Decentralized Frequency Control using Packet-based Energy Coordination*
Decentralized Frequency Control using Packet-based Energy Coordination*
复制标题
DOI：
10.1109/smartgridcomm47815.2020.9302972
复制
发表时间：
2020-07
期刊：
影响因子：
--
通讯作者：
Hani Mavalizadeh;L. A. D. Espinosa;M. Almassalkhi
中科院分区：
文献类型：
--
作者：
Hani Mavalizadeh;L. A. D. Espinosa;M. Almassalkhi
本文提出了一种新的频率响应控制方案的需求侧资源，如电热水器。设计了一种频率相关的控制律，以完全分散的方式从分布式能源（DER）中提供阻尼。该局部控制策略表示用于每个DER的频率相关阈值，其确保聚合响应在频率偏差期间提供阻尼。所提出的分散式策略基于基于分组的DER协调方案的适配，其中每个设备向聚合器发送能量接入请求（也称为“能量分组”）。然后，可以先验地使用先前接受的活动数据包的数量来形成动态电力系统中DER机群的聚合阻尼能力的在线估计。一个简单的两区域电力系统被用来说明和验证分散控制策略的性能和在线阻尼估计的准确性为400，000 DER的舰队。
This paper presents a novel frequency-responsive control scheme for demand-side resources, such as electric water heaters. A frequency-dependent control law is designed to provide damping from distributed energy resources (DERs) in a fully decentralized fashion. This local control policy represents a frequency-dependent threshold for each DER that ensures that the aggregate response provides damping during frequency deviations. The proposed decentralized policy is based on an adaptation of a packet-based DER coordination scheme where each device send requests for energy access (also called an "energy packet") to an aggregator. The number of previously accepted active packets can then be used a-priori to form an online estimate of the aggregate damping capability of the DER fleet in a dynamic power system. A simple two-area power system is used to illustrate and validate performance of the decentralized control policy and the accuracy of the online damping estimating for a fleet of 400,000 DERs.