Combination Forecasting of Power Load Based on Polynomial Trend Extrapolation and ARIMA Model

Author:

Xia Jing Jing1,Qi Huan1,Wang Zi Qi2

Affiliation:

1. Huazhong University of Science and Technology

2. Electric Power Dispatching and Communication Center of Henan Province

Abstract

The power load forecasting is the core component of the early warning system for fuel storage margin in power system and an important guarantee to the early warning function to achieve. In this paper, one province's 2008 load data is chosen to forecast the electricity consumption in 2009. Firstly the two forecasting models of polynomial trend extrapolation and ARIMA are established, and then the combined model of them is used to forecast, that is, the final result is equal to the sum of the trend value by polynomial extrapolation and the non-trend D-value’s forecasting result by ARIMA. The results indicate that the combination forecasting make the forecast accuracy significantly improved and ensure the effective operation of the early warning system.

Publisher

Trans Tech Publications, Ltd.

Subject

General Engineering

Reference11 articles.

1. Chongqing Kang, Qing Xia, and Mei Liu, Power System Load Forecasting, Beijing: China Electric Power Press, (2007).

2. Hong Xie, Zhonghao Cheng, Guoli Zhang, and Dongxiao Niu, Linear sparse AR forecasting model of load forecasting, Learned journal of North China Electric Power University, Forum Vol. 31, No. 1(Jan. 2004), pp.30-32.

3. Zudi Lu, The compare between correlation structure of double timing AR-MA model and ARMA model, Systems Science and Mathematics, Forum Vol. 15, No. 3(Jul. 1995), pp.222-230.

4. Guijun Ye, Yaohua Luo, Yong Liu, and Hongzhang Jin, Research of load forecasting methods in power system based on ARMA model, Information technology, No. 6(2002), pp.74-76.

5. Liang Chang, Analyzes and forecasts of ARIMA model based on time series analysis, Computer age, No. 2(2011), pp.8-10.

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