基于部分左特征结构配置的电力系统优化阻尼控制

doi:10.19595/j.cnki.1000-6753.tces.170547

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摘要基于线性系统部分特征结构配置思想,提出了一种电力系统阻尼控制器优化设计方法。利用部分左特征结构配置方法,同时配置闭环主导振荡模态的特征值和特征向量,将多余的设计自由度分配到部分特征向量上,改善电力系统的动态阻尼特性。引入动态补偿器型电力系统稳定器（PSS）替代传统PSS,满足部分左特征结构配置方法对输出反馈变量的要求,提高闭环系统的阶次,使系统特征结构在更高的维度中优化配置。最后,建立加权多目标函数,将阻尼控制器的参数优化设计归纳为一个无约束的单目标非线性规划问题,并通过群搜索（GSO）优化算法求解控制器参数。多种运行条件下的新英格兰10机39节点系统仿真分析表明,采用该方法设计的阻尼控制器能有效抑制电力系统低频振荡,较留数法设计的传统PSS有更好的阻尼控制效果和鲁棒性。

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	仲启树
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	金涛

关键词 ：低频振荡, 阻尼控制器, 部分特征结构配置, 电力系统稳定器

Abstract：This paper presents an optimized design of power system damping controller based on partial eigenstructure assignment in linear systems. Eigenvalue and eigenvector of critical oscillating modal are set simultaneously using partial left eigenstructure assignment (PLEA). Extra control degrees of freedom is assigned to partial left eigenvector for improving dynamical damping performance of power system. A dynamical compensator type controller is introduced to replace traditional power system stabilizer (PSS). In this way, additional control freedom is increased and the requirement of inputs to the controller can be fulfilled using PLEA. In the last, weighting multi-objective sub-functions are built, and the parameter design of damping controller can be formulated as a single-objective nonlinear programming problem and solved using group search optimizer (GSO). Simulation results of IEEE-39 system model under multiple operating conditions demonstrate that the controller designed using proposed PLEA can efficaciously damp low-frequency oscillation in power system, yielding a better control performance and robustness in comparison than that of traditional PSS designed using residues method.

Key words： Low frequency oscillation damping controller partial left eigenstructure assignment power system stabilizer

收稿日期: 2017-04-28 出版日期: 2018-07-12

PACS:

TM712

基金资助:欧盟FP7国际科技合作基金（909880）、国家自然科学基金（61304260）和福建省杰出青年科学基金（2012J06012）资助项目

通讯作者: 金涛男,1976年生,研究员,博士生导师,研究方向为在线测量理论与方法、电力系统广域监测、智能电网等。E-mail: jintly@fzu.edu.cn

作者简介: 仲启树男,1980年生,博士研究生,讲师,研究方向为电力系统分析与控制等。E-mail: detecting@lmu.cn

引用本文:

仲启树, 唐志军, 金涛. 基于部分左特征结构配置的电力系统优化阻尼控制[J]. 电工技术学报, 2018, 33(13): 3012-3022. Zhong Qishu, Tang Zhijun, Jin Tao. Optimized Damping Control of Power System Using Partial Left Eigenstructure Assignment. Transactions of China Electrotechnical Society, 2018, 33(13): 3012-3022.

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