Abstract: An object of the present invention is to provide a gas turbine power generator capable of increasing the power generation efficiency in partial load operation and decreasing a variation in the number of rotations caused by a variation in power generation load. The gas turbine power generator comprises a compressor (2) for compressing air, a combustor (5) for burning the compressed air and fuel, a turbine (6) driven by combustion gas produced in the combustor and driving the compressor (2) and a generator (7), a regenerative heat exchanger (4) for exchanging heat between exhaust gas from the turbine and the compressed air led into the combustor, an intake air sprayer (1), and a humidifier (3). Intake air flown into the regenerative heat exchanger (4) is humidified and cooled by the intake air sprayer (1) and the humidifier (3).

Abstract: A packet communication apparatus capable of performing packet conversion at high speed for packet transfer or packet transmission/reception has: a packet conversion unit for performing packet conversion for a reception packet received at a plurality of communication units and for a transmission packet to be transmitted from the plurality of communication units; and a transfer control unit for outputting, when the reception packet received by the communication unit is judged as a the transfer packet, the reception packet to a transfer buffer, for outputting the transmission packet to the communication unit corresponding to the communication object at a destination of the transmission packet generated by a packet generating and processing unit, and for outputting the transfer packet to the communication unit corresponding to the communication object at a destination of the transfer packet stored in the transfer buffer.

Abstract: A combustion turbine power generating system includes an AC power generator, a combustion turbine that drives the AC power generator, a first converter that can make conversion between AC current and DC current and having an AC side connected to the AC power generator, a second converter that can make conversion between AC current and DC current and having a DC side connected to a DC output side of the first converter, a smoothing condenser connected between the first and second converters, a generator-speed control unit that controls the first converter and a DC voltage control unit that controls a DC-side voltage of the second converter, thereby the generator-speed control unit controls the first converter on the basis of the number of revolution command value.

Abstract: A combustion turbine power generating system and method in which the system includes an AC power generator, a combustion turbine that drives the AC power generator, a first converter enabling conversion between AC current and DC current and having an AC side connected to the AC power generator, a second converter enabling conversion between AC current and DC current and having a DC side connected to a DC output side of the first converter, a smoothing condenser connected between the first and second converters, a generator-speed control unit that controls the first converter and a DC voltage control unit that controls a DC-side voltage of the second converter. The generator-speed control unit controls the first converter on the basis of a number of revolution command value.

Abstract: A combustion turbine power generating system includes an AC power generator, a combustion turbine that drives the AC power generator, a first converter that can make conversion between AC current and DC current and having an AC side connected to the AC power generator, a second converter that can make conversion between AC current and DC current and having a DC side connected to a DC output side of the first converter, a smoothing condenser connected between the first and second converters, a generator-speed control unit that controls the first converter and a DC voltage control unit that controls a DC-side voltage of the second converter, thereby the generator-speed control unit controls the first converter on the basis of the number of revolution command value.

Abstract: The present invention relates to a software module, and, especially, relates to a software module for integration having severe restriction on the available memory amount and the real-time operation, and provides a software module for integration having increased inheritance in software. This is a software module for integration, integrated as a software module within a device to control the device. The software module has a public module for updating a public data value, an intermediate module for converting the data value in a predetermined data format updated in the public module into a data value in a predetermined data format adaptable to a referencing side, and a referencing module for referencing the data value in a predetermined data format converted by the intermediate module. The publication and referencing process can be implemented among the modules.

Abstract: A transmit packet generated by a CPU 1 is held in a buffer 100a (100b). From among packets received from Ethernet 820a (820b), a packet, a destination of which is a communication device 800, is held in the buffer 100a (100b). A packet which should be transmitted is transmitted from a transfer judging circuit 200 to Ethernet 820a or 820b through a MAC unit 300a or 300b. If a transfer judging circuit 200 judges a packet from the Ethernet 820a to be a packet, a destination of which is another communication device, with reference to a destination MAC address, this packet is transferred to the Ethernet 820b through MAC 300b. If a usage rate of a transferring FIFO buffer 130a (130b) exceeds a threshold value in the process of transmitting a packet held in a transmitting FIFO buffer 120a (130b) on a priority basis, the priority order of a transfer packet is made higher than that of a transmit packet so that the transfer packet is transferred to the Ethernet 820a or 820b in preference to the transmit packet.

Abstract: This invention is to provide a transforming system capable of satisfactorily protecting the equipment of a substation even if a aerial electric power lines is struck directly by an intense electric shock of a large energy, such as an electric shock of a waveform similar to that of a thunderbolt stroke having a long duration of wave tail. So, this invention, a transforming system comprises, a lightning arrester, a ground fault device installed near a service entrance through which the power lines are led in, a voltammeter placed on the gas-insulated switchgear, and a control device receiving a signal from the voltammeter and providing a signal for controlling the grounding device. And when detecting of said thunderbolt arising in said aerial electric power line, a control device which order said ground fault device to make the ground fault condition.

Abstract: The present invention was accomplished in order to provide a control system which enables a considerable decrease in electric power consumption of backup power, leading to effective prevention of a dead battery, while data in each control unit which need be maintained even after power is turned off is properly maintained, wherein an ECU has a first transmitting means to transmit data which need be maintained to an ECU for storage when a change of an IGSW connected to a battery to the off position is detected, and a power supply cutoff means to cut off the power supply to the other ECUs after the completion of the transmission of data to the ECU for storage by the first transmitting means, while the ECU for storage has a first storage controlling means to store the data transmitted from the other ECUs in RAM, and a power switching means to detect the change of the IGSW to the off position and switch the power of the ECU for storage to the backup power.

Abstract: In a gas turbine system having first power converter converting power system N AC voltage to DC voltage, second power converter converting the DC voltage into AC voltage, generator connected to second power converter's AC output and rotated by turbine and turbine controller outputting a revolution speed command value omg* according to a fuel flow rate of the turbine, a detector for detects a revolution speed omg of the generator, another detector detects Vdc of the first converter, a speed regulator generats a DC voltage command value according to a difference between omg and omg*, a switchover unit selects either a preset DC voltage command value Vref or the DC voltage command value according to the revolution speed omg and a voltage regulator and a controller control first power converter conversion output according to a control signal for making Vdc coincide with Vdc*.

Abstract: A heat and electric power supply system which comprises a regenerative gas turbine and an adsorption refrigerator recovering exhaust heat of exhaust gas from the gas turbine is provided with an inlet air cooling equipment including a spray device for spraying cold water form the adsorption refrigerator into an air-intake port of the regenerative gas turbine and a humidifier effecting humidification by hot water injection from the refirigerator into a compressor delivery port of the regenerative gas turbine. The cooling by cold water and humidification by hot water injection are effected according to operational conditions.

Abstract: A heat and electric power supply system includes a regenerative gas turbine and an adsorption refrigerator recovering exhaust heat of exhaust gas from the gas turbine and is provided with inlet air cooling equipment including a spray device for spraying cold water from the adsorption refrigerator into an air-intake port of the regenerative gas turbine and a humidifier effecting humidification by hot water injection from the refrigerator into a compressor delivery port of the regenerative gas turbine. The cooling by cold water and humidification by hot water injection are effected according to operational conditions.

Abstract: To realize the multinational energy and power interchange, understanding the characteristics and differences of energy and power system of respective countries, electric power facilities of respective countries must be totally operated thus providing economic effects such as lowering of energy charge and the stable power supply. To this end, the respective power systems of many countries and regions such as North America, Russia, China, South East Asia, Australia, South America and the like belonging to the Asian-Pacific rim which have characteristics and difference are connected by direct current interconnecting facilities or alternating power transmission facilities thus ensuring the balance of power supply and enabling the total or partial operation of the entire system.

Abstract: A controller to which a plurality of apparatus can be connected has an apparatus discriminating unit for discriminating a type and/or the number of the apparatus connected to the controller. The controller further has an application discriminating unit for discriminating, based on the type and/or the number of the apparatuses discriminated by the apparatus discriminating unit, an application corresponding to the type and/or the number of the apparatuses.

Abstract: To realize the multinational energy and power interchange, understanding the characteristics and differences of energy and power system of respective countries, electric power facilities of respective countries must be totally operated thus providing economic effects such as lowering of energy charge and the stable power supply. To this end, the respective power systems of many countries and regions such as North America, Russia, China, South East Asia, Australia, South America and the like belonging to the Asian-Pacific rim which have characteristics and difference are connected by direct current interconnecting facilities or alternating power transmission facilities thus ensuring the balance of power supply and enabling the total or partial operation of the entire system.

Abstract: A focus detecting device for performing focus detection of passive type using phase-difference detection includes a sensor composed of a plurality of pixels which are paired, and a judgment circuit for judging whether a target image for focus detection is a thin line close to a pixel pitch of the sensor, on the basis of a correlation varying amount of two images formed divisionally on the sensor and an output difference of adjacent pixels of each of the two images, so that it is possible to cope with the thin-line image.

Abstract: A heat and electric power supply system which comprises a regenerative gas turbine and an adsorption refrigerator recovering exhaust heat of exhaust gas from the gas turbine is provided with an inlet air cooling equipment including a spray device for spraying cold water form the adsorption refrigerator into an air-intake port of the regenerative gas turbine and a humidifier effecting humidification by hot water injection from the refirigerator into a compressor delivery port of the regenerative gas turbine. The cooling by cold water and humidification by hot water injection are effected according to operational conditions.

Abstract: The system includes optical bus-bridging devices for observing the modes of said electric buses and the modes of said optical fibers while said electric buses have not been driven (OFF mode), so that the modes of the two electric buses connected through optical fibers are brought into agreement and that the buses can be simultaneously driven by a plurality of nodes. While one or both of said electric buses have been driven (ON mode) by the nodes connected thereto, an optical output has been continuously produced from the buses that are being driven to said optical fibers, and while light has been inputted from said optical fibers, the modes of said buses are not observed, but an electric output is produced to the electric bus of the side to which light is inputted to drive the bus. The optical bus-bridging device changes the mode of the electric bus when the optical fiber does not change within a predetermined period of time after the optical bus-bridging device has outputted a signal to the optical fiber.

Abstract: To realize the multinational energy and power interchange, understanding the characteristics and differences of energy and power system of respective countries, electric power facilities of respective countries must be totally operated thus providing economic effects such as lowering of energy charge and the stable power supply. To this end, the respective power systems of many countries and regions such as North America, Russia, China, South East Asia, Australia, South America and the like belonging to the Asian-Pacific rim which have characteristics and difference are connected by direct current interconnecting facilities or alternating power transmission facilities thus ensuring the balance of power supply and enabling the total or partial operation of the entire system.

Abstract: The system includes optical bus-bridging devices for observing the modes of said electric buses and the modes of said optical fibers while said electric buses have not been driven (OFF mode), so that the modes of the two electric buses connected through optical fibers are brought into agreement and that the buses can be simultaneously driven by a plurality of nodes. While one or both of said electric buses have been driven (ON mode) by the nodes connected thereto, an optical output has been continuously produced from the buses that are being driven to said optical fibers, and while light has been inputted from said optical fibers, the modes of said buses are not observed, but an electric output is produced to the electric bus of the side to which light is inputted to drive the bus. The optical bus-bridging device changes the mode of the electric bus when the optical fiber does not change within a predetermined period of time after the optical bus-bridging device has outputted a signal to the optical fiber.