Affiliation:
1. College of Energy and Electrical Engineering, Hohai University, Nanjing 211100, China
Abstract
Aiming to mitigate the impact of power fluctuation caused by large-scale renewable energy integration, coupled with a high rate of wind and solar power abandonment, the multi-objective optimal dispatching of a cascade hydro–wind–solar–thermal hybrid generation system with pumped storage hydropower (PSH) is proposed in this paper. Based on the proposed system, the scheduling operation strategy takes into account the complex restrictions of cascade hydropower as well as the flexibility of the PSH. According to various scenarios, the NSGA-II approach is adopted to address the optimization problem, minimizing the system’s residual load variation and operation cost. The Pareto solution sets are contrasted and evaluated, applying the TOPSIS with CRITIC weighting. Additionally, the scheduling output of thermal power, cascade hydropower, and PSH is given in terms of different scenarios. The results demonstrate that the allocation of PSH to a hybrid energy system can significantly reduce the operation cost and the fluctuation in the residual load.
Funder
National Natural Science Foundation of China
Subject
Energy (miscellaneous),Energy Engineering and Power Technology,Renewable Energy, Sustainability and the Environment,Electrical and Electronic Engineering,Control and Optimization,Engineering (miscellaneous),Building and Construction
Reference43 articles.
1. Challenges and prospects for constructing the new-type power system towards a carbon neutrality future;Zhang;Proc. CSEE,2022
2. Zhang, L.Q., Xie, J., Chen, X.Y., Zhan, Y.S., and Zhou, L. (2020). Cooperative Game-Based Synergistic Gains Allocation Methods for Wind-Solar-Hydro Hybrid Generation System with Cascade Hydropower. Energies, 13.
3. A Short-Term Optimal Scheduling Model for Wind-Solar-Hydro Hybrid Generation System with Cascade Hydropower Considering Regulation Reserve and Spinning Reserve Requirements;Xie;IEEE ACCESS,2021
4. Complementarity Maps of Wind and Solar Energy Resources for Rio Grande do Sul, Brazil;Gilberto;Energy Power Eng.,2017
5. Key Technologies and Research Prospects for Cascaded Hydro-Photovoltaic-Pumped Storage Hybrid Power Generation System;Han;Trans. China Electrotech. Soc.,2020