Long-term system load forecasting based on data-driven linear clustering method

Journal of Modern Power Systems and Clean Energy - Tập 6 - Trang 306-316 - 2017
Yiyan LI1, Dong HAN1, Zheng YAN1
1Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education Department of Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China

Tóm tắt

In this paper, a data-driven linear clustering (DLC) method is proposed to solve the long-term system load forecasting problem caused by load fluctuation in some developed cities. A large substation load dataset with annual interval is utilized and firstly preprocessed by the proposed linear clustering method to prepare for modelling. Then optimal autoregressive integrated moving average (ARIMA) models are constructed for the sum series of each obtained cluster to forecast their respective future load. Finally, the system load forecasting result is obtained by summing up all the ARIMA forecasts. From error analysis and application results, it is both theoretically and practically proved that the proposed DLC method can reduce random forecasting errors while guaranteeing modelling accuracy, so that a more stable and precise system load forecasting result can be obtained.

Tài liệu tham khảo

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