Alternating current rotating machine control device
AssigneeFuji Electric Co., Ltd.
InventorNobuo Itoigawa
Life of this patent
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Abstract
An alternating current rotating machine control device that shares information among power conversion devices and instruments. A power conversion system has a a top level control device, a master station, multiple power conversion devices, instruments (such as a temperature sensor and a pressure sensor), and the like. The top level control device is connected to two of the power conversion devices by a first communication line. These power conversion devices two or more communication functions, and are connected to a remaining power conversion device, a temperature sensor, and a pressure sensor by a second communication line.
Claims8
An alternating current rotating machine control device that communicates between a plurality of power conversion devices and information instruments, the power conversion devices driving alternating current rotating machines at a predetermined speed, the alternating current rotating machine control device comprising:
- a top level control device that issues commands to the power conversion devices and monitors the power conversion devices and the information instruments;
- a first communication line that connects the top level control device and a master station among the power conversion devices, and transmits and receives a signal between the top level control device and the master station;
- and
- a second communication line that connects the plurality of power conversion devices to each other, and connects the plurality of power conversion devices to the information instruments.
An alternating current rotating machine control device communicates among a plurality of power conversion devices, each having a different function, that drive alternating current rotating machines at a predetermined speed, the alternating current rotating machine control device by comprising:
- a top level control device that issues commands to, and monitors, the power conversion devices;
- a first communication line that connects the top level control device and a master station among the power conversion devices, and transmits and receives a signal between the top level control device and the master station;
- and
- a second communication line that connects the plurality of power conversion devices to each other.
An alternating current rotating machine control device that communicates between a plurality of power conversion devices and information instruments, the power conversion devices driving alternating current rotating machines at a predetermined speed, the alternating current rotating machine control device comprising:
- a communication line that connects the plurality of power conversion devices to each other, and connects the plurality of power conversion devices to the information instruments, wherein
- one of the power conversion devices is a master station.
An alternating current rotating machine control device that communicates among a plurality of power conversion devices, each having a different function, that drive alternating current rotating machines at a predetermined speed, the alternating current rotating machine control device comprising:
- a communication line that connects the plurality of power conversion devices to each other, wherein
- one of the power conversion devices is a master station.
Dependencies are inferred from the claim text.