Method for operating a gas storage power plant
AssigneeALSTOM Technology Ltd
InventorRalf Gerdes
Life of this patent
Estimating the term…
Abstract
The present invention relates to a method for operating a gas storage power plant (1) with at least two turbines (3), with at least two compressors (2) and with at least one gas reservoir (4). The compressors (2) are activated for charging the gas reservoir (4) and are at the same time driven by at least one electric motor (7). The turbines (3) are activated for discharging the gas reservoir (4) and at the same time drive at least one generator (12). In order to improve the operating profitability of the gas storage power plant (1), the number of instantaneously activated compressors (2) and/or turbines (3) depends on the current price at the particular time.
Claims28
A method for operating a gas storage power plant with at least one gas reservoir, at least one compressed-air-operated engine and at least two compressors, in which the at least two compressors are activated for charging the gas reservoir and at the same time are driven by at least one electrical drive device, and in which the at least one engine is activated for discharge in the gas reservoir and at the same time drives at least one current generation device, wherein a number of compressors or engines which are jointly active depends on a current price at a particular time;
- wherein,
- at a first current price, at least one compressor is driven by at least one electrical drive device,
- at a second current price, which is lower than the first current price, at least one further compressor is driven by at least one electrical drive device,
- at a third current price, which is higher than the first current price, at least one engine drives at least one current generation device, and
- at a fourth current price, which is higher than the third current price, at least one further engine drives at least one current generation device.
A gas storage power plant, comprising:
- at least one gas reservoir;
- at least two compressors configured to be activated and deactivated independently of one another for charging the at least one gas reservoir;
- and
- at least one compressed-air-operated engine for discharging the gas reservoir, wherein the compressors are configured such that a number of the compressors which are jointly active depends on a current price at a particular time;
- wherein,
- at a first current price, at least one compressor is driven by at least one electrical drive device,
- at a second current price, which is lower than the first current price, at least one further compressor is driven by at least one electrical drive device,
- at a third current price, which is higher than the first current price, at least one engine drives at least one current generation device, and
- at a fourth current price, which is higher than the third current price, at least one further engine drives at least one current generation device.
A method for operating a gas storage power plant with at least one gas reservoir and at least two compressed-air-operated engines and at least one compressor, in which the at least one compressor is activated for charging the gas reservoir and at the same time is driven by at least one electrical drive device, and in which the at least two engines are activated for discharge in the gas reservoir and at the same time drive at least one current generation device, wherein the number of compressors or engines which are jointly active depends on the current price at a particular time;
- wherein,
- at a first current price, at least one compressor is driven by at least one electrical drive device,
- at a second current price, which is lower than the first current price, at least one further compressor is driven by at least one electrical drive device,
- at a third current price, which is higher than the first current price, at least one engine drives at least one current generation device, and
- at a fourth current price, which is higher than the third current price, at least one further engine drives at least one current generation device.
A gas storage power plant, comprising:
- at least one gas reservoir,
- at least one compressor for charging the at least one gas reservoir;
- and
- at least two compressed-air-operated engines configured to be activated and deactivated independently of one another, for discharging the gas reservoir, wherein the engines are configured such that a number of engines which are jointly active depends on a current price at a particular time;
- wherein,
- at a first current price, at least one compressor is driven by at least one electrical drive device,
- at a second current price, which is lower than the first current price, at least one further compressor is driven by at least one electrical drive device,
- at a third current price, which is higher than the first current price, at least one engine drives at least one current generation device, and
- at a fourth current price, which is higher than third current price, at least one further engine drives at least one current generation device.
A method for operating a gas storage power plant with at least one gas reservoir, at least one compressed-air-operated engine and at least two compressors, each assigned to a different pressure stage, in which the at least two compressors are activated for charging the gas reservoir and at the same time are driven by at least one electrical drive device, and in which the at least one engine is activated for discharge in the gas reservoir and at the same time drives at least one current generation device, wherein a number of compressors or engines which are jointly active depends on a current price at a particular time;
- wherein,
- at a first current price, at least one compressor is driven by at least one electrical drive device,
- at a second current price, which is lower than the first current price, at least one further compressor is driven by at least one electrical drive device,
- at a third current price, which is higher than the first current price, at least one engine drives at least one current generation device, and
- at a fourth current price, which is higher than the third current price, at least one further engine drives at least one current generation device.
Dependencies are inferred from the claim text.