南方电网技术2024，Vol.18Issue(11)：38-47,10.DOI:10.13648/j.cnki.issn1674-0629.2024.11.005
基于等高线控制器波特图的多频段稳定器PSS4B迭代设计方法
Iterative Design Approach of Multi-Band Stabilizer PSS4B Based on Contoured Controller Bode Plots
摘要
Abstract
As one of the most effective means to suppress low-frequency oscillations,power system stabilizers(PSS)have been widely used in power systems.The most widely used power system stabilizer(PSS)in China today is PSS2B.However,due to its own structural problems,PSS2B has a general suppression effect on low-frequency interregional oscillation modes.The new multi-band stabilizer PSS4B is expected to solve this problem.However,the multi-parameter and multi-degree freedom of PSS4B bring dif-ficulties to its parameter tuning.An iterative design approach is proposed for PSS4B stabilizers based on the contoured controller Bode(CCBode)plot.A PSS4B stabilizer is viewed as two filters connected in series:a band-pass filter and a phase compensator.A space searching approach is used to tune the phase compensator which ensures that the phase frequency response of the PSS4B stabilizer is bounded within an acceptable limit.A CCBode plot then helps tune the magnitude frequency response of the band-pass filter so as to achieve a better stability performance over a wide range of frequency band.Case studies of Kundur's four-machine-two-area system is reported to demonstrate the effectiveness of the proposed method.关键词
等高线控制器波特图(CCBode)/多频段稳定器PSS4B/低频振荡/电力系统稳定器(PSS)/空间搜索法Key words
contoured controller bode(CCBode)plot/multi-band stabilizer PSS4B/low-frequency oscillation/power system stabilizer(PSS)/space-searching approach分类
动力与电气工程引用本文复制引用
曾丕江,黄润,黄伟,叶鹏举,江崇熙,甘德强..基于等高线控制器波特图的多频段稳定器PSS4B迭代设计方法[J].南方电网技术,2024,18(11):38-47,10.基金项目
国家自然科学基金资助项目(U2166601) （U2166601）
中国南方电网有限责任公司科技项目(YNKJXM20220025). Supported by the National Natural Science Foundation of China(U2166601) （YNKJXM20220025）
the Science and Technology Project of China Southern Power Grid Co.,Ltd.(YNKJXM20220025). （YNKJXM20220025）
