Abstract: The compressed air energy storage power generation device includes a third heat exchanger and fourth heat exchangers. The third heat exchanger performs heat exchange between the air exhausted from the expander and the second heating medium to cool the second heating medium. The fourth heat exchanger performs heat exchange between the second heating medium cooled by the third heat exchanger and at least one of the lubricating oil to be supplied to the compressor or the first heating medium to be supplied to the first heat exchanger to cool the lubricating oil or the first heating medium.

Abstract: This compressed air storage power generation device 10 is provided with: a power demand receiving unit 60; a cold heat demand receiving unit 61; a power supply adjustment device 19 which adjusts the amount of power generated by a generator 15; a cold heat supply adjustment valve 22 which adjusts the amount of cold heat supplied from a first heat medium storage unit 21 to consumer equipment 3; and a control device which controls the power supply adjustment device 19 and the cold heat supply adjustment valve 22 so as to supply the consumer equipment 3 with power and cold heat corresponding to the power demand value and the cold heat demand value.

Abstract: A compressed air energy storage power generation device includes a first heat exchanger, a heat storage tank, a second heat exchanger, a heating unit, a first power distributor, and a controller. The first heat exchanger performs heat exchange between the compressed air from a compressor and the heating medium. The heat storage tank stores the heating medium heatexchanged by the first heat exchanger. The second heat exchanger performs heat exchange between the compressed air from an accumulator tank and the heating medium from the heat storage tank. The first power distributor distributes the generated power of the power generator to a power system and the heating unit. When the internal pressure of the accumulator tank reaches a predetermined pressure and the generated power is larger than the power demand, the controller supplies a part or all of the generated power to the heating unit by the first power distributor.

Abstract: A compressor compresses air in such a manner that a motor is driven by renewable energy. An accumulator tank stores the air thus compressed. An expander is driven by the compressed air. A generator is mechanically connected to the expander. A first heat exchanger recovers compressed heat. A heat medium tank that stores a heat medium. A second heat exchanger that heats the compressed air. A first pump adjusts an amount of the heat medium to be supplied to the first heat exchanger. A control device controls the first pump to adjust the amount of heat medium to be supplied to the first heat exchanger so as to maintain the heat medium, which is stored in the heat medium tank, at a predetermined first temperature.

Abstract: A compressed air storage power generation device 1 is provided with: a motor 11 which is driven using input electric power; a compressor 10 which is mechanically connected with the motor and compresses air; a plurality of accumulator tank groups 20A, 20B, 20C, 20D which are in fluid connection with the compressor and in which compressed air obtained by the compressor is stored; a plurality of pressure sensors 21A, 21B, 21C, 21D which are provided in the accumulator tank groups and which measure pressures of the accumulator tank groups; an expander 30 which is in fluid connection with the accumulator tank groups and driven by means of compressed air supplied from the accumulator tank groups; a generator 31 which is mechanically connected with the expander; and a control unit 40 which, on the basis of the pressures of the respective accumulator tank groups measured by means of the pressure sensors, determines the order of the accumulator tank groups in which to store compressed air for charging, and determines

Abstract: A compressor, a first heat exchanger, a first heat storage unit, a pressure accumulation unit, a second heat exchanger, and a second heat storage unit are provided. The first heat storage unit and the second heat storage unit are connected by a first flow passage and a second flow passage. The first and second flow passages are connected by a third flow passage. A first on-off means is provided in a first region of the first flow passage and a second on-off means is provided in a second region. A third on-off means is provided in a third region of the second flow passage, and a fourth on-off means is provided in a fourth region. A driving means and a heating means are provided in the third flow passage.

Abstract: A compressed air energy storage generator includes a motor, a compressor, a pressure accumulator, an expander, a generator, an electric-motor inverter, a generator inverter, a feed command receiver, a discharge command receiver, and a controller. The controller includes a feed determination unit, a discharge determination unit, and an input and output adjustment unit, the feed determination unit being configured to determine whether a feed command value is smaller than minimum charge power, the discharge determination unit being configured to determine whether a discharge command value is smaller than minimum discharge power, the input and output adjustment unit being configured to control, when the feed determination unit determines that the feed command value is smaller than the minimum charge power or when the discharge determination unit determines that the discharge command value is smaller than the minimum discharge power, the inverters to simultaneously drive the motor and the generator.

Abstract: The compressed air energy storage power generation device includes a third heat exchanger and fourth heat exchangers. The third heat exchanger performs heat exchange between the air exhausted from the expander and the second heating medium to cool the second heating medium. The fourth heat exchanger performs heat exchange between the second heating medium cooled by the third heat exchanger and at least one of the lubricating oil to be supplied to the compressor or the first heating medium to be supplied to the first heat exchanger to cool the lubricating oil or the first heating medium.

Abstract: This compressed air storage power generation device 10 is provided with: a power demand receiving unit 60 which receives in real-time the power demand value of consumer equipment 3; a power supply adjustment device 19 which adjusts the amount of power generated by a generator 15; and a control device which has a power generation amount control unit 17a for controlling the power supply adjustment device 19 so as to supply the consumer equipment 3 in a timely fashion with power corresponding to the power demand value received by the power demand receiving unit 60.

Abstract: A compressed air energy storage power generation device equipped with: a compressor mechanically connected to a motor; a first pressure storage tank storing compressed air from the compressor; an expansion device driven by compressed air from the tank; a generator mechanically connected to the expansion device; a first heat exchanger that exchanges heat between a heat medium and the compressed air supplied from the compressor to the tank; a second heat exchanger that exchanges heat between the heat medium and the compressed air supplied from the tank to the expansion device; a pressure sensor that detects the state of charge (SOC) of the tank; SOC adjustment units that adjusts the SOC; and a control device. The control device controls the SOC adjustment units such that the detected SOC is within an optimal SOC range while satisfying the requested power.

Abstract: This compressed air storage power generation device 10 is provided with: a power demand receiving unit 60; a cold heat demand receiving unit 61; a power supply adjustment device 19 which adjusts the amount of power generated by a generator 15; a cold heat supply adjustment valve 22 which adjusts the amount of cold heat supplied from a first heat medium storage unit 21 to consumer equipment 3; and a control device which controls the power supply adjustment device 19 and the cold heat supply adjustment valve 22 so as to supply the consumer equipment 3 with power and cold heat corresponding to the power demand value and the cold heat demand value.

Abstract: In a compressed air energy storage and power generation device, a compressed air energy storage and power generation method defines, as a reference storage value, a storage value indicating that a storage amount of air in an accumulator tank is in a predetermined intermediate state. At the reference storage value, at least one of a motor and a generator rotates at a rated rotation speed. When a storage value indicating a current storage amount in the accumulator tank is larger than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or less than the rated rotation speed. When the storage value indicating the current storage amount in the accumulator tank is smaller than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or more than the rated rotation speed and equal to or less than a maximum permissible rotation speed.

Abstract: A compressed air energy storage power generation device equipped with: a compressor mechanically connected to a motor; a first pressure storage tank storing compressed air from the compressor; an expansion device driven by compressed air from the tank; a generator mechanically connected to the expansion device; a first heat exchanger that exchanges heat between a heat medium and the compressed air supplied from the compressor to the tank; a second heat exchanger that exchanges heat between the heat medium and the compressed air supplied from the tank to the expansion device; a pressure sensor that detects the state of charge (SOC) of the tank; SOC adjustment units that adjusts the SOC; and a control device. The control device controls the SOC adjustment units such that the detected SOC is within an optimal SOC range while satisfying the requested power.

Abstract: In a compressed air energy storage and power generation device, a compressed air energy storage and power generation method defines, as a reference storage value, a storage value indicating that a storage amount of air in an accumulator tank is in a predetermined intermediate state. At the reference storage value, at least one of a motor and a generator rotates at a rated rotation speed. When a storage value indicating a current storage amount in the accumulator tank is larger than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or less than the rated rotation speed. When the storage value indicating the current storage amount in the accumulator tank is smaller than the reference storage value, at least one of the motor and the generator is controlled to rotate at equal to or more than the rated rotation speed and equal to or less than a maximum permissible rotation speed.

Abstract: A compressed air energy storage and power generation device comprises a motor, a compressor, a pressure accumulation tank, an expander, and a generator. The motor is driven by a fluctuating input power. The compressor is mechanically connected to the motor and compresses air. The pressure accumulation tank is fluidly connected to the compressor and stores air compressed by the compressor. The expander is fluidly connected to the pressure accumulation tank and is driven by compressed air supplied from the pressure accumulation tank. The generator is mechanically connected to the expander and generates power to be supplied to a user. A cooling water flow path, whereby water flows inside a cooling water pipe for cooling air that is a working fluid, is provided inside a casing of the compressor. As a result, a compressed air energy storage and power generation device can be provided that is capable of efficiently reducing compressive axial force and of reducing power consumption.

Abstract: A compressed air storage and power generation device (1) is provided with motors (3a-3c), compressors (4a-4c), compressed air storage tanks (5a-5c), injection-side valves (6a-6e), expanders (7a-7c), discharge-side valves (8a-8e), generators (9a-9c), an output sensor (10), pressure sensors (11a-11c), and a control device (12). The control device (12) uses a tank (5c) with a relatively large capacity for long-period variable power and uses tanks (5a, 5b) with relatively low capacities for short-period variable power, all such power having been generated using natural energy, and thereby performs control by which both the long-period and short-period variable power are leveled out and power is output according to the power demand. The compressed air storage power generation device (1) levels out both the long-period and short-period variable power and outputs the power according to the power demand.

Abstract: A compressed air energy storage power generation device 2 includes a compressor, a pressure accumulator tank, and an expander. The compressor compresses air by being driven with renewable energy. The pressure accumulator tank stores the air compressed by the compressor. The expander is driven by the compressed air. A power generator is mechanically connected to the expander and generates electric power, which is to be supplied to a demander.

Abstract: A compressed-air storage and power generation method according to the present invention is provided with: a first air-compression step; a first air-storage step; a first air-supply step; a first power-generation step; a first heat-exchange step; a heat-medium storage step; a second heat-exchange step; and an air-discharge step. In the air-discharge step, when the amount of compressed air stored in a pressure-accumulation tank (12) exceeds a prescribed amount in the first air-storage step, the air compressed by a first compressor (10) is discharged outside without being stored in the pressure-accumulation tank (12). Therefore, it is possible to provide a compressed-air storage and power generation method by which fluctuating electrical power can be smoothed efficiently even after compressed air is stored up to the storage capacity of the storage space.

Abstract: A compressor compresses air in such a manner that a motor is driven by renewable energy. An accumulator tank stores the air thus compressed. An expander is driven by the compressed air. A generator is mechanically connected to the expander. A first heat exchanger recovers compressed heat. A heat medium tank that stores a heat medium. A second heat exchanger that heats the compressed air. A first pump adjusts an amount of the heat medium to be supplied to the first heat exchanger. A control device controls the first pump to adjust the amount of heat medium to be supplied to the first heat exchanger so as to maintain the heat medium, which is stored in the heat medium tank, at a predetermined first temperature.

Abstract: A compressed air energy storage (CAES) power generation apparatus includes a motor driven by renewable energy, a compressor driven by the motor, a pressure accumulating tank storing compressed air compressed by the compressor, an expander driven by the compressed air from the pressure accumulating tank, and a generator connected to the expander. The apparatus includes a first heat exchanger that performs heat exchange between the compressed air from the compressor to the pressure accumulating tank and a heat medium, cools the compressed air, and heats the heat medium, a heat accumulating tank that stores the heat medium heated by the first heat exchanger, a second heat exchanger that performs heat exchange between the compressed air from the pressure accumulating tank to the expander, heats the compressed air, and cools the heat medium, and third heat exchangers that perform heat exchange between the exhaust heat outside a system and a fluid in the system.