School of Electrical Engineering, Guangxi University, Nanning 530004, China
Under the coupling influence of renewable energy, demand side response, electric vehicles (EVs), energy storage and other factors, the electrical load has undergone fundamental changes, gradually evolving from the traditional “pure load” to the generalized load with the dual characteristics of “load” + “power”. Generalized load is a new, complex and abstract concept. Analyzing and studying the curve modes and characteristics of generalized load is an important basic work in the power system planning and scheduling. In view of the current lack of generalized load data and lack of research on the characteristics of generalized load curves, this paper provides the generalized load simulation model with different factors, and then explores the morphological characteristics of generalized load curves in different scenarios. Firstly, the generalized load simulation models considering EV charging, renewable energy access, response electricity price and response to new energy fluctuation are established respectively. Based on this, a generalized load simulation model considering coupling of multiple factors is proposed. Through the established simulation model, it is possible to generate future generalized load data for the analysis, and solve the current problem of lack of analysis data. The density-based spatial clustering of application with noise (DBSCAN) method is used to extract the generalized load characteristic curves from the generated data. Finally, by setting different generalized load scenarios, the future generalized load characteristic curves are simulated and analyzed, and various generalized load characteristic curves that may appear in the future are obtained.
This work is supported by National Key R&D Program of China (No. 2016YFB0900100), National Natural Science Foundation of China (No. 51977042) and Innovation Project of Guangxi Graduate Education (No. YCBZ2019003).
|||WEI Shanyang, LI Jinghua, HUANG Qian, et al. Pattern Analysis of Generalized Load Characteristic Curve Considering Coupling of Multiple Factors[J]. Automation of Electric Power Systems,2021,45(1):114-122. DOI:10.7500/AEPS20200419004|