浙江电力2025，Vol.44Issue(9)：21-29,9.DOI:10.19585/j.zjdl.202509003
基于Pade近似的新型电力系统频率响应模型
A Padé approximation-based frequency response model for modern power systems
摘要
Abstract
The integration of large-scale renewable energy has led to decentralized and diversified frequency regula-tion units in modern power systems,significantly increasing the complexity of frequency response analysis.Accurate and efficient evaluation of each regulation unit's contribution while establishing a simple yet reliable system-wide frequency response model remains a key research challenge.First,detailed analysis is conducted on conventional units,wind farms,and PV power stations,where individual frequency response models are established for each fre-quency regulation unit.These unit-level models are then integrated to form a high-order frequency response model for modern power systems.To address computational challenges caused by high model orders in complex system ap-plications,the Padé approximation method is applied for order reduction,yielding a practical frequency response model for modern power systems.Finally,simulations on modified IEEE 9-bus and 39-bus test systems demonstrate that the proposed model maintains strong prediction accuracy while achieving significant structural simplification.关键词
新型电力系统/频率响应特性/Pade近似/降阶建模Key words
modern power system/frequency response characteristic/Padé approximation/order-reduction modeling引用本文复制引用
卢国强,李剑,王亦婷,王怀远..基于Pade近似的新型电力系统频率响应模型[J].浙江电力,2025,44(9):21-29,9.基金项目
福建省自然科学基金(2022J01113) （2022J01113）
国网青海省电力公司科技项目(522800230001) （522800230001）
