自适应事件触发预测增强型分布式负荷频率预测控制  

Adaptive event-triggered prediction-enhanced distributed load frequency predictive control

作　　者：马苗苗[1,2] 郝若欣 刘向杰 Miaomiao MA;Ruoxin HAO;Xiangjie LIU(State Key Laboratory of Alternate Electric Power System with Renewable Energy Sources,North China Electric Power University,Beijing 102206,China;School of Control and Computer Engineering,North China Electric Power University,Beijing 102206,China)

机构地区：[1]华北电力大学新能源电力系统全国重点实验室,北京102206 [2]华北电力大学控制与计算机工程学院,北京102206

出　　处：《中国科学:信息科学》2025年第2期401-411,共11页Scientia Sinica(Informationis)

基　　金：智能电网重大专项(2030)(批准号:2024ZD0802000);国家电网公司科技项目(批准号:52280024000L);中央高校基本科研业务费专项资金(批准号:2023JC002)资助。

摘　　要：针对存在负荷扰动的多区域互联电力系统负荷频率控制问题,本文提出一种自适应事件触发预测增强型分布式模型预测控制策略.首先,将整个互联系统按区域划分为若干个动态耦合的子系统,构造扰动观测器对外界未知扰动进行估计.通过在优化问题中考虑调速器阀门限制并引入扰动估计,构建预测增强型分布式预测控制器,实现各子系统的负荷频率控制.此外,基于当前时刻与最新触发时刻状态间偏差设计自适应事件触发机制以更好协调系统性能和计算负担.结果表明,当系统存在负荷扰动时,所提控制策略在满足控制要求的同时显著降低计算负担,且所提策略在系统参数存在不确定的情况下具有良好的鲁棒性.This paper proposes an adaptive event-triggered prediction-enhanced distributed control strategy to address the load frequency control(LFC)problem in multi-area interconnected power systems with load disturbances.Firstly,the interconnected system is decomposed into several dynamically coupled subsystems.The disturbance observer is constructed to estimate external unknown disturbance.Considering the governor valve limitation and introducing the disturbance estimation into the optimization problem,a prediction-enhanced distributed model predictive controller is constructed to achieve LFC for each subsystem.Additionally,in order to better coordinate system performance and computational burden,an adaptive event-triggered mechanism is designed based on the state error between the current and the most recent triggering instant.The results indicate that the proposed control strategy significantly reduces the computational burden while meeting control requirements in the presence of load disturbances.Additionally,the proposed strategy exhibits good robustness against system parameter uncertainties.

关 键 词：扰动补偿 自适应事件触发 分布式模型预测控制 互联电力系统 负荷频率控制 

分 类 号：TM715[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]