Method for controlling a thermal power plant using regulated valves
AssigneeElectricite de France
InventorEve Dufosse
Life of this patent
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Abstract
A method of controlling a thermal power plant for electricity generation, said power plant comprising at least one heat source to supply thermal energy to a working fluid circulation circuit. The circuit comprises a high pressure turbine mechanically connected to an electricity generator, a high pressure regulating valve controlling the steam supply to said high pressure turbine from a high pressure superheater associated with a high pressure storage tank. The fluid supply to said high pressure storage tank from a high pressure steam generator is controlled by a high pressure supply valve, and, in response to a need for additional electrical power, the opening of the high pressure regulating valve is increased the opening of the high pressure supply valve is reduced.
Claims10
A method of controlling a thermal power plant for electricity generation, said power plant comprising at least one heat source to supply thermal energy to a working fluid circulation circuit, said circuit comprising at least:
- a high pressure turbine mechanically connected to an electricity generator for generating electricity,
- a high pressure regulating valve controlling the steam supply to said high pressure turbine from a high pressure superheater, said high pressure superheater receiving steam from a high pressure storage tank associated with said high pressure superheater, the fluid supply to said high pressure storage tank from a high pressure steam generator being controlled by a high pressure supply valve arranged between said high pressure steam generator and said high pressure storage tank,
- wherein in response to a need for an increase in electrical power generated by the electricity generator,
- the opening of the high pressure regulating valve is increased
- the opening of the high pressure supply valve is reduced.
An electricity generation thermal power plant, said plant comprising at least one heat source to supply thermal energy to a working fluid circulation circuit, said circuit comprising at least:
- a high pressure turbine mechanically connected to an electricity generator for generating electricity,
- a high pressure regulating valve controlling steam supply to said high pressure turbine from a high pressure superheater, said high pressure superheater receiving steam from a high pressure storage tank associated with said high pressure superheater, the fluid supply to said high pressure storage tank originating from a high pressure steam generator being controlled by a high pressure supply valve arranged between said high pressure steam generator and said high pressure storage tank,
- wherein said power plant comprises means for controlling the high pressure regulating valve and means for controlling the high pressure supply valve, and said power plant is configured such that when a demand for an increase in generated electrical power is received by said power plant,
- the opening of the high pressure regulating valve is increased
- the opening of the high pressure supply valve is reduced.
Dependencies are inferred from the claim text.