Research on the Regional New Energy and Its Complementary Characteristics

Abstract

The modern power generation mode is transforming from traditional thermal power to new energy. Compared with traditional thermal power, wind and solar energy are renewable energy sources whose main advantages are clean, pollution-free and sustainable. At the same time, its resources are also characterized by randomness, intermittency and volatility. Effectively utilizing the complementarity of solar and wind energy resources in terms of geographical and resource characteristics, and rationally constructing wind-solar hybrid power generation systems will be of great significance to smooth the output of the system. In this paper, we design the Kendall index evaluation standard to represent complementary characteristics. In terms of short-term wind-solar complementarity, we took February 2019 as an example to calculate the Kendall rank correlation coefficient in the day, and plotted the data within one month as a line graph. The short-term wind-solar complementarity characteristic results are judged by whether the combined wind and solar output can meet the daily load peak and valley power consumption. We also illustrate the long-term complementarity by calculating the Kendall rank correlation coefficient of wind and PV output in different months and seasons.