Method for optimizing parameters of excitation system of generator set

A technology of excitation system and generator set, which is applied in the field of excitation system to achieve the effect of improving the level of dynamic stability

Inactive Publication Date: 2021-02-23
STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST +1
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Problems solved by technology

[0005] The embodiment of the present invention provides a method for optimizing the parameters of the excitation system of a generating set, which is used to at least solve the problem that it is not applicable to increase the damping level of the power grid for the regional power grid when the dynamic stability level of a regional power grid is found to be at a low damping level. The technical problem of setting and optimizing the operating equipment parameters

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  • Method for optimizing parameters of excitation system of generator set
  • Method for optimizing parameters of excitation system of generator set
  • Method for optimizing parameters of excitation system of generator set

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[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] see figure 1 , which shows the function diagram of the relationship between the damping torque coefficient and the additional adjustment in the method for optimizing the excitation system parameters of the generator set of the present application.

[0023] Such as figure 1 As shown, considering the single machine-infinite bus system model...

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Abstract

The invention discloses a method for optimizing parameters of an excitation system of a generator set. The method is used for optimizing the parameters of the excitation system of the generator set byoptimizing an additional difference adjustment coefficient, excitation dynamic gain and PSS gain of the excitation system of the generator set on the basis of meeting the dynamic performance requirements of the generator set. The method comprises the following steps that 1, the curve relation of damping torque coefficient increment changing along with additional difference adjustment is determined according to specific generator set parameters and operation conditions, and the additional difference adjustment coefficient is optimized to improve damping; and 2,the excitation dynamic gain and the PSS gain are optimized on the basis of meeting the dynamic performance requirements of the unit. The dynamic stability level of the regional power grid is improved by optimizing the additional difference adjustment, the excitation dynamic gain and the PSS gain of the excitation system of the generator set.

Description

technical field [0001] The invention belongs to the technical field of excitation systems, in particular to a method for optimizing the parameters of the excitation system of a generating set. Background technique [0002] Excitation system parameters have an important and significant impact on the dynamic stability and transient stability of the power system. Relevant industry standards stipulate the performance requirements of the excitation system, which indirectly imposes requirements on the excitation parameters. However, these requirements are relatively broad and belong to the requirements that all units can follow. With the continuous expansion of the scale of the power system and the increasing development of the AC-DC hybrid power grid, the proportion of new energy generation such as wind power and photovoltaics has increased, posing many new challenges to the safety and stability of the power system. Since new energy stations are not as superior to synchronous ge...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P9/14H02J3/24H02J3/46G06F30/20
CPCH02P9/14H02J3/24H02J3/46G06F30/20
Inventor 余侃胜吴颖程思萌舒展邹进姚诸香
Owner STATE GRID JIANGXI ELECTRIC POWER CO LTD RES INST
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