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Method and system for controlling a powerplant during low-load operations

A technology of combustion systems and processing systems, applied in mechanical equipment, machines/engines, jet propulsion, etc.

Inactive Publication Date: 2013-10-30
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although power generating equipment usually operates at base load, there are some situations where base load output is not required

Method used

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  • Method and system for controlling a powerplant during low-load operations
  • Method and system for controlling a powerplant during low-load operations
  • Method and system for controlling a powerplant during low-load operations

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Embodiment Construction

[0037] One or more specific embodiments of the invention are described below. In an effort to briefly describe these embodiments, not all features of an actual implementation may be described in the specification. It should be understood that in developing any such actual implementation in any engineering or design plan, a number of implementation-specific decisions must be made to achieve specific goals, such as compliance with system-related and business-related constraints, which Limits may vary by implementation. In addition, it should be understood that such attempts might be complex and time consuming, but nonetheless would be routine design, construction and fabrication operations for those of ordinary skill having the benefit of this disclosure.

[0038]Specific example embodiments are disclosed in this specification. However, specific structural and functional details disclosed in this specification are merely representative of described example embodiments. Embodi...

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Abstract

The present invention provides a system and method of operating a combined-cycle powerplant at part-load without shutting down an HRSG 110 and steam turbine 265. The present invention may apply to a powerplant operating in an open-cycle mode. The present invention may also apply to a powerplant operating in a closed-cycle mode.

Description

technical field [0001] The present invention relates generally to combined cycle power plants, and more particularly to a system and method for operating a power plant when baseload output is not required. Background technique [0002] In an air-breathing turbine, compressed air is mixed with fuel and ignited, creating an energetic fluid (hereafter referred to as "working fluid") that is directed to the turbine section. The working fluid interacts with the turbine blades to generate mechanical energy. These blades rotate a shaft connected to a load (eg, a generator). The rotation of the shaft induces a current in a coil electrically connected to an external circuit. Where the turbine is part of a combined cycle power plant, the high energy fluid leaving the turbine section is directed to a heat recovery steam generator (HRSG). At this time, the heat generated by the working fluid is transferred to the water and used to generate steam. [0003] The combustion process prod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02C3/34F02C3/04F02C7/00
CPCY02E20/16F02C6/18F02C3/107F02C9/00F05D2220/72
Inventor L.A.维奇曼J.J.巴特基维奇S.F.辛普森
Owner GENERAL ELECTRIC CO