基于非侵入式负荷分解的空调集群AGC调频备用容量评估方法
An AGC Frequency Control Reserve Capacity Evaluation Method for Air Conditioner Groups Based on Nonintrusive Load Disaggregation
聂世豪 1陈磊 1郝玲 1徐飞 1闵勇 1窦真兰 2张春雁 2孙沛3
作者信息
- 1. 清华大学电机工程与应用电子技术系,北京 100084
- 2. 国网上海市电力公司,上海 200223
- 3. 国网上海市电力公司电力科学研究院,上海 200437
- 折叠
摘要
用户侧海量空调负荷资源具有参与系统频率控制的巨大潜能,可将海量分散的单体空调聚合为空调集群参与系统自动发电控制(AGC)调节,但单体空调的运行状态具有随机性.为准确评估集群的调频备用容量,提出一种数据驱动的非侵入式负荷分解方法来评估空调集群的AGC调频备用容量.该方法构建了序列到序列模型,以非侵入的形式来预测单体空调调频备用容量;考虑到空调参与AGC可能会影响用户舒适度,评估了单体空调参与AGC调频的可用性,并构建判定单体空调是否纳入空调集群调频备用的选择机制.该方法将台区子站内可参与AGC的单体空调聚合得到台区子站的空调集群调频备用,将所有台区子站的空调集群调频备用聚合得到全体空调集群调频备用.模拟在不同程度系统频率跌落情况下,空调集群与火电机组协同进行AGC调频,仿真结果证实方法的有效性.
Abstract
Massive air-conditioner resources on the consumer side have a huge potential to be involved in system frequency control,and massive scattered individual air-conditioners can be aggregated into air-conditioner groups to participate in system automatic generation control(AGC).As the operating status of individual air-conditioners is random,it is necessary to accurately evaluate the frequency control reserve capacity of air-conditioner groups.In this paper,a data-driven nonintrusive load disaggregation(NILD)method is proposed to incorporate massive air-conditioner groups into AGC frequency control reserve.First,the proposed method constructs a sequence-to-sequence model to nonintrusively forecast the frequency control reserve capacity of individual air-conditioners.Considering the fact that the participation of air-conditioners in AGC may affect the comfort of users,the feasibility of individual air-conditioners is evaluated to participate in AGC frequency control and a selection mechanism is constructed to determine whether they can be included in the frequency control reserve of air-conditioner groups.In the proposed method,individual air-conditioners within a sub-station that participate in AGC are aggregated to derive the air-conditioner group frequency control reserve of the sub-station,and the air-conditioner group frequency control reserve of all sub-stations are aggregated to derive the entire air-conditioner group frequency control reserve.The experiments simulate different degrees of system frequency drops in which air-conditioner groups work cooperatively with thermal units for AGC frequency control.The simulation results demonstrate the validity of the proposed method.
关键词
自动发电控制调频/空调集群/负荷预测/非侵入式负荷分解Key words
automatic generation control(AGC)frequency control/air conditioner groups/load forecas-ting/nonintrusive load disaggregation(NILD)引用本文复制引用
出版年
2024
NETL
NSTL
万方数据