Mitsubishi Heavy Industries Thermal Systems, Ltd.

Mitsubishi Power, Ltd.

Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Machinery Systems, Ltd.

Tokyo Electric Power Company Holdings, Inc.

Yusuke Hazui

Koki Tateishi

Satoshi Nikaido

Masumi Nomura

Toru Tanaka

Akihisa Endo

Yutaka Takenaka

Masahiro Kimura

Satoru Tanaka

Minoru Matsuo

Takaharu Hiroe

Hiroshi Ishibuchi

Yusuke Sano

Toshiaki Ouchi

Kazuhiko Kamo

Akira Ogino

Naoki Suda

Noriyasu Maehara

Hirotaka Hanasaki

Yasushi Nishijima

A welding control device includes an actual position determination part configured to determine an actual position of the position control target on the basis of a weld characteristic amount detected from a captured image captured so as to include at least the position control target, the welding characteristic amount including at least one of a wire position of the weld wire or an electrode position of the electrode; a target position determination part configured to determine a target position being a target of the actual position corresponding to a weld condition for welding the weld target; and a position control part configured to execute a position control of the position control target to bring the actual position to the target position.

Welding control device, welding control method, and welding control program

The corrugated cardboard sheet manufacturing system including a production state information acquisition device; a control value information acquisition device for acquiring control value information of a control element of a corrugated cardboard sheet manufacturing apparatus exerting an influence on the warp of a corrugated cardboard sheet; a warp information acquisition device for acquiring information of a warp amount of the corrugated cardboard sheet; a storage device for storing a performance data set including at least production state information, the control value information, and the warp information; a pre-control table storing a standard control value of the control element set in accordance with a production state; a correction table for correcting the standard control value to set an initial control value; an update device for updating the correction table by reflecting the performance data set; and control device for performing feedforward control of the control element using the initial control value.

Corrugated cardboard sheet manufacturing system

A control device for a refrigerator system for cooling a load by using a plurality of refrigerators, said control device comprising a unit to control the number of operating units that changes the number of operating refrigerators according to the load rate, and a cold water temperature acquisition unit that acquires, via a temperature sensor, the temperature of cold water affected by the refrigerators. After a prescribed standby time from when the number of operating refrigerators was changed has elapsed, the unit to control the number of operating units changes the number of operating units and reduces the prescribed standby time when at least one of the cold-water temperature and the rate of change in the cold-water temperature satisfies a prescribed condition.

Controller and method for reducing standby time when controlling the number of chillers to be operated

A superordinate controlling device for a heat source system () including a plurality of heat sources, the superordinate controlling device being applied to the heat source system () and controlling heat-pump type chillers () and () and absorption-type chillers () and () in such a manner that a heat transfer medium leaving temperature that is the temperature of a heat transfer medium supplied to an external load () is equal to a setting temperature. The heat-pump type chillers () and () each have a higher Coefficient of Performance (COP) than that of each of the absorption-type chillers () and (). The superordinate controlling device includes a heat transfer medium leaving temperature changing means for carrying out heat transfer medium leaving temperature control, by changing the heat transfer medium leaving temperatures of the heat-pump type chillers () and (), when a post-change prediction value of each of the absorption-type chiller () and () predicted based on a supposition that the heat transfer medium leaving temperatures of the heat-pump type chillers () and () are changed exceeds a second underload stop threshold value at which the corresponding one of the absorption-type chiller () and () would have an underload stop.

Heat source system controlling device, heat source system, heat source system controlling method, and heat source system controlling program

Provided is a refrigerator system with which refrigerators can be operated efficiently. This refrigerator system has: an upstream refrigerator having a first compressor that compresses a refrigerant, a first condenser that condenses the refrigerant compressed by the first compressor, and a first evaporator that evaporates the refrigerant condensed by the first condenser and cools cold water; a downstream refrigerator having a second compressor that compresses a refrigerant, a second condenser that condenses the refrigerant compressed by the second compressor, and a second evaporator that evaporates the refrigerant condensed by the second condenser and cools the cold water that has passed through the first evaporator; and a higher-level control device that controls the operation of the upstream refrigerator and the downstream refrigerator. The first compressor is a variable-speed device, and the second compressor is a constant-speed device.

Refrigerator system

A planning device according to the present invention includes a remaining life specifying unit that specifies a remaining life of a component for a turbine. On the basis of the specified remaining life, a usage plan generating unit generates a usage plan that indicates the timing at which the component is to be incorporated into the turbine, such that the remaining life of the component becomes equal to or less than an allowable error value at a predetermined timing.

Turbine system with planning device generating usage plan of components, and planning method

A turbine analysis device includes a state quantity acquiring unit configured to acquire a state quantity of a turbine, the state quantity including at least a temperature of the turbine. A load specifying unit is configured to calculate a history of a load of the turbine, based on the state quantity. A load and time calculating unit is configured to derive a relationship between the load of the turbine and an operable time when the turbine is operated at the load, based on a designed service life of the turbine and the history of the load that has been calculated by the load specifying unit.

Turbine analysis device, turbine analysis method, and program

Growing community of inventors

Tokyo, Japan

Yusuke Hazui