Biography
Dr. Xianxun Wang
Dr. Xianxun Wang
Yangtze University, China
Title: Pareto Frontier of Power Production and Process Fluctuation of Power System Consisting of Hydropower, Wind and PV
Abstract: 
Hydropower facilities are a promising avenue for de-carbonization through complementing the intermittent renewable power production from wind and solar photovoltaic facilities in electric power systems. However, due to the hydropower system that is already extremely complicated referring to its multiple and changing duties (e.g., flood mitigation, water supply, and power generation) and its diverse cascade mode (e.g., series, parallel, or both), adding this task to hydropower facilities induces new challenges in terms of objective, temporal, and spatial issues. With improved models, methods, and several case studies, serial researches on integrating wind and photovoltaic power output fluctuation with hydropower pointed out that 1) as for the objectives, a Pareto frontier of power generation and output fluctuations is obtained, and hydropower is able to largely smooth the output fluctuation with slight reduction of the power generation; 2) in refilling season when hydropower has special task to refill the reservoir, it is still feasible to integrate the intraday fluctuation of wind and solar photovoltaic power without affecting the daily plan of refill, but with various shapes of Pareto frontiers before and after the reservoir refilled; 3) from the perspective, allocating local/global complement assignment to small/large (including pumped hydropower storage type) hydropower based on the degree of regulation is an efficient approach to excavate the potential of cascaded hydropower (i.e., obtain the Pareto frontier) and alleviate the environment influences.
Biography: 
Xianxun Wang is currently working as an associate professor at the College of Resources and Environment, Yangtze University. His research is focused on the integration of renewable energy resources via dispatching hydropower facilities, in terms of 1) characterization of fluctuation which reflects the impacts of wind and PV power on the grid, 2) adding new hydropeaking task to existing duties of hydropower considering the time-changing constraints and the spatial diversity of reservoir, 3) influences on the river eco-system caused the renewable energy mix.