Variable power limit control for gas turbines

US10077718B2 · kind B2 · utility

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Jan-Dirk Beiler · Neheim, DE
• Hans-Georg Gamm · Dinslaken, DE
• Thomas Kerstiens · Hachenburg, DE
• Marco Larson · Bad Hersfeld, DE
• Rosa-Eos Mühlhölzer · Berlin, DE
• Florian Purps · Mannheim, DE
• Oliver Schneider · Oppenheim, DE
• Marc Schafer · Schweinfurt, DE
• Philipp Kreutzer · Haltern am See, DE
• Marc Reinberg · Krefeld, DE
• Martin Stapper · Kamp-Lintfort, DE

Key dates

• Filing date: Mar 3, 2015
• Grant date: Sep 18, 2018
• Expiry date: Mar 3, 2035

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F05D2270/335
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating a gas turbine plant having a gas turbine and an electric generator driven by the gas turbine. The method includes detecting an instantaneous power of the gas turbine plant; comparing the detected instantaneous power with a power limit value; and limiting the instantaneous power when the result of the comparison is that the detected instantaneous power is equal to or greater than the power limit value. A step of detecting at least one operating parameter of the gas turbine plant and a step of determining the power limit value as a function of the at least one detected operating parameter are then implemented, wherein the at least one operating parameter of the gas turbine plant includes an ambient pressure and the power limit value is increased when the ambient pressure increases.