Alstom Technology Limited

General Electric Technology Gmbh

Richard Blatter

Reinhard Joho

Michel Verrier

Holger Gerhard Nagel

Erland Soerensen

Olivier Drenik

Yves Sabater

Peter Mueller

Stephan Hepner

Sture Lindahl

A power plant frequency response characteristic is implemented by controlling the power consumption of a COcapture and compression system. A power reserve is provided for under-frequency events without deloading the plant to part load, by an operating method, in which the power consumption of the COcapture system is used to control the net output of the plant.

[object Object]

A turbogenerator () comprises a rotor () and a stator (), which stator () has a polyphase winding, the terminals of which are arranged as generator terminals (UW) in a terminal arrangement () at the turbogenerator () to be connected to a neutral point () and to bus bar connections (SS). The terminal arrangement () is configured such that the phase sequence can be changed in a simple way by changing the connecting scheme at the terminal arrangement ().

Turbogenerator and method of use

A generator for producing high voltages and having at least one generator winding () is connected via a generator circuit () to a network (), which generator circuit has means () for protection against overvoltages. Improved protection against higher voltages is achieved in that the at least one generator winding () is subdivided into a number of winding sections () whose winding insulation is designed such that the insulation level is graduated, and in that the overvoltage protection means have a number of overvoltage protection elements (), which are associated with the respective individual winding sections () and whose response levels are matched to the requirements of the associated winding section.

Generator for producing high voltages

When loading a power station in a grid without any energy, this power station must be able to cover all the short-term power requirements, and at the same time to keep the grid frequency within a permissible tolerance band. The invention specifies a method of providing this capability by means of an efficient combination system. According to the invention, the gas turbine () is loaded in a lower power range such that it is controlled in accordance with a predetermined load program, without having to react to load transients in the grid (). Before the power station is connected to the grid, the heat recovery steam generator () is heated up as an energy store, and a steam turbine () is raised at least to its rated rotation speed, with the steam control valves () being highly restricted. The steam turbine reacts in the event of short-term load requirements from the grid, which cannot be covered by the gas turbine.

Method for starting up and loading a combined power plant

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Schaffhausen, Switzerland

Richard Blatter