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Setting algorithm of parameters of power system stabilizer

A power system and parameter tuning technology, which is applied in the field of preventing low-frequency oscillation of the power grid, improving the dynamic stability of the power system, and controlling the safety and stability of the power grid

Active Publication Date: 2009-06-03
CHINA ELECTRIC POWER RES INST +1
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AI Technical Summary

Problems solved by technology

At present, there is no algorithm that can simultaneously solve the power system stabilizer algorithm that can play a good role in suppressing low-frequency oscillations within a wide oscillation frequency and at a specific frequency.

Method used

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  • Setting algorithm of parameters of power system stabilizer
  • Setting algorithm of parameters of power system stabilizer

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Embodiment Construction

[0007] Below in conjunction with accompanying drawing and specific embodiment, the present invention will be described in further detail, as figure 1 and 2 Shown:

[0008] The parameter algorithm of the power system stabilizer using the whole frequency band optimization and the specific frequency band optimization includes the input of the test result of the automatic voltage regulator without compensation, the selection of the power system stabilizer type, and the calculation of the power system stabilizer parameters.

[0009] Automatic voltage regulator non-compensated characteristic test Under generator load conditions, add white noise signal to voltage given signal, calculate phase-frequency characteristic Vol(1) between generator voltage feedback value and given value.... ..Vol(n), input this phase-frequency characteristic into the calculation program for calculation. Its purpose is to provide the raw phase for power system stabilizer compensation.

[0010] The purpose...

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Abstract

The invention discloses a setting algorithm of parameters of a power system stabilizer. In the algorithm, an all-frequency band optimization algorithm and a specific frequency band optimization algorithm are adopted, and setting of the common parameters of the power system stabilizer including PSS1A, PSS2A, PSS2B and H infinity types can be performed. The method can be adapted to change of a power grid operation mode, and can have a good suppression action on both wider frequency oscillation and specific frequency oscillation. The method is applied to setting the parameters of the power system stabilizer, thus the power system stabilizer can give full play to improving dynamic stability of the power grid and preventing low-frequency oscillation.

Description

technical field [0001] The invention belongs to the fields of power grid security and stability control, improvement of power system dynamic stability, and prevention of power grid low-frequency oscillation, and in particular relates to a parameter calculation method for different types of power system stabilizers. Background technique [0002] With the continuous expansion of the capacity and scale of China's power grid, the dynamic stability of the power system has increasingly become an important factor affecting the safety and power transmission capacity of the power grid. , Changing the parameters of the voltage regulator, using controllable series compensation, and using DC modulation, configuring a power system stabilizer is the most important and basic means. In order to ensure the adaptability of the power system stabilizer to the change of the power transmission mode of the power grid and the change of the power flow of the power grid, how to select the parameters ...

Claims

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Application Information

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IPC IPC(8): H02J3/00
Inventor 李文锋刘增煌朱方何凤军濮钧晁晖赵红光
Owner CHINA ELECTRIC POWER RES INST
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