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首页> 外文期刊>IEEE Transactions on Power Systems >A Normal Form Analysis Approach to Siting Power System Stabilizers (PSSs) and Assessing Power System Nonlinear Behavior
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A Normal Form Analysis Approach to Siting Power System Stabilizers (PSSs) and Assessing Power System Nonlinear Behavior

机译：选型电力系统稳定器和评估电力系统非线性行为的范式分析方法

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摘要

A nonlinear analysis framework based on normal form (NF) theory and center manifold reduction is proposed to determine the most effective selection of generating units to be equipped with power system stabilizers. The proposed method takes into account the nonlinear system structure and provides information on the effect of control action on nonlinear behavior and modal interaction. Based on a second-order NF representation of the system, the effect of control action on nonlinear behavior is approximated via suitable modification of the initial conditions in the nonlinear coordinate transformations which relate the physical system to the NF coordinates. On the basis of this model, nonlinear power system stabilizer (PSS) sensitivity indices are then proposed to determine the optimum sites to allocate PSS, and criteria to assess the effect of control action on linear modal interaction are developed. Examples of application of the developed approaches on a two-area four-machine test system are presented to estimate controllers' effects on system dynamic performance. The efficacy and accuracy of the method is demonstrated by comparisons to conventional analysis techniques
机译：提出了一种基于范式（NF）理论和中心歧管简化的非线性分析框架，以确定最有效选择要配备电力系统稳定器的发电机组。所提出的方法考虑了非线性系统的结构，并提供了有关控制行为对非线性行为和模态相互作用的影响的信息。基于系统的二阶NF表示，通过将物理系统与NF坐标相关联的非线性坐标转换中的初始条件进行适当修改，可以近似地控制操作对非线性行为的影响。在此模型的基础上，提出了非线性电力系统稳定器（PSS）灵敏度指标，以确定分配PSS的最佳位置，并建立了评估控制作用对线性模态相互作用的影响的标准。给出了在两个区域的四台机器测试系统上开发的方法的应用示例，以估计控制器对系统动态性能的影响。通过与常规分析技术的比较证明了该方法的有效性和准确性

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