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Method of operating an internal combustion engine connected to an electric generator, in particular a synchronous generator

A technology for synchronous generators and internal combustion engines, which is used in the control of generators, engine control, machines/engines, etc., and can solve problems such as generator instability.

Active Publication Date: 2015-05-06
GE JENBACHER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, pole slip leads to an instability of the generator, in which case the generator can no longer ideally convert the mechanical power introduced into the rotor by the internal combustion engine via the engine shaft into electrical power

Method used

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  • Method of operating an internal combustion engine connected to an electric generator, in particular a synchronous generator
  • Method of operating an internal combustion engine connected to an electric generator, in particular a synchronous generator
  • Method of operating an internal combustion engine connected to an electric generator, in particular a synchronous generator

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Embodiment Construction

[0035] figure 1 A generator 2 is shown in a schematic block diagram, which is electrically connected to a three-phase power supply network 1 . The generator 2 is designed as a synchronous generator and has a stator 6 and a rotor 7 arranged rotatably inside the stator 6 . The three phases of the supply network 1 are connected in known manner to the windings on the stator 6 of the generator 2 . The power supply network 1 can be a public power supply network with a predetermined grid frequency, or, for example, a local power supply network in isolated operation, ie a predetermined grid frequency of the generator 2 in isolated operation. The rotor 7 or the armature of the generator 2 is connected to the motor shaft 8 of the internal combustion engine 4 in a substantially rotationally fixed manner via the coupling device 3 . The internal combustion engine 4 can be, for example, a stationary gas engine, ie the gas engine can be designed as an externally ignited reciprocating pisto...

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Abstract

A method of operating an internal combustion engine connected to an electric generator, in particular a synchronous generator, during a network fault, in particular during an electric short-circuit, in a power supply network connected to the generator, wherein a mechanical power delivered by the internal combustion engine is introduced into the generator and converted into electric power in the generator, wherein the electric power is delivered to the power supply network, wherein the mechanical power delivered by the internal combustion engine is at least temporarily increased in dependence on the value of at least one operating parameter of the generator and / or the internal combustion engine prior to the network fault and / or during the network fault, preferably by an amount of a fuel introduced into the internal combustion engine being increased.

Description

technical field [0001] The invention relates to a method for operating an internal combustion engine connected to a generator, in particular a synchronous generator, during a network fault, in particular an electrical short circuit, in a power supply network connected to the generator, wherein the output of the internal combustion engine The mechanical power is introduced into the generator and converted into electrical power in the generator, wherein the electrical power is output to the power grid. Background technique [0002] During grid faults in the supply network, in particular electrical short-circuits in the supply network and the associated drop in supply voltage, changes in the operating parameters of the generators connected to the supply network, in particular synchronous generators, can occur Undesirable changes, such as changes in speed or load angle. In known manner, the angle between the vector of the rotating field of the stator of the generator and the ve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02D29/06F02D41/00H02J3/46
CPCF02D29/06F02D31/007F02D41/021F02D41/36F02D2041/2093F02D2200/1012H02P9/04H02P9/102
Inventor J·戈麦斯H·科佩切克E·克鲁肯豪瑟尔H·绍姆贝尔格
Owner GE JENBACHER
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