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PSS Amplitude-Phase Coordinated Optimization Parameter Tuning Method, System, Equipment and Storage Medium Based on Multi-objective Lightning Algorithm

A technology of coordinated optimization and parameter tuning, applied in electrical components, circuit devices, AC network circuits, etc., can solve problems such as adding multiple targets, and achieve the effects of good convergence, safe and stable operation, and fast calculation speed.

Active Publication Date: 2022-04-01
XIAN THERMAL POWER RES INST CO LTD
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  • Claims
  • Application Information

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Problems solved by technology

However, after adding multi-objective and nonlinear constraints, there are still some defects in solving the PSS tuning optimization problem.

Method used

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  • PSS Amplitude-Phase Coordinated Optimization Parameter Tuning Method, System, Equipment and Storage Medium Based on Multi-objective Lightning Algorithm
  • PSS Amplitude-Phase Coordinated Optimization Parameter Tuning Method, System, Equipment and Storage Medium Based on Multi-objective Lightning Algorithm
  • PSS Amplitude-Phase Coordinated Optimization Parameter Tuning Method, System, Equipment and Storage Medium Based on Multi-objective Lightning Algorithm

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Embodiment Construction

[0035] The present invention is described in further detail below in conjunction with accompanying drawing:

[0036] The PSS amplitude-phase coordination optimization parameter tuning method based on the multi-objective lightning algorithm of the present invention comprises the following steps:

[0037] 1) Obtain the PSS model to be modeled and its basic parameters, and at the same time obtain the non-PSS compensation phase characteristic curve of the excitation system to be analyzed within 0.1-2.0Hz;

[0038] Such as figure 1 As shown, any PSS model can be abstracted into three parts, that is, the DC blocking link, the lagging link, and the lead-lag phase compensation link. Up to the third level, the phase characteristic curve without PSS compensation is obtained by field measurement with a spectrum analyzer, and the basic parameters include the hysteresis link parameter T 7 , the parameter T of the direct blocking link ω1 and lead-lag compensation parameter T 1 ,T 2 ,T ...

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Abstract

The invention discloses a PSS amplitude-phase coordination optimization parameter setting method, system, equipment and storage medium based on a multi-objective lightning algorithm. The non-PSS compensation phase characteristic curve of the system within 0.1-2.0Hz; 2) Set the initialization environment; 3) Use the transfer function of the PSS model to construct the amplitude-phase coordination optimization objective function; 4) Use the multi-objective lightning algorithm to solve the amplitude-phase Coordinate and optimize the objective function to obtain the optimal solution, and complete the PSS amplitude-phase coordination optimization parameters based on the multi-objective lightning algorithm. The method, system, equipment and storage medium can realize the setting of the PSS amplitude-phase coordination optimization parameters to ensure the safe and stable operation of the power system .

Description

technical field [0001] The invention belongs to the technical field of power system stabilizer parameter setting, and relates to a PSS amplitude-phase coordination optimization parameter setting method, system, equipment and storage medium based on a multi-objective lightning algorithm. Background technique [0002] With the expansion of the grid scale and the continuous input of new energy and DC systems, the nonlinear characteristics of the system are prominent, and the power oscillation problem caused by disturbances often occurs in practice. The input of PSS has a certain inhibitory effect on low-frequency power oscillation, and the excitation regulators of large and medium-sized generator sets are all equipped with PSS links. In field tuning, the consideration of PSS tuning is mainly focused on phase compensation, ignoring the objective fact that PSS has insufficient gain in different frequency bands. In the research, the maximum damping ratio of the system and the best...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/002H02J2203/20
Inventor 雷阳何信林牛利涛王团结马晨原杨世强李春丽寇林方子朝张灏辛志波
Owner XIAN THERMAL POWER RES INST CO LTD