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Parameter Tuning Method of Generator Power System Stabilizer

A parameter setting and power system technology, applied in the direction of circuit devices, AC network circuits, reducing/preventing power oscillation, etc., can solve problems such as few applications, improve safety, ensure safe and stable operation, and reduce work flow Effect

Active Publication Date: 2017-12-08
NORTH CHINA ELECTRICAL POWER RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, this method is mostly used as an auxiliary means of laboratory testing, but is rarely used in actual field tests.

Method used

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  • Parameter Tuning Method of Generator Power System Stabilizer
  • Parameter Tuning Method of Generator Power System Stabilizer
  • Parameter Tuning Method of Generator Power System Stabilizer

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Embodiment Construction

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0029] In the prior art, the PSS parameters are tuned using a computational algorithm or a simulation method, and the operation steps are complicated. The PSS parameter tuning method of the generator power system stabilizer of the present invention is an artificial intelligence method, which can automatically tune the PSS parameter according to the measured phase-frequency characteristics of the excitation system without compensation.

[0030] figure 1 It is a schematic flowchart of a PSS parameter setting method for a generator power system stabilizer according to a...

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Abstract

The invention provides a (power system stabilizer) PSS parameter setting method for an electric generator. The parameter setting method comprises the steps of obtaining uncompensated phase-frequency characteristic data of an on-duty unit and corresponding PSS parameter data, and compiling a training sample according to the uncompensated phase-frequency characteristic data and the corresponding PSS parameter data; establishing a neural network, and training the neural network by the training sample; and calculating and obtaining the PSS parameter setting data for an electric generator unit based on the trained neural network, a neural network simulation function and the uncompensated phase-frequency characteristic data of the electric generator unit. The PSS parameter setting method provided by the invention is implemented based on the neural network, so that the complexity of operation can be lowered, the safety in experiments can be improved, and the safe operation of the electric power system can be ensured.

Description

technical field [0001] The invention relates to the field of electric power technology, in particular to a method for parameter setting of a generator power system stabilizer. Background technique [0002] With the development of modern power systems, weakly connected grids, long-distance transmission lines, heavy system loads, and a large number of fast excitation systems in the grid have become its main features. These factors reduce the damping of the power system, greatly increasing the possibility of low-frequency oscillations in the power system, and seriously affecting the stable operation of the power system. At present, the power system stabilizer (PSS) is the most effective measure to suppress low-frequency oscillations. [0003] Power System Stabilizer (PSS) has the advantages of clear physical concept, simple circuit, and convenient debugging, and has become the most effective measure to suppress low-frequency oscillation. In order to ensure that the PSS can wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/24
CPCH02J3/24H02J2203/20
Inventor 付宏伟谢欢庞春凤吴涛苏为民姚谦史扬赵焱徐正龙王丰刘苗李煊曹天植
Owner NORTH CHINA ELECTRICAL POWER RES INST