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Multi-objective optimal dispatch of household flexible loads based on their real-life operating characteristics and energy-related occupant behavior
Building Simulation ( IF 5.5 ) Pub Date : 2023-08-24 , DOI: 10.1007/s12273-023-1036-y
Zhengyi Luo , Jinqing Peng , Maomao Hu , Wei Liao , Yi Fang

A model-based optimal dispatch framework was proposed to optimize operation of residential flexible loads considering their real-life operating characteristics, energy-related occupant behavior, and the benefits of different stakeholders. A pilot test was conducted for a typical household. According to the monitored appliance-level data, operating characteristics of flexible loads were identified and the models of these flexible loads were developed using multiple linear regression and K-means clustering methods. Moreover, a data-mining approach was developed to extract the occupant energy usage behavior of various flexible loads from the monitored data. Occupant behavior of appliance usage, such as daily turn-on times, turn-on moment, duration of each operation, preference of temperature setting, and flexibility window, were determined by the developed data-mining approach. Based on the established flexible load models and the identified occupant energy usage behavior, a many-objective nonlinear optimal dispatch model was developed aiming at minimizing daily electricity costs, occupants’ dissatisfaction, CO2 emissions, and the average ramping index of household power profiles. The model was solved with the assistance of the NSGA-III and TOPSIS methods. Results indicate that the proposed framework can effectively optimize the operation of household flexible loads. Compared with the benchmark, the daily electricity costs, CO2 emissions, and average ramping index of household power profiles of the optimal plan were reduced by 7.3%, 6.5%, and 14.4%, respectively, under the TOU tariff, while those were decreased by 9.5%, 8.8%, and 23.8%, respectively, under the dynamic price tariff. The outputs of this work can offer guidance for the day-ahead optimal scheduling of household flexible loads in practice.



中文翻译:

基于实际运行特性和与能源相关的居住行为的家庭灵活负荷的多目标优化调度

考虑到住宅灵活负荷的实际运行特性、能源相关的居住者行为以及不同利益相关者的利益,提出了基于模型的优化调度框架来优化住宅灵活负荷的运行。对一个典型家庭进行了试点测试。根据监测到的电器级数据,识别柔性负载的运行特性,并使用多元线性回归和K均值聚类方法开发这些柔性负载的模型。此外,还开发了一种数据挖掘方法,可以从监测数据中提取各种灵活负载的占用者能源使用行为。使用者使用电器的行为,例如每天的开启次数、开启时刻、每次操作的持续时间、温度设置偏好和灵活性窗口,由开发的数据挖掘方法确定。基于建立的灵活负荷模型和识别的用户能源使用行为,开发了多目标非线性优化调度模型,旨在最小化日常电费、用户不满、二氧化碳排放2排放量,以及家庭电力概况的平均爬升指数。该模型借助 NSGA-III 和 TOPSIS 方法进行求解。结果表明,所提出的框架可以有效优化家庭灵活负载的运行。与基准相比,分时电价下,优化方案的日用电成本、CO 2 排放量和家庭用电曲线平均爬坡指数分别降低了7.3%、6.5%和14.4 % 动态电价下分别提高9.5%、8.8%和23.8%。本工作的成果可为实践中家庭灵活负荷日前优化调度提供指导。

更新日期:2023-08-25
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