抑制新能源次/超同步振荡的SVG鲁棒自适应控制参数设计方法

TM712; 现有抑制新能源次/超同步振荡的静止无功发生器(SVG)控制设计方法大多针对单一运行场景,难以确保运行工况变化下系统的小干扰鲁棒稳定性.为此,提出了一种抑制新能源次/超同步振荡的SVG鲁棒自适应控制参数设计方法.论证了短路比(SCR)可用于评估运行工况变化下含SVG的新能源并网系统小干扰稳定裕度;基于短路比分析方法,发现了代表系统小干扰稳定性最差的关键运行工况;基于H∞控制理论,提出了一种关键运行工况下SVG控制参数鲁棒自适应设计方法.该方法能确保含SVG的新能源并网系统在运行工况变化下系统的小干扰鲁棒稳定性....

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Published in电力自动化设备 Vol. 44; no. 8; pp. 160 - 167
Main Authors 邢纪奎, 袁辉, 代江, 李诗旸, 陈雁, 刘明顺, 辛焕海
Format Journal Article
LanguageChinese
Published 浙江大学 电气工程学院,浙江 杭州 310023%贵州电网有限责任公司电力调度控制中心,贵州 贵阳 550000%南方电网科学研究院有限责任公司,广东 广州 510663 01.08.2024
Subjects
短路比
新能源设备
H∞ control
静止无功发生器
H∞控制
new energy devices
short circuit ratio
static var generator
小干扰鲁棒稳定性
small-signal robust stability
Online AccessGet full text
ISSN1006-6047
DOI10.16081/j.epae.202403006

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Abstract TM712; 现有抑制新能源次/超同步振荡的静止无功发生器(SVG)控制设计方法大多针对单一运行场景,难以确保运行工况变化下系统的小干扰鲁棒稳定性.为此,提出了一种抑制新能源次/超同步振荡的SVG鲁棒自适应控制参数设计方法.论证了短路比(SCR)可用于评估运行工况变化下含SVG的新能源并网系统小干扰稳定裕度;基于短路比分析方法,发现了代表系统小干扰稳定性最差的关键运行工况;基于H∞控制理论,提出了一种关键运行工况下SVG控制参数鲁棒自适应设计方法.该方法能确保含SVG的新能源并网系统在运行工况变化下系统的小干扰鲁棒稳定性.
AbstractList TM712; 现有抑制新能源次/超同步振荡的静止无功发生器(SVG)控制设计方法大多针对单一运行场景,难以确保运行工况变化下系统的小干扰鲁棒稳定性.为此,提出了一种抑制新能源次/超同步振荡的SVG鲁棒自适应控制参数设计方法.论证了短路比(SCR)可用于评估运行工况变化下含SVG的新能源并网系统小干扰稳定裕度;基于短路比分析方法,发现了代表系统小干扰稳定性最差的关键运行工况;基于H∞控制理论,提出了一种关键运行工况下SVG控制参数鲁棒自适应设计方法.该方法能确保含SVG的新能源并网系统在运行工况变化下系统的小干扰鲁棒稳定性.
Abstract_FL Most existing methods for suppressing sub/sup-synchronous oscillation induced by new energies are focused on a single operating condition,which may be invalid for enhancing small-signal robust stability under varying operating conditions.To address this issue,a design method of robust adaptive control para-meter of SVG is proposed to suppress sub/sup-synchronous oscillation caused by new energy.It is demon-strated that short circuit ratio(SCR) is suitable for evaluating small-signal stability margin of a new energy integrated system with SVG under varying operating conditions.Then,based on the SCR analysis method,the critical operating conditions representing the worst small-signal stability of the system are found.A design method of robust adaptive control parameter of SVG under the critical operating conditions based on H∞ control theory is proposed.The proposed control method can ensure small-signal robust stability of the new energy integrated system with SVG under varying operating conditions.
Author 辛焕海
代江
刘明顺
邢纪奎
袁辉
李诗旸
陈雁
AuthorAffiliation 浙江大学 电气工程学院,浙江 杭州 310023%贵州电网有限责任公司电力调度控制中心,贵州 贵阳 550000%南方电网科学研究院有限责任公司,广东 广州 510663
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Author_FL XIN Huanhai
YUAN Hui
LI Shiyang
DAI Jiang
LIU Mingshun
CHEN Yan
XING Jikui
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Keywords 短路比
新能源设备
H∞ control
静止无功发生器
H∞控制
new energy devices
short circuit ratio
static var generator
小干扰鲁棒稳定性
small-signal robust stability
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Publisher 浙江大学 电气工程学院,浙江 杭州 310023%贵州电网有限责任公司电力调度控制中心,贵州 贵阳 550000%南方电网科学研究院有限责任公司,广东 广州 510663
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