japanese Patent JP2664778
Kind Code:
B2
Abstract:
PURPOSE:To improve power factor and to obtain flow cost down characteristics by providing the electromagnetic pump control device with a synchronizing machine in parallel with an electromagnetic pump, and at the time of generating abnormality, supplying an excited current to be changed by a cause-sorted program. CONSTITUTION:At the normal operation, a variable voltage/variable frequency power supply device 9 receives a flow rate command signal 10 and applies an adjusting current to the electromagnetic pump 1 and the synchronizing machine 3. The machine 3 is overexcited based upon a function fn selected by an excited current controller 7 to compenstate the delay current of the pump 1. At the time of generating an accident such as a failure in the insertion of a control rod, an ATWS signal 16 is outputted and the controller 7 selects a function f2, so that an excited current with a slow change ratio is applied to the pump 1 and a slow flow cost down characteristic is applied to a cooling material circulation system. Consequently, the power factor of the electromag netic pump 1 is improved and the flow cost down characteristic optimum to the cause of the abnormality can be applied.
Inventors:
Jun Ito
Application Number:
JP20953489A
Publication Date:
October 22, 1997
Filing Date:
August 15, 1989
Export Citation:
Assignee:
Toshiba Corporation
International Classes:
G21C15/247; G21C15/18; G21D3/04; H02K44/02; (IPC1-7): G21C15/247; G21C15/18; G21D3/04; H02K44/02
Domestic Patent References:
| JP2254375A | ||||
| JP63302394A | ||||
| JP6279397A | ||||
| JP5335894A | ||||
| JP5279187A | ||||
| JP57171103U |
Attorney, Agent or Firm:
Hisano Hatano (1 person outside)