The widespread expansion of renewable energy, like wind and photovoltaic (PV), increases the importance of power system flexibility. Quantify the balance between the flexibility supply of hydropower and t.
Does a WMCB system consider wind-PV complementary characteristics?
In this paper, based on the basic principle of power system flexibility, the flexibility evaluation method framework of a WMCB system that considers wind-PV complementary characteristics is proposed to meet the needs of energy base development and planning.
Then, they obtained the optimal complementary power system consisting of wind power with the capacity of 2200 MW and PV power with the capacity of 1800 MW, the best capacity ratio of the wind-PV and hydropower was 1.1:1.
What is the complementarity evaluation index of a wind power system?
The complementarity evaluation index of the power system first increases and then decreases with an increasing PV capacity rate. When the wind power capacity rate is 43%, the complementarity evaluation index reaches the largest value, and the complementarity of the wind-PV reaches the best value.
Does the regional wind-PV power complementarity index consider fluctuation?
Although the wind and PV power output processes are uncontrollable, the wind and PV power output of the power system is complementary to each other in terms of certainty and randomness. Therefore, the regional wind-PV power complementarity index considers fluctuation (CICF), is adopted in this study.
How can the WMCB power system improve the efficiency of wind-PV power?
The complementary characteristics of wind, PV, and hydropower resources within the year are fully used to improve the comprehensive benefits of the WMCB power system. The development of the WMCB could ensure the efficient utilization of wind-PV power.
What is the regional wind-PV complementarity evaluation method?
According to the regional wind-PV complementarity evaluation method that considers the fluctuation of wind and PV power output (in Section 2.1), the wind and PV power complementarity characteristics of the WMCB in the downstream Yalong River basin are analyzed.