Power plant

A power station and equipment technology, applied in the direction of mechanical equipment, steam engine equipment, combined combustion mitigation, etc., can solve problems that affect the reliable operation of independent power grids and the stability of power grid frequency stability, so as to reduce the possibility, alternate amplification and keep small Effect

Inactive Publication Date: 2011-09-28
SIEMENS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, especially in the formation or operation of relatively small power grids, frequency-dependent frequency fluctuations depending on the consumers and their time constants are excited, which can seriously affect the reliable operation and stability of the formed independent power grids and especially the stability of its grid frequency

Method used

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Embodiment Construction

[0018] as in figure 1 As can be seen in the block diagram of FIG. 1 , the power supply network 1 consists of a plurality of power plants 2 , 4 and a plurality of energy consumers 6 , 8 , 10 suitably interconnected via busbars 12 . In addition, a number of other power plant installations and consumers, not shown in detail, are connected via the only schematically further grid 14 via the busbar 12 , so that a relatively widely distributed combined grid is formed. Here, in the exemplary embodiment, a GuD plant is provided as the first power plant 2 and a steam power plant as the second power plant 4 . From a control-technical point of view, consumer 6 is represented by a nominal load specified by the grid, while consumer 8 represents a frequency-independent and consumer 10 represents a frequency-dependent load requirement.

[0019] In normal operation, the components shown work synchronously with components contained in other grids 14 and are connected together to form a combine...

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Abstract

The invention relates to a power plant (2, 4) comprising a number of power plant components which are connected to a power supply system (1). An actuator is assigned to each of said power plant components so as to adjust a component-specific power output to the power supply system (1). The inventive power plant (2, 4) can achieve particularly great operational stability against the formation of frequency oscillations in case network islands are created. In order to so so, at least two of the actuators are designed for different control-related reaction times.

Description

technical field [0001] The invention relates to a power station installation with a plurality of power station components connected to a power supply network, each of which is equipped with a regulating device for regulating a component-specific power output to the power supply network. Background technique [0002] Power plant installations, in particular gas turbine installations, steam power generation installations or combined installations such as GuD installations, are used in many fields to generate electrical energy. For this purpose, a power plant usually includes a plurality of power plant components, such as gas turbines or steam turbines, which are provided for generating electrical energy, which are connected to the power supply network on the energy side in a suitable manner, for example via a system of generators and transformers. In this case, the supply network is normally formed by a plurality of consumers and a plurality of such substations, wherein each s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F01K23/18F01K23/00F01K13/02
CPCY02E20/16Y02E20/18F01K23/00F01K13/02
Inventor 丹尼尔·霍夫曼
Owner SIEMENS AG
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